Document text
uf
)
SE AUS
GENERAL
Current Drain —
(Using 15 Vde Supply)
2.0 W:
5.0W:
Transmit
* Receive:
* Standby:
H23BBB'
H33BBB'
400 mA
930 mA
%
H23BBU’
H33BBU'
420 mA
950 mA
70 mA
11mA
* Add 3 mA for Tone PL and 3.5 mA for Digital PL —
RECEIVER
Frequency Stability —
(-30° C to +60° C; +25° C Ref):
Channel Spacing:
Sensitivity —
20 dB Quieting:
12 dB SINAD:
Squetch/PL:
Modulation Acceptance :
Intermodulation (E1A SINAD) :
Spurious and Image Rejection:
Selectivity (EIA SINAD):
Frequency Spacing — 1 MHz
(Degradation)
20 dB Quieting: Nodeg
Nodeg 1
No deg
Spurious:
Intermodulation:
Audio Output —
(At less than 5% distortion):
TRANSMIT
RF Power Output —
H
15 Vde Ni-Cad Battery:
12.7 Vde Mercury Battery
NLN6762, NLN6936:
12.0 Vde Mercury Battery
NLN6683:
Modulation —
(+5 kHz for 100% modulation
at 1000 Hz): :
Frequency Stability —
(-30° C to +60° C; +25° C Ref):
FM Noise —
(Below +3.3 kHz deviation
at 1000 Hz):
Aydio Distortion —
(At1000 Hz, 3 kHz deviation):
Frequency Spacing —
No Degradation:
1.5 dB Power Degradation:
3 dB Power Degradation:
Copyright 1977 by Motorola, Inc.
Printed in U.S.A.
1/17/77 - DG
2.5 MHz
H23BBB'
2.0 W
1.0 W
+.0010%
(+.0005%
optional)
30 kHz
dB
75 dB
80 dB (30 kHz)
75 dB (25 kHz)
5.5 MHz
3dBdeg 5dB deg
5dBdeg 25 dB deg
5dBdeg 10 dB deg
500 mW
TER
H33BBB’
23BBU’ H33BBU’
5.0 W
2.5 W
0.8 W
16F3
.0010% - 2.0 W
(optional .0005%
2.0 W)
.0005% -5.0 W
55 dB
3%
1 MHz
2.5 MHz
5.5 MHz
MT500 SERIES “HANDIE- TALKIE”
PORTABLE FM TWO-WAY RADIOS
MODEL TYPES
H33BBB’
UNIVERSAL
H23BBU’ | H33BBU’
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
68P81012C56-0
NUMBER
OF
CHANNELS | SQUELCH
Carrier
Digital PL
OOANN |= BAIDWDOPE NNN" | “| ODO PAN NNN @ @ @ wa
Engineering Publications
8000 W. Sunrise Blvd.
Ft. Lauderdale, FL 33322
« ~ 2
DISASSEMBLY PROCEDURE
CAPTIVE
MOUNTING
SCREW & WASHER
(4 REQ)
CAPTIVE
BUSHINGS (4)
COVER
A
wiO%Set v
_
L
L
= FRONT
\ COVER
TYPICAL
FRAME KIT
CEPF-7846-0
PROCEDURE
1, TURN THE SLOTTED SCREW HEAD ON THE BATTERY COVER ONE QUARTER
TURN COUNTERCLOCKWISE AND REMOVE THE BATTERY COVER.
2. REMOVE THE BATTERY.
3. LOOSEN THE FOUR CAPTIVE SCREWS HOLDING THE BACK COVER AND
REMOVE THE BACK COVER.
. REMOVE SNAP-ON SLEEVE (OMNI-HOUSING ONLY).
. LOOSEN THE FOUR CAPTIVE BUSHINGS HOLDING THE CHASSIS FRAME TO
THE FRONT COVER.
. SEPARATE THE FRONT COVER FROM THE FRAME.
. UNPLUG THE WIRES CONNECTING THE FRONT COVER TO THE CHASSIS FRAME.
EPF-7847-O Cy
of
“NO
1D,
i
VIEWED FROM SOLDER SIDE _
OK EONS OL OYV OOO OIC LOIOO)
®SS- DEPF-7956-0
OCS-DEPF-7959-0
INTERCONNECT BOARD OPTION TIE POINTS
GROUND
SQUELCH CONTROL VOLTAGE
“PL SWITCH S401-2
“PL’’ SWITCH S$401-1
DETECTOR OUTPUT 4
TRANSMIT “PL” %
PTT (UNIVERSAL RADIOS ONLY)
RELAY COIL INPUT (UNIVERSAL RADIOS ONLY)
+7.5 VDC REGULATED
BATTERY B+
DETECTOR LIMITER OUTPUT
+7.5 VDC REGULATED (RECEIVE ONLY)
RECEIVER AUDIO PREAMPLIFIER OUTPUT
VOLUME CONTROL, R202-3
+7.5 VDC REGULATED (TRANSMIT ONLY)
ID TONE INPUT
RECEIVER AUDIO POWER AMPLIFIER INPUT
(TIE POINT WITH 19)
~ (TIE POINT WITH 18)
SPEAKER, J201-2
EPF-7877-O
C7R7 CHANNEL C8R8 CHANNEL
ELEMENT DECK ELEMENT DECK
OL -DEPF-7960-0
VIEWED FROM SOLDER SIDE
SIDE
ED (ANT. POLE) F BASIC
RG (RCVR N.C.) | PTT
HT(XMTRN.O.) | S204
RAY (PTT UNIV)
UNCn OO OG KOmtne i Ones OmOmCmOm OMG s Ole. oa0
@ “> SS-EEPF-7826-0
© (@@cs-EEPF-7827-0
@ OL - EEPF-7828-0
OPTION @OL- EEPF-7829-0
INTERCONNECT CIRCUIT BOARD DETAIL
a «= d
DISASSEMBLY PROCEDURE
CAPTIVE
CAPTIVE
BUSHINGS (4)
BATTERY
COVER
FRONT
COVER
TYPICAL
FRAME KIT
CEPF-7846-0
PROCEDURE
1. TURN THE SLOTTED SCREW HEAD ON THE BATTERY COVER ONE QUARTER
TURN COUNTERCLOCKWISE AND REMOVE THE BATTERY COVER.
2. REMOVE THE BATTERY.
3. LOOSEN THE FOUR CAPTIVE SCREWS HOLDING THE BACK COVER AND
REMOVE THE BACK COVER.
. REMOVE SNAP-ON SLEEVE (OMNI-HOUSING ONLY).
. LOOSEN THE FOUR CAPTIVE BUSHINGS HOLDING THE CHASSIS FRAME TO
THE FRONT COVER.
. SEPARATE THE FRONT COVER FROM THE FRAME.
. UNPLUG THE WIRES CONNECTING THE FRONT COVER TO THE CHASSIS FRAME.
of
“NO
EPF-7847-0
®DO@DODOHOOOODO OOOOOOQOOO
INTERCONNECT BOARD OPTION TIE POINTS
GROUND
SQUELCH CONTROL VOLTAGE
“PL” SWITCH $401.2
“PL” SWITCH S401-1
DETECTOR OUTPUT
TRANSMIT “PL” ’
PTT (UNIVERSAL RADIOS ONLY)
RELAY COIL INPUT (UNIVERSAL RADIOS ONLY)
+7.5 VDC REGULATED
BATTERY B+
DETECTOR LIMITER OUTPUT
+7.5 VDC REGULATED (RECEIVE ONLY)
RECEIVER AUDIO PREAMPLIFIER OUTPUT
VOLUME CONTROL, R202-3
+7.5 VDC REGULATED (TRANSMIT ONLY)
ID TONE INPUT
RECEIVER AUDIO POWER AMPLIFIER INPUT
(TIE POINT WITH 19)
(TIE POINT WITH 18)
SPEAKER, J201-2
EPF-7877-0
WHT-ORG RF(ANT. SIDE)
BLK (GND)
ORG RF(JACK SIDE)
BLU-WHT AUDIO (PA SIDE)
BRN AUDIO(PREAMP OUT) TO J203
WHT pietuics SIDE ) WHT (XMTR N.O.) $204
BLU AUDIO(SPKR SIDE
RED ea) SRAY (PTT UNIV)
GRAY PTT(UNIV) | mss Se
GRN "PL" SW (WIPER)
RED-WHT B+(AFTER ON/OFF SW)
BLU SPKR (HIGH SIDE)
GRN-WHT "PL" SW (CONTACT) }TO P20!
