Document text
(ia I-7. 68
: AA) MOTOROLA LIMITED MCX1000
Communications Division DIGITA |-CAPABLE
TWO-WAY FM RADIO
136-162, 146-174 MHz
30/40 WATTS RF POWER
, VHF Service Manual
for Digital Capable Radio
68P02902A17
Issue B
COMPUTER SOFTWARE COPYRIGHTS
The Motorola products described in this instruction manual may include copyrighted Motorola computer programs
stored in semiconductor memories or other media. Laws in the United States, Canada and other countries preserve
for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or
reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer
programs contained in the Motorola products described in this instruction manual may not be copied or reproduced in
any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall
not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights,
patents or patent applications of Motorola, except for the normal non-exclusive royalty free license to use that arises
by operation of law in the sale of a product.
TECHNICAL MANUAL COPYRIGHTS
COPYRIGHT © 1988 Motorola Limited
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted without
the prior written permission of Motorola Limited.
SERVICE MANUAL ORDERING INFORMATION
Further copies of this Service Manual may be purchased by contacting either your local Motorola Service
Representative or the nearest Motorola Area Parts Office. Area Parts Office addresses are located on page v/vi.
Technical Documentation Department
3125 Steeles Avenue East, North York, Ontario, M2H 2H6
) eee ace lat GENERAL
P SAFETY
INFORMATION
Proper use of this radio requires that the following precautions be taken:
DO NOT operate the transmitter of a mobile radio when someone outside the vehicle is within
0.6 metres (two feet) of the antenna.
DO NOT operate the transmitter of a fixed radio (base station, microwave and rural telephone rf
equipment) or marine radio when someone is within 0.6 metres (two feet) of the antenna.
DO NOT operate the transmitter of any radio unless all RF connectors are secure and any open
connectors are properly terminated.
In addition,
< DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere.
All equipment must be properly grounded according to Motorola installation instructions for safe
operation.
All equipment should be serviced only by a qualified technician.
WARNING
ELECTRONIC ANTI-SKID BRAKING SYSTEMS
For vehicles equipped with electronic anti-skid braking systems, see “ANTI-SKID
BRAKING PRECAUTIONS?” Publication, Motorola Number 68P81109E34.
WARNING
VEHICLES FUELED BY LIQUEFIED PETROLEUM GAS
It is mandatory that radio installations in vehicles fueled by liquefied petroleum
gas conform to the standards of the country in which the radio is operated.
il
WARNING
RESTRICTED USE OF GLASS-MOUNT ANTENNAS
Non-Metallic Vehicles - DO NOT install any glass-mount antenna on fiberglass
or other non-metallic vehicles in mobile systems with transmit output power in
excess of seven (7) watts because such installations may result in the exposure
of the vehicle occupants to excessive radio frequency energy levels.
Metal Body Vehicles - In metal body vehicles, it is mandatory that the Motorola
supplied glass-mount antenna installation instructions covering location of the
antenna at the top of the front or rear window and cable routing be followed
exactly as described to ensure that vehicle occupants are not exposed to
excessive radio frequency energy levels.
If installations of this type have already taken place, notify your local Motorola
Service Representative immediately so that appropriate corrective action can be
taken.
WARNING
UNSAFE USE OF CONVERTED MOBILE
EQUIPMENT FOR PORTABLE APPLICATIONS
Motorola two-way radio products which have been designed for mobile operation
should not be used as battery operated portable units. In such use there is the
danger that the user or other persons will be exposed to excessive radio frequency
energy levels. This warning applies to all two-way radio equipment radiating in
excess of seven (7) watts rf power. Motorola strongly recommends that any
product which converts high power equipment for portable operation not be
used.
NOTE
In mobile installations, consider the occupants’ safety when choosing a location
for the radio. Do not mount the radio overhead or on a sidewall unless special
precautions are taken. Otherwise the radio could become unfastened in an
automobile accident and injure the occupants.
Refer to the appropriate sections of this product service manual for additional
pertinent safety information.
SERVICE
Motorola’s National Service Organization offers
a nation-wide installation and maintenance
program for communications equipment users.
This organization includes hundreds of authorized
Motorola Service Stations (MSS) located
throughout the United States and Canada, each
manned by one or more trained and licensed
technicians.
Motorola maintenance is available on either a
time and material basis or on a periodic fixed-fee
type arrangement.
Should you wish to purchase a service contract
for your Motorola equipment, contact your Motorola
Service Representative, or write :
@ in the United States
National Service Manager
Motorola Communications and Electronics, Inc.
1303 E. Algonquin Road
Schaumburg, Illinois 60196
® inCanada
National Service Manager
Motorola Limited
3125 Steeles Avenue East
North York, Ontario
M2H 2H6
ili/iv
>
>
REPLACEMENT PARTS ORDERING
ORDERING INFORMATION
Motorola maintains a number of parts offices
strategically located throughout North America.
These facilities are staffed to process parts orders,
identify part numbers, and otherwise assist in the
maintenance and repair of Motorola Commu-
nications Division products.
Orders for all parts except crystals, active
filters and channel elements should be sent to the
nearest area parts centre. Orders for instruction
manuals should also be sent to the area parts
centre.
When ordering replacement parts or
equipment information, the complete identification
number should be included. This applies to all
components, kits and chassis. If the component part
number is not known, the order should include the
All Mail Orders
Motorola, Inc.
Component Product Sales & Service
P.O. Box 66191, O’Hare International Airport
Chicago, IL 60666
Western Area Parts
1170 Chess Drive, Foster City, CA 94404
Tel: 415-349-3111, TWX: 910-375-3877
Pacific-Southwestern Area Parts
P.O. Box 85036, San Diego, CA 92138
Street Address:
9980 Carroll Canycn Road, San Diego, CA 92131
Tel: 619-578-8030, TWX: 910-335-1633
Gulf States Area Parts
P.O. Box 73115, 1140 Cypress Station, Houston, TX 77090
Tel: 713-537-3636, TWX: 910-881-6392
Southwestern Area Parts
P.O. Box 819049, 3320 Belt Line Road, Dallas, TX 75234
Tel: 214-888-6777, TWX: 910-860-5505
Midwest Area Parts
1313 E. Algonquin Rd., Schaumburg, IL 60196
Tel: 312-576-7430, TWX: 910-693-0869
Southeastern Area Parts
P.O. Box 368, Decatur, GA 30031
Street Address:
5096 Panola Industrial Blvd., Decatur, GA 30031
Tel: 404-987-2232, TWX: 810-766-0876
National Data Services
1171 West 17th Street, Tempe, AZ 85281
Tel: 602-994-6472, TWX: 910-951-1334
COMPONENT PRODUCT SALES & SERVICE OFFICE
(crystals, active filters, channel elements and reeds)
AREA PARTS OFFICES
number of the chassis or kit of which it is a part, and
sufficient description of the desired component to
identify it.
Orders for crystals, channel elements and
active filters should be sent to the Component
Product Sales & Service address listed below.
Crystal and channel element orders should specify
the crystal or channel element type number, crystal
and carrier frequency, and the model number of the
unit in which the part is used.
Orders for active filters should specify type
number and frequency, should identify the
owner/operator of the communications system on
which these items are to be used and should include
any serial numbers stamped on the components
being replaced.
Correspondence
Motorola, Inc.
Component Product Sales & Service
2553 N. Edgington Street, Franklin Park, IL 60131
Tel: 312-451-1000, TWX: 910-227-0799
Rocky Mountain Area Parts
20 Inverness Place East, Englewood, CO 80112
Tel: 303-790-2323, TWX: 910-935-0785
East Central Area Parts
12955 Snow Road, Parma, OH 44130
Tel: 216-433-1560, TWX: 810-427-9424
Eastern Area Parts
85 Harristown Road, Glen Rock, NJ 07452
Tel: 201-670-9673, TWX: 710-988-5614
Mid-Atlantic Area Parts
7230 Parkway Drive, Hanover, MD 21076
Tel: 301-796-8763, TWX: 710-862-1941
National Accounts
Railroad, Airlines, and Telephone Sales
1313 E. Algonquin Rd., Schaumburg, IL 60196
Tel: 312-576-6520, TWX: 910-693-0869
All Canadian Orders
Motorola, Ltd., National Parts Department
3125 Steeles, Ave. E., North York, Ontario M2H 2H6
Tel: 416-499-1441, TWX: 610-491-1032,
Telex: 06-526258
All Countries Except U.S. & Canada
Motorola, Inc., International Parts Department
1313 E. Algonquin Rd., Schaumburg, IL 60196. U.S.A.
Tel: 312-576-7241, TWX: 910-693-0869
Telex: 722443, Cable: MOTOL PARTS
v/vi
——"
MOTOROLA LIMITED MCxX1000 a
Communications Division DIGITAL CAPABLE
TWO-WAY FM RADIO
136-162, 146-174 MHz
30/40 WATTS RF POWER
FRONT MATTER
Title Page
Copyrights
Manual Ordering Information
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1. INTRODUCTION
0) MEOREKOTO EWC! Mes CIR ono). cn en nic 2 Hither a ek aA ste 1-1
BEL CORSO is LOCOLC MAlt insert tee Pm Sore r cious hae ala a's face a RoR UROL eR erm 1-1
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2. INSTALLATION AND OPERATION OF THE RADIO
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BeeO Der oti D 1NGLRUClIONS . mein. erm n ee eaten, Ar 6 Oa Calc tale ere de eee Oe walk ae es 2-5
Pemeetogramimingine nadior rom the Pront Panel ™\...2. cc. an ccs aes eae ee oe shew stares eens 2-10
See COMA CCESSOLIC Sure RM erent ory enn he near) Ie Cos oly oR OS pg hale ale Ss So ee eee eS 2-18
Peemtese TDi uct Op llO Ne me may meee mre. 5 ac Halk oh aieteis. wield a ye 45 se Hi al oe ie wad 2-19
Pee pions. miduexco. Digital Capable Radlosh.:.: 5.5.55: came cee ees eek cee tee as waa elite ees 2-24
SEO LIOCLG OmmuaLi Dic: © NAL CEMENT Mte Renny See mnee 6 oh ind o 4.08 Sah Name Rares gs Sale Sa aioe a Siete oS 2-26
3. GENERAL MAINTENANCE AND ALIGNMENT PROCEDURES
(f
viii
3:1 Radio Description! 7a. uk. + cine draneie a here eric iets Ges 0 silera. 5 & «gto Gon ikersk aaah) oe ene eee
3.2 Recommended Test Equipment for Maintenance and Alignment ................-+--.
3.0) Radio. SCLVICE POST AM ICR ayers are et Bets ob ona mas cpus. shh oes Seige hve emma
3.4 Safe Handling of CMOS Integrated Circuit Devices
Removal /-Replacementoft Chip Gamponents pe... 0. SsAn.. acta ete ae rie aoe eee
3:5 Radio Set Disassembly / Assembly tipi ees oe oon as en o's oe tla ee ona eee
3.6 “Transmitter: Alignment’ 05.5. scent Pee ke Ras he. os ong es bie ole ort ea ow rae
3:7 Receiver Alignment 2, arte se oe crates eee Pre ci dai sis one Seiee nega gale er sete anette
. RADIO FUNCTIONAL BLOCK DIAGRAMS AND CABLE KITS
4:1. Radio Functional(Block) Diagramme rs cee oi. sc es sie Fs Se et eee
4.2 Audio Block Diagra mis) s camer ness pace asta 5, © 28s Medd e eco hd ene a os Ne ean
& SaCabling diagrams-."0.pea ee eee Pree tesa 26 4) 5 yd oc ackala Slaten Sen eee ee eee
. CONTROL HEAD
Bib Control Head... s...5-g scree acetate terete ects ali co 2 sc 5/'y ss Gears RIS ye Oe
5.27 Control - Head Display. Boardiu ccs tesuae casa tiers 66s e+ 4 suchas ae euleetusleee irene ee ae
5. sukemote Mount Control Head: Microcomputer Board <..«...6..¢564..¢ 50s ouee ce er eee
5:4.aDash Mount Control Head Microcomputer Board’ 22). .....24 6.024 csnecus nee es eae
. RADIO MICROCOMPUTER SYSTEM
Sle Radio Microcomputer, Systeme was ee ee ae es se Saas bag Sees Cee
G2 COM MANGES OAH | 4.0 sane iene eeenean tials eieye teas & sha ow al sles wate dee 6 Wend eee eee
6.3: ‘Analog Interface Board’ acy Paes 3 st ee ae eh ew
oie rone Panel Interconnect Board! a. cas vic eh. capac ae ashe on) co. vee Ree rer eee
Gomme mote Interlace Doar aie ects ae 0 ae: som hie clear aoe t dss a) & eae al oceien aire era as
G:GeMDC G600/1200 Sionalling System’ -ws54.ocaa teas 00s ae 6 ec ianle a a ee ee
SYNTHESIZER AND VCO
@lgotandard Lock Frequency. Synthesizer on. 3 ce. ces. . .-ck eh ince a
Wwaerast.Lok Frequency Synthesiver: & ves sata Bie nie cents coe cute oe a LE nee
i23 V CO Goitage controlledoscillator) Module) 7 cu wiiec. jc 5.0. pee ae cio cu eee
4-1
4-]
4-1
5-1
5-1
5-2
5-3
6-1
6-1
6-2
6-2
6-2
6-3
7-1
7-2
7-4
,
8. RECEIVER AND TRANSMITTER
MIM RGTIGY Se errs gee EIR Erne NORM as SR EG vid tiaib a Riel id df Uh lead eke been: 8-1
PI LOCELVEL USC ETON eC PNSSOT D1 Vaee neta eRe Me foes, seen 0.65.6 oh deine bi ghia e uplae aoe 8408 8-1
Se ee VEIT ONC Seen MM nt esheets ate cies yo aye. t'w 0k «Ho idadetnja ed Gul adtemanted ak weed e's 8-1
Sas tarmonic. Filter EVomd ASSCMoly eee. cane 5c). aioe gieatitaits a ate tual DEIR ttn BR mai ee 8-4
8.5 Transmitter Low Level Amplifier Hybrid Assembly ................. 0.00000 eee ucuee 8-4
So) Pransmitter 10 Watiamplifier Hybrid Assembly. 7....°. 82.02 iad Meese a eeen te. 8-4
Big ransmitten 30, Watenmpiilier Myprid Assembly 3, ......-...4s cree tect ete es foes 8-4
Brom i ransmiccer Power Ampillicr INtercOnnect DOATC vac. «c.c02 an oe wetueras © Fensa caren « 8-4
SIGE WEr INCErCONDECE DOO T Can re een re eR ce A ai i ni Be whe lait Mylene € oponsna ball « 8-5
9. ACCESSORY INFORMATION
el UEVSCA ANG ae Lalit eh ec nd Rela olstal Sid = alae Oi iy keegan 8 Weare e tah Oh 9-1
SMREEELCYLLE! NEICEODN ONG aera We eae a Ne oe Oa Feb sop axe vasa vv dis) AED 4 age GEM tani cedet es. 9-1
Brom OSeMICTODRONE -.\. 2, ewer Re ieEe Be NF LS iF 5 we avg xin @ielennicSls. ohm capl- chek el CONOSIR Pa atk v2 9-1
Berm OUCH -Code: ENCOder Micro PHONG mee nO aaa ks hs om Sas loe ule tanta uses es kee 9-11
Pinmeviobile speaker Ulustrated Parts List 2. 22.4. .sclee een. Sak Se ae. 9-12
9.6 Base Station Mounting Tray and Speaker
MIsStrateacarts. LASt an C7 MME OER «or ou oes os he se REO hee oem ae tee 9-12
BHMEDUSe OLALION DOWCT,SUDDIY drm mmMe eres cleo 5 ss eid. o so 5. & acs ects ongnatonnyd Nida nie ou ce tied 9-27
APPENDIX A ERROR MESSAGES
EL OWEL- Wp pell Last > pee eee ae Pee ie ahh Le bea lated so oe eh es ME Se 6 A-1
PLOW EL UD ErLOn MeSSADES arte cutie ne ct ss orca tsa ie dc vis ote capes Matye wine ce yainn ale A-1
PMELCIGT ENC SSAQCS mee rem ie erF ee er i es cig. os Stk shar Eo: & Aish Sold. avSyn Wenge omer A-1
eC CLONINA LIES Weta ne e pee or eer oil e 8 oa) Puig Pary swab Ges 2 dunes Back of Manual
AVAILABLE BACKGROUND REFERENCE PUBLICATIONS ................. Back of Manual
FIGURE TITLE PAGE
SECTION 1. INTRODUCTION
1-1 Radio Sebimiodel Gnartimewwme mare tts ree meee tee weg ate 1-2
1-2 Panapm Breakdown Guar | emmenene ne oe. Ain oye § MME cas seer juste te @ busi 4.3 4 kale 1-3
1-3 Performance Specifications for the MCX1000 Radio .....................0005. 1-4
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
2-1 Psst ty Gas OOU: IN GGLO marmite tiers lene en eA Lette nee dich «ss yal Garess seve 2-2
2-2 Remotes vounteviC «1000 Controlt6AaG cs. 5.0) ck. areas dea ees Gee de eca's 2-2
ix
FIGURE
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
2-13
2-14
TITLE
MCX1000 Base Station .
Piloviet (ele! .s\uelte) te) fe/cel ie, (97s) le) (eiet\e| .0| 4, ‘s)-0,),0).8) 6) © =) 6m, @) 6,0) (s) ey ele le .s(6) ©) se ue) 6) (eels oes 161K)
Standard MCX1000 Radio: Controlsy na. es oo co ee ee eee
MCX1000 Scan Radio ..
OU ier ar EWA edie ne? lol's Volk eh io! (6) a Ke selene! a) Sen 'e- wwe) vel 6) ole 1g (Oe pee y.eid) @\ 19,10) “OlenenmnememaMeoniap.e)
MCX1000 Radio with Two-Level Priority Scan ...... 0.25. cece eee eee ee eens
Mounting Trays and Floor Mounting Adapter’ ©....30.../0 5.ife fae pisyateis a eae eet ae
Power Lead Connections for Mobile Radios
(Without the MBBVU3: Option Ree ce ceca onus obs sivas oteneque sree = GI te
Power Lead Connections for Mobile Radios with the MBB113 Option ..........
Power Lead Connections for Remote Mount Radios
(Without the MBBI1T3 Option) yeewee ais. ] Gs cas + bods do dene eee eee
Power Lead Connections for Remote Mount Radios
with the MBB113 Option
Power Lead Connections for Base Station Applications ....................45.
MCX1000 Mobile Radio with DTMF Microphone ......................-.005.
MCX1000 Radio with Singletone to follow Mode Selector Switch ..............
MCX1000 Radio with Selectable Singletone ................ 00. c eee eee eee eee
MCX1000 Radio with Dual Singletone’ 2.)......... 42.4) elena ee
MCX1000 Radio with Selectable PL/ DPL (alse s5,3 oan oe onde eee re
MCX1000 Radio with MDC EmergencyAlert
Activated by, Pushbutton on Contro! Head *..... << 4.2. + +225 a5..0e eee rene
Option Compatibility, Charting traces eos d oo 8 ope occ ee ee
SECTION 3. GENERAL MAINTENANCE AND ALIGNMENT PROCEDURES
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
3-12
3-13
MCX1000 Radio Bottom View with Cover Removed ..................000 0005
MCX1000 Radio Top View with Cover Removed ................ cece ee ee eees
Recommended Test Equipment for MCX1000 Radio Servicing .................
Recommended Test Equipment for Radio Specifications Verification ...........
Screw Torque Specifications ................... ia hacwd lnk eee ee eae
MCX1000 Radio Alignment Test Points; o). g4...7.0 oie ee eae eee ee
Examples of ‘Bye Pattern oymmetry cr 56... oo. so ales o cist 3-7 See ee
Widespace Dual Front End Alignment Points ..................0cccecceesces
MEX1LO00 AligninentProbe wart cso cccccia ins «Vs avin eo <8 ea
Main Board Side Tuning Probe Position (High Range) .......................4.
Synthesizer Side Tuning Probe Position (Low Range) ...................0.0005
MCX1000: Radio Sete xploded Views en cc iais 4 5 biv0 soca aban Seas ite ee
MCX 1000 Control Head Button Placement 2... 5. 26.2650. ssa so eee beens
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS AND CABLE KITS
4-1
4-2
4-3
4-4
4-5
Radio Functional Block. Diagrams mec uae os ck ete a ee
Receiver Audio Block Diagram: wince creer. - oe eee «el ee
Transmitter Audio Block Diagram = gee vias ess ee een ee ee
Remote Control Head Cable para lcs sc ees ee Bee ee
Radio Set Internal Cable
3-19
3-20
3-21
3-27
3-29
4-3
4-7
4-9
4-11
4-12
FIGURE TITLE PAGE
SECTION 5. CONTROL HEAD
5-1 -ControlbHead BlocksDiagrammeomn ives. Ae ee eee 5-5
5-2 Display.Board-Board Detailstmmaess 2-0 ance ate ee ae tes POs Ee Sis essen 5-7
5-3 Display Board ochematic Diagram tg. 0 5. ss eee ete ecto ions Weak 5-9
5-4 Displayeb0ard: bartsiistscaraee ee nee een se noe MINA male, Sb oe ba ded 5-10
5-5 Dash Mount Control Head Microcomputer Board-Board Details ............... 5-11
5-6 Dash Mount Control Head Microcomputer Board Schematic Dia. .............. 5-13
5-7 Dash Mount Control Head Microcomputer Board-Parts List .................. 5-14
5-8 Remote Mount Control Head Microcomputer Board-Board Details ............. 5-15
5-9 Remote Mount Control Head Microcomputer Board Schematic Dia. ............ 5-17
5-10 Remote Mount Control Head Microcomputer Board Parts List ................ 5-18
SECTION 6. RADIO MICROCOMPUTER SYSTEM
6-1 Radio Microcomputer System Functional Block Diagram ..................... 6-5
6-2 COMmmand: DOarG-DOALOMeCAIIS Meee. cts cd hikes. 6 sali ey wary ale aalie s 6-7
6-3 Conunand Board Sc Nemacice a OE AI ig sch atic vy snl Bee ovne Mise ns Akay ate + 6-9
6-4 Command, BOard-- arts s cme es he 25 bas « aasuveae' ars © » o5,0% RPO oon ent AR OR eee 6-12
6-5 Analog Interface Board-Board Details ................. ccc cece ce cee ences 6-13
6-6 Analog Interface Board Schematic Diagram .................. 0000s eee eeeeuee 6-15
6-7 Analog interiacesoard arts iste. mr eit ae. 4 die ac tah ewe tee. is oes « 6-16
6-8 Front Panel Interconnect Board-Board Details .................. 00.0 cece cues 6-17
6-9 Front Panel Interconnect Board Schematic Diagram ......................4.. 6-19
6-10 Front panel nterconnect boardiearts List: . [eiiesackcs oon! ore ae es sam a es 6-20
6-11 Remotednterface Board-DoardiDetalls )..0 4; : Bilas 0 Se ee A Rs ees 6-21
6-12 Remote Interface Board Schematic Diagram .............. 0.0: eee ue eens 6-23
6-13 Remote Interface, Board Parts Listima. set sia fe alls ee bah SEL Vas Waeeeea. wees 6-24
6-14 MDCGOC Kiltenioard: board WecallS i. Wen teh. agaics ss Cleon aba oe 6-25
6-15 MDC600 Filter Boardochemavc Dia pram a. cai. «0G. oak caer eh ace a) 5 6-27
6-16 MDCG600 Milter BoardiPanisisisthwr. Mina cadet. sid oo cechnchs ooteen WOMENS os ome 6-25
SECTION 7. SYNTHESIZER AND VCO
7-1 Standard Lock Frequency Synthesizer and VCO- Block Diagram ............. 7-5
7-2 Standard Lock Frequency Synthesizer Board-Board Details .................. 1-7
1-3 Standard Lock Frequency Synthesizer Board Schematic Diagram ............. 7-9
7-4 Standard Lock Frequency Synthesizer Board Parts List ...................... 7-10
7-5 Fast-Lok Frequency Synthesizer andVCO Block Diagram .................... 7-11
71-6 Fast-Lok Frequency Synthesizer Board-Board Details ........................ 7-13
1-7 Fast-Lok Frequency Synthesizer Board Schematic Diagram .................. 7-15
7-8 Fast-Lok Frequency Synthesizer Board Parts List ............... 0.0 .ceeeueee 7-16
71-9 2 PPM Channel Element Board & Synthesizer Interconnect Bd. ............... 7-17
7-10 Synthesizer RF Amplifier Board-Board Details & Parts List .................. 7-17
7-11 Voltage Controlled Oscillator Schematic Diagram ....................00e sees 7-19
FIGURE
TITLE
SECTION 8. RECEIVER AND TRANSMITTER
8-1
8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-11
8-12
8-13
8-14
8-15
8-16
Widespace Dual Front End Boards-Board Details ...................2.000005.
Widespace Dual Front End Boards Schematic Diagram .......................
Widespace Dual Front End Boards Parts List .................02 cece eee eee
Main Board-Board Detailsv]. w+ 5 hee Gales, ce Maas ee oe es eee
Main Board Receiver schematicjo.4 2 ss. . fs.e0s dead eu oaltehoe een eee ee
Main Board Parts Mastin ew eee rs on eek oe oh bess ee eeeeea ence
Main Board/ Transmitter Schematic Diagram ................... 00 eee eee
Harmonic Filter Hybrid Assembly-Board Details ..................00 eee eee
30 Watt P: Asinterconnect Board... 4 a6 0 l2sicis. sn kis Whi ani em eI ts
10 Watt Power Amplifier Hybrid-Board Details ......................00.00005
Low Level Amplifier Hybrid-Board Details ............... 0... e cece eee
30 Watt Power Amplifier Hybrid-Board Details .................... 000. e eee
Power AmplifiersiSchematic Diagrany, 0.) 22.3 ass defo 2a ce ee
Power Amplifiers:Parts lists eset 2s as 6 5-854 eee aoe o nue apie ot peer
Power Interconnect Board Schematic Diagram & Parts List ...................