RED B+ (BATT)
WHT MIC (HIGH SIDE)
BLK (GND)
VIEWED FROM SOLDER SIDE
RED (ANT. POLE) fF BASIC
ORG (RCVR me} PTT
$203-4 <— RED- BLU
R202-3 <———_ BRN
ON-OFF
VOLUME $203-5 <—— RED
CONTROL | R202-2 <———_GRN
R20 22 Ls
ANTENNA |2202-$
JACK | jo02-2
C8R8 CHANNEL
ELEMENT DECK
C7R7 CHANNEL
ELEMENT DECK
J201-1<—BLU- GRN
SPEAKER = -
AKER {J201-3 <— BLU-WHT
J201-2 <———— BLU
ANTENNA
CONTACT
CRORCEORORONCEOROEOROsOnOCEORORORORORORO
] @ © SS-EEPF-7826-0
; © @cs-EEPF-7827-0
; J @ OL - EEPF-7828-0
R201 | OPTION @OL- EEPF-7829-0
SQUELCH CONTROL /
* MOUNTED ON SOLDER SIDE VIEWED FROM COMPONENT SIDE
VIEWED FROM SOLDER SIDE
INTERCONNECT CIRCUIT BOARD DETAIL
|
|
|
|
ts
SHOWN FROM SOLDER SIDE
HIGH POWER
RADIOS ONLY
[MiOT]
% MOUNTED ON SOLDER SIDE © $8-EEPE-7820-0
OL- EEPF -7822-0
4 0600185A65 4.7k 45% NLD6942A 2 W Power Amplifier; 150. 8-
5 0600185A57 ope eBay, 162 MHz
6 0600185A51 Ue2ek- =5% or NLD6943A 2 W Power Amplifier;
7 0600185B64 56 162-174 MHz
8 0600185B71 220 or NLD6952A 5 W Power Amplifier; 150. 8-
9 0600185Bé68 120 162 MHz
10 0600185B83 2.2K or NLD6953A 5 W Power Amplifier
ll 0600185B55 10 162-174 MHz
12 0600185C05 120k 5105177D04 IDC
13 0600185B80 RAN DIODE: See Note I
101 0600185B83 DEA 4882256C6l 5.8 V Zener
102 0600185B98 39 k CRYSTAL: See Note II
103 0600185B72 | 270 4805713B0l | 17.865 MHz
104 0600185B77 680 or 4805713B02 17.935 MHz
105 0600185B87 4.7k
ios pebbiespes si aie’.
291 1805333E01 pot., 25 k; squelch control 1483211B01 PAD, Insulator (for Q102)
202 1805370E01 pot., 25 k; volume control, 1505941D01 COVER, Shield (for U9)
includes S203 2605685B01 SHIELD, for U4
203 0600185B64 56 2605820D05 SHIELD, Coil (for Ll, L5, 1103,
204 1705787D01 39.2 +1%; 1/2 W & L107)
210 0600185B96 27k 2605820D07 SHIELD, Coil (for L2, L3, L4,
or 0600185B93 15k L6,L7, L101, & L104)
211 thru 218 1805501C04 | pot., 50k 2683379H01 HEATSINK, for Q102
3905243F01 CONTACT, Ground (for U12)
SWITCH: 7505176E01 PAD, Foam (for channel
01 4005120E01 Toggle, DPDT (2-freq. models) elements)
or 4005119E01 Rotary, 5-pos. (4-freq. models) 7505295B03 PAD, Insulator (for FL1, FL2,
or 4005043E01 Rotary, 8-pos. (6- & 8-freq. ES 8) ¥1)
models) 0105959C10 CIRCUIT BOARD (for R11 &
02 4005265E01 Micro, PTT R12)
03 --- ON-OFF, part of R202 1505894D01 COVER, Shield (for U13)
LO1 400506lLE01 Lopple, SPDT, Pia" 7505506D02 MODULE PAD (for U4)
7505506D03 MODULE PAD (for U3)
HYBRID, Encapsulated: 7505506D04 MODULE PAD (for U2)
2, 5184333G07 I-F Amplifier 7505506D06 MODULE PAD (for U6 & U13)
3 5184333G08 Low Conversion 7505506D07 MODULE PAD (for U7)
4 5184333G37 Detector 7505506D08 MODULE PAD (for U8 & U10)
5 5105177D22 Squelch
6 5105177D02 Audio Pre-Amplifier NOTES: I. For optimum performance, order replacement diodes
7 5105177D05 Audio and transistors by Motorola part number only.
8 5105177D13 Receiver Injection II. When ordering crystal units, specify crystal frequency
? 5105177D20 Regulator and Motorola part number. Gold faced FL1, FL2, and
10 5105177D19 Buffer Tripler FL3 crystal filters cannot be mixed with silver can
FL1, FL2, and FL3 crystal filters.
BASIC CIRCUIT BOARD DETAIL AND PARTS LIST
38 dB GAIN
) AT {000Hz
NOTES E&H
SPEAKER
PapAY
| U7_AUDIO PA.
J204
EXTERNAL
FREQUENCY SWITCH DETAILS SPEAKER
Pili JACK
ONE-FREQ MODELS :
Ju206
c¢ == =-oR| Ee
To fee oT j ye
TWO-FREQ MODELS 5
SQUELCH
Rc GRN-BRN Fe) Fu CDE |__s|_ Siren reat
Roons _', 23-73 BRN _p, 6
1 J401
WHT-ORG 4 6 WHT-BRN LS4o1
Te 2 if 3: Steak INTERNAL
Tc BRN-YEL Fi F2 SPEAKER
ras
SHOWN IN Fi POSITION Eb knoe af
VIEW FROM KNOB END
FOUR- FREQ MODELS
WHT-YEL
T3 A
WHT-ORG WHT-GRN
Te 7 eo gee
WHT-BRN
31
4k Of
1 | uf
\ ORG
2 R2
GRN-BRN pe.
ANTENNA
SIX OR EIGHT FREQ MODELS
4 WHT-GRN
3 WHT-YEL
To-WHT-ORG_.10
WHT-BRN _9
SHOWN IN MAXIMUM COUNTERCLOCKWISE
POSITION, Fi. VIEW FROM KNOB END
SHOWN IN MAXIMUM COUNTERCLOCKWISE
POSITION, F1. VIEW FROM KNOB END
BRN-YEL Tec
WHT-BLU Ts
fs WHT-BLK » 7. |
/\4 BLU-GRN T7 :
e YEL-GRN
12
= J202
EXTERNAL
ANTENNA
JACK
J401
F401
POSITIVE CR401
CHARGING
CONTACT
DMINAL VOLTAGES ARE AS FOLLOWS:
VDC FOR NICAD BATTERIES AND
.7 VDC FOR MERCURY BATTERIES
CHARGE, >
CONTROL
NEGATIVE
CHARGING
CONTACT
P201 f
FREQUENCY |
| — | 150.8-162MHz
~ 162-174MHz
J40i
INTERNAL
MICROPHONE
MK401
63E81012C57-0
OL. EEPF-7858-0
BASIC SCHEMATIC DIAGRAM
Electrical Parts List
. 8- MHz (M
162-174 MHz (H)
. . ,
PLF-1263-0
REFERENCE
SYMBOL
C21,22
C23
C24
c25
C26
C27
C28
C29
c30
7605374B03 CORE 0600185A65 | 4.7k 25% NLD6942A_ | 2 Ww Power Amplifier; 150.8-
C31 ah ee ae TPO ON) YEE 2405262E05 | Coded: BLUE, 4-1/2 turns 0600185A57 | 2.2 k +5% 162 MHz
C101 tee Ee | St (4) spacewound tapped at 3-1/4 0600185A51 1.2 k 45% or NLD6943A 2 W Power Amplifier;
2105311 EOF | 36 (H) turns; includes: 7605374B03 0600185B64 | 56 162-174 MHz
C102 See re ee fo 218%, 00. (hE) CORE 0600185B71 | 220 or NLD6952A_ | 5 W Power Amplifier; 150. 8-
eee O26 210%: 300 ¥ (F) 2482723H27 | 1.2 uH choke 0600185B68 | 120 162 MHz
C103 pee ee Eo eM) 2405262E08 | Coded: YEL, 4-1/2 turns 0600185883 | 2.2k or NLD6953A_ | 5 W Power Amplifier
2100867807 8 (H) spacewound; includes: 0600185B55 10 162-174 MHz
C104 2105311E05 | 65 7605374B03 CORE 0600185C05 | 120 k 5105177D04 | Ipc
C105 2182213E08 | 1000; 100 Vv; Y5D L102 2482723H06 | 6.2 uH choke 0600185B80 | 1.2k DIODE: See Note I
C106 ZENS EGE | 25 (4) L103, 104 2405262m08 | Coded: YEL, 4-1/2 turns 0600185B83 | 2.2 k 4882256C61 | 5.8 V Zener
2105311E08 13 (A) spacewound; includes: 0600185B98 39. kk CRYSTAL: See Note II
C107 2182877B51 | 50; 50 V (M) 7605374B03 CORE 0600185B72 | 270 4805713B01 | 17.865 MHz
Saeed a petiagel Dab ovbs 2405711 B02 | 3-turn bead 0600185B77 | 680 or 4805713B02 | 17.935 MHz
c108 e e 2482723H11 | 0.2 uH choke 0600185B87 | 4.7k
C109 2105311E02 | 15 (M) 2405262E07 | Coded: ORG, 4-3/4 turns 0600185B82 | 1.8k
2182358G24 | 12 +3%; 100 V; NPO (H) spacewound tapped at 1-1/4 1805333E01 | pot., 25k; squelch control 1483211B01 | PAD, Insulator (for Q102)
C110 2182358G27 | 43; 50 V (M) turns; includes: 7605374B03 1805370E01 | pot., 25k; volume control, 1505941D01 | COVER, Shield (for U9)
2105311E06 | 30 (H) CORE includes $203 2605685B01 | SHIELD, for U4
cll 210531104 | 10 (M) L108 2482723H11 | 0.2 uH choke 0600185B64 | 56 2605820D05 | SHIELD, Coil (for L1, L5, L103,