Power Interconnect Board-Board Details .............. 20.0... eee eee eee ees
SECTION 9. ACCESSORIES
9-1
9-2
9-3
9-4
9-5
9-6
9-7
9-8
9-9
9-10
9-11
9-12
9-13
9-14
9-15
9-16
9-17
9-18
9-19
9-20
9-21
9-22
9-23
xii
Mobile Microphone Exploded Views ch. 5.3.6.0 da) Gee ee ee
Mobile Microphone Board Schematic Diagram .................. 0c eee cence
Mobile. Microphone: Parts Lastiene loci i fiae4 «546 eee ee ee ee ee ee
Mobile Microphone Board-Board Details ................ 002. e eee eee eee eee
Base: Microphone Exploded:v tewi 26.8.0 1.000. svawhite See ee eee eee
Base Microphone:Parts Gisty pees fom cist 6 cts ws a 0ia les 2) ae cere
Base Microphone Board-Board Details .............. 0... ccc cece eect eee eees
Base Microphone Board Schematic Diagram ................. 00 cc eee neces
Touch-Code Encoder Microphone Functional Block Diagram ..................
Touch-Code Encoder Microphone Exploded View ..................00ceeeeee
Touch-Code Mic. Tone / Logic Board - Board Details ......................000.
Touch-Code Mic. Tone/ Logic Board Parts List ................. 00.0000. ee euee
Touch-Code Mic. Tone/ Logic Board Schematic Diagram .....................
Touch-Code Mic. Microphone / Beeper Board-Board Details ...................
Touch-Code Mic. Microphone / Beeper Board Parts List .......................
Touch-Code Mic. Microphone / Beeper Board Schematic Diagram ..............
Mobile Speaker Illustrated Parts Lists: y:..weanipieer bend eee eee
Base Station Speaker Tray Illustrated Parts List .......................0000-
Power Supply Regulator Board Parts List ............... 00... ccc eee ee eee ee
Power Supply Regulator Board-Board Details .....................000c cc cue
Power Supply Regulator Board Schematic Diagram ..........................
Power Supply Chassis Parts bisa225.00 9 46)\)7 ee i i ee eae
Base Station Cable Kit Deteils.0 iio. icone) sas ae see e ay, Be eee eee
PAGE
>
(AA) MOTOROLA LIMITED
Communications Division
1.1 SCOPE OF MANUAL
This manual is intended for use by
experienced technicians familiar with similar
types of equipment. It contains the required
service information for the equipment described
and is current as of the printing date. Changes
which occur after the printing date are
incorporated by Manual Revisions. Revisions
reflecting the latest engineering changes in the
equipment are inserted into the manual before
shipment from Motorola.
1.2 RADIO SET MODEL CHART
The Radio Set Model Chart (Figure 1-1) gives
a complete breakdown of each radio model. This
model breakdown listing consists of tanapas and
kits. (A tanapa contains a group of kits whereas a
kit contains piece parts and groups of piece parts
called assemblies.)
SECTION 1.
INTRODUCTION
13 TANAPA BREAKDOWN
CHART
The Tanapa Breakdown Chart (Figure 1-2)
describes the kits which are contained in each
tanapa used in the radio. The parts lists for kits
are located with the appropriate schematic
diagrams and board details or with the radio
exploded view. See the List of Figures for a
complete listing of all parts lists and drawings .
1.4 PERFORMANCE
SPECIFICATIONS
The Performance Specifications Chart (Figure
1-3) describes the mechanical, electrical and
electronic characteristics of the MCX1000 Radio
Set.
1.5 METRIC MEASURE
Unless indicated otherwise, measurements
given in this manual are in metric units, with
imperial units following in brackets.
1-1
SECTION 1. INTRODUCTION
lw
VHF MCX1000 DIGITAL CAPABLE = ce
RADIO SET MODEL BREAKDOWN 4
ES
< e a
CODE: Fs} x a
@ = ONEITEM SUPPLIED WITH EACH RADIO “ x
© = ONE ITEM SUPPLIED DEPENDENT UPON FREQUENCY B! 2
< <t
& = ONEITEM SUPPLIED AS SHOWN 5 5
a1 5
ms =
CC i
MBTRN4696A BOARD , POWER AMPLIFIER INTERCONNECT
VKN4140A CABLE, 17 FT. CONTROL
VKN4147A INTERNAL RADIO CABLE
VKN4151A POWER CABLE, 18 FT.( REMOTE MOUNT RADIO)
VLN1108A DASH CONTROL HEAD ASSEMBLY
VLN1109A REMOTE CONTROL HEAD ASSEMBLY
VLN4624A BOARD, SYNTHESIZER INTERCONNECT
VLN4663A BOARD, FRONT PANEL INTERCONNECT
VLN4665A BOARD, REMOTE INTERFACE
VLN4672A NAMEPLATE, VHF
VLN4707A BOARD. MICROCOMPUTER 8K EE
VLN4720A HARDWARE, REMOTE MARRY UP
VLN4770A BOARD. MAIN, DIGITAL 25 / 30 KHz
VLN4845A HARDWARE, VHF , MARRY UP
VLN4666A BOARD, MICROCOMPUTER 2K EE - Option
VLN4733A MDC FILTER BOARD - Option
Note Option Compatibility Chart is located on page 2-26
Figure 1-1 Radio Set Model Chart
1-2
SECTION 1 INTRODUCTION
TANAPA BREAKDOWN CHART
MBTLN2324B Chassis
Contains:
-MBTRN4602A Tx Feed Through Plate
-MBTRN4603A Chassis Hardware
-MBTRN5365A Power Interconnect Board
—~
MBTLN2334B 30 Watt Power Amplifier
Contains:
-MBTLD9151A 30 W VHF PA Hybrid
-MBTRN4905A 30 W Heat Sink Hardware
VLD1051A Dual Front End (Range 1)
VLD1052A Dual Front End (Range 2)
Contains:
-MBTRN5001A Dual Front End Hardware
-VLN4553A Coils and Hardware
-VLN4554A Housing Assembly
VLD1081A VCO
Contains:
-VLD4081A Hybrid VCO Standard VHF R1
-VLN4628A VCO Hardware
VLD1082A VCO
|
Contains:
| -VLD4082A Hybrid VCO Standard VHF R2
-VLN4628A VCO Hardware
VLN1108A Control Head
(dash mount models)
Contains:
-VLN4667A Display Board
-VLN4668B Dash Control Head Micro-
computer Board
-VLN4670A Dash Control Head Hardware
VLN1109A Control Head
(remote mount models)
Contains:
-VLN4667A Display Board
-VLN4669A Remote Control Head Micro-
computer Board
-VLN4671A Remote Control Head Hardware
VMN1016A Mobile Microphone
Contains:
-VLN4765A Microphone Board
-VLN4712A Microphone Hardware
VMN1017A DTMF Microphone
Contains:
-VLN4383A Logic Board
-VLN4823A Beeper Board
-VLN4386A Touch Tone Keypad
-VLN4713A Hardware
VMN1018A Base Station Microphone
Contains:
-VLN4824A Microphone Board
-VLN4714A Microphone Hardware
Figure 1-2 Tanapa Breakdown Chart
SECTION 1. INTRODUCTION
GENERAL TRANSCEIVER DIMENSIONS AND WEIGHT
No. of Modes/Zones: 56/8 or 128/24 Front Mount Remote Mount
Squelch Option: Carrier Squelch, Private Line and Length mm (inches) 291 (11.5) 295 (11.6)
Extended Length 338 (13.3) 340 (13.4)
Width mm (inches) 179 (7.0) 179 (7.0)
Height mm (inches) 51 (2.0) a (P40)
Weight kg (Ib) 3.7 (8.0) 4.0 (8.1)
Digital Private Line are standard
and available in the same radio
unit.
Primary Power: 13.6 V Nominal, Negative Ground
Channel Resolution: | Multiples of 5.0 KHz or 6.25 KHz
Frequency Range: 136-162, 146-174 MHz CONTROL HEAD DIMENSIONS AND WEIGHT
RF Power Output: 40 Watts typical, for U. S. Length (depth) mm (inches) 61.5 (2.4)
30 Watts , Canada (EIA) Width mm (inches) 179 (7.0)
Receive Current Height mm (inches) 51 (2.0)
at Rated Audio: 1.8A
Transmit Current
at Rated Power: 8A (at 30 Watts)
Standby Current! 1A
Weight (with
microphone) kg (Ib) 1.22 (2.9)
Speaker Weight kg (Ib) Shee bere)
TRANSMITTER (specifications at 30 Watts output) RECEIVER
Output Impedance: 50 ohms
Frequency Stability: +0.0005%; optional +0.0002% Audio Output: EIA: 5 Watts at 3% distortion
_ From -30 °C to +60 °C Input Impedance: 50 ohms
ambient EIA Modulation
(+25 ° C reference)
Spurious and Harmonics: 85 dB below carrier
Modulation: (16F3) + 5 KHz
Audio Sensitivity: 80 mV nominal for 60% system
deviation
50 dB (+25 ° C reference)
Acceptance: + 7 KHz
Frequency Stability: +0.0005%; optional + 0.0002%
From -30 ° C to +60 °C
ambient
FM noise:
Audio Response: + 1/-3 dB from 300 to 3000 Hz Receiver Channel
Audio Distortion: 3% at 1000 Hz at 60% deviation Spacing: 30 KHz or 25 KHz (EIA)
Frequency Separation: 26 or 28 MHz Sensitivity
EIA SINAD: 0.30 uV
VIBRATION AND SHOCK METHODS merle Mca eA un Getic!)
85 dB (25 KHz spacing)
veer Vibration intermodulation: 80 dB
Standard: MIL810D
Method: 514.3
Procedure: Curve NAVMAT P-9492
Radio
Performance: Meets or exceeds published
specifications following vibration.
Spurious and
Image rejection: 85 dB
Squelch Sensitivity: Carrier squelch (fixed): 10 dBQ
Tone coded squelch (fixed):
6 dBQ
Digital coded squelch (fixed):
TEST: Shock 6 dBQ
Standard: MIL810D Frequency Separation: 12 MHz
Method: 516.3 Note: Receiver separation of
Procedure: III up to 20 MHz possible with
Radio some performance degradation.
Performance: Meets or exceeds published
specifications following shock.
Figure 1-3 Performance Specifications for the MCX1000 Radio
1-4
»
MOTOROLA LIMITED
Communications Division
SECTION 2.
INSTALLATION
AND OPERATION
OF THE RADIO
2.1 OVERVIEW OF THE RADIO
2.1.1 GENERAL DESCRIPTION
The MCX1000 is a multiple frequency,
multiple zone capable, synthesized FM mobile
radio. It is a 30/40 watt radio, available in the VHF
frequency range of 136 to 174 MHz and in the UHF
frequency range of 403 to 430 MHz. and 440 to 470
MHz. MCX1000 is available in front mount (Figure
1), remote mount (Figure 2) or base station (Figure
3) configurations.
“The radio has an eight character vacuum
fluorescent alpha-numeric display. Modes*, zones*,
codes and tones can be named with such titles as
“FIRE”, “POLICE”, etc., or whatever best
communicates to you the meaning of that mode.
The MCX1000 uses an EEPROM (Electrically
Erasable Programmable Read Only Memory
Device). This enables the personality of the radio to
be changed in the field. For example, mode names
may be redefined, frequencies added, deleted or
changed, or other radio characteristics altered.
* In any discussion involving the MCX1000
Radio, the terms “mode” and “zone” are often used.
Their definitions follow.
MODE- A mode consists of a Transmit or Receive
frequency plus a collection of personality
parameters; i.e. PL/DPL codes, slaved singletone,
busy mode lockout, alphanumeric mode name. The
word “channel” is often used synonymously with
the word “mode” though the correct definition of
“channel” is only a transmit and receive frequency
that does not carry personality parameters.
ZONE- A zone is a collection of modes often used for
geographical grouping.
2.1.2 ELECTRICAL CHARACTERISTICS
The MCX1000 radio has excellent transmitter
and receiver performance specifications and a
sophisticated channel scan monitoring system.
Accelerated Life Testing (ALT) of radio sets in the
design stage helps to ensure reliability.
The MCX1000 incorporates the latest in
advanced surface mount microprocessor technology.
The radio is capable of combining Private-Line,
Digital Private-Line and Carrier Squelch modes all
in one radio model. Digital capable models of the
MCX1000 are available to provide a radio capable
of handling Securenet voice encryption. The design
of the radio is flexible enough to allow changes to its
option package as your communication needs grow
and evolve. Finally, the Digital MCX1000 is able
to handle high speed data transmissions.
2.1.3 MECHANICAL CHARACTERISTICS
The radio has a die cast metal chassis. Top
and bottom covers are constructed from aluminum.
The control head is made of a polycarbonate
compound able to withstand the toughest
environments as well as temperature extremes.
The radio has the ability to survive MIL Std 810C
and 810D for shock and vibration.
The modular construction of the MCX1000,
the simple mechanical design of its parts, and the
ease with which the radio can be assembled
translates into reduced down time and reduced
servicing costs.
2-1
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
8 CHARACTER
ALPHA-NUMERIC
DISPLAY AREA A ra ZONE DOWN
os Oe BUTTON
ZONE UP
BUTTON
Pi oe
PUSHBUTTON Be MONITOR
BUTTON
SQUELCH DEFEAT
BUTTON
OFF-ON VOLUME
CONTROL
TRANSMIT = BUSY LIGHT PROGRAM MODE
INDICATOR =INDICATOR BUTTON AND SELECTOR
INDICATOR
Figure 2-1 Front Mount MCX1000 Radio
8 CHARACTER
ALPHA-NUMERIC ZONE DOWN ZONE UP MONITOR
DISPLAY AREA BUTTON BUTTON BUTTON
reine
PUSHBUTTON SQUELCH DEFEAT
BUTTON
OFF-ON VOLUME
CONTROL
TRANSMIT BUSY LIGHT PROGRAM MODE
INDICATOR INDICATOR BUTTON AND SELECTOR
INDICATOR
Figure 2-2 Remote Mount MCX1000 Control Head
2-2
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
2.1.4 MCX1000 STANDARD RADIO
OFFERING
MCX1000 is available in the following model
configurations:
@ VHF or UHF
@ Front Mount or Remote Mount
@ 56 mode/8 zone or 128 mode/24 zone
© Non-Digital or Digital capable modulation
All Models
All MCX1000 mobile radio models come
standard with the following:
® 8 character alph-numeric display
e@ Transmit indicator
@ Busy Light Indicator
@ Squelch Button
@ Monitor Button
@ Dim Button
@ Rotary Volume and Mode Controls
®@ Zone Up and Down Buttons
® Program Button and Indicator
@ 30/40 watts power output (UHF-30 watts)
@ 56 mode/8 zone OR 128 mode/24 zone
capability (depending on model ordered)
@ Multiple coded squelch capability
accomodating Carrier Squelch, PRIVATE-
LINE and DIGITAL PRIVATE-LINE in one
radio model
@ 60 second duration Time-Out-Timer
@ Broad transmit and receive bandwidths
@ EEPROM field reprogramming capability
@ Survives MIL Std 810C and MIL Std 810D
for shock and vibration
© Operates from a 12 VDC negative ground
@ User programmability from the front panel
(Program Button)
® Microphone with hang-up clip
@ Unity gain 1/4 wave antenna
@ Mounting tray and hardware
@ Owner’s manual- English
Front Mount Models
© Speaker with 17 ft. (5.2 meter) cable
@ 10 ft. (3.0 meter) negative ground cable kit
Remote Mount Models
® Control Head with 17 ft. (5.2 meter) plug in
cable
@ Speaker with 17 ft. (5.2 meter) cable
@ 18 ft. (5.5 meter) negative ground cable kit
MCX1000 Options
Options are listed in point form below. Fora
description of these options, refer to Section 2.6 in
this manual.
OPTIONS INTERNAL TO THE RADIO
@ Omit user programming from the front
panel of the radio
@ 2 ppm stability
@ Fast lok synthesizer
@ Lower Range VHF, 136 to 162 MHz.
© Omit Time-Out-Timer
@ Non-standard Time-Out-Timer
® Omit Alert Tone
2-3
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
8 CHARACTER
ALPHA-NUMERIC TRANSMIT ZONE DOWN ZONE UP
DISPLAY AREA INDICATOR BUTTON BUTTON
MONITOR
BUTTON
SQUELCH DEFEAT
BUTTON
MONITOR
BAR
OFF-ON VOLUME
pep eaul CONTROL
BASF STATION BUSY LIGHT PROGRAM MODE
MOUNTING TRAY INDICATOR BUTTON AND SELECTOR
INDICATOR
Figure 2-3 MCX1000 Base Station
TRANSMIT ZONE DOWN ZONE UP MONITOR
INDICATOR BUTTON BUTION BUTTON
BUSY LIGHT
INDICATOR
SQUELCH DEFEAT
8 CHARACTER BUTTON
ALPHA-NUMERIC 7, :
DISPLAY AREA
OFF-ON VOLUME
CONTROL
PROGRAM MODE
BUTTON AND SELECTOR
INDICATOR
Figure 2-4 Standard MCX1000 Radio Controls
2-4
3
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
® Disable Lighting
Scan Options
@ Operator selectable scan
@ Add 2 level priority
@ Priority to follow mode selector switch
@ Omit spontaneous 4 ft
Singletone Signalling |
@ Singletone to follow mode selector switch
® Selectable singletone
@ Dual singletone
@ Singletone with non-standard duration
PL/DPL Signalling
© Selectable PL/DPL
©@ Transmit Inhibit on Busy Mode
MDC Signalling
® Unit Identification and Emergency Alert
(MDC1200 and MDC600)
® Emergency Alert activated by pushbutton
on control head
@ Emergency Alert activated by hidden
pushbutton
@ Emergency Alert activated by hidden
footswitch
General
@ 56 Mode Operation (UXA models only)
@ Railroad Requirement (UXA models only)
Encryption
Voice encryption is available for the Digital
MCX1000 Radio in several option
configurations. Refer to Section 2.7 for a
description of the encryption options.
OPTIONS AND ACCESSORIES EXTERNAL TO
THE RADIO
© Base station speretib
® Omit base station power supply and cables
@ DTMF microphone
® Spare control head
® Omit antenna, cable and connectors
® Broadband antenna
® Omit mobile microphone
® Omit speaker
® Omit battery cable
@ Omit mounting tray and installation kit
@ Omit all accessories
® Mounting tray with right hand lock
® Hinged mounting bracket
® Security Housing
® Ignition switch transmitter control
® Remote mounting kit
® Service Manual
2.2 OPERATING INSTRUCTIONS
2.2.1 STANDARD MCX1000 CONTROLS
Figure 2-4 illustrates the controls that are
standard on every MCX1000 Radio. A brief
description of each of the standard controls is
included below.
Alpha-Numeric Display Area
The alpha-numeric display is capable of
displaying up to 8 characters, and will show all 26
letters (upper case only) and numbers (0-9
inclusive).
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
Busy Light Indicator
This indicator is lit whenever there is a carrier
present on the selected mode.
Transmit Indicator
This indicator is lit whenever the transmitter
is keyed.
Zone Select Buttons
The Zone Buttons are used to move radio
operation from one zone to another. Initially the
factory programs the radio so that the zone names
displayed are ZONE A, ZONE B etc. The first time
either of the zone buttons is pressed, the radio
display changes from showing the name of the
“mode” it is operating on to the name of the “zone” it
is currently operating in. Pressing the Zone Up
Button a second time within three seconds causes
the radio to advance one zone and display the new
zone name. (If the Zone Up Button is pressed and
held, the radio and its display advance through
zones at a rate of three zones per second.) The Zone
Down Button works in the opposite manner. An
audio tone will be heard as the radio changes from
one zone to another. The zone name being displayed
will revert back to the mode name in 3 seconds, or
will revert immediately when the mode selector
switch is rotated.
Monitor Button
Pushing the Monitor Button will cause the
radio to show the status of the PL or DPL operation
in the display. If PL or DPL is enabled, the display
will show “MON OFF”. If PL or DPL is disabled to
monitor the channel activity, the display will show
“MONITOR”. Pressing the Monitor Button a
second time within three seconds will change the
PL or DPL status. In addition, an audio tone will be
heard to acknowledge the change in PL or DPL
status.
Squelch Defeat Button
If the radio is squelched, pushing the squelch
button will cause the radio to become unsquelched.
The radio audio will remain unsquelched until the
squelch button is again pushed. This is useful for
setting speaker volume.
2-6
Off/On Volume Rotary Control
This control is used to turn the radio on and off
and to set the volume. Fully counter-clockwise is
off; the volume is increased with clockwise rotation.
Information which has been programmed from the
front panel will be retained in the radio memory
when the radio is turned off.
Mode Selector Rotary Control
Turning the Mode Selector Switch will cause
the mode and the mode name in the radio display to
change. Initially the factory programs the radio so
that the mode names displayed are MODE 1,
MODE 2 etc. The selector has no end stop, and an
audio tone is heard when the last mode is passed
and the rotary sequence is repeated.
Program Button
This button is used to place the radio in the
program mode of operation; ie., when the radio is to
be reconfigured from the front panel. The Program
button is used to initiate the assignment of modes to
zones and the configuring of scan lists within zones.
(See Section 2.3 for further information.) It is also
used to temporarily delete a mode from the scan list
while the radio is scanning.
If the Omit User Programming From the Front
Panel option is ordered, the Program button cannot
be used as described above. Alternatively, Service
Programming may limit the use of this button to
either initiate the assignment of modes to zones or
configure the scan lists within zones.
Program Indicator
This LED is lit whenever the radio is in the
programming mode of operation.
Dim Button
This button is used to alter the light intensity
of the display. Consecutive pushes of the DIM
Button will step the display panel through three
light intensities : BRIGHT, DIM and DIMMEST.
The addition of a fourth light intensity (OFF
position) is an option on the MCX1000. This OFF
position turns off the display panel as well as the
backlighting of all buttons on the radio.
@
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
The Disable Lighting option may be useful when
the radio is being used in a surveillance application.
2.2.2 TO TURN THE RADIO ON
Turn the off-on/volume control clockwise
until a click is heard. Depending on the
installation, you may also be required to turn on the
ignition switch of your vehicle.
2.2.3 TO RECEIVE
Use the following sequence to set the volume
control of your radio to a comfortable listening
level.
Turn the radio on.
If no audio is heard, press the squelch button.
Adjust the volume control to the desired level.
Press the squelch button again to again mute
* the audible background noise.
Loe cal el ee
Note- For Digital MCX1000 Radios with
Encryption: If the incoming message is encrypted
with a key that is different from the radio key, noise
will be heard from the speaker. In radios equipped
with the Proper Code option, the noise will not be
heard unless the microphone is off-hook or the
Monitor function enabled.
2.2.4 TO TRANSMIT
NOTE
For mobiles equipped with the
“Ignition Switch Transmitter
Control” option, the transmitter
cannot be operated unless the
vehicle ignition switch is turned on.
Non-digital MCX1000 Radios
1. Before starting transmission, monitor all traffic
on the selected mode to ensure that it is not in use.
In order to monitor with a PL/DPL radio, remove
the mobile microphone from its hang up clip or push
the monitor button, or depress and hold the monitor
bar on a base station microphone.
2. If the mode is clear, you may transmit your
message. To do this, hold the microphone
approximately 2 inches from your mouth, depress
and hold the push-to-talk (PTT) button (or Transmit
bar on base stations), and speak into the
microphone. The Transmit Indicator lights. After
finishing your message, release the PTT
pushbutton to receive a reply.
3. After completing the call, place the mobile
microphone in the microphone hangup clip. For
base stations, depress the Monitor paddle.
Digital MCX1000 Radios with Encryption
CLEAR/CODED SELECT BUTTON SYMBOL Q
1. Press the Clear/Coded Select Button to choose
either clear voice or encrypted voice operation. The
word “CLEAR” or “CODED” appears in the display.
Also, the Clear/Coded Indicator lights when coded
operation is selected. On models with the Dual
Code option, select the desired code for transmitting
by pressing the Code Select Button (1\2). The word
“CODE 1” or “CODE 2” appears on the display for
one second. The Code Select Indicator lights when
you have selected code 2.
2. Before starting transmission, monitor all traffic
on the selected mode to ensure that it is not in use.
Remove the mobile microphone from its hangup clip
or depress the Monitor bar on the base station
microphone. If the mode is clear, you may transmit
your message.
3. Hold the microphone approximately 2 inches
from your mouth, depress and hold the push-to-talk
(PTT) pushbutton (or Transmit bar on base
stations) and speak into the microphone. The
Transmit Indicator lights. On dual code radios, the
selected code, “CODE 1” or “CODE 2”, is displayed
for one second when the transmitter is keyed. The
transmitted audio is either encrypted or non-
encrypted, depending upon the selected operation.
If the transmitted audio of an encryption capable
radio is non-encrypted, a short tone or beep is heard
immediately after the microphone is keyed. After
finishing your message, release the PTT
pushbutton to receive a reply.
2-7
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
4. (Mobile units only) After completing the call,
place the microphone in the microphone hangup
clip.
2.2.5 TO TURN RADIO SET OFF
Turn the off-on/volume control completely
counterclockwise until a click is heard. (In mobile
installations in which the green wire is connected to
the accessory side of the ignition switch, the radio
may also be turned off by turning off the vehicle
ignition switch).
2.2.6 OPTIONAL MCX1000 CONTROLS
Scanning Controls
OPERATOR SELECTABLE SCAN (See Figure 2-5)
To Operate Scan Function.
If you are already operating in the zone you wish to
scan:
1. Make sure that the microphone is in the hangup
clip (on hook). Press the SCAN button. The word
“SCANNING?” will appear on the display, the Scan
indicator will light, and the receiver will commence
scanning all modes in the scan list of the zone.
2. When an active mode with the correct signalling
code is detected, the scanner stops, the alpha-
numeric display indicates this mode, and the
operator hears the call. To respond to the call, lift
the microphone off-hook during the call or within 2
===
y ;
(®) MoTOROLANEx'00
°
i 4 eras ee UR
i (2
PROGRAM
BUTTON AND
INDICATOR
SCAN BUTTON
AND INDICATOR
Figure 2-5 MCX1000 Scan Radio
2-8
seconds of the end of the call. If the microphone is
not lifted off-hook within this time period, the radio
resumes scanning.
3. With the microphone off-hook, converse in the
normal manner. At the end of the conversation,
place the microphone on-hook. The radio will
resume scanning.
4, It is possible to temporarily delete a mode from
the scan sequence because of annoying heavy
traffic. While the scanner is on and stopped on the
mode to be deleted (microphone on-hook), press the
PROG (program) button . The scanner will now
skip that mode until the scanner is turned off or the
microphone is taken off-hook. Other modes may be
deleted as required until there is only one mode
remaining.
If you are not already in the zone you wish to scan:
Using the Zone Up or Zone Down buttons,
move to the zone you wish to scan as indicated by
the alpha-numeric display. The zone name will
remain on the display for 3 seconds, and then the
display will change to the last selected mode in the
zone. Then perform steps 1, 2, 3 and 4 just discussed
above.
TWO LEVEL PRIORITY SCAN (See Figure 2-6)
If your radio is equipped with priority scan and
the scanner is turned on, a call on the first level
priority mode overrides any other call that you are
listening to, and a call on a second level priority
mode overrides any call except a first level priority
SCAN BUTTON
AND INDICATOR
mf
@® mororotamdx
PRIORITY BUTTON
AND INDICATOR
PROGRAM
BUTTON AND
INDICATOR
Figure 2-6 MCX1000
with Two-Level Priority Scan
)
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
call. When this occurs, the Priority indicator lights,
the radio display shows the name of the priority
mode, and an alert tone is heard in the speaker,
followed by the verbal priority message. NOTE:
The Priority indicator will flash if the message
received is on the first level priority mode. If the
message received is on the second level priority
mode, the Priority LED will light continuously.
With priority scan (unless MBB316 “Omit
Spontaneous Priority“ has been ordered), the last
mode transmitted on is temporarily assigned to the
second level priority status. The reassignment lasts
for a period of 60 seconds after the microphone is
placed on hook. The reassignment period assures
that the operator hears any follow-up messages.
Your radio can be routed to its first level
priority mode within a zone quickly and easily
when you are not scanning or when the microphone
is “Off Hook”. To access your first level priority
mode, push the PRIORITY button. The radio and
its display immediately moves to the first level
priority mode and a tone is heard. If there is no first
level priority mode, the radio moves to the second
level priority mode, and a tone is heard.
2.2.7 SELECTABLE PL/DPL
Up to 16 (56 mode, 8 zone models) or 32 (128
mode, 24 zone models) PL/DPL codes may be
selected on the MCX1000. To change the PL/DPL
code of an MCX1000 radio, the shaded arrow
buttons on the radio front panel are employed. (See
Figure 2-17. Note that these button locations
change when radios have the encryption option.)
Use these buttons to call up the desired PL/DPL
code. Codes will be shown on the alpha-numeric
display of the radio. When at the desired code,
simply wait 3 seconds for the radio display to revert
back to showing the mode name. This 3 second wait
can be avoided by turning the Mode Selector switch
one notch in either direction so as to call up the
mode name immediately. The radio now carries the
new PL/DPL code.
2.2.8 SINGLETONE SIGNALLING
Singletone to Follow Mode Selector Switch
(See Figure 2-14)
A single one second encode tone is
transmitted from the radio when the Singletone
button (marked with a musical note) on the radio
front panel is pushed. Holding the Singletone
button depressed beyond the one second timed
interval causes the radio to transmit the singletone
for as long as the button is depressed.
Selectable singletone
(See Figure 2-15)
Up to 10 (56 mode, 8 zone models) or 32 (128,
24 zone models) encode tones may be selected for
transmission on the MCX1000. A singletone is
selected through a sequence of button pushes
involving the Program button (see Selectable
Singletone Programming instructions in this
section). By depressing the Singletone button
(marked with a musical note) on the radio front
panel, the selected tone is transmitted. The
standard transmission time is one second. Holding
the Singletone button depressed beyond the one
second timed interval causes the radio to transmit
the singletone for as long as the button is depressed.
Dual Singletone (See Figure 2-16)
An MCX1000 Radio having the Dual
Singletone option is capable of transmitting two
independent encode tones by means of the “1” or “2”
buttons on the radio front panel. To send a
Singletone transmission, the desired tone button is
pressed. The standard transmission time is one
second. Holding a Dual Singletone button
depressed beyond the 1 second timed interval
causes the radio to transmit the Singletone for as
long as the button is depressed.
2.2.9 MDC SIGNALLING
MDC1200 and MDC600 Signalling - Unit
Identification
Each time the Push-to-talk button on the
microphone is depressed, a specific pre-programmed
burst of data is transmitted to the base station,
identifying the radio unit.
MDC Signalling - Emergency Alert Activated
by a Pushbutton on the Control Head
(See Figure 2-18)
Pressing the unlabeled “Emergency” button
on the radio front panel sends a silent data burst
2-9
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
to the base station informing it of the identity and
emergency status of the radio. The red emergency
indicator and the PTT indicator are both
illuminated to indicate that the message is being
transmitted.
MDC Signalling - Emergency Alert Activated
by a Hidden Pushbutton
Activating a hidden pushbutton sends a
silent data burst to the base station informing it of
the identity of the radio and emergency status. So
that attention is not drawn to the radio, with this
option the red emergency indicator and the PTT
indicator are not illuminated while the emergency
data signal is being transmitted.
MDC Signalling - Emergency Alert Activated
by a Hidden Footswitch
Activating a hidden footswitch sends a silent
data burst to the base station informing it of the
identity of the radio and emergency status. So that
attention is not drawn to the radio, with this option
the red emergency indicator and the PTT indicator
are not illuminated while the emergency data
signal is being transmitted.
2.3 PROGRAMMING THE RADIO
FROM THE FRONT PANEL
Programming the MCX1000 radio is initiated
by pressing the “PROG” button on the radio front
panel. (See Figure 2-4) In response, the PROG
indicator will light. The next step involves pushing
the function button you wish to program i.e.,
“Zone”, “Scan” or “Singletone”. The programming
of each of these functions is described individually
on the following pages.
NOTES
1. IF THE RADIO IS EQUIPPED
WITH ENCRYPTION, ENSURE
THAT IT IS NOT IN CODED
MODE BEFORE PROCEEDING
WITH FRONT PANEL PRO-
GRAMMING.
2. While being programmed, the radio
will transmit or receive messages on
the currently selected mode.
3. Whenin the normal mode of oper-
2-10
ation, only those zones which have
mode content can be accessed.
When in the programming mode, all
of the zones can be accessed.
In the following programming procedures,
reference is made to buttons on the radio front
panel. Below is a summary of the front panel
button symbols.
ZONE UP BUTTON
>
ZONE DOWN BUTTON
SINGLETONE BUTTON
PL/DPL UP BUTTON
ENCRYPTION BUTTON
MONITOR BUTTON
V
=)
A
PLIDPL DOWN BUTTON ‘WH
Q
A
N-
SQUELCH DEFEAT BUTTON
Front Panel Button Symbols
The charts on the following pages describe
the three front panel programming procedures for
the types of programming listed below :
@ Zone Programming
Modes are grouped into Zones by following the Zone
Programming Instructions. Zones may define
geographical operating areas, or be used for
grouping special types of modes such as those
equipped for placing telephone calls. Each Zone can
have a unique 8 digit alphanumeric name. Initially
the Zone names are “ZONE A”, “ZONE B” etc.
® Scan Programming
Within the set of Modes which have been grouped
into a Zone, specific Modes can be selected to be
scanned. This selection is made by programming
from the front panel by following the Scan
Programming Instructions.
@ Selectable Singletone Programming
@
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
ZONE PROGRAMMING INSTRUCTIONS
(FOR PROGRAMMING FROM THE RADIO FRONT PANEL)
INSTRUCTION RADIO’ S RESPONSE
Step 2 Press the Zone Up or Zone Down ”PROGZONE” appears momentarily on
button. the display followed by the zone name
(appears flashing).
The name of the zone to be
programmed appears flashing in the
display. A tone is heard each time the
zone is changed.
Step 3 ’ | Use the Zone Up or Zone Down
button to access the zone you wish
to program.
The mode appears flashing in the display
if not currently in the zone; the mode will
appear steady (not flashing) if currently
Step 4 Rotate the Mode Selector switch to
select the mode to be programmed
into the zone.
Step 5 To add a mode which is currently not | Mode name changes from flashing to
in the zone (i.e. the mode display is steady and is added to the zone.
flashing), press either the Zone Up or
the Zone Down button once.
To remove a mode which is currently | Mode name changes from steady to
in the zone (i.e. the mode display is flashing and is removed from the zone.
steady), press either the Zone Up or
Zone Down button once.
NOTE: Pushing the Scan or Priority
button will add the mode to the Zone
and Scan list simultaneously.
Step 6 Rotate the Mode Selector to select
another mode to be added or
removed from the zone and repeat
Steps 5 and 6 until the zone has
been programmed.
Step 7 Once programming of the zone is PROG indicator will go off. The zone
complete, press PROG button to exit | name will appear on the display for 3
from programming. seconds followed by the last selected
mode name.
Step 8 Repeat Steps 1 through 7 to program
additional zones if required.
NOTE:
in the zone.
If all modes are removed from a zone, that particular zone cannot be selected with the Zone Up or
Zone Down buttons except when programming the radio.
2-11
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
2-12
Step 1
Step 2
Step 3
Step 4
Step 5
SCAN PROGRAMMING INSTRUCTIONS
(FOR PROGRAMMING FROM THE FRONT PANEL)
INSTRUCTION RADIO’S RESPONSE
Turn the scanner off by pressing the | Scan indicator turns off.
SCAN button.
Use the Zone Up or Zone Down The name of the zone whose scan list
button to access the zone whose you wish to program appears in the
scan you wish to program. display for 3 seconds followed by the
currently selected mode.
Press the PROG button followed
immediately by the SCAN button.
“PROGSCAN” appears momentarily on
the display followed by the zone name.
The zone name appears for 1 second
followed by the name of the last
selected mode in the zone.
The Scan indicator will light if this mode
is in the scan list; the Scan indicator will
not light if this mode is not in the scan
list.
Rotate the Mode Selector switch to
select the mode which you plan to
add or remove from the scanning
sequence.
NOTE: For radios with MBB424 (Add 2
Level Priority) - if the mode is the first
level priority mode, the Priority indicator
will flash; if the mode is the second level
priority mode, the Priority indicator will
light continuously.
The SCAN button is used to toggle
the selected mode in or out of the
scan list as indicated by the Scan
indicator.
Scan indicator lights and the mode is
added to scan list
If Scan indicator is off, press the
SCAN button.
Scan indicator turns off and the mode is
removed from scan list.
lf Scan indicator is on, press SCAN
button.
NOTE: If the radio is equipped with
MBB424 “Add 2 Level Priority“, the
PRI button can be used to add a
mode to the scan list as well as
designate its priority status.
CONTINUED ON NEXT PAGE
e
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
SCAN PROGRAMMING INSTRUCTIONS
(FOR PROGRAMMING FROM THE FRONT PANEL)
ae eal INSTRUCTION RADIO’S RESPONSE
Step 5. lf Scan indicator is off, press PRI Scan indicator on and Priority indicator
Continued button once. flashing, mode entered in scan list and
designated Priority 2.
Scan indicator and Priority indicator on,
mode entered in scan list and
designated Priority 1.
lf Scan indicator is off, press PRI
button twice.
NOTE: The PRI button, when
pressed, sequences the priority
status of the selected mode through
three states, Priority 1, Priority 2, and
non-priority. There can only be one
Priority 1 and one Priority 2 mode
assigned in a zone.
If priority (first and second) is already
assigned, pressing the PRI button will
have no effect (but a tone will be heard).
You must first remove the priority status
on the other programmed mode before
priority can be reassigned to a new
mode.
If only one level of priority has been
assigned (first or second) to another
mode, pressing the PRI button will
alternate between two states; non-
priority and the unassigned priority level
only.
Repeat Steps 4 and 5 until the scan
list for the selected zone is complete.
If more Scan
Program
changes are
required:
Use the Zone Up or Zone Down.
button to select another Zone and
repeat Steps 4. and 5. until the Scan
list for the selected Zone is complete.
If Scan
Programming is
required in other
zones:
Program indicator goes off; radio and
display reverts back to last mode used.
Once the scan list for the zone is
complete, press the PROG button to
exit from programming.
To complete:
NOTE: Scan lists and priority
assignments can be programmed
while programming a zone by
performing Step 5 of these
instructions immediately aiter Step 5
in “Programming a Zone“
2-13
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
2-14
SELECTABLE SINGLETONE PROGRAMMING INSTRUCTIONS
(FOR PROGRAMMING FROM THE FRONT PANEL
)
INSTRUCTION RADIO’S RESPONSE
Press the SELECTABLE ”PROGTONE” appears momentarily in
SINGLETONE button. (See Figure the display followed by the name of the
2-15) last singletone selected. If no
singletone has been previously selected,
the name of the first selectable
singletone programmed into your radio
will appear .
The singletone name will appear in the
display.
Use the Mode Selector to select the
singletone you wish to send.
Press the PROG button to exit from
programming.
Program indicator turns off. Radio and
display revert back to last mode used.
Press SELECTABLE SINGLETONE
button to send singletone.
To Operate: Singletone transmission is heard.
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
2.4 INSTALLATION
2.4.1 FRONT MOUNT RADIO SETS
1. Depending on the option ordered, front-mount
radios may be mounted using either standard or
optional trays alone or in conjunction with a floor
mounting adaptor (refer to Figure 2-7).
2. If a tray is used alone, mount it securely by
means of the four (10 X 3/4“) screws provided.
3. If a tray is used with a mounting adaptor, first
mount the adaptor, using the four (10 X 1-1/2“)
screws provided. After mounting the adaptor,
adjust its angle as desired and then mount the tray
on the floor mounting adaptor, using the studs to
align the fixture; four mounting screws are
provided.
4. Install the radio into the mounting tray
(depending on the type of tray ordered) using either
the two mounting screws or the latches.
2.4.2 REMOTE-MOUNT RADIO SETS
1. Mount the control head in the desired spot, using
the mounting bracket provided.
SLOTS (4)
OPTIONAL LATCHES (2)
AND RIGHT HAND LOCK
(A) STANDARD MOUNTING TRAY FOR
FRONT MOUNT MOBILE RADIO SETS
(B) MOUNTING TRAY FOR FRONT MOUNT
MOBILE RADIO SETS PROVIDED WITH
OPTIONAL LATCHES AND RIGHT HAND
LOCK
STANDARD MOUNTING TRAY
MOUNTED ON A FLOOR MOUNT
ADAPTER. THIS ADAPTER IS USED FOR
FLOOR MOUNT MOBILE RADIO SETS
LOUDSPEAKER CAN BE MOUNTED INTO
THE ADAPTER AS SHOWN
LOUDSPEAKER MOUNTED
INTO ADAPTER
2. Install the mounting tray at the desired location,
using the four (10 X 3/4“) screws provided.
3. Install the remote transceiver into the mounting
tray, using either the mounting screws or latches
(depending on the tray ordered).
4. Route the cable assembly from the control head to
the transceiver; insert the cable connector into its
mate on the transceiver and secure the connector
using the screws provided.
2.4.3 ALL MODELS
1. Install the loudspeaker in the desired location
and connect it to the transceiver.
2. For mobile units, mount the microphone hangup
clip at the selected position. (See Note following.)
For base station applications, the base microphone
should be directly connected to the front of the unit.
3. Mount the antenna and route the coaxial cable to
the radio set.
4. Install the de power cable in accordance with the
instructions provided in Figures 2-8 through 2-12.
MBB113 is the “Ignition Control of PTT” option.
SCREW FOR ADJUSTING
SLANT ANGLE OF FLOOR
MOUNT ADAPTER. (2 SETS
OF SCREWS PROVIDED
SECURITY SCREWS AND
NON-SECURITY SCREWS -
EITHER SET OF SCREWS
MAY BE USED IN
INSTALLATION)
Figure 2-7. Mounting Trays and Floor Mounting Adapter
2-15
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
SPEAKER RED F350
i ——#)"|_»——® TO BATTERY
“+" TERMINAL
ACCESSORIES
\
TO VEHICLE CHASSIS
fe’ we |
th
Tell
ANTENNA
CONNECTOR = > TOBATTERY “+” TERMINAL
a aa ® OR TO ACCESSORY SIDE
OF IGNITION SWITCH
Figure 2-8 Power Lead Connections for Mobile Radios
(Without the MBB113 Option-Ignition Switch Transmitter Control)
SPEAKER
i TO BATTERY
ACCESSORIES “+” TERMINAL
TO VEHICLE CHASSIS
rele pe =
peo
ANTENNA
CONNECTOR
TO ACCESSORY SIDE
OF IGNITION SWITCH
Figure 2-9 Power Lead Connections for Mobile Radios
with the MBB113 Option-Ignition Switch Transmitter Control
2-16
y
SPEAKER
ACCESSORIES
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
TO BATTERY “+” TERMINAL
—® TO BATTERY “+” TERMINAL
OR OTHER SOURCE OF
POSITIVE BATTERY VOLTAGE
——— ® OR TO ACCESSORY SIDE
OF IGNITION SWITCH
TO VEHICLE CHASSIS
TRANSCEIVER PACKAGE
ANTENNA
STANDARD
CONNECTOR
MICROPHONE
LOCATION
SPEAKER
ACCESSORIES
CONTROL
HEAD
eee TO BATTERY *+* TERMINAL
epeen TO BATTERY “+” TERMINAL
OR OTHER SOURCE OF
POSITIVE BATTERY VOLTAGE
TO VEHICI F CHASSIS
F352
saheshios TO ACCESSORY SIDE
adel IGNITION SWITCH
| We leo i
TRANSCEIVER PACKAGE
ANTENNA
CONNECTOR
LOCATION
STANDARD
MICROPHONE
CONTROL
HEAD
Figure 2-11 Power Lead Connections for Remote Mount Radios
with the MBB113 Option-Ignition Switch Transmitter Control
2-17
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
SPEAKER RED (HEAVY) F350
L TO POWER SUPPLY
| *+" OUTPUT TERMINAL
ACCESSORIES
TO POWER SUPPLY
“—" OUTPUT TERMINAL
BASE STATION
TRANSCEIVER PACKAGE
ANTENNA
CONNECTOR
na}
|
©
Figure 2-12 Power Lead Connections for Base Station Applications
NOTE: VKN4139 Main radio cable 8 ft with
connector (control head to
If the hangup clip is not mounted on radio)
a grounded metal surface, connect
the supplied wire from the hangup VKN4140 Main radio cable 17 ft with
clip to a car chassis ground. The connector ©
hangup clip must be electrically ;
grounded to operate the OFF- MBTKN8158 Mobile 10 ft power cable and
HOOK function of the micro- fuses
phone.
VKN4151 Mobile 18 ft power cable and
fuses
2.5 LIST OF ACCESSORIES
MBTKN8199 Base 10 ft power cable and
MODEL # DESCRIPTION fuses
VMN1016 Standard palm microphone MBTKN8160 Ignition switch transmitter
control-Front mount
VMN1017 DTMF microphone
MBTKN8197 Ignition switch transmitter
VMN1018 Base station desk top control-Remote mount
microphone
MBTRN4675 Standard mounting tray
MBTSN6032 Standard 5 Watt speaker
with 17 ft cable MBTRN4679 Mounting tray with right
hand lock
MBTRN4898 Mounting tray with built-in
speaker VLN4777 Hinged mounting bracket
VPN1013 Power Supply, 120 V AC V1022 Spare Control Head
2-18
y
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
MBTRN4671 Tuning Tool
MBTRN4778 Tuning Probe Adaptor
Field Retrofit Kits
Field retrofit kits are available from Motorola
that allow digital versions of the MCX1000 Radio to
be converted to voice encryption operation. For
more information on the available encryption
options, see Section 2.7 in this manual.
2.6 DESCRIPTION OF RADIO
OPTIONS
2.6.1 GENERAL OPTIONS
MBB978 Omit User Programming From the
Radio Front Panel
This option makes programming of the radio
by its user from the radio front panel impossible.
The user would be unable to change the modes
included in a zone and the modes that are scanned.
Should this option be ordered, a field programmer
would be required to reprogram the radio. If
selectable singletone is included in the radio, the
program button can be used only to select
singletone.
MBB460 2 PPM Stability
The MCX1000 comes standard with 5 ppm
stability. This option changes radio hardware to
improve the frequency accuracy of the radio, an
option especially important when the radio is used
as part of a data transmission system.
MBB462 Fast-Lok Synthesizer
The lock time of the standard synthesizer is 110
milliseconds. With this option, a new fast-lok
synthesizer reduces lock time to less than 3
milliseconds. The faster lock speed is required for
units with the Priority Scan option -MBB424 (and is
included as part of MBB424) and is strongly
recommended for systems where many channels are
being scanned. It is also recommended for large
mobile data systems where vehicles are polled and
rapid receiver and transmitter turn on response is
required.
MBB310 Lower Range VHF Option
The VHF MCX1000 Radio is available for
operation in Range I (136-162 MHz) or Range II
(146-174 MHz) bands. When all transmit and
receive frequencies are in the same sub-band
overlap area (146-162 MHz), Range II (146-174
MHz) boards will be supplied as standard.
This option (MBB310) should be used when all
present frequencies are in the overlap area but
future user applications require Range I (136-162
MHz) capability.
MBB75 Omit Time-Out-Timer
Deletes the 60 second timer that is standard on
the radio.
MBB287 Non-Standard Time-Out-Timer
This option alters the time period from the
standard 60 seconds to one of the following choices:
30, 90, 120, 150, 180, or 210 seconds.
MBB289 Omit Alert Tone
This option removes all the alert tones that are
heard when zones are selected and when the mode
selector is rotated past the last mode. Alert tones
will still be heard while programming from the
front panel.
MBB366 Disable Lighting
This option adds an OFF position to the DIM
button function. The OFF position will turn off all
lighting on the front panel of the control head
including the backlighting of all buttons. There is
no visible indication that the radio is operating
when the dimmer is in the off position.
MBB20 DTMF Microphone (See Figure 2-13)
Deletes the regular mobile microphone and
replaces it with a TOUCH-CODE encode
microphone. The DTMF microphone allows the
transmission of standard dual tone multi-frequency
2-19
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
(DTMF) signals, which are used for remote
signalling applications and mobile telephone
operations.
2.6.2 SCAN OPTIONS
MBB423 Operator Selectable Scan
This option provides the SCAN button on the
radio front panel and the ability of the radio to
perform the scan function within each of its zones.
NOTE: Upon receipt of his radio, the user will have
to select and program the modes to be scanned
within each zone from the radio front panel (see
Programming the Scan instructions). For diagram
and instructions on how to operate the scan
function, refer to section 2.2.5.
MBB424 Add 2 Level Priority
This option provides the PRIORITY button on
the radio’s front panel and the ability of the radio to
perform the priority scan function within each of its
zones. NOTE: Upon receipt of his radio, the user
will have to select and program priority to the
modes in the scan list within each zone from the
radio front panel. For diagram and instructions on
how to operate Two Level Priority Scan, refer to
section 2.2.6.
Pa
PUSHBUTTON
DTMF
MICROPHONE
MBB315 Priority to Follow Mode Selector
Switch
This feature permits the user to manually select
the desired first level priority mode by rotating the
mode selector switch to the desired mode and then
switching on the scanner.
MBB316 Omit Spontaneous Priority
Spontaneous Priority is standard on the
MCX1000 radio. With Spontaneous Priority, the
last mode transmitted on is assigned secondary
priority status for 60 seconds once the microphone is
placed on hook. This feature ensures that a delayed
continuation of a conversation will be monitored
and not missed. If another mode has previously
been programmed with secondary priority status in
the scan sequence, the radio will scan with two
secondary priority modes for 60 seconds after the
microphone is placed on hook. MBB316 “Omit
Spontaneous Priority” deletes this feature.
2.6.3 SINGLETONE SIGNALLING OPTIONS
MBB312 Singletone to Follow Mode Selector
Switch (See Figure 2-14)
A single one second encode tone is sent from the
radio when the “Singletone” pushbutton (marked
@) moTOROLAMEX !000
Figure 2-13 MCX1000 Mobile Radio with DTMF Microphone
2-20
©
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
with a musical note) on the radio front panel is
pushed. Holding the Singletone pushbutton
depressed beyond the 1 second timed interval
causes the radio to transmit the singletone for as
long as the button is depressed. The Singletone
frequency is determined by the selected mode (the
frequency having been previously programmed for
the particular mode).
MBB313 Selectable Singletone (See Figure 2-15)
Up to 10 (56 mode, 8 zone models) or 32 (128
mode, 24 zone models) encode tones may be selected
for transmission on the MCX1000. A singletone is
selected through a sequence of button pushes
involving the Program Button (see Programming
Selectable Singletone). By depressing the
Singletone button (marked with a musical note) on
the radio front panel, the selected tone is
transmitted. The standard transmission time is one
second. Holding the Singletone button depressed
SINGLETONE
BUTTON
Figure 2-14 MCX1000 Radio with Singletone
to Follow Mode Selector Switch
SINGLETONE
1 BUTTON
SINGLE TONE
2 BUTTON
Figure 2-16 MCX1000 Radio
with Dual Singletone
beyond the 1 second timed interval causes the radio
to transmit the singletone for as long as the button
is depressed.
MBB487 Dual Singletone (See Figure 2-16)
Two independent encode tones can be sent from
the radio by means of the “1” or “2” buttons on the
radio front panel. The standard transmission time
is one second. Holding a dual singletone button
depressed beyond the 1 second timed interval
causes the radio to transmit the singletone for as
long as the button is depressed.
MBB801 Singletone With Non-Standard
Duration
This option alters the standard singletone time
duration from 1 second (MBB312, MBB313, or
MBB487) to one of the following choices: 0.25, 0.5,
1.5, 2.0, 2.5, 3.0, 3.5, 4.0, or 5.0 seconds.
SELECTABLE
SINGLETONE
BUTTON
Figure 2-15 MCX1000 Radio with
Selectable Singletone
Pe DPRUP
BUTTON [/ i
Prprenceanene 1000 fe
PL DPL DOWN
BUTTON
Figure 2-17MCX1000 Radio
with Selectable PL / DPL
2-21
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
2.6.4 PRIVATE-LINE/ DIGITAL PRIVATE
LINE OPTIONS
MBB463 Selectable PL/DPL (See Figure 2-17)
(PL/DPL button positions change with encrypted
radios)
Changing the radio PL/DPL code involves the
use of the shaded arrow buttons on the front panel
of the radio. Use the up or down buttons to call up
the desired code. (Codes will be shown on the radio
display). When you reach the code you desire, wait
3 seconds for the radio display to revert back to its
mode name (this wait may be eliminated by turning
the mode selector switch 1 click in either direction).