2100867607 «4 8 (Ei) L109, 110 2482723H27 | 1.2 uH choke 1705787D01 | 39.2 £1%; 1/2 W & L107)
c1l2 2182213E06 | 4700 -0+100%; 75 V L201 2482723H27 | 1.2 uH choke 0600185B96 | 27k 2605820D07 | SHIELD, Coil (for L2, L3, L4,
C113 Doce LEAN, Cello Ne ade aa 8 L202, 203 2482723H06 | 6.2 uH choke or 0600185B93 | 15 k L6,L7,L101, & L104)
C117 SORES OO9: | SBE 2A0 A: OV L204 2505350F01 | 0.085 uH choke 180550104 | pot., 50 k 2683379HO1 | HEATSINK, for Q102
C118, 119 2182358G94 | 100 +10%; 75 V; N2200 3905243F01 | CONTACT, Ground (for U12)
c202 2182358G94 | 100 #10%; 75 V; N2200 SPEAKER: SWITCH: 7505176E01 | PAD, Foam (for channel
C203, 204 2382397D12 | 0.12 uF +10%; 20 V 5005334D01 | Dynamic, 2"; frequency 4005120E01 | Toggle, DPDT (2-freq. models) elements)
C205 2184008H24 | .01 uF #10%; 50 V; Y5F response: 300 to 3500 Hz or 4005119E01 | Rotary, 5-pos. (4-freq. models 7505295B03 | PAD, Insulator (for FL1, FL2,
C206, 207 2184008H24 | .01 uF +10%; 50 V; = or 4005043E01 | Rotary, B-pos. (6- & B-freq, FL3, & Y1)
C211,212,221 2184008H24 | .01 uF £10%; 50 V; YSF MICROPHONE: models) 0105959C10 | CIRCUIT BOARD (for R11 &
C213 2182358G24 | 12 +3%; 100 V; NPO 5982575502 | Cartridge, res: 700 n +20% 4005265E01 | Micro, PTT R12)
C214 2105311E12 | 9 Imp: 5000 » +30% ae ON-OFF, part of R202 1505894D01 | COVER, Shield (for U13)
C215 2382397D28 |} 3.3 uF +20%; 20 V 4005061E01 | Toggle, SPDT, "PL!" 7505506D02 | MODULE PAD (for U4)
c220 2182877B17 | 5 PLUG: 7505506D03 | MODULE PAD (for U3)
0105958C97 | ASSEMBLY, 10-pin HYBRID, Encapsulated: 7505506D04 | MODULE PAD (for U2)
CHANNEL ELEMENT: 0105959C38 | ASSEMBLY, Cable 5184333G07 | I-F Amplifier 7505506D06 | MODULE PAD (for U6 & U13)
CE! thru 8 KXN1034A Receiver, use as required 5184333G08 Low Conversion 7505506D07 MODULE PAD (for U7)
depending on model é TRANSISTOR: See Note I 5184333G37 | Detector 7505506D08 | MODULE PAD (for U8 & U10)
CEI101 thru KXN1042A Transmitter, use as required 4800869819 NPN; type M9819 5105177D22 Squelch
108 depending on model 4800869726 N-Channel FET 5105177D02 | Audio Pre-Amplifier NOTES: I, For optimum performance, order replacement diodes
4800869899 NPN; type M9899 5105177D05 Audio and transistors by Motorola part number only.
DIODE: See Note I 4800869494 | NPN; type M9494 5105177D13 | Receiver Injection Il. When ordering crystal units, specify crystal frequency
CRI 4882363E03 Silicon 4800869906 NPN; type M9906 5105177D20 Regulator and Motorola part number. Gold faced FL1, FL2, and
CR2 4883654H01 Silicon 4800869899 NPN; type M9899 5105177D19 Buffer Tripler FL3 crystal filters cannot be mixed with silver can
CR203 4882466H13 | Silicon
CR401
E101
MOTOROLA
PART NO.
2105311E17
2105311 E12
2182450 B26
2105311 E16
2105311 F02
2105311E07
2105311 E06
2182358G94
2105311 E14
2105311 E16
2105311E20
2105311E07
2105311E06
2182450 B26
2105311 E12
2105311E18
2105311 E02
2105311E08
2184008H13
2182450B24
2182450B21
2105311E16
2105311E02
2184008H13
2184008H24
2182358G18
2182358G30
2182358G24
2105311E12
2305612E03
2305612E01
2382397D28
2182213E03
2382397D16
2305612E06
2382397D17
2382397D36
2182358G94
4882466H13
7683960 B05
DESCRIPTION
| CAPACITOR, Fixed: pF 5%;
25 V; N150 unless stated
11 (M)
9; 100 V (H)
0.30 10%; 500 V
18 (M)
15 (H)
36 (M)
30 (H)
100 10%; 75 V; N2200
20; 100 V (M)
18 (H)
6 (M only)
36 (M)
30 (H)
0.30 10%; 500 V
9; 100 V (M)
7 (H)
15 (M)
13 (H)
+05 uF +20%; 50 V; Y5R
0.47 10%; 500 V (M)
0.39 10%; 500 V (H)
18 (M)
15 (H)
-05 uF #20%; 50 V; Y5R
-01 uF 410%; 50 V; Y5F
125
150; N220
12 3%; 100 V; NPO
9; 100 V (Use only when FLI,
FL2,FL3 are 4805393F' series)
33 uF +20%; 4 V
22 uF 20%; 2 V
3.3 uF 420%; 20 V
-0055 uF -0+100%; 75 V
22 uF +20%; 15 V
10 uF #20%; 15 V
15 uF +20%; 20 V
1 uF 410%; 20 V
100 10%; 75 V; N2200
Silicon
FERRITE BEAD:
For L108
FL1,FL2, &
FL3 package
6505214E01
4805915D01
4805269F 01
4805393F01
4805915D02
4805269F02
4805393F02
4805915D03
4805269F03
4805393F03
0105959C40
0905283B01
0905283B01
010595887
0105956C63
0105957C86
0105958C95
2405262E11
2405262E08
2405262E06
2405262E08
0600185A69
0600185A55
0600185A85
FUSE:
2-Amp
FILTER: See Note II 4
Crystal, 4-pole; (gold faced),
Matched pair coded RED
Crystal, 4-pole; (silver can),
Matched pair coded RED
Crystal, 4-pole; (silver can),
Matched pair coded RED
Crystal, 2-pole; (gold faced),
coded BLU
Crystal, 2-pole; (silver can),
coded BLU
Crystal 2-pole; (silver can),
coded BLU
Crystal, 6-pole; (gold faced),
Matched set
Crystal, 6-pole; (silver can),
Matched set
Crystal, 6-pole; (silver can),
Matched set
JACK:
ASSEMBLY, Socket; 10-pin
Micro, speaker
Micro, antenna
Receptacle, Conn Assy CS Long
Receptacle, Conn Assy CS Short
Receptacle, Conn Assy PL Long
Receptacle, Conn Assy PL Short
COIL, RF: unless stated
Coded: GRN, 5-1/2 turns
spacewound tapped at 4-3/4
turns; includes: 7605374B03
CORE
Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
Coded: BLK, 22-1/2 turns
closewound; includes
7605374B02 CORE
Coded: YEL, 4-1/2 turns
spacewound; includes:
RESISTOR, Fixed: n+10%;
1/8 W unless stated
6.8 k 5%
1.8 k +5%
SHOWN FROM SOLDER SIDE
HIGH POWER
* MOUNTED ON SOLDER SIDE
© SS-EEPF-7820-0
~EEPF -7821-0
FLI, FL2, and FL3 crystal filters.
BASIC CIRCUIT BOARD DETAIL AND PARTS LIST
OL - EEPF -7822-0
148 ‘
=| ae igus GAIN 38 dB GAIN
NOTES: ‘GAIN
NOTES ‘AT (000H; Aupio AT 1000Hz
A. 1000uV CARRIER SIGNAL H = SQUELCH iz RCVR AUDIO VOLUME RCVR AU!
B. 100uV CARRIER SIGNAL. 34mV NOTES B,D@F 145mv ee NO SIGNAL DETECTOR CONTROL NOTES E BH PREAMPA< CONTROL POWER AMP NOTES FAH
C. DISABLE FIRST OSCILLATOR FOR THIS READING 65mV NOTES BAF NOTES BAF NOTE H OUTPUT VOLTAGE
D. DISABLE SECOND OSCILLATOR FOR THIS READING 1.4mV RMS 6.2mv RMS
E. {000uV CARRIER SIGNAL WITH {OOOHz TONE NOTES NOTES 27mv 4.1mv S7mV Nore anl 0.31V RMS
AT 3kHz DEVIATION, ACBF NOTESAGF NOTES BaF NOTES BAF U3 LOW L55VOC NOTES ESH
F. MEASUREMENT MADE WITH MOTOROLA MODEL U2 EF AMPL (729MHz | CONVERSION U4 I-F DETECTOR U6 AUDIO PREAMP
HIGH-PASS LOW-PASS
FILTERS FILTER
1ST MIXER
Q2
S-1339A ANALOG RF MILLIVOLTMETER
ci7
G. 0.5uV CARRIER SIGNAL M9726
FREQUENCY SWITCH DETAILS 125
= H. MEASUREMENT MADE WITH MOTOROLA MODEL
ONE-FREQ MODELS S-1053C AC VOLTMETER :
Ju206 55VOC
Re eer AESY BES,
lU207 RCVE ONLY
Tee U5 SQUELCH
TWO-FREQ MODELS 2) HIGH-PASS =
Qvoc uso.