The radio now carries the PL/DPL code you have
just assigned. NOTE: This option may be desired if
the radio is used on a shared community repeater.
MBB334 Transmit Inhibit on Busy Mode
This option prevents the radio transmitter from
keying on an active mode when the wrong PL code
is present on the carrier. When the mode is busy
with the proper PL code, the Busy Indicator will
light steadily. When the mode is busy with the
wrong PL code, the Busy Indicator will flash, and if
the transmitter PTT is operated, a tone will be
heard indicating that the transmitter is inhibited at
that time.
The monitor button is disabled with this option so
that the receiver audio can be heard only when the
proper PL code is present. The squelch button will
produce an audible tone when pressed so that the
volume level may be adjusted.
This option eliminates interference possible when
radio users share the same repeater.
2.6.5 MDC SIGNALLING OPTIONS
MBB708 MDC-1200 Signalling- Unit
Identification
Each time the push-to-talk button on the
microphone is depressed, a specific pre-programmed
burst of data is transmitted to identify the radio
unit. During a short period of time, a tone can be
heard from the speaker. When the tone ends, the
voice message can begin.
2-22
MBB452 MDC600 Signalling- Unit
Identification
Each time the push-to-talk button on the
microphone is depressed, a specific pre-programmed
burst of data is transmitted to identify the radio
unit. During a short period of time, a tone can be
heard from the speaker. When the tone ends, the
voice message can begin.
MBB873 MDC Signalling- Emergency Alert
Activated by Pushbutton on Control Head (See
Figure 2-18)
Pressing the unlabeled “Emergency”
pushbutton on the radio front panel sends a unique
silent data transmission to the base station
informing it of the radio identity and emergency
status. Either MDC600 or MDC1200 signalling is
used, depending on the MDC Unit Identification
option ordered with the radio.
MDC EMERGENCY
ALERT BUTTON
Figure 2-18 MCX1000 Radio with MDC
Emergency Alert Activated by Pushbutton
on Control Head
MBB688 MDC Signalling-Emergency Alert
Activated by Hidden Pushbutton
Activating a hidden pushbutton sends a unique
silent data transmission to the base station
informing it of the radio identity and emergency
status. Either MDC600 or MDC1200 signalling is
used, depending on the MDC Unit Identification
option ordered with the radio.
a.
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
MBB470 MDC Signalling-Emergency Alert
Activated by Hidden Footswitch
Activating a hidden footswitch sends a unique
silent data transmission to the base station
informing it of the radio identity and emergency
status. Either MDC600 or MDC1200 signalling is
used, depending on the MDC Unit Identification
option ordered with the radio.
2.6.6 MANUAL OPTIONS
MBB292 French Instruction Manual (Canadian
Option Only)
A French Instruction Manual is substituted for
the English Instruction Manual that is normally
shipped with every radio.
MBB206 Service Manual
This option adds a service manual (1 per every
10 radios ordered).
2.6.7 INSTALLATION OPTIONS
MBB665 Base Station Operation
This option converts the standard front mount
mobile package model into a 12 Volt DC base
station by omitting all the mobile accessories and
adding a base station power supply, base station
power cables and fuses, base station tray with built-
in speaker, and base microphone.
MBB32 Omit Base Station Power Supply and
Cables
The option deletes the base station power
supply and cables that are part of MBB665.
V 1022 Spare Control Head
This accessory consists of a kit composed of a
universal remote mount control head and all
possible buttons.
MBB70 Omit Antenna, Cable and Connectors
This option removes the antenna, cable and
connectors from the MCX1000 radio package.
MBB652 Broadband Antenna
This option replaces the standard unity gain 1/4
wave antenna with a 1/4 wave broadband antenna.
A broadband antenna is recommended if the range
of transmit frequencies is beyond the span of 139
MHz to 153 MHz, below 146 MHz to above 161 MHz,
or below 155 MHz to above 172 MHz.
MBB297 Mounting Tray With Right Hand Lock
This option replaces the standard mounting
tray with a mounting tray that has 2 latches plus a
right hand lock.
MBB475 Hinged Mounting Bracket
The hinged mounting bracket is recommended
for floor-mount mobile radio sets. Two pairs of
screws are provided with the hinged mounting
bracket, namely security screws and non-security
screws. Either set of screws may be used in the
installation.
MBB113 Ignition Switch Transmitter Control
This option permits the transmitter to be
controlled through the vehicle ignition switch,
preventing unauthorized transmission in
unattended vehicles.
MBB335 Remote Mounting Kit
This option shortens the length of the speaker
and control head cables on remote mount models
from 17 ft (5.2m) to 8 ft (2.4m).
MBB71 Omit Mobile Microphone
This option removes the standard palm
microphone from the MCX1000 radio package.
MBB87 Omit Speaker
This option removes the mobile speaker and its
cable from the MCX1000 radio package.
MBBI161 Omit Battery Cable
This option removes the power cable from the
remote mount MCX1000 radio package.
2-23
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
MBB65 Omit Mounting Tray and
Installation Kit
This option removes the mounting tray and
associated hardware from the MCX1000 radio
package.
MBB90 Omit All Accessories
This option removes the antenna, cable and
connectors, palm microphone, speaker, power cable,
mounting tray and installation kit from the
MCX1000 Radio package.
2.70PTIONS UNIQUE TO DIGITAL
CAPABLE RADIOS (UXA
MODELS)
MBB236 56 Mode Operation
This option changes the maximum number of
operating modes in the radio from 128 to 56 and the
number of zones from 24 to 8.
MBB981 Railroad Requirement
This option replaces the dual front end receiver
with a single front end receiver (4MHz) and allows
two independent encode tones to be sent from the
radio by means of the “1” and “2” buttons on the
radio front panel.
Factory Installed Encryption
This option adds hardware (extended chassis
and boards) and a specific voice encryption module
to the radio depending on the type of encryption
ordered.
Dual Code Select
This option allows the user to select between
two encryption codes for transmission. The dual
2-24
code select option is available only with a specific
type of voice encryption option.
Proper Code Detect
This option causes the radio to mute if the
receiving signal has the wrong encryption code.
Spare Encryption Module
Ordering this option adds a spare encryption
module to the package that ships with your radio.
NOTE: LIMIT OF 1 KIT FOR EVERY RADIO
ORDERED.
Field Installed Encryption
Ordering this option provides the hardware
(extended chassis and boards) and a specific voice
encryption module to the radio depending on the
type of encryption ordered.
Security Housing Mounting Tray-Front Mount
This option provides a lockable front mounting
tray containing an anti-tamper switch. If any
attempt is made to tamper with the radio, the
electronic key is automatically erased.
Security Housing Mounting Tray-Trunk Mount
This option provides a lockable mounting tray
containing an anti-tamper switch. If any attempt is
made to tamper with the radio, the electronic key is
automatically erased.
2.80PTION COMPATIBILITY
CHART
Before ordering radio options, refer to Figure 2-
19 to determine option compatibility. Also, Figure
2-19 indicates the options that must be ordered
together.
©
SECTION 2. INSTALLATION AND OPERATION OF THE RADIO
SERS SR RGR SR RGR RRR eco
JUUDOCED ORE ROR eae eC ee
MBD44URATHOOAK
MBT44URA7KOOAK
MBB310
136-162 MHz
MBB75
OMIT TIME-OUT-TIMER
MBB287
NON-STD, TIME-OUT-TIMER
MBB315 PRIORITY TO FOLLOW
MODE SELECTOR SWITCH
MBB316
OMIT SPONTANEOUS PRIORITY
MBB20
DTMF MICROPHONE
MBB312 SINGLETONE TO FOLLOW
MODE SELECTOR SWITCH
MBB801 SINGLETONE WITH
NON-STD. DURATION
MBB463
SELECTABLE PUDPL
MBB708
MDC-1200 UNIT 1D & EMERGENCY
OMIT ANTENNA, CABLE &
CONNECTORS
MBB652
BROADBAND ANTENNA
MBB71
OMIT MOBILE MICROPHONE
MBB87
OMIT SPEAKER
MBB161
OMIT BATTERY CABLE
MBB65 OMT MOUNTING TRAY &
INSTALLATION KIT
MBB80
OMIT ALL ACCESSORIES
MBB297 MOUNTING TRAY WITH
RIGHT HAND LOCK
MBB475
HINGED MOUNTING BRACKET
MBB113 IGNITION SWITCH
TRANSMITTER CONTROL
MBB335
REMOTE MOUNTING KIT
MBB665
BASE STATION OPERATION
MBB32
OMIT POWER SUPPLY & CABLES
MBB206
SERVICE MANUAL
MBB202
FRENCH OWNER'S MANUAL
LUYVHOD ALIMELLVdINOOD NOLLdO 000TXOW
€
L
Pr - Fy
Xe
v7raan
GONV €ZVGGW 3YINDSY
ezreaan
S3YuINDO3AY P7VEEN
NOILdO
28vaan YO
CLeGaw ‘ZLESGW Y3HLI3
ZSVEEW 40 SOLEEW
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Figure 2-19
Option Compatibility Chart
2-25/2-26
(AA) MOTOROLA LIMITED
Communications Division
3.1 RADIO DESCRIPTION
3.1.1 GENERAL
The MCX1000 VHF Radio operates in the range
of 136-162 or 146-174 MHz and has transmit
capabilities of 30/40 Watts rf output. It is available
in a dash mount, remote mount or base station
configuration. The MCX1000 Radio receives all
control signals from its own microcomputer board.
The radio chassis is constructed of rugged cast
metal with separate top and bottom covers.The back
of the chassis contains the connectors for external
power, antenna, external option connections, and a
heat sink for power transistor cooling.
The radio control head contains all controls and
indicators as well as the microphone connector.
Compartments inside the chassis isolate the
PA, receiver front end, frequency synthesizer,
microcomputer / analog interface, and main board
from each other. Additional shields are mounted
over sensitive components on the main board, and
compartment shields are used over the synthesizer
and power amplifier compartments.
The top and bottom cover are easily removed.
Most of the internal boards are connected to other
radio circuitry with plug-in connectors, and may
easily be removed from the radio for service or
replacement by removing appropriate screws and
pulling from the radio.
The chassis is designed so that most boards are
readily accessible by removing the top cover, bottom
cover, and PA shield. The main assemblies for the
radio are listed below.
® power amplifier interconnect board
@ 30 watt heat sink
SECTION 3.
MAINTENANCE
AND ALIGNMENT
® synthesizer board
® synthesizer interconnect board
@ VCO hybrid assembly
® main board
@ front panel interconnect board
® dual front end
® harmonic filter hybrid
® low level amplifier hybrid
© 10 watt power amplifier hybrid
@ 30 watt power amplifier hybrid
® analog interface board
® remote interface board (remote mount models)
® command board (2K or 8K)
® display board
® dash or remote control head microcomputer board
@ power interconnect board
See Figures 3-1 and 3-2 for the location of the
board assemblies listed above. For boards not
shown, refer to subsections 3.1.2 through 3.1.13 for
board locations.
3.1.2 POWER AMPLIFIER (PA) INTER-
CONNECT BOARD
The PA interconnect board provides physical
mounting and electrical interconnection of the :
© low level amplifier hybrid
@ 10 watt power amplifier hybrid
® harmonic filter / antenna switch hybrid
The PA interconnect board is located on the bottom
of the chassis, adjacent to the rear wall. All
transmitter circuits except push-to-talk (PTT) logic,
transmit audio/instantaneous deviation control
(IDC), and transmit power and level control are
located on these hybrids.This board cannot be
removed. Replacement of components on this
board, if necessary, should be done from the exposed
side of the board.
3-1
SECTION 3. MAINTENANCE AND ALIGNMENT
DISPLAY BOARD :
(INSIDE CONTROL HEAD) aN ARIS
CONTROL HEAD
MICROCOMPUTER a
BOARD (INSIDE eae
CONTROL HEAD)
cersugprte
t
{ i Ne Oe er ergs bow |
FRONT PANEL . :
INTERCONNECT
BOARD (EDGE VIEW)
SYNTHESIZER BOARD
(WITH BOARD
REMOVAL HANDLE)
POWER AMPLIFIER
INTERCONNECT BOARD
LOW LEVEL
AMPLIFIER
10 WATT POWER
AMPLIFIER
Sp apeeags,
®
AQHROLOL
MICROPHONE
JACK
VCO ASSEMBLY
WIDESPACE DUAL
FRONT END
HARMONIC FILTER
ANTENNA
CONNECTOR
30 WATT POWER
AMPLIFIER
Figure 3-1 MCX1000 Radio Bottom View with Cover Removed
3.1.3 30 WATT HEAT SINK
The heat sink is attached to the rear of the radio
set chassis, and houses the 30 watt power amplifier
hybrid.
3.1.4 30 WATT POWER AMPLIFIER
The power amplifier is mounted inside the
external heat sink and is accessed by removing the
bottom cover of the heat sink.
3.1.5 FREQUENCY SYNTHESIZER
The frequency synthesizer consists of two
assemblies : the synthesizer board and the VCO.
3-2
The two assemblies are located side by side on the
bottom of the radio set and are accessed by
removing the synthesizer cover. The synthesizer
board contains :
© a reference oscillator
® frequency selection logic circuits
@ miscellaneous buffering, filtering, and control
circuitry.
The VCO assembly contains :
@ the voltage controlled oscillator circuit,
® buffer,
® range shift circuitry,
2 @ pai
=) gaye e SQUELTH
%, ee *
sveeeey
SECTION 3. MAINTENANCE AND ALIGNMENT
ANALOG INTERFACE
BOARD
4 COMMAND BOARD POSITION
/_—— _ (HAS BEEN REMOVED TO SHOW
ANALOG INTERFACE BOARD)
MAIN BOARD
2 POWER INTERCONNECT
. + BOARD (VISIBLE WHEN
MAIN BOARD IS REMOVED)
HEATSINK
f
SPEAKER JACK
eee * 4 ‘
. Be f
, } : : Pa
\ ; ; cy : ae j
ac i a : me if
’ 4 bo REMO
$ te > F —
PT
y : i i a ee; j
\ ; on
d
ACCESSORY 2 JACK 12 VOLT POWER JACK
® varactor diodes, which produce frequency
modulation of the VCO.
3.1.66 MAIN BOARD
The main board is located on the top of the radio
set in the rear. The main board contains all
receiver circuits, voltage regulation circuits, and
the following transmitter circuits :
@ push-to-talk logic
®@ transmit audio / IDC
@ transmit power and level control
Figure 3-2, MCX1000 Radio Top View with Cover Removed
3.1.7 FRONT PANEL INTERCONNECT
BOARD
The front panel interconnect board provides for
the connections between the front panel, power
interconnect board, synthesizer board, main board,
analog interface board and command board. The
front panel interconnect board is located in a slot at
the front of the radio chassis and is accessible by
removing the radio control head (in dash mount
models) or removing the radio remote transceiver
front cover (in remote mount models).
3-3
SECTION 3. MAINTENANCE AND ALIGNMENT
3.1.8 POWER INTERCONNECT BOARD
The power interconnect board provides power
distribution for the radio. This board is located
below the main board and to the rear of the front
panel interconnect board. The power interconnect
board cannot be removed. Replacement of
components on this board, if necessary, should be
done from the exposed side of the board,
3.1.9 DUAL FRONT END
The front end contains the rf amplifier, mixer,
and tuned filters which provide selectivity. The
front end is attached to the main board. A dual
front end board is standard in each radio model.
3.1.10 COMMAND BOARD
The command board is located on the top of the
radio set at the front, in the space not taken by the
main board. The command board is the main
controller for the radio. Its memory contains the
personality data for the radio and it controls the
serial bus, synthesizer and volume control IC. It
also controls the microcomputer on the analog
interface board
3.1.11 REMOTE INTERFACE BOARD
The remote interface board allows the radio set
to be mounted in a remote location such as under
the seat or in the trunk, and be controlled from the
vehicle dashboard.This board is located at the front
of the radio chassis and is accessible by removing
the radio remote transceiver front cover (in remote
mount models).
3.1.12 ANALOG INTERFACE BOARD
The analog interface board is located
underneath the command board. It is accessible
after removal of the command board from the radio.
A microcomputer on the analog interface board
interfaces the main microcomputer (located on the
command board) to the radio circuitry. The analog
interface board also provides transmit PL and
singletone, audio gating and filtering.
3-4
3.1.13 DISPLAY BOARD
The display board is mounted vertically in the
control head and is located directly on the front
panel. As its name implies, it holds all displays and
display drivers. Also mounted on this board are all
front panel pushbuttons and indicator LED’s.
3.1.14 DASH/REMOTE CONTROL HEAD
MICROCOMPUTER BOARD
Depending upon model, either a dash control
head microcomputer board or a remote control head
microcomputer board will be present in each radio.
This board is mounted vertically in the control head
directly behind the display board.The control head
microcomputer controls the display board and
interfaces to the radio. It scans the keyboard and
sends information from the keyboard to the radio.
As well, it receives data from the radio and places
this information in the display. All front panel
LED’s are controlled from this board.
3.2 RECOMMENDED TEST
EQUIPMENT FOR MAIN-
TENANCE AND ALIGNMENT
Refer to Figure 3-3 for a listing of test
equipment needed to perform maintenance and
alignment to the MCX1000 Radio Set.
p NOTE
All test equipment, with the
exception of the DPL test set, tuning
tool kit, tuning probe adapter, and
dc power supply may be replaced by
the Motorola R2001 System
Analyzer.
Figure 3-4 contains a listing of additional
equipment used to verify radio specifications. Note
that the equipment listed in Figure 3-4 is not
required for maintenance and alignment.
3.3 FIELD PROGRAMMING
The MCX1000 Radio uses an EEPROM
(Electrically Erasable Programmable Read Only
Memory) to store information on modes, zones,
signalling codes and tones, signalling durations and
Time-Out-Timer durations.
<
SECTION 3. MAINTENANCE AND ALIGNMENT
3.3.1 SERVICE PROGRAMMING WITHA
. RADIO SERVICE PROGRAMMER
DESCRIPTION PART NUMBER
The MCX1000’s EEPROM can _ be
reprogrammed in the field without ever removing Computer IBM PC, XT, AT or PC
the EEPROM from the radio. To program, an IBM Convertible with min.
PC, XT, AT or PC Convertible computer is 512K RAM, IBM DOS
connected through a Radio Interface Box (“RIB”) to 3.0 or higher, and an
the microphone connector of the radio. Once the Asynchronous Com-
computer is connected to the radio, the prompts munications Adapter
provided by the software guide the operator through
all the steps required for programming. (Radio sae Bas) 018035374
3.3.2 REQUIRED EQUIPMENT Compute anionten
RIB to:
The items in the table at right are required for @ IBMPC, XTorPC
reprogramming an MCX1000 Radio. All items Convertible 3080369B71
except the computer are available through Motorola e IBM AT 3080369B72
National Parts.
Radio Cable from RIB 3000056M01
3.3.3 FIELD PROGRAMMING to MCX1000
PERNESTIONS Software 5 1/4”-RVN4011
The diagram below shows the necessary PCE ee abe Be eee ee
connections to the computer, radio interface box and AC Power Adapter 0180357A57
the MCX1000 Radio for radio programming.
TO ASYNCHRONOUS
COMMUNICATIONS
MONITOR ADAPTER PORT CABLE
(#1 OR #2) 3080369B71
OR 3080369B72 AC POWER
ADAPTER
| 0180357A57
TO RADIO
MIC
CONNECTOR
TO 110 V. AC
| “~RADIO INTERFACE
RADIO BOX (RIB)
SOFTWARE aaa
ABLE : 0180353A74
PROGRAMMING OnE
DISK RVN4011
OR |
RVN4012
MCX1000 RADIO
y Field Programming Connections Diagram
3-5
SECTION 3. MAINTENANCE AND ALIGNMENT
3.3.4 ELECTRONIC ENCRYPTION KEY
TRANSFER
Instructions detailing the method of inserting
an encryption key into a digital capable MCX1000
Radio with a Securenet voice encryption option are
provided in separate manuals associated with the
particular Key Code Inserter ordered for the
MCX1000 Radio.
Information on the Securenet voice encryption
circuitry and associated voice encryption options is
provided in a manual supplement entitled
Securenet Digital Voice Encryption MCX1000 Two-
Way FM Radio (Motorola part # 68P02902A19).
3.4 SAFE HANDLING OF CMOS
INTEGRATED CIRCUITS /
REMOVAL AND REPLACE-
MENT OF CHIP COMPONENTS
The following precautions should be observed
when handling, removing or replacing integrated
circuits and chip components.
CAUTION 1.
Many of the integrated circuit devices
used in communications equipment are
of the CMOS (Complementary Metal
Oxide Semiconductor) type. Because of
their high open circuit impedance,
CMOS IC’s are vulnerable to damage
from static charges. Motorola
Publication Number 68P81106E84,
“SAFE HANDLING OF CMOS
INTEGRATED CIRCUIT DEVICES”
contains information pertinent to the
safe handling of these devices. To
obtain this publication, fill in and mail
the self mailer titled Available
Background Reference Publications at
the back of this manual .
3-6
CAUTION 2.
DO NOT remove or insert any circuit
boards or integrated circuits while
power is applied.
CAUTION 3.
Connect a wrist-type grounding strap to
the chassis before opening the chassis.
CAUTION 4.
Special techniques are used when
installing or removing chip type
components. If these techniques are not
implemented correctly, serious damage
may occur to the circuit and / or the
performance of the circuitry associated
with the chip components may be
degraded. Motorola Publication
Number 68P81113E77, “Removal and
Replacement of Chip Components on
Circuit Boards” contains detailed
information on this subject. To obtain
this publication, fill in and mail the self
mailer titled Available Background
Reference Publications at the back of
this manual.
SECTION 3. MAINTENANCE AND ALIGNMENT
General Type
AC-DC VOM
DC Multimeter
AC Voltmeter
RF Voltmeter
Tuning Probe
Adapter
Oscilloscope
RF Wattmeter
Frequency Meter
Deviation Meter
RF Signal Generator
Audio Signal
Generator
PL ToneGenerator
(for PL models only)
DPL Test Set
(for DPL models
only)
Application
DC voltage measurements,
general
DC voltage readings requiring
a high input resistance meter
Audio voltage measurements
-RF voltage measurements
Dual Front End Alignment
Waveform observation
Transmitter output power
measurement
Transmitter frequency
measurement
Transmitter modulation
deviation measurement
Receiver alignment and
troubleshooting
Audio circuit troubleshooting
Tone-coded Private-Line decoder
troubleshooting
Digital Private-Line encoder-
decoder troubleshooting
Recommended Model
Motorola T1009
Motorola R1037 or R1038
Motorola $1053
Motorola $1339
Motorola MBTRN4778
Motorola R1028 or R1029
Motorola $1350 with appropriate
element and T1013 RF Dummy
Load
Model R2001 Service Monitor
with high stability oscillator (X
suffix) option. Frequency
calibration recommended every 6
months or less.
Motorola R2001 Service Monitor
with RTC4000 Deviation Meter
and SLN6381 Audio Frequency
Synthesizer (audio synthesizer
required only for DPL radios)
Motorola R2001 Service Monitor
with attenuator
Motorola $1067
Motorola R1100
Motorola SLN6413
Minimum Specifications
Measurement range: 0-15 Vdc
Sensitivity: 20,000 ohms/ volt
Measurement range: 0-15 Vdc
Input resistance: 11 megohms
Measurement range: 0-10 Vac
Measurement range: 100 uV-3V
froml MHz-512 MHz
Inputs: 50 ohm and high imp.
Vertical sensitivity:5 mV-
10 V/division, Horizontal
time base: 0.2 usec.-.5 sec/ div.
Measurement range:
0-250 Watts
Measurement range:
134-174 MHz
Frequency resolution: 10 Hz
Measurement range:0-10 kHz
deviation
Frequency range: 134-174 MHz
Frequency range:134-174 MHz
Output Level:0.1uV-100,000uV
Must be capable of at least
+3 kHz deviation when
modulated by 1 kHz tone
Frequency range: 20 Hz-20kHz
Output level: 50 mV-1 V
Frequency range: 10 Hz-9999Hz
Output level: 0-3 V rms
Sheet 1
Figure 3-3 Recommended Test Equipment for MCX1000 Radio Servicing (Sheet 1)
3-7
SECTION 3. MAINTENANCE AND ALIGNMENT
3-8
General Type
Speaker/Load
Tuning Tool Kit
DC Power Supply
| Front Panel
Extender Cables
Metric Nutdriver
Kit
Application
Receiver alignment and
measurement
Receiver and transmitter
alignment
DC power for shop service
Troubleshooting
Radio Assembly / Disassembly
Recommended Model
TSN6031A Speaker Kit with
RPX4134A Modification Kit
Motorola TRN 4671A
Motorola R1011
Motorola RTK4036A
RSX4048A
Minimum Specifications
1-20 Vdc, 0-40 A
Sheet 2
Figure 3-3 Recommended Test Equipment for MCX1000 Radio Servicing (Sheet 2)
General Type
Distortion Analyzer
Low Noise RF signal
generators (2 used)
Broadband Signal
Combiner, 50 ohms
Three - port resistive
combiner, 50 ohms
Psophometer
Spectrum Analyzer
20 dB thruline pad,
50 ohms
10 dB thruline pad,
50 ohms
Tunable notch filter.
50 ohms
Application
Distortion and SINAD
measurements
Receiver Intermodulation and
Adjacent-Channel Selectivity
measurements
Receiver Intermodulation and
Adjacent-Channel Selectivity
measurements
Three-generator Intermodulation
measurements
CEPT method SINAD
measurements
Transmitter spurs and harmonics
Transmitter spurs and harmonics
Transmitter spurs and harmonics
Transmitter spurs and harmonics
Recommended Model
Hewlett-Packard Model 331A
Hewlett-Packard Model 8640B
with option H60, “Low Single
Sideband Noise”
Anzac T-1000
Measurements M501 or
equivalent
Hewlett-Packard Model 3556A
Hewlett-Packard Model 141T
Mainframe with 8554L and
8552A Heads
Minimum Specifications
Average-responding detector
SSB noise >142 dB/ VHz below
carrier (20 kHz offset 1 Hz
bandwidth)
25 dB minimum isolation
60 dB (minimum) dynamic range
(30 kHz bandwidth) ; storage
and/or manual scan capability
are desirable
40 dB minimum notch depth,
tunable 136-174 MHz
Figure 3-4 Recommended Test Equipment for Radio Specifications Verification
»)
3.5 RADIO SET Eire dateas
ASSEMBLY
3.5.1 GENERAL
CAUTION
The hybrid assemblies are not field
repairable. Attempts to repair a
hybrid module will void the
warranty.
The MCX1000 Exploded View and Mechanical
Parts Lists (Figure 3-12) , MCX1000 Radio-Bottom
View (Figure 3-1) and MCX1000 Radio-Top View
(Figure 3-2) may be used as reference.
Many of the assemblies may be removed /
replaced by carefully disconnecting / connecting the
cables and removing / securing the attaching
hardware. Refer to the following paragraphs for
procedures applicable to specific assemblies
involving special precautions and steps that may
not be obvious.
The power interconnect board and the power
amplifier interconnect board cannot be removed.
Replacement of components on these boards, if
necessary, should be done from the exposed side of
the board. The leads of the replacement part must
be properly trimmed prior to insertion to avoid
short-circuits to the chassis. It is recommended that
a spacer be placed between the board and chassis, if
possible, to prevent solder from flowing below the
board and touching the chassis.
During reassembly of the radio, it is very
important to tighten all screws to the correct
torque. Correct torque is essential for reliable
electrical and mechanical performance. Too little
torque may result in intermittent ground
connections, microphonics, or insufficient heat
sinking. Too much torque may cause stripping of
the threads in the chassis. Recommended screw
torque specifications for all fasteners in the
MCX1000 radio are listed in Figure 3-5.
Before a screw is reinserted, check the threads
for foreign material. If the threads are damaged or
if foreign material is present which cannot be
removed, the screw should be discarded and a new
one inserted. Damaged or clogged threads ona
SECTION 3. MAINTENANCE AND ALIGNMENT
screw may damage the threads in the chassis.
Maxi
Torque
M2.5 x .45 30 Watt final 6 +1 In-Lbs.
transistor;main (0.7 0.1 Nm)
board heat sink
devices
M4.0x.70x9.0 | 30 Watt heat sink to
chassis mtg.; top and
20 +2 In-Lbs.
(2.3 + 0.2 Nm)
bottom cover screws
Synthesizer cover 14 + 2 In-Lbs.
(1.6 + 0.2 Nm)
VCO assembly 12) +2 In-Lbs:
(1.4 + 0.1 Nm)
All other 12 + 2In-Lbs.
applications not (1.4 + 0.1 Nm)
listed above
10 Watt RF final 5 + 1In-Lbs
mtg. stud (0.6 + 0.1 Nm)
Figure 3-5 Screw Torque Specifications
M3.0 x .50 x 10.0
M3.0 x .50 x 12.0
M3.0 x .50 x 8.0
3.5.2 VCO ASSEMBLY REPLACEMENT
To replace the VCO Assembly, perform the
following steps.
1. Remove three screws holding synthesizer
board in casting.
2. Use pull string on synthesizer board to remove
board from casting. Pull straight up to avoid
bending the connector pins.
3. Perform this step only if the radio is equipped
with a fast-lok synthesizer.
In preparation for removing the Synthesizer RF
Amplifier Board, remove the one screw holding
the VCO which is closest to the Synthesizer RF
Amplifier Board (see the board details for this
board, located in Section 7). Unsolder the
following three points, being careful not to
damage or tear the copper foil on the board:
-RF input from VCO
-Receive injection (J357)
-Transmit injection
Lift the Synthesizer RF Amplifier Board from
the chassis.
3-9
SECTION 3. MAINTENANCE AND ALIGNMENT
4. Remove the four screws (or three remaining
screws if step 3 was performed) holding the
VCO in place. Lift VCO out of compartment.
5. Reverse the above steps to install a new VCO.
The screws that secure the VCO and
synthesizer must be tightened to 12+2 inch-
pounds.
CAUTION
DO NOT over-tighten the screws in
Step 5. The screw threads in the
casting could be stripped if too much
torque is applied.
3.5.3 SYNTHESIZER BOARD
REPLACEMENT
To replace the Synthesizer Board, perform the
following steps.
1. Remove three screws (five screws in Fast-Lok
version) holding synthesizer board in casting.
2. Use pull string on synthesizer board to remove
board from casting. Pull straight up to avoid
bending the connector pins.
NOTE
Only the divider/phase detector IC
U115 is socket mounted and
therefore field replaceable. Replace-
ment is described below.
3. Use an integrated circuit extraction tool to
remove the IC U115 from its socket.
4, When replacing U115 with a new IC, note that
the IC pins may have to be bent slightly to line
up with the socket holes.
5. Replace the IC with firm pressure directed
toward the centre of the IC. Be sure to observe
correct orientation as indicated by the circuit
board legend.
6. Replace synthesizer board and screws.
Tighten screws to 12+2 inch-pounds.
3-10
3.5.4 SYNTHESIZER RF AMPLIFIER
BOARD (Used only with Fast-Lok
Synthesizer)
To replace the Synthesizer RF Amplifier
Board, perform the following steps.
1. Remove the Synthesizer Board as described
above (section 3.5.3).
2. Remove the screw holding the RF Amplifier
Board in position.
3. Unsolder the pin between the RF Amplifier
Board and the VCO interconnect board.
Unsolder at the RF Amplifier Board end. (See
Section 7 for details of this board.)
4. Unsolder the connections to the RF Amplifier
Board from J357 (receive injection) and the
transmit injection coax. Take care not to
damage the plated through holes into which
these connections are soldered.
5. Lift the RF Amplifier Board straight up to
remove it from the synthesizer compartment.
6. Reverse the above steps to replace the board.
Screw should be tightened to 12+2 inch-
pounds.
3.5.5 TRANSMITTER MODULE
_ REPLACEMENT
General
The following general procedures should be
used to ensure safe replacement of a defective
module, and proper transmitter operation.
@ Use a low power soldering iron (approximately 40
watts)
® Use only 2% silver solder on all hybrids.
@ Use “ solder wick “ or a bulb type solder sucker to
remove and clean solder from connection pins.
@ The transmitter alignment procedure should be
performed after any transmitter hybrid is replaced.
«
\
€
)
)
CAUTION
Before installing a transmitter
hybrid module, make sure all
connection pins are straight, and
have no solder fillet around the base
that would prevent the hybrid from
sitting flat. Failure to do so could
damage the hybrid and void the
warranty.
Low Level Amplifier
To replace the Low Level Amplifier, perform
the following steps.
1. Unsolder the six connection pins.
2. Using a small screwdriver remove the module
by alternately lifting at the two circuit board
cutout locations. Do not pull on any hybrid
components. Lift module straight up to
prevent damage to transistor on underside of
board; the transistor is secured in a clip.
“
Clean the six connection pins and circuit board
pads of any excess solder and straighten the
pins if necessary.
4. Place the new module over the pins to check
for alignment.
5. Press Q201 into heat sink using the blunt end
of a non-metallic tuning tool. Apply pressure
directly on top of Q201. When seated properly
there should be no more than 0.05 inches gap
between the module and the circuit board.
6. Bridge solder between the six connection pins
and their associated hybrid pads so solder is
wicked around 25% of the pins.
10 Watt Amplifier
To replace the 10 Watt Amplifier, perform the
following steps.
1. Unsolder the five connection pins.
2. Remove the main board ( see main board
removal / replacement procedure ).
SECTION 3. MAINTENANCE AND ALIGNMENT
3. Remove the transistor stud nut.
4. From the main board side, gently tap on the
stud of the transistor to remove the module.
5. Clean the five connection pins and circuit
board pads of any excess solder and straighten
the pins if necessary.
6. Install the new module being careful to check
for pin alignment. Be sure to apply thermal
compound to the stud of the transistor where it
contacts the chassis.
7. Replace the transistor stud nut and tighten to
a torque of 5 + 1 inch-pounds.
8. Bridge solder between the five connection pins
and their associatedhybrid pads so solder is
wicked around 25% of the pins.
30 Watt Amplifier
To replace the 30 Watt Amplifier, perform the
following steps.
NOTE
All soldering in the removal of this
module is done at the hybrid end of
the wires and coaxial cables.
1. Unsolder the input and output coaxial cables
so they are clear of the hybrid.
2. Unsolder the jumper going to thermistor
RT 1400 at the hybrid end.
3. | Unsolder the feed network L1403 at the hybrid
end.
4. Unsolder the ground lug next to thermistor
RT1400.
5. Remove the two screws holding transistor
Q1400
6. Remove the module.
7. Put thermal compound on the flange of the
new module device where it contacts the heat
sink.
3-11
SECTION 3. MAINTENANCE AND ALIGNMENT
8. Slide the new module into the heat sink
making sure it clears all connecting wires and
cables.
9. Install the Q1400 mounting screws and torque
to 6 + 1 inch-pounds.
10. Reconnect all wires and coaxial cables.
Harmonic Filter
To replace the Harmonic Filter, perform the
following steps.
1. Unsolder the centre conductor of the high
power PA output coax where it goes into the
PA interconnect board. Next unsolder the
coaxial shield and lift it from between the two
ground pins. Clean excess solder from pins
and centre conductor hole.
2. Unsolder the five connector pins.
3. Remove the wall between the harmonic filter
and 10 watt amplifier.
4. Remove the screw in the corner next to the
antenna connector.
5. Unsolder the jumper from the antenna
connector to the hybrid. Remove the coil-
capacitor-lug assembly if necessary. Remove
the module.
6. Clean the five connector pins and circuit board
pads of any excess solder and straighten the
pins if necessary.
7. Install the new module, being careful to check
for pin alignment.
8. Replace the wall between the filter and 10
watt amplifier. Torque screws to 12 +2 inch-
pounds.
9. Replace the corner screw making sure it goes
through the ground lug. Torque to 12 + 2
inch- pounds.
10. Resolder the jumper going to the antenna pad
on the hybrid. Resolder the coil-capacitor
assembly to the antenna connector if
3-12
iat
12.
necessary. All leads in this area must be less @
than 1/8 inch in length.
Bridge solder between the five connection pins
and their associated hybrid pads so solder is
wicked around 25% of the pins.
Resolder the high power PA coaxial cable to
the PA interconnect board .
3.5.6 MAIN BOARD REMOVAL/
REPLACEMENT
Main Board Removal
To remove the Main Board, perform the
following steps.
1.
2.
Remove radio top and bottom covers.
Remove four screws securing main board to
chassis; two of the screws pass through the
heat sink adjacent to edge of board.
NOTE
DO NOT remove two screws
securing main board to heat sink.
These two screws are identified by
the legend DO NOT REMOVE on
the main board.
Remove the two screws on bottom of radio
securing the front end to chassis crossbars.
Remove main board by lifting alternately:
® Rear connector, J350
@ Front of board near 12-pin connector, P355.
® Side of board near 8-pin connector P351 by
placing finger or non-marring tool in slot on
side of chassis.
Lift main board part way, avoiding thermal
grease on heat sink.
Remove 22-pin connector J352, by pulling
straight out to avoid bending pins of P352.
(For remote mount radios only) Remove 4-pin
connector, J380, located near rear connector
J350.
))
8. Disconnect two coaxial cables from connectors
under the board. Use gas pliers to twist
slightly, while pulling straight up.
9. Lift main board completely away from chassis.
10 . Wipe thermal grease from heat sink with cloth
or tissue, to avoid contact with clothing and
hands while servicing board.
Main Board Replacement
To replace the Main Board, perform the
following steps.
1. Plug front-end antenna coaxial cable (ANT)
into connector on power interconnect board,
observing legend (cable towards front of radio).
CAUTION
Seat plug fully into socket. Wrong
orientation of connector, or failure
to seat plug fully, will damage main
board components.
2. Plug injection coaxial cable (INJ) into
connector on chassis. Observe orientation
legend stamped into chassis.
CAUTION
Seat plug fully into socket. Wrong
orientation of connector, or failure
to seat plug fully, will damage main
board components.
3. (For remote mount radios only) Install 4-pin
connector J380. Connector is keyed; wires
come out toward front of radio.
4. Install 22-pin connector J352. Connector is
not keyed; orange dot on connector and square
pad on main board indicate pin 1; wire length
prohibits backwards insertion. Be sure
connector is not offset one or two pins to either
side.
Apply thermal grease to heatsink and chassis
if it was wiped off during servicing.
SECTION 3. MAINTENANCE AND ALIGNMENT
6. Place main board in chassis. Simultaneously
align front 12-pin connector, side 8-pin
connector, and rear connector into slot in
chassis. Push board fully down into chassis.
Avoid pinched wires.
7. Install two screws securing heatsink to
chassis. Tighten to 12 + 2.inch- pounds.
CAUTION
Correct torque is essential to ensure
proper radio performance. Too little
torque may result in intermittent
ground connections. Too much
torque may cause stripping of the
casting threads.
8. Install remaining two screws securing main
board to mounting bosses. Tighten to 12 + 2
inch-pounds.
9. Install two screws on bottom of chassis
securing front end casting to chassis crossbars.
Tighten to 12 +2 inch-pounds.
8. Replace radio top and bottom covers. Tighten
screws to 20 + 2 inch-pounds.
Dual Front End
The Dual Front End Assembly is attached to
the main board. See the Main Board removal /
replacement procedures above if access to the Dual
Front End is required.
3.5.7 CONTROL HEAD DISASSEMBLY /
ASSEMBLY (REMOTE MOUNT
MODELS)
Remote Mount Control Head
Microcomputer Board
To replace the Remote Mount Control Head
Microcomputer Board, perform the following steps.
3-13
SECTION 3. MAINTENANCE AND ALIGNMENT
1. Remove the two screws from the back of the
control head. Also remove the two screws
which pass through the back housing into the
rear cable connector.
2. Carefully separate the front and back housing
of the control head. Remove the four screws
holding the control head microcomputer board
in the back housing.
CAUTION
Use care when separating the front
and back housing of the control
head. The two halves are joined
internally by means of short flex
cables.
3. The flex connectors must be unsoldered from
the control head microcomputer board if its
replacement becomes necessary.
4. The control head microcomputer board is
replaced by reversing the above steps.
Display board
To replace the Display Board, perform the
following steps
1.
Remove the volume and channel selector
knobs using the following procedure.
@ Wrap each knob with foam to protect it.
@ A small vice should be used to firmly grip
each knob (one at a time).
@ Pull firmly on the control head to separate
the knob from its shaft.
Remove the nuts and knurled washers exposed
by the removal of the two knobs mentioned
above (on the front of the display panel ).
Remove the two screws from the back of the
contro! head.
Carefully separate the front and back housing
of the control head.
Remove the five screws that hold the display
board in the front housing.
CAUTION
Use care when separating the front
and back housing of the control
head. The two halves are joined
internally by means of short flex
cables.
NOTE
Hold the control head face down
when removing the display board so
that the front panel buttons won’t
fall out and get lost. Also, part of
the button mechanism may stick to
the display board. This part should
be replaced in its proper position
behind the light pipes in the control
head.
CAUTION
Take care not to touch the black
carbon pads behind the rubber
membranes of the button mecha-
nism. Also , do not touch the gold
plated etching on the surface of the
display board.
6. With the control head face down, the display
board may be carefully removed from the front
housing.
7. The display board is replaced by reversing the
above steps.
3.5.8 CONTROL HEAD DISASSEMBLY /
ASSEMBLY (DASH MOUNT
MODELS)
The Control Head on a dash mount model
radio contains both the Control Head Micro-
computer board and the Display board.Steps for
their removal and replacement are described below.
y
Dash Mount Control Head
Microcomputer Board
To replace the Dash Mount Control Head
Microcomputer Board, perform the following steps.
1. Remove the radio top and bottom covers.
2. Remove the four screws (two on each side of
the radio) that fasten the control head to the
main radio chassis.
3. Carefully pull the control head from the radio
chassis.
4. Remove the screws holding the microcomputer
board in place in the control head. Be sure to
remove the screw fastening the regulator to
the control head, as the regulator is soldered to
the display board.
5. The microcomputer board may now be
carefully pulled from the control head.
NOTE
The microcomputer board is
attached to the display board by
short flex cables. These are soldered
in place.
6. For complete removal of the microcomputer
board from the radio, the display board to
which it is attached must also be
removed.Instructions for display board
removal follow in the next section.
7. Replace the microcomputer board by reversing
the above steps.
Display Board
To replace the Display Board, perform the
following replacement steps.
Remove the radio top and bottom covers.
Remove the four screws (two on each side of
the radio) that fasten the control head to the
main radio chassis.
10.
LY
SECTION 3. MAINTENANCE AND ALIGNMENT
Carefully pull the control head from the radio
chassis.
Remove the volume and channel selector
knobs using the following procedure.
@ Wrap each knob with foam to protect it.
@ A small vice should be used to firmly grip
each knob (one at a time).
@ Pull firmly on the control head to separate
the knob from its shaft.
Remove the nuts and knurled washers exposed
by the removal of the two knobs mentioned
above (on the front of the display panel ).
The control head microcomputer board must
now be removed. (This will allow access to the
display board.) The previous section describes
the required steps.Note that some of the steps
have already been performed.
Microcomputer board removal exposes two
screws that fasten the adapter sleeve to the
control head. Remove these two screws.
Swing the adapter sleeve away from the
control head so that it unlatches from its other
two points of attachment.
The adapter sleeve may now be removed by
moving the microcomputer board diagonally
through the adapter sleeve opening.
Remove the five screws that hold the display
board in the front housing.
NOTE
Hold the control head face down
when removing the display board so
that the front panel buttons won’t
fall out and get lost. Also, part of
the button mechanism may stick to
the display board. This part should
be replaced in its proper position
behind the light pipes in the control
head.
With the control head face down, the display
board may be carefully removed from the front
housing.
SECTION 3. MAINTENANCE AND ALIGNMENT
CAUTION
Take care not to touch the black
carbon pads behind the rubber
membranes of the button
mechanism. Also , do not touch the
gold plated etching on the surface of
the display board.
12. The display board is replaced by reversing the
above steps.
3.5.9 COMMAND BOARD
To replace the Command Board, perform the
following steps.
1. Remove the top cover and the two screws
holding the command board in the casting.
2. Use the pull string to carefully lift the
command board straight up from the casting.
Care should be taken to avoid bending the
connector pins of the two connectors mounted
on this board.
3. Toreplace this board , reverse the above steps.
3.5.10 ANALOG INTERFACE BOARD
To replace the Analog Interface Board,
perform the following steps.
1. Remove the command board first.
See section preceeding.The analog interface
board is located underneath the command
board.
2. Remove the plug attached to the analog
interface board.
3. Remove the four screws that hold the analog
interface board in the casting.Note that one of
these four screws passes through the 5 volt
regulator.
4. The board may now be lifted from its position.
Take care not to bend the pins of the connector
that attaches this board to the front panel
interconnect board.
3-16
5.
This board is replaced by reversing the above
steps.
s
3.5.11 REMOTE INTERFACE BOARD
To replace the Remote Interface Board,
perform the following steps.
i
2.
Remove the top and bottom covers.
Remove the four screws (two on each side) that
attach the radio remote transciever front cover
to the main chassis casting.
The remote transciever front cover (including
the attached Remote Interface board) may now
be pulled from the main chassis casting.
To remove the Remote Interface board from
the front cover, the following six screws must
be removed; two screws that fasten the Remote
Interface board to the front cover, two screws
holding the remote cable jack and two screws
(inside the front cover) that fasten the two
transistors to the front cover.
This board is replaced by reversing the above
steps.
3.5.12 FRONT PANEL INTERCONNECT
BOARD
This board is soldered to the power
interconnect board and cannot be easily removed.
The following boards plug into the front panel
interconnect board:
@ Main board
® Command board
@ analog interface board
® synthesizer board
® Remote interface board (on remote mount
models)
@ Dash mount control head microcomputer
board (on dash mount models)
Removing the boards mentioned above will
leave the Front Panel Interconnect board fully
exposed within the main chassis casting.
SECTION 3. MAINTENANCE AND ALIGNMENT
3.6 TRANSMITTER ALIGNMENT 3.6.1 POWER LEVEL ADJUSTMENT
The transmitter of the MCX1000 Radio should NOTES
be aligned before the receiver. The procedures 1. Key the radio only while making
below should be performed in the sequence shown. an adjustment.
2. The adjustments should be
®@ transmitter alignment performed with a “receive” supply
® oscillator frequency adjustment voltage of 13.8 volts and a
@ deviation adjustment “transmit” supply voltage of 13.6
' volts.
Refer to Figure 3-6 which shows the various
test points which are to be referred to in the 1. Preset R236 (voltage limit potentiometer) by
procedure. Also refer to the pertinent schematic turning it fully clockwise. Preset R245 (power
diagrams and circuit board details located in this adjust potentiometer) by turning it fully
manual. counterclockwise.
R341
(VCO MOD.)
R344
(REF. MOD.)
HIGH RANGE
FILTER (ACCESS)
L5
(QUAD COIL)
R2103
SQUELCH ADJ. REF. OSC.
WARP ADJ. (ACCESS
IS FROM SIDE OF RADIO)
RISE METER
R245 (POWER ADJ.)
Figure 3-6 MCX1000 Radio Alignment Test Points
3-17
SECTION 3. MAINTENANCE AND ALIGNMENT
3.6.2
3-18
Select any transmit mode. Key the radio and
adjust R245 (power adjust potentiometer) for a
power level of 40 Watts (in Canada set power
level at 31 Watts) at a voltage of 13.6 volts.
Switch through all the transmit modes and
record the mode which gives the minimum
power level.
Switch through all the transmit modes while
observing the de voltage indication at TP27
(P351-2). Record the voltage level and mode
for the mode that gives the highest voltage
level. If this voltage level is greater than 10 V
dc, proceed to Step 8; do not perform Steps 5,6
and 7.
On the mode with the highest voltage level
found in Step 4, turn R245 clockwise until the
de voltage level increases approximately 3
volts, but do not exceed 12 volts.
NOTE
A 3 volt increase may not be
possible on some models. In this
case , reduce the radio power supply
voltage (not lower than 10.8 Vdc)
while monitoring TP27, until a
voltage level approximately 3 volts
higher than the voltage recorded in
Step 4 is obtained.
Adjust R236 for a dc voltage level that is 2
volts higher than the level recorded in Step 4.
Reset power supply voltage to 13.6 volts (if
necessary).
Switch to the mode that was determined in
Step 3. and repeat Step 2. on this mode.
Verify that all the transmit modes now have
the proper output power level.
OSCILLATOR FREQUENCY
ADJUSTMENT
CAUTION
Make sure the radio antenna
connector (J300) is terminated into
50 ohms.
10.
11.
Insert a Diagnostic Test Plug (part #
0180358A54) into the microphone jack on the
Control Head.
Enter the diagnostic mode by switching the
radio from “off” to “on”.
Press the DIM button repeatedly until the
word “RADIOTST” shows in the Control Head
display.
Remove the Diagnostic Test Plug and plug the
microphone into the microphone jack.
Press the PROG (program) button once. The
radio beeps to indicate it is in the Radio
Diagnostic mode and the radio display shows
(for a 3 second period) the current version
number of the radio software.
Push the Monitor button repeatedly until the
display shows the phrase “PL OFF”
Set the mode selector switch to channel 1 and
key the transmitter to transmit an
unmodulated carrier.
Adjust reference oscillator (channel element)
warp adjustment (see Figure 3-6) until the
proper frequency indication + 100 Hz is
obtained.
NOTE
If step 8. cannot be performed due to
insufficient transmitter power
output, perform steps 1 and 2 of
section 3.6.1.
Set the mode selector switch to mode 2 and
check the transmit frequency.
Repeat the procedure until all the modes have
been checked.
Reset the radio by turning it off and then on
again.
3.6.3 DEVIATION ADJUSTMENT
NOTE
It is important that deviation be
checked on all the transmit modes to
ensure that no over-deviation occurs
on any mode.
If the radio to be adjusted has voice encryption
capability, make sure that deviation adjustments
are made in clear mode unless specified otherwise.
10.
Set the mode selector switch to any available
PL/DPL mode on the radio set. If the radio has
selectable PL/DPL, select a PL/DPL code. If
the radio has no PL/DPL programmed into it
whatsoever, then select any mode.
Preset R344 (REF MOD potentiometer) to
mid-position.
Refer to Figure 3-6 for the location of
adjustment points.
Connect the audio oscillator output leads to
the microphone audio input, as explained
below:
-hot lead to J4200-6
-ground lead to J4200-3
Set the audio oscillator to 1000 Hz and adjust
its output level to 800 mVrms.
Using the appropriate rf load, key the
transmitter and observe the deviation level.
Readjust audio oscillator level per Step 4. if
necessary.
Adjust R341 (VCO MOD potentiometer) until
a 4.8 KHz deviation is obtained.
Set the radio set to the other transmit modes
and record the deviation level obtained on
each. Make a note of the mode having the
highest deviation level. If more than one mode
produces the same maximum deviation level,
note the mode with the highest frequency
among those having the maximum deviation
level.
Set the radio to the mode noted in Step 7.
Adjust R341 (VCO MOD potentiometer) to
obtain a 4.8 KHz deviation.
Disconnect the audio oscillator. Proceed to
Step 10.
Insert a Diagnostic Test Plug (part #
0180358A54) into the microphone jack on the
control head.
11.
12;
13.
14.
15.
16.
SECTION 3. MAINTENANCE AND ALIGNMENT
Enter the diagnostic mode by switching the
radio from off to on.
Press the DIM button repeatedly until the
word “RADIOTST” shows in the control head
display.
Remove the Diagnostic Test Plug and plug the
microphone into the microphone jack.
Press the PROG (program) button once. The
radio beeps to indicate it is in the Radio
Diagnostic Mode and the radio display shows
(for a 3 second period) the current version
number of the radio software.
Push the monitor button repeatedly until the
display shows the phrase “TX DPL”
Connect a direct-coupled input lead of an
oscilloscope to the digital output of a standard
test receiver. Adjust the REF MOD
potentiometer (R344) until the best eye
pattern symmetry is obtained. Refer to Figure
3-7. Check all other modes equipped with DPL
and verify that all the eye patterns are
similar.
REF MOD (R344)
SET TOO LOW
REF MOD (R344)
SET CORRECTLY
REF MOD (R344)
SET TOO HIGH
Figure 3-7 Examples of “ Eye Pattern” Symmetry
1 Ts
18.
19
Reset the radio by turning it off and then on
again.
Repeat Step 3. and Steps 8. through 17.
Check the deviation level on all transmit
modes and verify that it does not exceed 5.0
KHz.