Rc SRN-BRN El £0 ae “ Si es 4 | o7vwe so. =
i 7:5V REG (RCVE ONLY) 2. 2 TECTOR
Ro ORS 21-3 SAN, r i x 6 —— ae os
I c221 | |
-orc 45 ss CE 1 (TYPICAL RECEIVER Ri2
TeMetons “, i CL MHT-BRN +o! CHANNEL ELEMENT) u i 120k INTERNAL
Tc -BRN-YE FI F2 He a 220mV RMS berecrod ila NSessncn
SHOWN IN Fi POSITION Eb nos ad NOTE 'F LIMITER a
VIEW FROM KNOB END OUTPUT C29
FOUR-FREQ MODELS 0.2V RMS =
WHT-YEL BRN-YEL ‘ 0.9VDC TYP NOTE C
Ts 8 Te clita 1.2VDC TYP. W/IST. OSC cnt
OR HT-GRN
Jp —Witons = x G Ts
Tr WHSRN 7 +7.5VDC REG (RCVE ONLY) BATTERY B+ (RCVE ONLY)
cis Less
BRN. F.05 a
5 7 Bee =
7
Res ___/ ‘ons pe PIN SIDE
Rs = Re Q KNOB ANTENNA
SHOWN IN MAXIMUM COUNTERCLOCKWISE TT i+
POSITION, Fi. VIEW FROM KNOB END eae RCVE (
SIX OR EIGHT FREQ MODELS BRN-YEL a pe
WHT-GRN CEIO1(TYPICAL TRANSMITTER
75 WHT-YEL 12 Ts ae HANNEL ELEMENT. UIO TRIPLER PREDRIVER DRIVER Ui2 TRANSMIT PA. 5
5 BLK. lot
TewuT-ons iW |//* 2 tek aie OtuF Ma4g4 M9906 yess Ls Pa
2a. UE Be /5VDE (XMIT RF) ie
3.8V RF Y
YEL-GRN POSVDC s25voc ‘5\M) 5 z ae
1U204 NAL
Ons, 3 220 BATTERY ANTENNA
CUT FOR BASIC RADIO. = 5 P2 B+ JACK
NOT CUT FOR UNIV RADIO. U9 REGULATO 10 (0) ;
PIN SIDE 1.2uH ON-OFF
P/ONLN4215A 75 voc 41 | +75v |_]2 P2,
Qo~ Bae a
| P2 c2ts
SHOWN IN MAXIMUM COUNTERCLOCKWISE | 5 ; 5 33uF T
POSITION, F1. VIEW FROM KNOB END + 103 2 3 >
| [éeur Tiooo BATTERY B+ (XMIT ONLY) SS eee =
cr.
+75VDC_REG.(XMIT ONLY) 100 +7.5vDC Ceaneniso— ore 5
REG CONTACT
ie B NOMINAL VOLTAGES ARE AS FOLLOWS
SEE "pL" "pL 15VDC FOR NICAD BATTERIES AND
| swigcn E SWITCH ste 12 7VDC FOR MERCURY BATTERIES
DETAILS (C207| COLOR id Se P20), J401 S401 1 y4ol P201 7
Ot E Swit > 2>5— o 36 —— CHARGES ===> 5
| a Se Tan ep gx BONED Erne moos clea
2 . MONLY
(] | “pacrrT*Rapios YU22 TENE SS Oa oeANSMIT ONLY
NEGAT.
c BLU-GRN BLU-WHT 6) @® GaneGe—————
R210 M9899 ean 25 ace ; CONTACT
VALUE | CHANNELS. EBC D -WHT RED-WHT D-WHT GRN-WH
+ 1 BLK HT GRN GRN-WHT F201 i
Pix [1 | Rep ( %) ty 2 Yet orate fi fica hae
Sark | aaeres AM) 321 7
[None[ 3-8 | M9494 MS726 BRN 3 1 BLK SPEAKER (J201) [___MopEL SUFFIX | FREQUENCY
8 = R201 (PIN VIEW)
BEC R208 /8203 wae : | NUD6252A — | 1508-162MHz
c ON—OFF (ON VIEW) . Lnuoe2s3a_ [= | t62-174Mnz
é : CONTROL PUSH-TO-TALK
INTERNAL 401 CLIPPER & PIN VIEW. SNE VEOR Hack
MICROPHONE 4 > Ftreaay M9906 gis ‘ ) qi 1] WHT-BLK BLU GUIDE BLU WHT-BLK Ga) SwitcH
401 ! TRANSISTORS 3 OT PIN fences
5 ES BASE DETAILS P201 J401 IN SIDE)
ip ES eres (PIN VIEW) (SOCKET VIEW)
Ss INTERCONNECT BOARD FRONT COVER
1D TONE (6) F75VbC REG | CABLE AND CONNECTOR CABLE AND CONNECTOR Ape bslg
INPUT (XMIT ONLY) |
SCHEMATIC NOTES
1. UNLESS OTHERWISE STATED, RESISTANCES ARE IN OHMS AND CAPACITANCES
ARE IN PICOFARADS.
2. DC VOLTAGES ARE MEASURED FROM POINT INDICATED TO CHASSIS GROUND
USING MOTOROLA DC MULTIMETER OR EQUIVALENT.
3. © INDICATES CONNECTION POINT TO INTERCONNECT CIRCUIT BOARD.
4. REFERENCE DESIGNATIONS ARE ASSIGNED IN THE FOLLOWING MANNER: BASIC SCHEMATIC DIAGRAM
UNITSERIES = RECEIVER
1OOSERIES = TRANSMITTER
200SERIES = INTERCONNECT BOARD
400SERIES = FRONTCOVER 5
EPF-7875-0
{9dB GAIN 38 dB GAIN
SQUELCH AT 1000Hz RCVR AUDIO VOLUME RCVR AUDIO _ AT 1000Hz
CONTROL NOTES E &H PREAMPL CONTROL POWER AMPL NOTES E@H
VOLTAGE OUTPUT R202-3 INPUT SPEAKER
0.31V RMS
NOTES E8H
Jl U6 AUDIO PREAMP
3
HIGH-PASS LOW-PASS 1204
FILTER EXTERNAL
Fi FILTERS SPEAKER
u JACK
11VDC USQ A - us 13V0C US. =
OVDC SQ 2k 5 OVDC SQ
OVODC USO.
O7 VOC SQ.
LS!
EAK
3:3uF L 390
CR2
| |
eye; if J202
+75V REG ‘ EXTERNAL
4 1 | v203-1 +15VDC TO cM ale
: ' : : MICROPHONE
MK1 & MK4O1
RF) of ; R209
116
Ki01 ae CRIO2 a | | ON-OFF
: | 1 203
1 | 5 P20! aot
! {
E10e c2021 cats cai CR203
1.2uH
P2 }—— 100] 3.3uF ] .otur | a
x 5 P201-8 =
vep-—--7
F401
© +7.5VDC
uu2044
(XMIT ONLY) (FOIL), Bre
(g) Cor”
POSITIVE CR401
9 NEO CHARGINGO——b}———>
JU203 1 CONTACT
UNIVERSAL 4
RELAY NOMINAL VOLTAGES ARE AS FOLLOWS:
K101 (B) Bit , 45VDC FOR NICAD BATTERIES AND
8765 12.7VDC FOR MERCURY BATTERIES
ACCESSORY CONNECTOR J203
2 CHARGE , ;
MITCH eas GND CONTROL
Beh tals NEGATIVE
IGITAL PL i) ave sie CHARGING
ETE FOR (PIN VIEW) CONTACT On
\NSMIT- ONLY
E."PL" RADIOS GRN — GRN-WHT
MODEL _| SUFFIX | FREQUENCY
NUD6242A | sis 150.8-162MHz
NUD6243A | ss t62-174MHz
(PIN SIDE)
SEE} IEES-8
UNIVERSAL SCHEMATIC DIAGRAM
Electrical Parts List f
150. 8-162 MHz (M)
‘162-174 MHz (H)
PLF-1264-O
REFERENCE
SYMBOL
Cri ee
C23
C24
C25
C26
E27
C28
C29
C30
GED
cl10ol
C102
C103
C104
C105 2182213E08 1000; 100 V; Y5D 4882256C6l 5.8 V Zener
C106 2105311E02 | 15 (M) CRYSTAL: See Note II
2105311E08 | 13 (H) 4805713B0l 17. 865 MHz
C107
C108
C109
2182358G24 12) +3%; 100 V; NPO (H) 1483211B01 PAD, Insulator (for Q102)
c110 2182358G27 43; 50 V (M) 1505941D01 COVER, Shield (for U9)
2105311E06 30 (H) 2605685B01 SHIELD, for U4
Guat
Gir
GELS:
“Clio
GLE
c120 2100867807 8 7505176E01 PAD, Foam (for channel
C201, 217 2182213E29 100 elements)
C202 2182358G94 100 410%; 75 V; N2200 7505295 B03 PAD, Insulator (for FL1, FL2,
C203, 204 2382397D12 0.12 uF +10%; 20 V FL3, & Y1)
C216
c220
CE1 thru 8
CE101 thru
108
CRI
CR2
CR102
CR201, 202
CR203
CR204
CR401
MOTOROLA
PART NO,
2105311E17
2105311E12
2182450B26
2105311E16
2105311E02
2105311E07
2105311E06
2182358G94
2105311E14
2105311E16
2105311E20
2105311E07
2105311E06
2182450 B26
2105311E12
2105311E18
2105311 B02
2105311E08
2184008H13
2182450B21
2105311E16
2105311E02
2184008H13
2184008H24
2182358G18
2182358G30
2182358G24
2105311E12
2305612E03
2305612E01
2382397D28
2182213E03
2382397D16
2305612E06
2382397D17
2382397D36
2182358G94
2184008H24
2105311E03
2105311E07
2182450 B22
2182450B40
2105311 E04
2100867807
2105311E05
2182877B51
2182358G27
2182358G94
2105311 E02
2105311E04
2100867807
2182213E06
2382397D15
2182358G94
2382397D09
C205 2184008H24 | .01 uF +10%; 50 V; Y5F 0105959C10. | CIRCUIT BOARD (forR11 & R12)
C206, 207 2184008H24 | .01 uF 410%; 50 V; Y5F 1505894D01 | COVER, Shield (for U13)
C208, 209 2182397D25 | 0.27 uF £10% 7505506D02 | MODULE PAD (for U4)
C210 2182358G94 | 100 +10%; 75 V; N2200 7505506D03 | MODULE PAD (for U3)
AEzMIe 22.221 2184008H24 | .01 uF +10%; 50 V; Y5F 7505506D06 | MODULE PAD (for U6 & U13)
C213 2182358G24 | 12 £5% 7505506D07 | MODULE PAD (for U7)
C215 2382397D28 | 3.3 uF #20%; 20 V 7505506D08 | MODULE PAD (for U8 & U10)
2182358G94
2182877B17
KXN1034A
KXN1042A
4882363E03
4883654H01
4882363E03
4882363E04
4882466H13
4883461E12
4882466H13
DESCRIPTION
CAPACITOR, Fixed: pF +5%;
25 V; N150 unless stated
11 (M)
9; 100 V (H)
0.30 10%; 500 V
18 (M)
15 (H)
36 (M)
30 (H)
100 +10%; 75 V; N2200
20; 100 V (M)
18 (H)
6 (M only)
36 (M)
30 (H)
0.30 10%; 500 V
9; 100 V (M)
7 (H)
15 (M)
13 (H)
.05 uF +20%; 50 V; Y5R
0.39 410%; 500 Vv:
18 (M)
15 (H)
~05 uk +20%; 50 Vi Y5SR
Ol ai 10% 50 Vi YS
125
150; N220
12 43%; 100 V; NPO
9; 100 V (use only when FL1,
FL2, FL3 are 48053 93F'
series)
33 uF +20%; 4 V
22 uF +20%; 2 V
3.3 uF +20%; 20 V
-0055 uF -0+100%; 75 V
22 uF +20%; 15 V
10 uF +20%; 15 V
15 uF +20%; 20 V
1 uF +10%; 20 V
100 +10%; 75 V; N2200
POITLE 210%; 50) Visev or
47 (M)
36 (H)
0.75 10%; 500 V (M)
0.56 10%; 500 V (H)
10 (M)
8 (H)
65
® SS-EEPF-7823-0
® CS-EEPF-7824-0
5105177D20
5105177D19
NLD6942A
Regulator
Buffer Tripler
2 W Power Amplifier
150. 8-162 MHz
2 W Power Amplifier
162-174 MHz
5 W Power Amplifier
150. 8-162 MHz
5 W Power Amplifier
162-174 MHz
IDC
or NLD6943A
or NLD6952A
or NLD6953A
5105177D04
DIODE: See Note Il
or 4805713 B02 17.935 MHz
NONREFERENCED ITEMS
1405601C01
50; 50 V (M)
43; 50 V (H)
100 +10%: 75 V; N2200
15 (M)
PAD, Insulator (for K101)
2605820D05 SHIELD, Coil (for L1, L5, L103,
& L107)
SHIELD, Coil (for L2, L3, L4,
L6,L7, L101 & L104)
HEATSINK, for Q102
CONTACT, Ground (for U1l2)
10 (M)
8 (H)
4700 -0+100%; 75 V
10 uF +20%; 20 V
100 10%; 75 V; N2200
6.8 uF +20%; 10 V
2605820D07
2683379H01
3905243F01
100 +10%; 75 V; N2200 7505506D09 MODULE PAD (for U9)
5
CHANNEL ELEMENT:
Receiver, use as required
depending on model
Transmitter, use as required
depending on model
r optimum performance, order replacement diodes
d transistors by Motorola part number only.
en ordering crystal units, specify crystal frequency
d Motorola part number. Gold faced FL1, FL2, and
3 crystal filters cannot be mixed with silver can
DIODE: See Note I 1, FL2, and FL3 crystal filters.
Silicon
Silicon
Silicon
Silicon
Silicon
Silicon
Silicon
UNIVERSAL CIRCUIT BOARD DETAIL
AND PARTS LIST
$204
FREQUENCY SWITCH DETAILS
ONE-FREQ MODELS
Re oU208 oR,
Tc ofW207_.7,
ON
TWO-FREQ MODELS
-seyn FQ) FO PIN
Rc SRN-BRN we ed
R208s__, 2) 3 SAN _p,
H
= 4 =
T2WHT-ORG 35-5 WHT-BRN TT
Tc BRNY FIF2
SHOWN_IN Ft POSITION EP knos
VIEW FROM KNOB END
FOUR-FREQ MODELS
WHT-YE *
ts L 2 BRN-YEL 7.
rt WHT-ORG WHT-GRN
2 7 /3
tT WHT-BRN
Ra —SRN {
4
R3—
SHOWN IN MAXIMUM COUNTERCLOCKWISE
POSITION, Ft. VIEW FROM KNOB END-
Qn
NOTES:
A. 1000uV CARRIER SIGNAL.
B. 100uV CARRIER SIGNAL.
C. DISABLE FIRST OSCILLATOR FOR THIS READING.
D. DISABLE SECOND
E. 1000uV CARRIER SIGNAL WITH 1000Hz TONE
AT 3kHz DEVIATION,
F. MEASUREMENT MADE WITH MOTOROLA
S-1339A ANALOG RF MILLIVOLTMETER.
G. O.5uV CARRIER SIGNAL.
1H. MEASUREMENT MADE WITH MOTOROLA MODEL
S-1053C AC VOLTMETER.
+7.5V REG.
(RCVE ONLY)
Z5V REG (RCVE ONLY)
ae CE I (TYPICAL RECEIVER
i CHANNEL ELEMENT)
SIX OR EIGHT FREQ MODELS
BRN-YEL
toe ; WHT-BLU 7,
T3 5 =BLK 7,
19 BLU-GRN 7, 84 3 2 |
15 5 16
YEL-GRN 7, ¢ eo is
7 5) 14
Ria 13
Re oan
YEL_ Rs PIN SIDE
Qee
SHOWN IN MAXIMUM COUNTERCLOCKWISE
POSITION, Ft. VIEW FROM KNOB END
$202
INTERNAL
PTT SWITCH
—
J401, , P201 + creo}
i H su201 czo1 teaie
1 i c209 “roiny? +1 100 100
! ' o.27uF | \
- F
MK401 R207
INTERNAL 100k
MICROPHONE
+15VDC
FROM S203
ON-OFF SWITCH
MKI a
R208 Ju202
EXTERNAL 1202
MICROPHONE | c208 [FOIL }
| cR202
c2i7
| T 100
EXTERNAL
(er switch |
P/ONLN42154
(0) P/O NLN4573A
©
Ui3_10C
CLIPPER &
aie Ee aes
1
®
a Ad
1
= ID TONE
INPUT
OSCILLATOR FOR THIS READING.
US RCVR_ INJECTION
GBH
34mV NOTES B,DAF —_{45mV
65mV NOTES B&F NOTES BOF
Nores, a ® Fores 27mV 4.1mV 571
m i ‘mv.
AGF ACAF NOTES BAF NOTES BAF Grind
RF AMPL 1ST MIXER U2 FF AMPL \79MHz | CONVERSION
a a2 CRYSTAL
FILTER
FL3
O.9VDC TYP NOTE C
1.2VDC TYP. W/IST. OSC.
(NOT USED ON DIGITAL
"PL" MODELS)
-50d8m
Al DETECTOR
NOTE OUTPUT
35mV RMS
735V0C NOTES EBH
U4I-F DETECTOR ut
US SQUELCH
1948 GAIN
SQUELCH AT 1O00Hz RCVR AUDIO VOLUME
CONTROL NOTES EH PREAMPL CONTROL
VOLTAGE OUTPUT R202-3
O.31V RMS
NOTES EH
U6 AUDIO PREAMP
HIGH-PASS
FILTERS
LOW-PASS
FILTER
C26 |4vocusa
| __ 38.48 Gain
RCVR AUDIO. «=| AT 1000Hz
POWER AMPL | WNOTESEGH
INPUT SPEAKER
UT AUDIO PA 2 at
201
JACK
VR2
5.9VDC
HIGH-PASS 22uF | ovpe sa.