3-19
SECTION 3. MAINTENANCE AND ALIGNMENT
3.6.4 ADDITIONAL DEVIATION
ADJUSTMENT FOR ENCRYPTED
RADIOS
The following procedure applies to digital
radios equipped for voice encryption operation.
Perform the following deviation adjustment
steps only after the deviation adjustment steps of
the previous section (Section 3.6.3) have been
completed.
1. Set the radio to the mode that has the highest
deviation in clear mode operation. Use the
mode noted in Step 7. of the previous section.
2. Press the Clear/Coded Select Button to place
the radio into the encrypted mode of operation
(the Clear/Coded Indicator LED lights).
3. Press the PTT button on the mic, while
monitoring the deviation.
4. Adjust resistor R6109 on the Securenet Option
Board for 4.0 kHz deviation. This resistor is
accessed by removing the top cover of the
radio. It is mounted at the upper edge of the
Securenet Option Board.
5. Check the deviation level on all transmit
modes and verify that it is between 3.4 and 4.4
kHz. Readjust R6109 if required.
TOP OF RADIO
(“MAIN BOARD” SIDE) L709
3.7 RECEIVER ALIGNMENT
Receiver alignment should be performed after
transmitter alignment is complete.
Several different RF front ends are available for the
MCX1000 Radio, depending on the frequency of the
radio and the type of front end used in the radio
(dual front end or single front end). Section 3.7.1
describes the dual front end alignment procedures
while Sections 3.7.2 and 3.7.3 describe the single
front end alignment procedures.
3.7.1 WIDESPACE DUAL FRONT END
ALIGNMENT
In the following procedure, radios in the 136 to
162 MHz frequency range are referred to as Range 1
radio sets, and radios in the 146-to 174 MHz range
are referred to as Range 2 radio sets. The terms
high and low range refer to the ranges of the
switched filters within the rf deck, the actual
frequency ranges are determined by the
requirements of the particular radio.
NOTE
The rf input coils (L701, L702, L703)
are covered with a strip of tape
(refer to figure 3-8.). These coils are
set at the factory during assembly
and MUST NOT BE FIELD
ADJUSTED. If a replace-ment rf
. deck is purchased from Motorola,
DO NOT REMOVE TAPE
L707 DO NOT ADJUST (SEE TEXT)
Figure 3-8 Widespace Dual Front End Alignment Points
3-20
é
SECTION 3. MAINTENANCE AND ALIGNMENT
$)
MBTRN4778A TUNING MOTOROLA RF PROBE
PROBE ADAPTER |
(B)
| | :
— =—— Wace rere
Figure 3-9 MCX1000 Alignment Probe
(A) RF Probe with Tuning Adapter in Position
(B) RF Probe and Tuning Adapter Separated
MAIN BOARD
HIGH RANGE FILTER
METER POINT (RF PROBE
WITH TUNING ADAPTER
IS INSERTED HERE)
Figure 3-10 Main Board Side Tuning Probe Position (High Range)
3-21
SECTION 3. MAINTENANCE AND ALIGNMENT
LOW RANGE FILTER
METER POINT (RF PROBE
WITH TUNING ADAPTER
IS INSERTED HERE)
Figure 3-11 Synthesizer Side Tuning Probe Position (Low Range)
these coils will be preset by the
factory. There should never be any
reason to readjust these coils.
switched filters. If the label is not supplied or
is missing, contact your Motorola
representative for information. The tune-up
frequency is not necessarily the midpoint of
the frequency range. Tune-up frequencies
may also be determined by using the Radio
Service Programmer.
1A. (Range 1 radios only) Carefully turn the slugs
of coils L704, L705, L706, L707, L708 and
L709 (Figure 3-8) counterclockwise until the
adjusting screws just protrude from the radio 3. Set the mode selector switch to any mode
chassis wall. programmed into the radio.
1B. (Range 2 radios only) Carefully turn the slugs 4. Connect an ac voltmeter across the audio
of coils L704, L705. L706. L707, L708 and
L709 clockwise until the adjusting screws are
flush with the torque nut on the rf deck
output of the radio set. The audio output must
be terminated in either the recommended 2-
ohm speaker / audio load (refer to test
housing.
2. Refer to label on the cover of the radio for tune-
up frequencies for both high and low range
3-22
equipment list), or a 2-ohm resister.
Depress the squelch button and the monitor
button (if used) so that noise is heard in the
yy
N)
£.
10.
i.
12.
13.
14.
speaker (if one is used).
Adjust the volume control until a comfortable
noise level is reached. If a 2-ohm load is used,
adjust the volume control for an indication of
approximately 1 volt across the load.
Adjust L5 (quad coil) (Figure 3-6) until a
maximum noise level is obtained from the
speaker, or the highest reading is obtained on
the voltmeter.
To tune the high filter: Set the rf generator to
the high range tune-up frequency at an rf level
of -20 dBm, and set the mode selector of the
radio to the highest receive operating
frequency.
Press the tuning probe adapter (Motorola #
MBTRN4778) onto the probe of the rf
voltmeter as shown in Figure 3-9.
Place the radio into the position shown in
Figure 3-10. and insert the test probe adapter
tip through the hole in the main board and
into the tuning hole of the first cavity (L707) of
the high range switched filter.
Hold the probe in position and turn L707 in
(clockwise) for Range 1 radios or out
(counterclockwise) for Range 2 radios until a
peak in the voltmeter reading is obtained.
Hold the probe in position and turn L708 in
the same direction (turned in Step 11) until a
dip in the voltmeter reading is obtained.
Hold the probe in position and turn L709 in
the same direction (turned in Step 11) until a
peak in the voltmeter reading is obtained. The
high range switched filter is now tuned.
To tune the low filter: Set the signal generator
to the low range tune-up frequency at an rf
level of -20 dBm, and the mode selector switch
to the lowest receive operating frequency.
Place the radio in the position shown in Figure
3-11 and place the test probe adapter tip into
the hole of the first cavity (L704) of the low
range switched filter.
16.
Wi.
18.
SECTION 3. MAINTENANCE AND ALIGNMENT
Hold the probe in position and turn L704 in
(clockwise) for Range 1 radios or out
(counterclockwise) for Range 2 radios until a
peak in the voltmeter reading is obtained.
Hold the probe in position and turn L705 in
the same direction (turned in Step 16) until a
dip in the voltmeter reading is obtained.
Hold the probe in position and turn L706 in
the same direction (turned in Step 16) until a
peak in the voltmeter reading is obtained.
Both switched filters are now tuned. Continue
with the Receiver Adjustment in Section 3.7.4.
3.7.2 SINGLE FRONT END ALIGNMENT
This procedure is to be used when maximum receive
frequency separation does not exceed 4 MHz. (See
Section 3.7.3 for alternate tuning procedures.)
Ls
Preset the tuning slugs of coils RF1, RF2, RF3,
RF4 and RF5 clockwise until they reach the
top of the coil forms. (See Figure 3-12 for coil
positions.)
Carefully turn the slugs of coils L01, LO2 and
L03 clockwise until they touch the injection
shield cover; then turn these slugs five full
turns in a counterclockwise direction.
Determine the tuneup frequency as follows:
-for single mode radios; Ftune = Freceive
-for multi-mode radios; determine Fig by
using the formula Fyig = (Fmax' + Fmin)/2-
NOTE
If there are receive frequencies within
plus or minus 0.5 MHz of Fyia, the
tuneup should be performed on the
receive frequency closest to Fig. If the
two nearest frequencies are
symetrically located above and below
Fmia, use the lower frequency. If there
are no frequencies within plus or
minus 0.5 MHz of Fmiag, check the
frequency separation. If separation
does not exceed 2 MHz, Ftune is the
closest frequency above Fyig. If
separation exceeds 2 MHz, the
alternate tuneup procedure described
in Section 3.7.3 must be used.
3-23
SECTION 3. MAINTENANCE AND ALIGNMENT
10.
Dy
12.
3-24
Set the mode selector switch to the proper
frequency as determined in the preceding step.
Connect a 2 ohm, 5 watt load to the radio
speaker output terminals, and connect an AC
voltmeter across this load. Polarity is
important: J350-9 is hot, J350-8 is ground.
Depress the squelch button to disable the
carrier squelch feature of the radio.
With no rf input to the radio, adjust the
volume control for 1.0 volt rms of noise across
the load.
Adjust L5 (quad coil) for maximum noise level,
readjusting the volume control as required to
maintain 1.0 volt rms of noise. This
adjustment is not critical at this time as the
quad coil will be repeaked later.
Set the slugs of LO1, L02, L03, RF1, RF2, RF3,
RF4 and RF5 in accordance with the
instructions provided in Figure 3-13, Coil
Adjustment Chart.
Connect a high input impedance DC voltmeter
to the INJ METER point (see Figure 3-12 for
location) and set it to a low DC voltage range.
Adjust coils L02, LO1 and LO3 (in this order)
until a maximum DC voltage level (typically
between 2.1 and 3.5 VDC) is obtained. Repeat
the step until no further increase in DC
voltage level can be obtained.
Connect a signal generator to the antenna
connector of the receiver and adjust the
generator so that it will provide an on
frequency, unmodulated signal that is
sufficiently strong to quiet the receiver.
Connect a DC voltmeter to the RISE MTR
point (see Figure 3-12) and set it to a low DC
voltage range. Adjust coils RF1, RF2, RF3,
RF4 and RF5 (in this order) until a maximum
DC voltage indication is obtained. Adjust the
signal generator, as required, to maintain the
DC voltage below saturation level of the rise
meter during tuneup (typical 2.5 - 3.5 V).
Repeat the step until no further increase in DC
voltage level can be obtained.
Set the signal generator to provide a 1 mV rf
output modulated with a 1 KHz sine wave set
to produce 60% of full system deviation (60% of
5 KHz = 3 KHz). With the volume control set
3.7.3
for 1 V rms across the 2 ohm load, very slowly
tune L5 (quad coil) for maximum audio output.
This adjustment completes the rf deck
alignment. Continue with the adjustments in
Section 3.7.4.
SINGLE FRONT END ALIGNMENT
(ALTERNATE PROCEDURE)
This procedure is to be used when there are no
receive frequencies within plus or minus 0.5 MHz of
Finia (where Fmia = (Fmax + Fmin)/2) and channel
separation (Fax -
Fmin) exceeds 2 MHz but not 4
MHz.
1.
Preset the tuning slugs of coils RF1, RF2, RF3,
RF4 and RF5 clockwise until they reach the
top of the coil forms. (See Figure 3-12 for coil
positions.)
Carefully turn the slugs of coils L01, L02 and
L03 clockwise until they touch the injection
shield cover; then turn these slugs five full
turns in a counterclockwise direction.
Connect a 2 ohm, 5 watt load to the radio
speaker output terminals, and connect an AC
voltmeter across this load. Polarity is
important: J350-9 is hot, J350-8 is ground.
Depress the squelch button to disable the
carrier squelch feature of the radio.
With no rf input to the radio, adjust the
volume control for 1.0 volt rms of noise across
the load.
Adjust L5 (quad coil) for maximum noise level,
readjusting the volume control as required to
maintain 1.0 volt rms of noise. This
adjustment is not critical at this time as the
quad coil will be repeaked later.
Set the slugs of L0O1, LO2, LO3, RF1, RF2, RF3,
RF4 and RF5 in accordance with the
instructions provided in Figure 3-13, Coil
Adjustment Chart.
Select the mode with the lowest receive
frequency.
Connect a high input impedance DC voltmeter
to the INJ METER point (see Figure 3-12 for
location) and set it to a low DC voltage range.
<
=>
SECTION’3. MAINTENANCE AND ALIGNMENT
LO1
LO2
LO3
INJ.
METER
RF5
RF4
R2103
SQUELCH
ADJ.
LOS
(QUAD
COIL)
RISE MTR.
Figure 3-12 MCX1000 Single Front End Alignment Points
3-24A
SECTION 3. MAINTENANCE AND ALIGNMENT
—————
10.
CCW TURNS FROM
PRESET POSITION
(SEE STEPS 1. AND 2.
IN SECTION 3.7.2 OR
SECTION 3.7.3):
140
128
RANGE II:
RANGE |:
138
150
180
168
170
158
160
148
RECEIVER FREQUENCY Frtune OR Fmip (IN MHZ)
THIS CHART IS REFERENCED IN STEP 9. OF :
SECTION 3.7.2 AND STEP 7. OF SECTION 3.7.3
Figure 3-13 MCX1000 Single Front End Coil Adjustment Chart
Adjust coils L02, LO1 and LO03 (in this order)
until a maximum DC voltage level (typically
between 2.1 and 3.5 VDC) is obtained. Repeat
the step until no further increase in DC
voltage level can be obtained.
Connect a signal generator to the antenna
connector of the receiver and adjust the
generator so that it will provide an on channel
frequency (the lowest receive frequency of the
radio) unmodulated signal that is sufficiently
strong to quiet the receiver. Connect a DC
voltmeter to the RISE MTR point (see Figure
3-12 for position) and set it to a low DC voltage
3-24B
11.
range. Adjust coils RF1, RF2, RF3, RF4 and
RF5 (in this order) until a maximum DC
voltage indication is obtained. Adjust the
signal generator, as required, to maintain the
DC voltage below saturation level of the rise
meter during tuneup (typical 2.5-3.5 V).
Repeat the step until no further increase in DC
voltage level can be obtained.
Select the mode with the highest receive
frequency. Connect a DC voltmeter to the INJ
METER point (see Figure 3-12 for location)
and set it to a low DC voltage range. Noting
the number of turns required, adjust L02, L0O1
12.
13.
14.
and L03 in a clockwise direction (in this order)
only once to obtain a maximum DC voltage
indication with each coil. (Some coils may not
require any change.)
Connect a DC voltmeter to the RISE MTR
point. Connect a signal generator to the
receiver and apply an on channel frequency
(the highest receive frequency of the radio)
unmodulated signal of sufficient strength to
quiet the receiver. Noting the number of turns
required, adjust coils RF1, RF2, RF3, RF4 and
RF5 in a clockwise direction (in this order)
only once to obtain a maximum DC voltage
indication with each coil (typically between
2.5 and 3.5 VDC). (Some coils may not require
change.) While performing the step, adjust the
generator, as required, to maintain the DC
voltage at the specified level (between 2.5 and
3.5 VDC).
For any coil whose position was changed while
performing steps 11. and 12. , turn the coil in
question counterclockwise half the number of
turns recorded in steps 11. and 12.
Set the signal generator to provide a 1 mV RF
output modulated with a 1 KHz sine wave set
to produce 60% of full system deviation (60% of
5 KHz = 3 KHz). With the volume control set
for 1 volt rms across the 2 ohm load, very
SECTION 3. MAINTENANCE AND ALIGNMENT
slowly tune L5 (quad coil) for maximum audio
output. This adjustment completes the rf deck
alignment. Continue with the adjustments in
Section 3.7.4.
3.7.4 RECEIVER ADJUSTMENT (SQUELCH)
The receiver adjustment is made after RF deck
alignment is complete.
f
With no rf input, press the squelch/unsquelch
button to squelch the radio.
Adjust the squelch trimmer R2103 fully
counterclockwise (see Figure 3-12 for
location).
Apply an on-frequency, 1 mv rf signal,
modulated with 1 kHz at 3 kHz deviation.
Adjust the audio volume control for 5 watts
(3.16 Vrms on a 2 ohm load).
Reduce the rf level until 10 db SINAD is
obtained.
Adjust squelch trimmer R2103 so that the
radio just stays unmuted.
Verify that the radio unsquelches on all modes
within the limits of 9 db SINAD minimum and
11 db SINAD maximum.
3-24C/D
= 4
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SECTION 3. MAINTENANCE AND ALIGNMENT
35 em
UMBER 40 ON THIS DIAGRAM,
CCESSORY PLUGS ARE AVAILABLE
RY PLUG (P350)
SING: 1584193M01 (1 USED)
WN
0984151803 (7 USED)
ae RY PLUG
| SING: 1484590801 (1 USED)
0984151803 (5 USED)
Figure 3-12
y be Radio Set
Si] Exploded View
(Sheet 1)
3-25
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SECTION 3. MAINTENANCE AND ALIGNMENT
NOTE:FOR PART NUMBER 40 ON THIS DIAGRAM,
TWO DIFFERENT ACCESSORY PLUGS ARE AVAILABLE
. 7 PIN ACCE
Radio Set
(Sheet 1)
Figure 3-12
Exploded View
HOUSING: 1484590B01 (1 USED)
HOUSING: 1584193M01 (1 USED)
PIN: 0984151B03 (5 USED)
PIN: 0984151B03 (7 USED)
SSORY PLUG (P350)
2. 5 PIN ACCESSORY PLUG
g
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rey
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22
3(2)
3-25
parts list
RADIO SET MECHNICAL PARTS (DASH MOUNT VERSION)
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
1 6100018M01 LENS C/H B
2 3200044M01 GASKET LENS
3 3600017M01 KNOB VOLUME/CHANNEL SW (2 used)
3A SPRING CLIP (P/O 3600017M01)
( 2 used)
4 284218M02 NUT, M9 X 0.75
5 484219M02 LOCKWASHER, #9 internal
6 284218M01 NUT, M7 X 0.75
i/ 484219M01 LOCKWASHER, #7 internal
8 1500331M01 PLASTIC HOUSING C/H FRONT
9 4000100M02 ROTARY SW 24 POS, 1 OF 3
10 1800028M01 POT, 2K-20-.05W linear
11 SEE FIGURE 3-13 (SHEET 2)
FOR BUTTON PART NUMBERS
12 6100017M01 LIGHT PIPE "L" SHAPE
13 6100017M02 LIGHT PIPE STRAIGHT
14 7500029M01 SILICON KEYPAD L SHAPED
15 7500029M02 SILICON KEYPAD STRAIGHT
16 DISPLAY BOARD
17 0310945A11 SCRTPG P3.12X1.27X8 STARSLTPAN
(5 used)
18 3280058H03 GASKET HOUSING
19 4300069M01 SLEEVE , DASH
20 0310907A20 SCRMCH M3X0.5X10 INTSTAR PAN
(2 used)
21 DASH MOUNT C/H MICRO. BOARD
22 0310943J03 SCR M2.5X0.45X6 STL
0400009761 WSHRLCK 4 INT STL CAD (2 used)
25 3084177M01 CABLE, solid coaxial
and 2910208A08 EYELET, 2 used
26 BOARD, front panel interconnect
27 1484184M01 INSULATOR, option area
28 ANALOG INTERFACE BOARD
29 0482318N01 WASHER, flat synthesizer connector
30 384208M03 SCREW, M2.2 X 0.45 X 6.0
31 0310943J10 SCREW T.T M3.0-0.5X8
32 CABLE, assembly (refer to associated
circuit board parts list)
33 0310943J10 SCREW, washer; M3 X 0.5 X 8.0
34 1484173M01 INSULATOR, top cover
35 1584175M01 COVER, top
36 0384208M12 SCREW, Phillips M4 X 0.7 X 9.0
37 4684135M01 GUIDE, printed circuit
38 BOARD, main
39 2684104M01 HEATSINK
40 J350 (refer to main board parts list)
41,42 0310943J10 SCREW, washer M3 X 0.5 X 8.0
43 BOARD, dual front end
44 1584143M01 HOUSING connector base dc
45 2984167M01 TERMINAL, round
45A 0284334M01 NUT, terminal M3
46 1584144M01 HOUSING, connector cover dc
47 BOARD, power interconnect
48 0310943J10 SCREW, washer M3 X 0.5 X 8.0
49 0384208M12 SCREW, Phillips M4 X 0.7 X 9.0
50 0310943J10 SCREW, washer M3 X 0.5 X 8.0
51 6484188M01 PLATE, feed-thru
Be; 2684142M01 HEATSINK (30 W)
53 0310943J10 SCREW, washer M3 X 0.5 X 8.0
54 HYBRID, 30 W PA
boke 0310943J10 SCREW, washer M3X 0.5 X 8.0
Figure 3-12
Radio Set Exploded View
(Sheet 2)
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
56 0384208M04 SCREW, washer M2.5 X 0.45 X 8.0
57 1584141M01 COVER, heatsink
58 0982442E09 J300 CONNECTOR, antenna
59 2784061M01 CHASSIS
60 0310943J10 SCREW, washer M3 X 0.5 X 8.0
61 BOARD PA interconnect
62 2684102M01 SHIELD, wall transmitter
63 0310943J10 SCREW, washer M3 X 0.5 X 8.0
64 0384208M12 SCREW, Phillips M4 X 0.7 X 9.0
65 1584174M01 COVER, bottom
66 HYBRID, harmonic filter
67 2684176M01 SHIELD, PA
68 5584300B01 HANDLE
69 HYBRID, 10 W PA
70 HYBRID, low level amplifier
ii 0310943J10 SCREW, washer M3 X 0.5 X 8.0
72 HYBRID, VCO
73 3284178M01 GASKET, rf (19 inches)
74 0310943J10 SCREW, washer M3 X 0.5 X 8.0
75 0384208M11 SCREW, washer M3.5 X 0.6 X 14.0
76 2684103M01 SHIELD, synthesizer (std lock models)
77 1584147M01 COVER, synthesizer
78 0310943J10 SCREW, washer M3 X 0.5 X 8.0
79 BOARD, synthesizer VHF
80 0310943J10 SCREW, washer M3 X 0.5 X 8.0
81 1484170M01 INSULATOR, synthesizer cover
82 4383779N01 INSERT, chassis plug
83 027003 NUT, 8-32 X 5/16 X 1/8“
84 7582200H03 PAD, 2 used
85 1484172M01 INSULATOR, power board
86 6484169M01 PLATE NUT, cover side; 4 used
87 6484168M01 PLATE NUT, cover rear; 3 used f
88 4282604H01 CLIP, transistor
89 1484171M01 INSULATOR
90 1582221N01 COVER, connector (microphone)
91 1582222N01 COVER, connector (accessory)
92 3284178M01 GASKET, rf (11.6 inches)
93 3284178M01 GASKET; rf (8.3 inches)
94 BOARD, synthesizer rf amplifier
(Fast-Lok models)
95 MDC600/1200 FILTER BOARD
96 4300070M01 STANDOFF , PLASTIC (2 used)
97 - COMMAND BOARD
98 7582200H01/03 PAD, FOIL
99 031094303 SCREW T.T M2.5-0.45X6.0
RADIO SET MECHNICAL PARTS (REMOTE MOUNT VERSION)
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
17 0310945A11 SCR TPG P3.12X1.27X8 STAR SLT
PAN
22 0310943J03 SCR M2.5X0.45X6 STL
31 0310943J10 SCREW TT M3.0-0.5X8
100 REMOTE MOUNT C/H MICRO.
BOARD
101 1500332M01 PLASTIC HOUSING C / H BACK
102 0300039M01 SCREW, CAPTIVE (2 used)
103 0300140295
or 0300140143 SCR MCH 4-40X1/2 STARFLT STL
(2 used)
104 0300038M01 CAPTIVE SCREW (2 used)
105 3000053M01 17 FT. REM. CONTROL CABLE
106 6400247M01 REMOTE RADIO FRONT COVER
107 REMOTE INTERFACE BOARD
108 1482125N02 FRONT PANEL INSULATOR
109 0784891M01 BRACKET, TRUNNION
110 1807610701
111 03140147 or SCREW, TPG 10-32 X 3/4
03140148
CONTROL HEAD MOUNTING KNOB j
SCREW, TPG 10-32 X 1-1/2
SECTION 3. MAINTENANCE AND ALIGNMENT
109
NOTE:
ITEMS NOT
PARTS ON ]
MOUNT R
OU Aly
Figure 3-12
Radio Set Exploded
View (Sheet 3)
3-27/3-28
parts list
RADIO SET MECHNICAL PARTS (DASH MOUNT VERSION)
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
1 6100018M01 LENS C/HB
2 3200044M01 GASKET LENS
3 3600017M01 KNOB VOLUME/CHANNEL SW (2 used)
3A SPRING CLIP (P/O 3600017M01)
( 2 used)
4 284218M02 NUT, M9 X 0.75
5 484219M02 LOCKWASHER, #9 internal
6 284218M01 NUT, M7 X 0.75
ee 484219M01 LOCKWASHER, #7 internal
8 1500331M01 PLASTIC HOUSING C/H FRONT
9 4000100M02 ROTARY SW 24 POS, 1 OF 3
10 1800028M01 POT, 2K-20-.05W linear
11 SEE FIGURE 3-13 (SHEET 2)
FOR BUTTON PART NUMBERS
12 6100017M01 LIGHT PIPE "L" SHAPE
13 6100017M02 LIGHT PIPE STRAIGHT
14 7500029M01 SILICON KEYPAD L SHAPED
15 7500029M02 SILICON KEYPAD STRAIGHT
16 DISPLAY BOARD
17 0310945A11 SCRTPG P3.12X1.27X8 STARSLTPAN
(5 used)
18 3280058H03 GASKET HOUSING
19 4300069M01 SLEEVE , DASH
20 0310907A20 SCRMCH M3X0.5X10 INTSTAR PAN
(2 used)
21 DASH MOUNT C/H MICRO. BOARD
22 0310943J03 SCR M2.5X0.45X6 STL
0400009761 WSHRLCK 4 INT STL CAD (2 used)
25 3084177M01 CABLE, solid coaxial
and 2910208A08 EYELET, 2 used
26 BOARD, front panel interconnect
oh 1484184M01 INSULATOR, option area
28 ANALOG INTERFACE BOARD
29 0482318N01 WASHER, flat synthesizer connector
30 384208M03 SCREW, M2.2 X 0.45 X 6.0
31 031094310 SCREW T.T M3.0-0.5X8
32 CABLE, assembly (refer to associated
circuit board parts list)
33 0310943J10 SCREW, washer; M3 X 0.5 X 8.0
34 1484173M01 INSULATOR, top cover
35 1584175M01 COVER, top
36 0384208M12 SCREW, Phillips M4 X 0.7 X 9.0
Se 4684135M01 GUIDE, printed circuit
38 BOARD, main
39 2684104M01 HEATSINK
40 J350 (refer to main board parts list)
41,42 0310943J10 SCREW, washer M3 X 0.5 X 8.0
43 BOARD, dual front end
44 1584143M01 HOUSING connector base dc
45 2984167M01 TERMINAL, round
45A 0284334M01 NUT, terminal M3
46 1584144M01 HOUSING, connector cover dc
47 BOARD, power interconnect
48 0310943J10 SCREW, washer M3 X 0.5 X 8.0
49 0384208M12 SCREW, Phillips M4 X 0.7 X 9.0
50 0310943J10 SCREW, washer M3 X 0.5 X 8.0
51 6484188M01 PLATE, feed-thru
52 2684142M01 HEATSINK (30 W)
53 0310943J10 SCREW, washer M3 X 0.5 X 8.0
54 HYBRID, 30 W PA
55 0310943J10 SCREW, washer M3X 0.5 X 8.0
Figure 3-12
Radio Set Exploded View
(Sheet 2)
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
56 0384208M04 SCREW, washer M2.5 X 0.45 X 8.0
ore 1584141M01 COVER, heatsink
58 0982442E09 J300 CONNECTOR, antenna
59 2784061M01 CHASSIS
60 0310943J10 SCREW, washer M3 X 0.5 X 8.0
61 BOARD PA interconnect
62 2684102M01 SHIELD, wall transmitter
63 0310943J10 SCREW, washer M3 X 0.5 X 8.0
64 0384208M12 SCREW, Phillips M4 X 0.7 X 9.0
65 1584174M01 COVER, bottom
66 HYBRID, harmonic filter
67 2684176M01 SHIELD, PA
68 5584300B01 HANDLE
69 HYBRID, 10 W PA
70 HYBRID, low level amplifier
71 0310943J10 SCREW, washer M3 X 0.5 X 8.0
72 HYBRID, VCO e
73 3284178M01 GASKET, rf (19 inches)
74 031094310 SCREW, washer M3 X 0.5 X 8.0
75 0384208M11 SCREW, washer M3.5 X 0.6 X 14.0
76 2684103M01 SHIELD, synthesizer (std lock models)
77 1584147M01 COVER, synthesizer
78 0310943J10 SCREW, washer M3 X 0.5 X 8.0
79 BOARD, synthesizer VHF
80 0310943J10 SCREW, washer M3 X 0.5 X 8.0
81 1484170M01 INSULATOR, synthesizer cover
82 4383779N01 INSERT, chassis plug
83 027003 NUT, 8-32 X 5/16 X 1/8“
84 7582200H03 PAD, 2 used
85 1484172M01 INSULATOR, power board
86 6484169M01 PLATE NUT, cover side; 4 used
87 6484168M01 PLATE NUT, cover rear; 3 used
88 4282604H01 CLIP, transistor
89 1484171M01 INSULATOR
90 1582221N01 COVER, connector (microphone)
91 1582222N01 COVER, connector (accessory)
92 3284178M01 GASKET, rf (11.6 inches)
93 3284178M01 GASKET; rf (8.3 inches)
94 BOARD, synthesizer rf amplifier
(Fast-Lok models)
95 MDC600/1200 FILTER BOARD
96 4300070M01 STANDOFF , PLASTIC (2 used)
97 a COMMAND BOARD
98 7582200H01/03 PAD, FOIL
99 0310943J03 SCREW T.T M2.5-0.45X6.0
RADIO SET MECHNICAL PARTS (REMOTE MOUNT VERSION)
REFERENCE
SYMBOL
MOTOROLA
PART NO.
0310945A11
0310943J03
0310943J10
1500332M01
0300039M01
0300140295
or 0300140143
0300038M01
3000053M01
6400247M01
1482125N02
0784891M01
1807610701
03140147 or
03140148
DESCRIPTION
SCR TPG P3.12X1.27X8 STAR SLT
PAN
SCR M2.5X0.45X6 STL
SCREW TT M3.0-0.5X8
REMOTE MOUNT C/H MICRO.
BOARD
PLASTIC HOUSING C/ H BACK
SCREW, CAPTIVE (2 used)
SCR MCH 4-40X1/2 STARFLT STL
(2 used)
CAPTIVE SCREW (2 used)
17 FT. REM. CONTROL CABLE
REMOTE RADIO FRONT COVER
REMOTE INTERFACE BOARD
FRONT PANEL INSULATOR
BRACKET, TRUNNION
CONTROL HEAD MOUNTING KNOB
SCREW, TPG 10-32 X 3/4
SCREW, TPG 10-32 X 1-1/2
SECTION 3. MAINTENANCE AND ALIGNMENT
101
PARTS ON THE DASH MOUNT RADIO. REFER TO THE DASH
ITEMS NOT NUMBERED IN THIS FIGURE ARE IDENTICAL TO
MOUNT RADIO EXPLODED VIEW.
NOTE:
Figure 3-12
Radio Set Exploded
View (Sheet 3)
3-27/3-28
SECTION 3. MAINTENANCE AND ALIGNMENT
UBIs AOU |8@A87 Z ——(20ua} (wos} {me J (uondo uondAsoue UM
sos sone (en (7)
uonisod a}eusa}e)
(A H ¥)}— ddd eqewejes
(eova) —_______{,p }_ auoja|Hulg 9jqe}D98|aS
jO4JUOD @WIN|OA
Pue YOIMS HO/UO —10}0jag @po/
uoyng UMOG 8Uu0Z
uoyng dp eu0Z7
uoyng 10}UO0/\
uo}yng yeajag Yyojenbs
Fk a= euoje|bulg jend
(P) —— _ guoyajBulg = wwsued]
000LXDW VIOYOLOW |
:
yoy Aouebiew3 OGW
JOBJBS PEepoO/Jes|O
JOBI9S Bpoyg jeng pue pepogjses|O
1dd/Nd sIgqeVe|j9g ——
Figure 3-13 MCX1000 Control Head Button Placement (Sheet 1 )
tae
3-29
SECTION 3. MAINTENANCE AND ALIGNMENT
(AW) 3800026M01
(iS) 3800026M02
(A) 3800026M03
3800026M04 Ba
3800026M05
3800026M06
3800026M07
¢
3800026M1 1
3800026M12 (< f) 3800026M24
3800028M01 Emergency Button Shroud
= 3800029M01 Button Insert Plunger
Figure 3-13 MCX1000 Control Head Button Placement (Sheet 2)
(Q
(AA) MOTOROLA LIMITED
Communications Division
SECTION 4.
RADIO FUNCTIONAL
BLOCK DIAGRAMS
AND CABLE KITS
4.1 RADIO FUNCTIONAL BLOCK
DIAGRAM
The overall radio functional block diagram is
shown in Figure 4-1. Note that the following blocks
are detailed in other sections of this manual :
@ Section 5. Control Head
In Section 5 of this manual, the Control Head
Functional Block Diagram contains information on
the boards listed below.
-Display Board
-Dash or Remote Mount Microcomputer Board
@ Section 6. Radio Microcomputer System
In Section 6 of this manual, the Radio
Microcomputer System Functional Block Diagram
contains information on the boards listed below.
-Command Board
-Analog Interface Board
-Front Panel Interconnect Board
-Remote Mount Interface Board (remote
mount models only)
-MDC600 / 1200 Filter Board (used only with
MDC600 / 1200 Signalling option)
@ Section 7. Synthesizer and VCO
In Section 7 of this manual, the two
Synthesizer and VCO Functional Block Diagrams
(for standard and Fast-Lok synthesizers) contain
information on the boards listed below.
-Synthesizer Board
-VCO Assembly (sealed unit, not field
repairable)
4.2 AUDIO BLOCK DIAGRAMS
Receiver Audio Block Diagram
Figure 4-2 Receiver Audio Block Diagram
indicates the audio path (both voice and data
information) for the MCX1000 Radio Set in receive
mode.
Transmitter Audio Block Diagram
Figure 4-3 Transmitter Audio Block Diagram
indicates the audig path (both voice and data
information) for the MCX1000 Radio Set in
transmit mode.
4.3 CABLING DIAGRAMS
Remote Control Head Cable
Figure 4-4 shows the schematic diagram of the
MCX1000 Radio Set Remote Control Head Cable
(used only in the remote mount radio) to connect the
Control Head to the main radio chassis.
Radio Internal Cable
Figure 4-5 shows the schematic diagram of the
MCX1000 Radio Set Internal Cable.
4-1/4-2
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SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
\/ DC POWER
AND CABLE KITS
3 ; 8
| | IGN. TX
SW As PAA ie
INPUT
FILTES
g POWER
Sees INTERCONNECT
~ BOARD
SECONDARY
MUTE GATE
ETECTOR DE-EWP AUDIO
KD }UFFER AMP POWER AMP
4 SY
RATOR
RATOR
DISPLAY BOARD od a a
REMOTE C/H MICRO BOARD
P4700
| 9.67
CONTROL He
HEAD
CABLE
J2200 |
REMOTE | :
INTERFACE rt z
BOARD 7 =
aw oe =] wy
“| = he Ele
= = = oo] oO
5 6 10 wD) 9 4.8 1P355 1350 rs 9 |
Ss ae ee
| =a
ES
SPEAKER
(2 OHMS)
| Figure 4-1
_ Radio Functional Block Diagram (Sheet 1.)
4-3/4-4
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|
‘ S ver
\V DC POWER
RF POWER
AMPS
SYNTH RF
POWER
INTERCONNECT
BOARD
DISPLAY BOARD
REMOTE C/H MICRO BOARD
P4700
CONTROL
HEAD
CABLE
J2200
REMOTE
INTERFACE
BOARD
INPUT
FILTER
SYNTHESIZER
BOARD
" INPUT
DUAL FRONT END
SWITCH
LOW
RANGE
UE Was
COMMAND
BOARD
OUTPUT
SWITCH
FILTER
SEEECI
LOGIC
J36@ J353 J364
P365
J363
FRONT PANEL
INTERCONNECT
BOARD
P363
P1701
ANALOG
INTERFACE
BOARD
SLOW S
4. BV
9. 6V
PL/DPL
VCO _IN
IDC AU
PL/DPL
OR Timeex
PL FILTERED AUDIO
RX AUDIO MUTE
SLOW SQ PRESET
SQUELCH NOISE
QUELCH
REF
D10
VCO
AUDIO
@ 14 12
MIC AUDIO
2
4
: MUTE GATE
ai
i
LIMITER
BUFFER
CRYSTAL
VETER
LIMIT
AMP
SPLATTER
FILTER
PWR ADJ
VOLT LMT
TRANSMITTER
POWER CONTROL
|
BUFFER
ER SQUELCH
IDC MUTE
GATE
MAIN BOARD
IF AMP
CRYSTAL
FILTER
DIR. COUPLER
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
SW A+ PA A+
TEMP. COMP.
VCO LOCK
SECONDARY
MUTE GATE
LIMITER DETECTOR DE-EMP AUDIO
QUADRATURE BUFFER AMP POWER AMP
DETECTOR
FULL WAVE INTEGRATOR
RECTIFIER COMPARATOR
9. 6V
9. 6T
9. 6T my
SWITCH :
JU328
REF >
MOD as
laa =z
= e
= ly =
7 wn —| tal
> a a e
ce 2 cone
a Qa oO = —_
o So —) wiz Co So
= = l = all = oOo] ©
o a —
= ne if as = = ol o —
> fe <4 n nn > > > x
- 7 5 6 10 12 9 1 s8AiPsss 1350 | 8 9 |
[cee Say
BERS
SPEAKER
(2 OHMS)
Figure 4-1
Radio Functional Block Diagram (Sheet 1.)
4-3/4-4
-
— | =) a ae
EP ae
sve
terO587 v1
4
oar
°
.
=
a
‘2a iy
.
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
ep
HEAT SENSE
LLA A+
DIRECTIONAL COUPLER
ND OM MO S&S CO — WG
J300
POWER INTERCONNECT BRD
Figure 4-1
adio Functional Block Diagram (Sheet 2.)
(Power Amplifier Section)
4-5/4-6
‘7 ypeense?? #
(Nash
ee ee ae Gadel
”
:
.
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
i Sek TP S6O J359
GND
2
1
60",
SS Sai ee
4
3)
30W PA HYBRID
ial BATT+
LLA A+
DIRECTIONAL COUPLER
HARMONIC FILTER/ANTENNA SWITCH HYBRID
ANTENNA HARMONIC DIRECTIONAL
pO P| FILTER ne COUPLER e
TEMP COMP DIODE
@ =
NO on &» CO — W
a
LLA HYBRID
J308
\V/
PA INTERCONNECT BRD
J356
POWER INTERCONNECT BRD TX INJECTION
FROM SYNTH
TO FRONT END
Figure 4-1
Radio Functional Block Diagram (Sheet 2.)
(Power Amplifier Section)
4-5/4-6
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
© amp DISC AUDIO
QUTPUT
O( FOR OPTION USE)
RX AUDIO MUTE
‘ | SECONDARY MUTE AUDIO AMP SPEAKER
U50A GATE
DISC AUDIO
DISCRINW- UDIO
INATOR be aa O FILTERED AUDIO
OUTPUT
} =r
RX BUS
RX AUDIO AUDIO
INPUT
(FOR OPTION Jen
|
Figure 4-2
Receiver Audio Block Diagram
4-7/4-8
SD ee a eee
USOA
ie DISC AUDIO
DETECTOR BUFFER
DISCRIM-
INATOR
RX AUDIO O AUDIO
INPUT
(FOR OPTION USE) ar).
U2201A
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
e AMP DISC AUDIO
SECOND MICROCOMPUTER
PA 7 SIDETONE GATE
>
U1702
[TONE GENERATOR
LONE. EDEER
Rae ADP L
LOW PASS BIUTLER
RX PL/DPL |
MAIN MICROCOMPUTER
U4001B
LATCH
SIDETONE
Qi7.1:3
Q1720
ALERT TONE
U4Q@Q2 (004)
PL/DPL SELECT U4007
Pee ed
PEYHICH PASS
Soe tek MAIN BRD
Q1708 eke LE RED VOL CONT HI
Q1714
DISC AUDIO MUTE
AMP
Q1709
Quiet GATE (U1702-PAQ0)
Q350
RX OPT SUMMER
OPT PLAY FLAT GATE
(U1702-PC5)
© AMP DISC AUDIO
OUTPUT
| O( FOR OPTION USE)
RX AUDIO MUTE
(U1702-PC7) PS
US5Q0A
58
i ieee >—_I
DIGITAL VOL SECONDARY MuTE AUDIO AMP SPEAKER
CONTROL GATE
FILTERED AUDIO
——
FILTERED AUDIO
QUTPUT
—O
Ol FoR OPTION USE)
Figure 4-2
Receiver Audio Block Diagram
4-7/4-8
TX AUDIO
INPUT
(FOR OPTION USE)
TO CONTROL HEAD
(HC05-PB4)
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
PL/DPL REF MOD T0
SYNTH
veo MOD 10
SYNTH
IDC MUTE GATE
Figure 4-3
Transmitter Audio Block Diagram
4-9/4-10
: SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
3 AND CABLE KITS
: SECOND MICROCOMPUTER
U1702 (ANALOG BOARD) |
PA4 PAT PA2
ONE GENERATOR D/A
TO CONTROL HEAD
(HCO5-PB4) SINGLE/DTMF
PL/DP
TONES Sea
TONE
BULIER
ENCODE
Qi usel TX TONBSGATE c LOW PASS
Q1721 FILTER
MIC AUDIO
EN
PRE -
OF Te tex
Pe CE ED
GATE
PL/DPL VCO
be PL/DPL REF MOD 10
9. 6T SYNTH
eS | ips vco_IN 0326 | VCO MOD 7
YNT
IDC MUTE GATE rere
ORT ex SAUDT'O IDC AUDIO
Ok BUS AUDIO TX OPT SUMMER
TX AUDIO
INPUT
(FOR OPTION USE)
LIMITER SE eC Ay Rise mata ca EG
OPT SLXSE LAT
GATE
ileiahes
Figure 4-3
Transmitter Audio Block Diagram
4-9/4-10
TO J2200
ON REMOTE
INTERFACE 4
BOARD
16
17
NOTES:
1
ae
SHIELD
SHIELD
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
Remote
J 4700
eels
SNL ce eae ceded ; pevectnscs-orgesin he a |
FILTERED AUDIO BLK 9
MIC AUDIO WHT 3
VOL CONT RETURN RED 4
jes ohne? Wem lea CRN Se hateer - ils
BATT+ ORG 5
+8V BLU 7
GROUND > SEE NOTE “1” WHT /BLK 8
LOGIC GROUND VKN4140A RED/BLK y
SENG I eee Le 20-CONDUCTOR CABLEJ === ssN/C ___}na
BUSY IN SHIELD 2 BLU/WHT ii
HANG UP BLK /RED ho TO P4700 ON
BUS WHT/RED | REMOTE CONTROL
meres eee oe fh Ven ee ee HEAD MICROCOMPUTER
Ne NiCd BOARD
LN ani
Nit N/C ts
SW BATT+ BLK /WHT 7
[parts RED/WHT he
GROUND GRN/WHT 19
| GROUND GRN/BLK bo
| POWER SWITCH ORG/BLK i
| LOGIC GROUND BLU/BLK 2)
RESET ORG/RED Re
oe ee 2 BLU/RED D4
Wc PTT RED/GRN bs
1 1S CONNECTED TO PIN 19 (GROUND)
2 1S CONNECTED TO PIN 22 (LOGIC GND)
parts list
VKN4140A 17 FT REMOTE CONTROL CABLE
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
3000053M02 17 FT REMOTE CTRL CBL
Figure 4-4
Control Head Cable
4-11
SECTION 4. RADIO FUNCTIONAL BLOCK DIAGRAMS
AND CABLE KITS
ANALOG
BOARD
T0
INTERFACE ==
Figure 4-5
FAST SQ) PRESET ji9:
J1701
J3
52
|
17|WHT-BLU
4 [ORG
92[YEL-ORG
i
1 [BLK
fouenl
16 {WHT-GRN
19 |WHT-BRN
15{WHT-YEL
14|WHT-ORG
oo nt nw F® WH —
YEL-GRN
WHT-VIO
GND
IDC AUDIO
DEGe milan
WIC AUDIO EN
VCO IN
I6\V
DISC AUDIO
HI/LO PWR
PL FILT AUDIO
SIDETONE EN
SQ NOISE
t=. 10 MAIN BOARD
18 12 |SQ DECISION
24{VEL-BLU 13. |SLOW SQUELCH
2@{YEL-BRN 14 |SLOW SQ PRESET
21|YEL-RED 15 |DATA IN
3 [RED 16 |PL/DPL REF
2 |BRN 17 |OPTION TX AUDIO
18 |SIDETONE
v10 19 |EXT ALARM
BLU 20 |PL/DPL vco
13[WHT-RED 21 |4.8V
11 [WHT -BLK 22 |IGNITION/SPARE 4
P380
5 Eco Fee SLC aa
6 LGRN 2 |HANG UP
TO WAIN BOARD
3. |N/c
g [GRY 4 |WIC AUDIO
_—s ie
r
parts list
VKN4147A INTERNAL RADIO CABLE
REFERENCE | MOTOROLA
SYMBOL ~- PART NO. DESCRIPTION 80113
0900075M03 FEM CONNECTOR IDC 6 PIN
0900075M10 CONNECTOR FEM IDC 24 PIN (2)
2284835F01 KEYING PIN WHITE (4 used)
Wire, PVC
3010286M10 #26 STR WHITE
3010286L62 #26 STR WHITE
3010286L83 #26 WHT-ORG
3010286L75 #26 STR YEL-BLK
3010286L61 #26 STR YEL
3010286L69 #26 STR VIO
3010286L68 #26 STR BLU
3010286L77 #26 STR YEL-GRN
3010286L81 #26 WHT-BLK
3010286L99 # 26 WHT-VIO
3010286L64 # 26 STR WHT-RED
3010286L86 # 26 STR WHT-BLU
3010286L85 # 26 STR WHT-GRN
3010286L84 # 26 STR WHT-YEL
3010286M11 # 26 STR RED
3010286L60 #26 STR ORG
3010286L67 # 26 STR BLK
3010286L66 #26 STR BRN
3010286L92 # 26 STR YEL-ORG
3010286L93 # 26 STR YEL-BLU
3010286L70 #26 STR GRY / 7
3010286L82 #26 STR WHT-BRN
3010286L76 #26 STR YEL-RED
Radio Set Internal Cable
4-12
(A) MOTOROLA LIMITED
Communications Division
SECTION 5.
CONTROL HEAD
5.1 CONTROL HEAD
The Control Head contains two boards; the
Control Head Display Board and the Control Head
Microcomputer Board.
The main functional blocks of the Control
Head are highlighted in Figure 5-1.
Schematics which support the discussion
below are inserted at the end of this section.
5.2 CONTROL HEAD DISPLAY
BOARD
(Figures 5-2, 5-3 and 5-4)
The Display Board contains the following
major blocks;
e@ LED indicators
@ Vacuum Florescent Display (VFD)
®@ Keypad
Voltage requirements for the display board are
+5V, +8V and +42V. These three voltages are
obtained from the Control Head Microcomputer
Board.
The microphone connector (J4200) contains all
needed microphone connections as well as serial bus
lines BUS+ , BUS- and the BUSY line from the
control head microcomputer. These latter lines
allow the radio EEPROM to be reprogrammed
without opening the radio. In addition, the control
head and / or radio can be system tested with an
external serial bus controller.
5.2.1 LED Indicators
Indicator LED’s DS4201 to DS4209 and
DS4216 are controlled by commands on the serial
bus from the radio microcomputer. The LED’s are
not controlled directly by the keys beside them on
the control panel. Dimming is accomplished by
software pulse width modulation of the LED driver
transistors. Four dimming levels are selectable by
using the dim key : full on, dim 1, dim 2, full off.
5.2.2 VFD
The 8 character VFD (vacuum florescent
display) is multiplexed such that only one character
is selected at any given time. The characters are
refreshed at 250 Hz. The display driver IC’s U4200
and U4201 are simple serial to parallel converters
with a high voltage output stage. This high voltage
(42 volts) comes from the high voltage switching
generator residing on the control head
microcomputer board.
A typical display cycle for the VFD is:
1. The control head microcomputer disables the
VFD driver by making W4200-20 (strobe)
high, thus turning off the display.
2. The microcomputer loads serial data into the
display drivers (U4200, U4201) utilizing
W 4200-22 (clock ) and W4200-21 (data ).
3. The microcomputer then enables the new data
to be displayed by making W4200-20 (strobe)
low. Dimming is accomplished by software
pulse width modulation of the W4200-20
(strobe) line.
Backlight LED’s DS4210 to DS4215 provide
illumination for the keys in dim light. The
backlights are not dimmed but are on at all times
except at the full off dimming level.
5-1
SECTION 5. CONTROL HEAD
5.2.3 Keypad
The control head keys each send a signal to the
control head microcomputer by grounding two
unique lines of the six available (W4200-27 to 32).
The microcomputer debounces and decodes a
keypush and sends this information to the radio via
the serial bus.
5.3 CONTROL HEAD
MICROCOMPUTER BOARD
(REMOTE MOUNT VERSION)
(Figures 5-8 to 5-10)
The Dash Mount and the Remote Mount
Control Head Microcomputer Boards are similar.
They contain the following major circuits:
® Volume control
® On-off switch
® Mode (channel) selector switch
® Microcomputer
® Bus interface
© Watchdog timer
® High voltage supply
5.3.1 On-Off, Volume
The on-off volume switch controls a power
transistor in the main radio chassis which provides
power to the radio. The radio then generates the
+8 volts required by the control head. The volume
control pot supplies a 0 - 5 volt DC signal to pin 4 of
plug P4700 which is then digitized by the radio and
used to operate a digital volume control IC.
5.3.2 Mode Selector Switch
The rotary mode selector switch is connected
to the control head microcomputer via pins 19, 20
and 21 on U4700. The microcomputer determines
the rotation direction (up or down) and sends this
information to the radio via the serial bus.
The +5 volt source is provided by U4701 pin 1,
SOIC 5 V regulator.
5.3.3 High Voltage Supply
The 42 volts required by the VFD is generated
by the high voltage switching generator. The 555
timer (U4704) along with transistors Q4712 and
Q4713 form a chopper which feeds step-up
transformer T4700. The diode bridge consisting of
CR4704 to CR4707, rectifies the output and
provides approximately + 42 V. This generator also
produces a filament voltage of 2.3 Vac biased at 5.6
V by zener VR4710. To light a particular segment,
the anode and grid of the VFD are made 36 volts
higher (42 V - 5.6 V) than the filament.
5.3.4 Watchdog Timer
The power up/watchdog reset circuit comprises
comparator U4702A, SCR Q4701 and associated
circuitry. Upon power up the output of the
comparator goes low and then high, thereby
resetting the microcomputer (U4700). Thereafter,
under normal circumstances, this circuit must be
constantly “tickled” by the microcomputer to keep
the comparator output high so that the
microcomputer is not reset again.
5.3.5 Bus Interface
The Bus+ and Bus- lines comprise the serial
bus. These two lines along with the BUSY line
control all comunication between the control head,
the radio and any other microprocessor controlled
option which might be added. The Bus+ and Bus-
lines form a differential pair with 5 volts between
them (when one is high the other is low). These two
lines form a bidirectional data path between the
control head, radio and other options. The BUSY
line is idle (U4700 pins 39 and 41 are high) when
the control head is not sending a message. When a
message is to be sent, the microcomputer causes
BUSY to go high (U4700 pin 25 pulls low).
When trouble shooting a microcomputer board
for a suspected serial bus fault, BUS+,BUS- and
BUSY may be easily tested. Directions for this test
are located on the schematic diagram of the Control
Head Microcomputer Board. (both the dash and
remote mount versions)
5.3.6 Other Information
The Microphone PTT and HANGUP lines are
read, the information encoded and sent as a serial
bus message to the radio.
5.4 CONTROL HEAD MICRO-
COMPUTER BOARD (DASH
MOUNT VERSION)
(Figures 5-5 to 5-7)
The Dash Mount Control Head Microcomputer
Board is similar to the Remote Mount Control Head
Microcomputer Board. The differences are
described below.
1. The bus interface circuit for the Dash Mount
Control Head Microcomputer Board becomes
SECTION 5. CONTROL HEAD
Rx DATA and Tx DATA instead of BUS+ and
BUS-.
2. The Dash Mount Control Head Microcomputer
Board does not contain a 5 V regulator.
3. The Dash Mount Control Head Microcomputer
Board does contain an 8 V regulator (U4405).
The 8 V regulator for the Remote Mount
Control Head Microcomputer Board resides on the
Remote Interface Board.