Qvoc Uso. +
aot aN S 4 O7 VOC Si a
5 DETECTOR
Ri2
120k
ie)
DETECTOR 1.2uH
LIMITER i
OUTPUT ces c3i
{uF OluF
cR2:
(USED ON DIGITAL “PL”
+7.5VDC REG (RCVE ONLY) MOBELS/IONCY
cis
Tos
J203
(A)
TRANSMIT 3 RF INPUT ig
PL 1.6VRF 5 H
©) a
5 J202
CHAWNEL ELEMENT ee PREDRIVER DRIVER Mle TRANSMIT BA 32+ Z5VREG 4 EXTERNAL
Q101 o102 4 203-1 +15VDC TO Masada ee:
M9494 M3906 | MICROPHONE aca
ae RF) MKI6 MK4OI
3.8V RF 1.2V RF
FO5VDC Spay SIM) Igy ON-OFF
{) CHO JL10s Ss $203
cor RIO! LI04 Eon = : 4 5 P201 J401
Bot =43iMiL R103 Li03 :
sot | 1e3v0C 270 eGR : R203
Too - = p20i-8 =
= 3
1 4
4
1 1
val
i + BATTERY BE(XMIT ONLY)
Tv cRg0t
#Z5VDC_REG.(XMIT ONLY) | charans
UNIVERSAL
= RELAY NOMINAL VOLTAGES ARE AS FOLLOWS.
Rata Be K{O1 {5VDC FOR NICAD BATTERIES AND
sult alcie is {2.7VDC FOR MERCURY BATTERIES
COLOR CHARGE
E - P20, 401 J401 _ P20 F —————>
SIDE "PL" SWITCH S401-2 (3)-Zar> 2 Sam << er? <Gaewat 4) te SMITOH pos GND Se
3 (] lyu2tt ADD FOR TONE,
g NEGATIVE
ities BLU-GRN BLU-WHT ia] RADIOS Lie iy 293.4 CHARGINGO——————_______4
BLU DELETE FOR REIN VIEW) SORTEGE J40t
rec Ds tas GRN-WHT RED-WHT RED-WHT GRN-WHT TRANSMIT -ONLY CRN GRN WHF 7
E Tp" a]
RED La 2 YEL PL" RADIOS ees
3vi0 aT +
M9494 M9726 BRN3 1 BLK eer SPEAKER (J201) ; |
3 BEC nooo /s2cs orca cca sag atader FREQUENCY
IL 150.8 -162MHz
c E ON—OFF
: (in View)
i)
M9906 M3819 WHT-BLK BLU GUIDE BLU WHT-BLK
R203 Rata BASe DETAILS saeil eee 401 (PIN SIDE)
TABLEL 50k) OMA REE) (PIN VIEW) (SOCKET VIEW)
ar INTERCONNECT BOARD FRONT COVER
hag tL +7.5VDC REG CABLE AND CONNECTOR CABLE AND CONNECTOR SSER SEES
(XMIT ONLY)
SCHEMATIC NOTES
1, UNLESS OTHERWISE STATED, RESISTANCES ARE IN OHMS AND CAPACITANCES
ARE IN PICOFARADS.
2. DC VOLTAGES ARE MEASURED FROM POINT INDICATED TO CHASSIS GROUND
USING MOTOROLA DC MULTIMETER OR EQUIVALENT.
3. © INDICATES CONNECTION POINT TO INTERCONNECT CIRCUIT BOARD.
4. REFERENCE DESIGNATIONS ARE ASSIGNED IN THE FOLLOWING MANNER:
UNIT SERIES
100 SERIES
200 SERIES
400 SERIES
RECEIVER
TRANSMITTER
INTERCONNECT BOARD.
FRONT COVER
EPF-7876-0
UNIVERSAL SCHEMATIC DIAGRAM
EXTERNAL
SPEAKER
Lst |
EXTERNAL
SPEAKER
Electrical Parts List
150. 8-162 MHz (M)
162-174 MHz (H)
REFERENCE
SYMBOL
zi, 22
C23
C24
c25
C26
C27
C28
C29
c30
C31
C101
c102
C103
C104
C105
C106
C107
c108
c109
c110
clll
G1tz
C113
C116
cil?
c120
c201,217
c202
C203, 204
MOTOROLA
PART NO,
2105311E17
or 2105311 E12
2182450B26
2105311 E16
or 2105311E02
2105311E07
or 2105311 E06
2182358G94
2105311 E14
or 2105311E16
2105311E20
2105311E07
or 2105311E06
2182450 B26
2105311 E12
or 2105311E18
2105311E02
or 2105311E08
2184008H13
2182450B21
2105311 E16
or 2105311E02
2184008H13
2184008H24
2182358G18
2182358G30
2182358G24
or 2105311E12
2305612E03
2305612E01
2382397D28
2182213E03
2382397D16
2305612E06
2382397D17
2382397D36
2182358G94
2184008H24
2105311E03
or 2105311E07
2182450B22
or 2182450B40
2105311E04
or 2100867807
2105311E05
2182213E08
2105311E02
or 2105311E08
2182877B51
or 2182358G27
2182358G94
2105311E02
or 2182358G24
2182358G27
or 2105311E06
2105311E04
or 2100867807
2182213E06
2382397D15
2182358G94
2382397D09
2100867807
2182213E29
2182358G94
2382397D12
PLF-1264-O
DESCRIPTION
CAPACITOR, Fixed: pF +5%;
25 V; N150 unless stated
11 (M)
9; 100 V (H)
0. 30 10%; 500 V
18 (M)
15 (H)
36 (M)
30 (H)
100 +10%; 75 V; N2200
20; 100 V (M)
18 (H)
6 (M only)
36 (M)
30 (H)
0.30 +10%; 500 V
9; 100 V (M)
7 (H)
15 (M)
13 (H)
-05 uF +20%; 50 V; Y5R
0.39 10%; 500 v
18 (M)
15 (H)
-05 uF +20%; 50 V; Y5R
-Ol uF 410%; 50 V; Y5F
125
150; N220
12 +3%; 100 V; NPO
9; 100 V (use only when FL1,
FL2, FL3 are 48053 93F'
series)
33 uF +20%; 4 V
22 uF +20%; 2 V
3.3 uF +20%; 20 V
-0055 uF -0+100%; 75 V
22 uF +20%; 15 V
10 uF +20%; 15 V
15 uF +20%; 20 V
1 uF +10%; 20 V
100 410%; 75 V; N2200
-01 uF 410%; 50 V; Y5F
47 (M)
36 (H)
0.75 +10%; 500 V (M)
0.56 +10%; 500 V (H)
10 (M)
8 (H)
65
1000; 100 V; Y5D
15 (M)
13 (H)
50; 50 V (M)
43; 50 V (H)
100 10%; 75 V; N2200
15 (M)
12 3%; 100 V; NPO (H)
43; 50 V (M)
30 (H)
10 (M)
8 (H)
4700 -0+100%; 75 V
10 uF +20%; 20 V
100 10%; 75 V; N2200
6.8 uF +20%; 10 V
8
100
100 10%; 75 V; N2200
0.12 uF +10%; 20 V
7683960 BO5
65052i4E01
4805915D01
or 4805269F01
or 4805393F01
4805915D02
or 4805269F02
or 4805393F02
4805915D03
or 4805269F03
or 4805393F03
0105959C40
0905283 BO0l
0905283B01
0905677D01
0105958C87
or 0105956C63
or 0105957C86
or 0105958C95
8005300E01
2405262E11
2405262E08
2405262E06
2405262E08
2405262E05
2482723H27
2405262E08
L102 2482723H06
L103, 104 2405262E08
2405711 B02
2482723H11
2405262E07
L108 2482723H11
L109, 110 2482723H27
L201 2482723H27
FERRITE BEAD:
For L108
FUSE:
2-Amp
FILTER: See Note II
Crystal, 4-pole; (gold faced),
Matched pair coded RED
| Crystal, 4-pole; (silver can),
Matched pair coded RED
Crystal, 4-pole; (silver can),
Matched pair coded RED
Crystal, 2-pole; (gold faced),
coded BLU
Crystal, 2-pole; (silver can),
coded BLU
Crystal, 2-pole; (silver can),
coded BLU
Crystal, 6-pole; (gold faced),
Matched set
Crystal, 6-pole; (silver can),
Matched set
Crystal, 6-pole; (silver can),
Matched set
JACK:
ASSEMBLY, Socket; 10-pin
Micro, speaker
Micro, antenna
Receptacle, Univ. Connector
Receptacle, Conn Assy CS Long
Receptacle, Conn Assy CS Short
Receptacle, Conn Assy PL Long
Receptacle, Conn Assy PL Short
RELAY:
1/6th Crystal Can, DPDT
COIL, RF: unless stated
Coded: GRN, 5-1/2 turns
spacewound tapped at 4-3/4
turns; includes: 7605374B03
CORE j
Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
Coded: BLK, 22-1/2 turns
closewound; includes:
7605374B02 CORE
Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
Coded: BLUE, 4-1/2 turns
spacewound tapped at 3-1/4
turns; includes: 7605374B03
CORE
1.2 uH choke
Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
6.2 uH choke
Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
3-turn bead
0.2 uH choke
Coded: ORG, 4-3/4 turns
spacewound tapped at 1-1/4
turns; includes: 7605374B03
CORE
0.2 uH choke
1.2 uH choke
1.2 uH choke
Rl
R2
R3
R4
R5
R6
R7
R8
RY
R10
Rll
R12
R101
R102
R103
R105
R201
R202
R203
R204
R207, 208
R209
R210
R211 thru 218
$201
0600185A69
9600185A55
0600185A85
0600185A65
0600185A57
0600185A51
0600185 B64
0600185B71
0600185 B68
0600185B83
0600185B55
0600185C05
0600185 B83
0600185B98
0600185B72
0600185 B87
1805333E01
1805370E01
0600185B64
1705787D01
0600185C04
0600185B71
0600185B93
0600185B96
1805501C04
4005120E01
4005119E01
RESISTOR, Fixed: » +10%;
1/8 W unless stated
6.8 k 5%
1.8k 45%
33k 5%
4.7k 45%
2.2k 5%
1.2 k 45%
56
220
120
Baek
10
120k
2.2k
39k
270
4,.7k
pot., 25 k; squelch control
pot., 25 k; volume control,
includes S203
56
3952.21 %; 1/2 W
100k
220
15 k (1-freq. models)
27 k (2-freq. models)
not used on multi-freq. models
pot., 50k
SWITCH:
Toggle, DPDT (2-freq. models)
Rotary, 5-pos. (4-freq. models)
RADIOS
DIGITAL "PL"
RADIOS ONLY
HIGH POWER
RADIOS ONLY
ADD FOR
% MOUNTED ON SOLDER SIDE
5105177D20
5105177D19
NLD6942A
or NLD6943A
or NLD6952A
or NLD6953A
5105177D04
4882256Cé6l
4805713B0l
or 4805713B02
1405601C0l1
1483211 B01
1505941D01
2605685B01
2605820D05
2605820D07
2683379H01
3905243F01
7505176E01
7505295B03
SS-EEPF-7823-0
CS-EEPF-Ta24-0
Regulator
Buffer Tripler
2 W Power Amplifier
150. 8-162 MHz
2 W Power Amplifier
162-174 MHz
5 W Power Amplifier
150. 8-162 MHz
5 W Power Amplifier
162-174 MHz
IDC
DIODE: See Note I
5.8 V Zener
CRYSTAL: See Note II
17.865 MHz
17.935 MHz
NONREFERENCED ITEMS
PAD, Insulator (for K101)
PAD, Insulator (for Q102)
COVER, Shield (for U9)
SHIELD, for U4
SHIELD, Coil (for L1, L5, L103,
& L107)
SHIELD, Coil (for L2, L3, L4,
L6,L7,L101 & L104)
HEATSINK, for Q102
CONTACT, Ground (for U12)
PAD, Foam (for channel
elements)
PAD, Insulator (for FL1, FL2,
FL3, & Y1)
0105959C10
1505894D01
7505506D02
7505506D03
7505506D06
7505506D07
7505506D08
7505506D09
4005053E01 CIRCUIT BOARD (for R11 & R12)
COVER, Shield (for U13)
MODULE PAD (for U4)
MODULE PAD (for U3)
MODULE PAD (for U6é & U1L3)
MODULE PAD (for U7)
MODULE PAD (for U8 & U10)
MODULE PAD (for U9)
Rotary, 8-pos. (6- & 8-freq.
models)
3905684E01 Contact, disc
3905681E01 Contact, feed-thru
sic ON-OFF, part of R202
4005061E01 Toggle, SPDT, "PL"
C205 2184008H24 | .01 uF +10%; 50 V; Y5F
C206, 207 2184008H24 | .01 uF +10%; 50 V; Y5F
C208, 209 2182397D25 | 0.27 uF +10%
C210 2182358G94 100 410%; 75 V; N2200
“C211, 212, 221 2184008H24 | .01 uF +10%; 50 V; Y5F
C213 2182358G24 12 +5%
G25 2382397D28 3.3 uF +20%; 20 V
C216 2182358G94 | 100 +10%; 75 V; N2200
C220 2182877B17 5
CHANNEL ELEMENT:
Receiver, use as required
depending on model
CE10! thru KXN1042A Transmitter, use as required
108 depending on model
6.2 uH choke
. 085 uH choke
L202, 203 2482723H06
L204 2505350F01
SPEAKER:
Dynamic, 2"; frequency
response: 300 to 3500 Hz
5005334D01
HYBRID, Encapsulated:
5184333G07 | I-F Amplifier
MICROPHONE:
Cartridge, res: 700 » +20%;
Imp: 5000 n +30%
5982575J02 :
5184333G08 Low Conversion NOTES: I. For optimum performance, order replacement diodes
5184333G37 Detector and transistors by Motorola part number only.
5105177D22 Squelch Il. en ordering crystal units, specify crystal frequency
5105177D02 Audio Pre-Amplifier and Motorola part number. Gold faced FL1, FL2, and
5105177D05 } Audio FL3 crystal filters cannot be mixed with silver can
5105177D13 Receiver Injection ap FL2, and FL3 crystal filters.
CE! thru 8 KXN1034A
PLUG:
0105958C97 ASSEMBLY, 10-pin
0105959C38 ASSEMBLY, Cable
DIODE: See Note I
CRl 4882363E03 | Silicon
CR2 4883654H01 Silicon
CR102 4882363E03 Silicon
TRANSISTOR: See Note I
NPN; type M9819 P
N-Channel FET /
NPN; type M9494
NPN; type M9906
4800869819
4800869726
4800869494
4800869906
UNIVERSAL CIRCUIT BOARD DETAIL
AND PARTS LIST
CR201, 202 4882363E04 | Silicon
CR203 4882466H13 Silicon
CR204 4883461E12 | Silicon
CR401 4882466H13 Silicon
\
20 dB QUIETING TEST (Perform on each channel)
2.2 volts ac External AC Voltmeter, | Establishes reference noise level.
Control R202 | noise out Speaker Tuneup Cable
Jack J201 NKN6248
Carrier External Signal Gener- Reduce output level to zero after setting frequency.
Generator frequency Antenna ator, Tuneup
Frequency Jack J202 Cable NKN6248
Signal Slowly increase | External AC Voltmeter, Signal level must be less than 0.35 uV. wy
Generator until noise Speaker Tuneup Cable
Output Level decreases 20dB] Jack J201 NKN6248
NOTE: CHANNEL ELEMENT (CEl, CE2, ETC.) FREQUENCY
f, = carrier frequency
f, = oscillator frequency :
pea ae IE) nS 4 EPF-7848-O F
VIEWED FROM SOLDER SIDE
TRIMMER
CAPACITOR
"rpc" OL-EEPF-7854-0
INTERCONNECT BOARD ALIGNMENT POINTS
ALIGNMENT
na jack J202.
requency channel.
pnd L107 one-eighth inch above circuit board solder side.
“}trol'' (IDC) controls R211 through R218 to midrange.
Repeat at least once to ensure a maximum has been
obtained.
Repeat steps 1 and 2.
If channel element CE103 is used, remove it to gain
access to L107 adjustment point.
2-WATT MODELS --- Adjust L107 for 2.1 watts, then
adjust U12 trimmer capacitor in direction of minimum
current for 2.0 watts.
5-WATT MODELS --- Adjust L107 for 5.0 watts.
Reinstall CE103 when this step is complete.
If tone PL is occupying option position 2, unplug it from
e frequency switch to the channel being aligned (CE102/F2,
nd CE108/F8).
“Her
BASIC MT500 TRANSMITTE,
[48
If a channel element board is occupying Option Slot 3,
unplug its two channel elements to adjust the IDC
controls.
Set audio oscillator for an output of 50 mV rms at
1000 Hz.
e frequency switch to the channel being aligned (R212/F2,
B/F8).
ement board occupying option slot 3 when adjusting R217/F7.
, CE102, ETC.) FREQUENCY
EPF-7849-O
4) 2b Gee: aL as eeieeiee ae SE
UNIVERSAL MT500 TRANSMI
GENERAL
This radio has been factory aligned and does not require any adjustments.
Realignment may be required if components are
replaced or have aged. If it is necessary to realign the radio, perform the following procedures:
1, Remove the battery and disassemble the radio as shown in the "Disassembly Procedure.'' Do not disconnect the front cover
receptacle from the interconnect board plug.
2. Connect a de power supply to the front cover battery contacts:
power supply negative to radio negative charging contact and
power supply positive to radio positive charging contact (see ''Disassembly Procedure").
Adjust the power supply output for 15 volts dc.
4. Perform either the ''Receiver Alignment" procedure or ''Transmitter Alignment" procedure or both procedures as required.
Preliminary Adjustments:
- Set PL switch S401 to its off (
RECEIVER ALIGNMENT
C1) position (if applicable).
- Set squelch ( 4, ) control R201 to its maximum counterclockwise position.
1
2
3. Set frequency switch S201 to the lowest frequency channel.
4,
Preposition slugs of Ll, L2, L3, L4, L5, L6, and L7 flush with the circuit board solder side.
Ll, L2, L3, L4, | Maximum
L5 volts RMS
Channel The frequency
Element CEl marked on
channel element
CE1. See Note
(channel element
frequency)
PREFERRED
METHOD
Channel The frequency
Element CEl marked on
channel element
CEl. See Note
(channel element
frequency)
ALTERNATE
METHODS
Channel The frequency
Element CEl marked on
channel element
CEl. See Note
(channel element
frequency)
AC Voltmeter,
Signal
Generator
Signal
Generator,
17.9 MHz
Crystal
Oscillator,
Voltmeter,
Frequency
Counter
Signal
Generator,
17.9 MHz
Crystal
Oscillator, AC
Voltmeter,
Oscilloscope
Signal
Generator,
17.9 MHz
Crystal
Oscillator,
AC Voltmeter
Inject carrier frequency signal from the signal gener-
ator to the antenna jack (J202). Adjust the signal
generator output for an indication on the -30 dBm scale
of the voltmeter.