5-3/5-4
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INDICATORS ]
|
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J 4200
CONTROL HEAD
CABLE
SECTION 5. CONTROL HEAD
P2200
TO J2200
ON REMOTE
[ INTERFACE
BOARD
Figure 5-1
Control Head Block Diagram
5-5/5-6
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; SECTION 5. CONTROL HEAD
DISPLAY BOARD REMOTE MOUNT MICROCOMPUTER BOARD
r = = a =
FLEX )W4200 P 4700 ,J4700 P2200
Walpole AN. Has | RESET ESET
fas SUPPLY ? INVERT
i ne Bus +
e- :
Maes
DISPLAY
AND
BACKLIGHT
* WATCHDOG
e = ee TIMER } |
yay L.E.D.
INDICATORS DRIVERS : PES DE DATA
_LDISPLAY DATA
MICROCOMPUTER
KEYPAD peilias. KEYPAD DATA d
| 5V
+B8V
SV
lero
|
| TO J2200
CONTROL HEAD ON REMOTE
RaeE [INTERFACE
BOARD
1
]
LOGIC GND
LOGIC GND
GROUND
GROUND
GROUND
J 4200
MIC P
HANG UP. _
MIC AUDIO |
MIC
CONNECTOR
SW A+
SW A+
SW A+
-
CHANNEL ACT
| TX BUS AUDIO
SPARE 2
[RX BUS AUDIO
5V AMP DISC AUDIO
lear = eel
CHANNEL
SELECTOR
SWITCH
ROTARY
VORUME, | p——pesetaa
CONTROL
FILTERED ANDIO
VOL CONT RETURN
POWER SW
- ON/OFF
SWITCH
we : BATT +
BATT +
Figure 5-1
Control Head Block Diagram
-5-5/5-6
FE
ag
Bp/w - 7
a
SHOW tail GD
; Display Board - Board Details
5-7/5-8
.
§ swage &
> VR
SHOWN FROM SOLDER SIDE
SOLDER SIDE - RED
COMPONENT SIDE - GREY
SHOWN FROM COMPONENT SIDE
SOLDER SIDE - RED
COMPONENT SIDE - GREY
31H00193M-O
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oe
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SECTION 5. CONTROL HEAD
aoe:
ae 5-2
Display Board - Board Details
5-7/5-8
=
SECTION 5. CONTROL HEAD
FLEX CONNECTOR
¥4200
11 +42V
eos |
|
O12 FILAMENT 2
ee R4239
470
BUSY
(YELLOW)
(DS 4209
18 PAO 4208
1102
cle Ns» je3v
EYPAD | BACKLIGHTS
Rieke |
R4242 R4243 R4244 R4245
330 330 330 330
ES
DS4212 084214
~ ~
DS4213 DS4215
= S
cue
41L02
17. PA4 pee ‘
oe K
Pullcieee AS ae
23. PAG
O--=--- o—
24 PAT
aa }
26 PBO | 6 N/C
one aon (| vec2 4
pe eee ee 997 3 Ae5y
R4U4200
15
5 Q6 Q7 G8 Q9 010011012
13 (14 117 118 119 120 11 2
Pelion MOSI | Se
Doak
O---=--- Oo _—_}
eat Bien |4 (6 [9 [11 [13 [15 |g 20
ome Cee Ge KG
| v/
yeay | AV
8 | /\
@------ Vie
VA \
+5V | ]
a ‘ | 1G 2S
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[ee
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Riese el
ee eee
30 Pc4 ee
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O------ et
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eee CEN =|
13
x a |
oo ISS
pes Sa uBUSis
Pe eS,
ote HAUL | Figure 5-3
O------ oo] . . e
Display Board Schematic Diagram
5-9
FLEX CONNECTOR
SECTION 5. CONTROL HEAD
W4200
yee +42V
7 —— ae |
5 as 7
9 FILAMENT 1 dds
12 °FILAWENT 2 7 ? ? |
R4220 R4221 R4222 R4223 R4224 R4225 R4226 R4227 R4228 R4229 R4230 R4231 R4232 R4233 R4234 R4235 R4236 R4237 R4238 R4239
470 470 470 470 470 470 470 470 470 470 470 470 470 470 470 470 - 470 470 470 470
RED). rue (ga, rau 2 TONE 1 PRIORITY SCAN PROGRAM bernie. ) heer
ED (RED) (RED) (RED) (RED) 7 t
054201 SEDs 4216 SBS 4202 854203 DS 4204 0s 4205 05 4206 Ss 4207 <5 4208 ss 4209
18 | PAO 4.7K 04208
19 PAI 4.7K es
ja Gin} -
Ane UE bl KEYPAD | BACKLIGHTS
po eae = 4.7K eae 47K )
R424 e gos PNT Ee? R4240 R4241.24242 R4243 R4244 R4245
330 330 330 330 330 330
ees PA3 | 4.7K ate 47K WZ
= R4212 degogs Parte eh? DS4210 084212 084214
04204 47K 74 y ‘. oe
poate pS4211 Y) 084213 0S4215
| | 4. 7K ty ~ —
| 4.7K 04202 47K tee pag7 PAt hoz
17. PA4 a 41102 '
Os R4206 dp4oq7 47K
4.7K poet 47K b ww
+ +5V |
hen 47K cls t
41102 16 6 16 ,
R4203 fen : : Rare
47K eae SERTAL OUT 3 DATA. 5N ings é
a 3 29M73 +5Y 3 29W73 +5V
——1—5 | STROBE U4201 ———77 ST Rowe U4200 8
R4248 R4250 eee ork 15 CLOCK LS
47K 47K Qi 02 0304 05 06 O7 08 09 O10011012 | Q1 92 03 O04 G5 06 Q7 a9 _a10Q11012 |
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a /\ | /}
] A pNoie /
We 8-CHARACTER VFD INAS
E/, m DS4200 | JI\
+5V e . c he oe
Pid eDP ia ans) |
° o e © ———_
8G 16 P i
R4251 R4252 R4253 R4254 R4255 R4256
47K 47K 47K 47K 47K 47K |
28, PCS sal a a a a sat
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L__500——_@®
FRONT PANEL KEYPAD | at in | a 2,
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5. ov 5. 6V 5. 6V 5. 6V 5. 6V 5. 6V Wie eieeo a
VR4206* VR4207 VR420BP VR42Z09- VR42104" vRa2ti 54200
= P4200
3 _ HANG UP a Wa WA VY AZ. nA, _|5 | HANS UP MIC PLUG
eee 5. 6V 4202 (END VIEW) PIN 1
VR4202 de:
~* | cooeesee | WIRES
ny ee
2 Wicapia 4 WTC PTT
O------ o—
: 5. 6V et ee
1 VR4204 F
ee _ ok 7 |LocIc GND
ae al 6300659M-O
2 |BuUS+
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pees BU Se 8 |BUS-
7 BUSY (eae 1 |BUSY
27: MIC AUDIO Fi
6 =
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4 GROUND
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VR4200 es VR4201 ba eee oa VR4205 ee
SECTION 5. CONTROL HEAD
parts list
VLN4667A DISPLAY BOARD
REFERENCE MOTOROLA REFERENCE. MOTOROLA
SYMBOL PART NO. DESCRIPTION SYMBOL PART NO. DESCRIPTION
R4214 0600015M65 4.7K
Capacitor, chip, pf R4215 0600015M89 47K
R4216 0600015M65 4.7K
C4200 2111031A51 330-5-NP0-50V R4217 0600015M89 47K
C4201 2111031A51 330-5-NP0-50V R4218 0600015M65 4.7K
C4202 2111031A51 330-5-NP0-50V R4219 0600015M89 47K
C4203 2111031A51 330-5-NPO-50V R4220 0600015M41 470
C4204 2111031A51 330-5-NPO-50V R4221 0600015M41 470
C4205 2111031A51 330-5-NPO-50V R4222 0600015M41 470
R4223 0600015M41 470
LED R4224 0600015M41 470
R4225 0600015M41 470
DS4200 7200004M01 VFD 8 CHARACTER R4226 0600015M41 470
DS4201 4808111B09 RED R4227 0600015M41 470
DS4202 4808111B09 RED R4228 0600015M41 470
DS4203 4808111B09 RED R4229 0600015M41 470
DS4204 4808111B09 RED R4230 0600015M41 470
DS4205 4808111B09 RED R4231 0600015M41 470
DS4206 4808111B09 RED R4232 0600015M41 470
DS4207 4808111B09 RED R4233 0600015M41 470
DS4208 4808111B09 RED R4234 0600015M41 470
DS4209 4808111B10 YELLOW R4235 0600015M41 470
DS4210 4880246K04 GREEN R4236 0600015M41 470
DS4211 4880246K04 GREEN R4237 0600015M41 470
DS4212 4880246K04 GREEN R4238 0600015M41 470
DS4213 4880246K04 GREEN R4239 0600015M41 470
DS4214 4880246K04 GREEN R4240 0600015M37 330
DS4215 4880246K04 GREEN R4241 0600015M37 330
DS4216 4808111B10 YELLOW R4242 0600015M37 330
R4243 0600015M37 330
Receptacle R4244 0600015M37 330
R4245 0600015M37 330 -
J4200 0900078M01 8PIN (MICROPHONE) R4247 0600015M89 47K
R4248 0600015M89 47K
Transistor R4250 0600015M89 47K \
R4251 0600015M89 47K .
Q4200 4880141L02 NPN SOT-23 MMBT3904 R4252 0600015M89 47K
Q4201 4880141L02 NPN SOT-23 MMBT3904 R4253 0600015M89 47K
Q4202 4880141L02 NPN SOT-23 MMBT3904 © R4254 0600015M89 47K
Q4203 4880141L02 NPN SOT-23 MMBT3904 R4255 0600015M89 47K
Q4204 4880141L02 NPN SOT-23 MMBT3904 R4256 0600015M89 47K
Q4205 4880141L02 NPN SOT-23 MMBT3904 R4257 0600015M49 1K
Q4206 4880141L02 NPN SOT-23 MMBT3904
Q4207 4880141L02 NPN SOT-23 MMBT3904 e
Q4208 4880141L02 NPN SOT-23 MMBT3904 Integrated Circuit
Q4209 4880141L02 NPN SOT-23 MMBT3904
Q4210 4880141L02 NPN SOT-23 MMBT3904 U4200 5183629M73 VFD DRIVER SN75512A
U4201 5183629M73 VFD DRIVER SN75512A
Resistor, chip, 5%, 1/8 W
Zener Diode
R4200 0600015M65 4.7K
R4201 0600015M89 47K VR4200 4880140L07 CHIP 5.6V MMBZ5232
R4202 0600015M65 4.7K VR4201 4880140L07 CHIP 5.6V MMBZ5232
R4203 0600015M89 47K VR4202 4880140L07 CHIP 5.6V MMBZ5232
R4204 0600015M65 4.7K VR4203 4880140L07 CHIP 5.6V MMBZ5232
R4205 0600015M89 47K VR4204 4880140L07 CHIP 5.6V MMBZ5232
R4206 0600015M65 4.7K VR4205 4880140L15 SOT-23 MMBZ5240 10V
R4207 0600015M89 47K VR4206 4880140L07 CHIP 5.6V MMBZ5232
R4208 0600015M65 4.7K VR4207 4880140L07 CHIP 5.6V MMBZ5232
R4209 0600015M89 47K VR4208 4880140L07 CHIP 5.6V MMBZ5232
R4210 0600015M65 4.7K VR4209 4880140L07 CHIP 5.6V MMBZ5232
R4211 0600015M89 47K VR4210 4880140L07 SOT 5.6V
R4212 0600015M65 4.7K
R4213 0600015M89 47K Jumper
W4200 3000051M01 FLEX, 32 PIN
Non-referenced item
7500030M01 VFD PAD
Figure 5-4
Display Board Parts List
5-10
SECTION 5. CONTROL HEAD
SHOWN FROM S
Dash Mount Control Head
Microcomputer Board
-Board Details
5-11/5-12
SECTION 5. CONTROL HEAD
parts list
VLN4667A DISPLAY BOARD
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
Capacitor, chip, pf
C4200 2111031A51 330-5-NP0-50V
C4201 2111031A51 330-5-NP0-50V
C4202 2111031A51 330-5-NPO-50V
C4203 2111031A51 330-5-NP0-50V
C4204 2111031A51 330-5-NPO-50V
C4205 2111031A51 330-5-NPO-50V
LED
DS4200 7200004M01 VFD 8 CHARACTER
DS4201 4808111B09 RED
DS4202 4808111809 RED
DS4203 4808111B09 RED
DS4204 4808111B09 RED
DS4205 4808111B09 RED
DS4206 4808111809 RED
DS4207 4808111B09 RED
DS4208 4808111B09 RED
DS4209 4808111B10 YELLOW
DS4210 4880246K04 GREEN
0S4211 4880246K04 GREEN
0S4212 4880246K04 GREEN
DS4213 4880246K04 GREEN
DS4214 4880246K04 GREEN
DS4215 4880246K04 GREEN
D0S4216 4808111B10 YELLOW
Receptacle
J4200 0900078M01 8PIN (MICROPHONE)
Transistor
Q4200 4880141L02 NPN SOT-23 MMBT3904
Q4201 4880141L02 NPN SOT-23 MMBT3904
Q4202 4880141L02 NPN SOT-23 MMBT3904 ~
Q4203 4880141L02 NPN SOT-23 MMBT3904
Q4204 4880141L02 NPN SOT-23 MMBT3904
Q4205 4880141L02 NPN SOT-23 MMBT3904
Q4206 4880141L02 NPN SOT-23 MMBT3904
Q4207 4880141L02 NPN SOT-23 MMBT3904
Q4208 4880141L02 NPN SOT-23 MMBT3904
Q4209 4880141L02 NPN SOT-23 MMBT3904
Q4210 4880141L02 NPN SOT-23 MMBT3904
Resistor, chip, 5%, 1/8 W
R4200 0600015M65 4.7K
R4201 0600015M89 47K
R4202 0600015M65 4.7K
R4203 0600015M89 47K
R4204 0600015M65 4.7K
R4205 0600015M89 47K
R4206 0600015M65 4.7K
R4207 0600015M89 47K
R4208 0600015M65 4.7K
R4209 0600015M89 47K
R4210 0600015M65 4.7K
R4211 0600015M89 47K
R4212 0600015M65 4.7K
R4213 0600015M89 47K
Figure 5-4
Display Board Parts List
5-10
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
R4214 0600015M65 4.7K
R4215 0600015M89 47K
R4216 0600015M65 4.7K
R4217 0600015M89 47K
R4218 0600015M65 4.7K
R4219 0600015M89 47K
R4220 0600015M41 470
R4221 0600015M41 470
R4222 0600015M41 470
R4223 0600015M41 470
R4224 0600015M41 470
R4225 0600015M41 470
R4226 0600015M41 470
R4227 0600015M41 470
R4228 0600015M41 470
R4229 0600015M41 470
R4230 0600015M41 470
R4231 0600015M41 470
R4232 0600015M41 470
R4233 0600015M41 470
R4234 0600015M41 470
R4235 0600015M41 470
R4236 0600015M41 470
R4237 0600015M41 470
R4238 0600015M41 470
R4239 0600015M41 470
R4240 0600015M37 330
R4241 0600015M37 330
R4242 0600015M37 330
R4243 0600015M37 330
R4244 0600015M37 330
R4245 0600015M37 330
R4247 0600015M89 47K
R4248 0600015M89 47K
R4250 0600015M89 47K
R4251 0600015M89 47K
R4252 0600015M89 47K
R4253 0600015M89 47K
R4254 0600015M89 47K
R4255 0600015M89 47K
R4256 0600015M89 47K
R4257 0600015M49 1K
Integrated Circuit
U4200 5183629M73 VFD DRIVER SN75512A
U4201 5183629M73 VFD DRIVER SN75512A
Zener Diode
VR4200 4880140L07 CHIP 5.6V MMBZ5232
VR4201 4880140L07 CHIP 5.6V MMBZ5232
VR4202 4880140L07 CHIP 5.6V MMBZ5232
VR4203 4880140L07 CHIP 5.6V MMBZ5232
VR4204 4880140L07 CHIP 5.6V MMBZ5232
VR4205 4880140L15 SOT-23 MMBZ5240 10V
VR4206 4880140L07 CHIP 5.6V MMBZ5232
VR4207 4880140L07 CHIP 5.6V MMBZ5232
VR4208 4880140L07 CHIP 5.6V MMBZ5232
VR4209 4880140L07 CHIP 5.6V MMBZ5232
VR4210 4880140L07 SOT 5.6V
Jumper
W4200 3000051M01 FLEX, 32 PIN
Non-referenced item
7500030M01 VFD PAD
/ ‘ SECTION 5. CONTROL HEAD
eoe
eae
: esse Be
. . ee S
=
Sa oe Sd ee SS Bes
=
>
996900000
Oo
6 ®
vR4407
fe
SHOWN FROM SOLDER SIDE SOLDER SIDE - RED
SHOWN FROM COMPONENT SIDE SOLDER SIDE - RED
COMPONENT SIDE - GREY Figure 5-5
Dash Mount Control Head
31H00203M-0 Micr ocomputer Board
-Board Details
9-11/5-12
TO P366 ON
FRONT PANEL
INTERCONNECT |
BOARD
TO P365 ON
FRONT PANEL
INTERCONNECT |
BOARD
TO P366 ON
FRONT PANEL
INTERCONNECT
BOARD
ROTARY VOLUME/ON
4200
11
al Ey GG aa Sia ch oes
FLEX CONNECTOR W441 :
ran t LAWENT 1], 9
LAMENT 12
VR4404 rev im > = ce S
VR4405 +5V een
47 |
6V
L574
J366 Bee
FILTERED AUDIO | 20|_N/C
VOL CONT RETURN
SW BATT+
SW BATT+
BATT+
BATT+
4. BV
9. GY.
AMP DISC AUDIO
SW A+
GROUND
GROUND
LOGIC GROUND
LOGIC GROUND
SPARED 7
POWER CTRL
RX OPTION SUMMER
DISC AUDIO
RX BUS AUDIO} 18} —N/C
SPARE 2
TX BUS AUDIO
21
--+--- °
22
--=-- °
20
oftee- °
N/C
-———— 8
---=-- °
+5V
+5V SOURCE ni
---Fe- °
+
+5v | 1 tay ig
+] 04473
20 er PCS he
4.7K) 5
B
RRC eee
RX DATA | 11 4
1 PC3 oe
SPARE 3 | 2 N/C
SCK SNC PC2 ae
MIso| 4[-_N/c
CHANNEL ACTIVITY] 51 _N/c See bs
Me TCEGG"| pias Ne &
SPARE 1 | 101 _N/c
Pce 27
X DA K 8 -———_o------- °
RX wDC600| 121 _N/c
WOST] 151 _N/c |
SS] 16. N/c 4437-0 HANG UP 3
3sz | 17|__w/c Saga 7p Pane UP caine °
SV CONT | 18} N/C
}
|
| ssape
BUSY L Wit PTT
; ‘ ia + = TANT aS
MIC AUDIO
SECTION 5. CONTROL HEAD
FLEX CONNECTOR
20mS
ee
er a
WATCHDOG
TICKLE
IF TICKLE IS DISABLED BY GROUNDING
GATE OF Q4400:
120mS
pire thine
6OmS
RESET 0V
4 PU
sy 2 LSES
SCK
500uS
aS
PC7 ev
DATA (MOSI) IS VALID ON \ EDGE OF SCK
j~e—— 15uS -
aa 7. 5uS =
OV
JUMPER TABLE
JU4400 | NORMALLY OUT
JU4401 | NORMALLY OUT
JU4402 | NORMALLY OUT
JU4403 | NORMALLY OUT
JU4404 | NORMALLY IN
JU4405 | NORWALLY OUT
[204406 | NORWALLY IN
6300666M-O
SEE FIGURE 5-6 (SHEET 2) FOR
SERIAL BUS FAULT TEST
Figure 5-6
Dash Mount Control
Head Microcomputer
Board Schematic
Diagram (Sheet 1)
5-13
ROTARY VOLUME/ON-OFF SWITCH
ROTARY SELECTOR SWITCH
HIGH VOLTAGE SWITCHING GENERATOR
SECTION 5. CONTROL HEAD
Ll jr ae MER Sa nar iO UM eae 8 ey Se a NI I SO A ae LNs VIL EO ib ple a eee ae sy ee oe eee 4
et] oe al ) sae se
CW $4400) | R4452 |FLEX CONNECTOR
2K ON VW | w4700
1 | | 14400 5
ea eee ae eee eel Eh | | Bib
$ 4 $ L—__} | 14425 |
FLEX CONNECTOR W4401 2 4 ‘5 53 FLEX 4402 | | : ™1 uF |
us H CONNECTOR
° °
N/C a if leet | FILAMENT Vhs ek ee .
vy v VR4401 | (a FILAMENT 2| Te?
VR4404 es 5. 6V | void |
VR44
boa Saat +5V | QOtur 04484 164465 en
eat etre +5V | ; iE a iol .1uF A) a je 20mS —__pol
|
330pF 7s APssank | pesy 10mS
LY pas is 330p sh rT o-18., WATCHDOG
J366 jo442s | TICKLE "7
———
FILTERED AuDIO | 201-N/c mk r £4439 - emaeee
OS CON M eeaey e | ee S PRs Om
VOL CONT RETURN oa nT Saar: 04408 (hor peg
SY BATT+ aS 10SC lace 41101 | IF TICKLE IS DISABLED BY GROUNDING
SW BATT+ 1MEG 3 Inve 4 PA2 pies GATE OF 04400:
18 ° a 120mS —_pol
| dee ee CR4410 FCR4409 FcR 4408 | 4v ,
104413 4414 ‘ | PAS 10
V SOUR 4. OU MH Z
a: +8V SOURCE | 20pF 7 z 20pF ipphus 2 Wits Ved OO aie Oe en ese eee ° = 60mS
Ply ! MZ 43/870 PB2 JU4400 ces JU4402 , RESET 29 ——
40 le
4. BV | +5 N/C PAO eELEt
9. 6V +] 64403 | 11 Sieer
AMP DISC AUDIO 330uF | R4401 PAI Crass 24 PULSES
2 =
TO P366 ON | ak TRO pare heresssrt
FRONT PANEL ; | sR4404 ahha cee jp ee es ee ee ee _S330PF?
5 S¥PAS 1 1SE-=_N/C I) 4p ems PAS f
INTERCONNECT 20 UGE PA4 17 CK ev. ns Hl
BOARD GROUND | 2 a Seer eee pag {8 Pomel a SCK
GROUND | 21 | 330FF eae Uae PF PAS¢ x ree: boas apes eee
oes CR4412 ats aad U6 PAG 23 vo j
GROUND] 11 | Le C4427 PA6 6 Rea e =
LOGIC - = +5V Seta fe C445 cS 50uS ——
LOGIC GROUND] 12 R4402 | a S arerite [330PF? PAd eeas east E L>
+5V 47K 1K | 19|pg5 pael!s RIE PB2 26
a ae ee ee ee SC ee
SPARE 7] 5 N/C R4405 R4450 Bevrr ~Sygpee a ATA (MOSI) IS VALID ON EDGE OF SCK
POWER CTRL | 8 N/C POWER UP/WATCHDOG RESET 47K BIRT a TCMP ppt [4 beqasi ag is 3 a2 ( ae
RX OPTION SUMMER| 161 N/C aes Ptr i ——»|
DISC AUDIO 171 NSE +5V 330PF G 15uS
RX BUS AUDIO| 18|_N/c ere +h ee eA “ae ©) BV
eat OS 1
ra aus avoto) 22t—v/¢ a 7K ed Wea ras(crs sCK 22 | =] = oe ee
4. 7K ; sige Ll Reser (PD4) SCK [36 —————=o= ev
AoE S JU4403 ie U4400 PC7 PCTS ae
5 @5A01 Aes C4407 Q@1A02
tae UU4404 ,
5V (
044028 C4406 : Ae O1UF | +5V -
: good =z.
o |
JU4405 | R4437
+5V +5V fe R4414 cea lb (PD2) MISO 47K +5V ; JUMPER TABLE
47% ai JU4400@ | NORMALLY OUT
+5V SOURCE |
R4419 <A (PD5) 35 - - —|
| €4409 2. 2K SEES es | Ju4401 | NORMALLY OUT
sv} 4 Ay po shai +8V JU4406 |
+] 04473 hese 41101 R4418 Wie ress PCS 28 [sussor | NORMALLY OUT
> --==-- °
22uF aeons es | R4420 O1uF salooayas JU4403 | NORMALLY OUT
eke . O1uF 100 | | 33OPF i —--
4.7K) Buss ; | | JU4404 | NORMALLY IN
BUS- 4402A Saek ped l27 | PC4 med) Ie [2Uss8s NORMALLY OUT
See ee es eee ee!
Reale ie Perry [vases |} NORWALLY IN
4.7K RX DATA 32 PDO) ESS SOR F PC3 32
RX DATA hs oe C4433 ROI ( PC3(28 Ss °
a5 10K EEE E YS esas
SPARES St) 2b _N/G 04405 pce? 29 gag eRe PC. ee
SEK 3 N/C 41102 % C4436 | Voaaa2
TO P365 ON 4402 330pr “LY | AS330PF
FRONT PANEL wihiel WS eeedts ; pci pe poy _,.29.4
INTERCONNECT | CHANNEL ACTIVITY) 5 Ah org R4424 ! ay [ Pare 6300666M-O
Tx mpceoo| 7| _N K
BOARD eed A iy ae gerd | 04404 VOX TX DATA 33/190 (P01) fg | ae aan ici Sy 1s a Ee er
+5V 4440 +5V
TX DATA 8 i {J ~350PF
A N/C DS AE Se oe | R4434
RX mDC600| 12| —1
acd ast ae | = 5y 04407 21h ee WANE Oe SEE FIGURE 5-6 (SHEET 2) FOR
SST] 164 n/c $4437 Pegs: | 94405 zaiK BUSY OUT 25} pc6 pea 7 HANG up 41L01 mee R4435
ssz | i7f w/e Serr 7 EES 2 SOND reve at | SERIAL BUS FAULT TEST
5V CONT | 18 n/c | ms 3 +5V
R4434 PD? pg3|!6 WIC P |
R4432
47K BUSY IN 41
LTCAP vss | 47K
S3ePr | | 3. 5K 4406 He af onset
| R4451
sited dl led r | R4429 R4430 abs c4438 AS
| 1K i
…[truncated]