Adjust Ll, L2, L3, L4, and L5 for a peak at Ml.
Maintain the voltmeter reading on the -30 dBm scale
by reducing the signal generator output.
Reduce signal generator to minimum output, and inject
signal from 17.9 MHz +100 Hz crystal oscillator into
crystal filter FL1 to produce at least a 10 dB rise in
signal at Ml.
Count the low i-f frequency through the ac voltmeter
and frequency counter at Ml. Record the reading
within +10 Hz; this reference must read 35 kHz +1.5
kHz.
Turn off 17.9 MHz oscillator, and adjust signal gener-
ator to the exact carrier frequency and output for a
-40 dBmreading at Ml.
Adjust channel element CE1 to produce the previously
recorded i-f frequency +50 Hz.
Reduce signal generator to minimum output, and inject
signal from a 17.9 MHz +100 Hz crystal oscillator into
crystal filter FL1. Adjust signal generator output
level for a -40 dBm reading at M1.
Connect the output of the ac voltmeter to an oscillo-
scope, and set the time base to 5 ms per division and
the gain to display signal amplitude of approximately
3 divisions.
Set the signal generator to the exact carrier frequency,
and increase the output until the waveform on the
oscilloscope appears as an amplitude modulated signal.
This signal is the resultant of 17.9 MHz crystal oscil-
lator signal mixing with the first i-f signal which will
not be exactly 17.9 MHz until the first oscillator is
warped to the precise frequency by adjusting channel
element CEl.
Adjust channel element CE1 while viewing the signal
on the oscilloscope for a zero beat or the lowest
possible amplitude modulating frequency. This method
will provide an accuracy of +100 Hz adjustment of the
first oscillator.
Reduce signal generator to minimum output and inject
signal from a 17.9 MHz +100 Hz crystal oscillator
into crystal filter FL1. Adjust signal generator output
level for a -40 dBm reading at Ml.
Listen to the audio output.
Set the signal generator to the exact carrier frequency,
and increase the output until an audio tone is heard.
This tone is the resultant of 17.9 MHz crystal oscil-
lator signal mixing with the first i-f signal which will
not be exactly 17.9 MHz until the first oscillator is
warped to the precise frequency by adjusting channel
element CEl.
Adjust channel element CEl for a zero beat (no audio
tone is heard when properly adjusted).
(Cont'd)
CE8/F8.
Volume
Control R202
Signal
Generator
Frequency
Signal
Generator
Output Level
20 dB QUIETING TEST (Perform on each channel)
2.2 volts ac External AC Voltmeter, | Establishes reference noise level.
noise out Speaker
Tuneup Cable
Jack J201 NKN6248
ator, Tuneup
Jack J202 Cable NKN6248
Slowly increase | External AC Voltmeter, Signal level must be less than 0.35 uV.
until noise Speaker Tuneup Cable
decreases 20dB| Jack J201 NKN6248
NOTE: CHANNEL ELEMENT (CE1, CE2, ETC.) FREQUENCY
f, = carrier frequency
oscillator frequency
Siok tage MZ
Fh Fh
Wood
VIEWED FROM SOLDER SIDE
TRIMMER
@ | O capacitor
REMOVE
TO
AlaGN
L107
NOTE
paul Reread step 3, 3A, or 3B for each channel in the radio; CE2/F2, CE3/F3, CE4/F4, CE5/F5, CE6/F6, CE7/F7, and
Carrier External Signal Gener- Reduce output level to zero after setting frequency.
frequency Antenna
EPF-7848-O
cE2
Ts Te Ores
INTERCONNECT BOARD ALIGNMENT POINTS
TRANSMITTER ALIGNMENT
Preliminary Adjustments: 1. Connect a 50-ohm load to external antenna jack J202.
2. Set frequency switch S201 to the lowest frequency channel.
3. Preposition slugs of L101, L103, L104, and L107 one-eighth inch above circuit board solder side.
4. Preposition ''Instantaneous Deviation Control" (IDC) controls R211 through R218 to midrange.
5
- Make all measurements with radio ''keyed.'!
STEP] ADJUST eA ee USING NOTE
L101, L103 DC Multimeter | Repeat at least once to ensure a maximum has been
obtained.
L104,
Trimmer
Capacitor on
top of U12
L107 and U12-
Trimmer
Capacitor for
2-watt radios;
L107 for 5-
negative dc
voltage
(typically
-1.0 VDC)
External
Antenna
Jack J202
Maximum RF Wattmeter,
power output
Repeat steps 1 and 2.
External
Antenna
Jack J202
If channel element CE103 is used, remove it to gain
access to L107 adjustment point.
2-WATT MODELS --- Adjust L107 for 2.1 watts, then
adjust Ul2 trimmer capacitor in direction of minimum
current for 2.0 watts.
5-WATT MODELS --- Adjust L107 for 5.0 watts.
Reinstall CE103 when this step is complete.
RF Wattmeter,
Tuneup Cable
NKN6248
Specified power
The frequency
marked on
channel element | Jack J202
CE101. See
Note (channel
element
frequency)
Frequency If tone PL is occupying option position 2, unplug it from
Counter through | the interconnect board to adjust CE101.
a 30 dB attenu-
Repeat step 4 for each channel in the radio; be
CE103/F3, CE104/F4, CE105/F5, CE106/F6,
+750 Hz
deviation
sure to set - frequency switch to the channel being aligned (CE102/F2,
CE107/F7, and CE108/F8).
1
{
fi
{
co pa ;
® SS-EEPF-7820-0
OL - EEPF-7852-0 r
Deviation Meter
through a 30dB
pad and Tuneup
Cable NKN6248
External
Antenna
Jack J202
"Private-
Line" Devia-
tion Control
(Tone PL -
R504; Digital
PL - R605), if
applicable.
LIDS
Control R211
+5.0 kHz
deviation
External
Antenna
Jack J202
If a channel element board is occupying Option Slot 3,
unplug its two channel elements to adjust the IDC
controls.
Set audio oscillator for an output of 50 mV rms at
1000 Hz. :
connected t
U13-4 of a Basic
radio or to |
Universal con-
nector J203-6
of a Universal
radio.
Deviation Meter
through a 30 dB
pad and Tuneup
Cable NKN6248
Audio oy tae
Repeat step 7 for each channel in the radio; be sure to set the frequency switch to the channel being aligned (R2 12/F2,
R213/F3, R214/F4, R215/F5, R216/F6, R217/F7, and R218/F8).
NOTE: Reinstall the two channel elements on the channel element board occupying option slot 3 when adjusting R217/F7.
NOTE: CHANNEL ELEMENT (CE101, CE102, ETC.) FREQUENCY
fe = carrier frequency
f, = oscillator frequency
' fe = 3fo EPF-7849-O
UNIVERSAL MT500 TRANSMITTER-RECEIVER ALIGNMENT POINTS | |
ae ae — . i ae ee a a at — | - ay - |
JU212 ("PAC- RT"
_ PADIOS ONLY) _
nai
TRANSMIT-ONLY "PL" | 3
DELETE FOR
DECODE MODE
(RECEIVED "PL" TONE) VOLTAGE
RECOVERED °
AUDIO |
tet ohh 5 “PAC-RT" RADIOS | -
CONTROL Juni La oon
ox
$401
"PL" DISABLE SWITCH
P/O FRONT COVER
(NOT USED
FOR "PAC-RT"
RADIOS )
(REROUTED
"PL" TONE
FILTER
PE Geno poner | ae | BTec usot"PL"PROCESSOR AND! | 7.5 VDC
("PL" INPUT) co hees : LOW-PASS FILTER | bate a
TONE OSCILLATOR | (Nor, USED s
ENCODE MODE | FOR "PAC-RT
(TRANSMITTED "PL" TONE) |
+7.5 VDC REG. — GND
(RCVE ONLY) ... , Uso8 eee f | oT
PL PROCESSOR vanel PL p ; anal |
LOW-PASS FILTER [LIMITER Pies AMPL. ee
|
|
pc
hh ae as COMPARATOR rupw OFF
RADIO ONLY 10 DELAY
+7.5VDC
REG
©
RCVE MODE = ABOVE 3.8V
XMIT MODE = BELOW 3.8V
MODEL TABLE
MODEL [SUFFIX] USED IN |
NLN4644A BASIC RADIO
NLN4646A BASIC RADIO
NLN4645A UNIVERSAL
RADIO
NLN4S211A FS UNIVERSAL
RADIO
9 PTT SWITCH
UNIVERSAL MT500
RADIO ONLY
“PL” SQUELCH SENSITIVITY CHECK
(“PL MODELS ONLY)
1. SET THE SQUELCH CONTROL (R261) TO THE UNSQUELCHED POSITION
WITH THE “PL” SWITCH OFF ( ¢ ).
2. TURN THE “PL” SWITCH ON ( 4), AND APPLY AN ON-FREQUENCY
CARRIER SIGNAL FROM THE SIGNAL GENERATOR. MODULATE THE
SIGNAL GENERATOR WITH THE PROPER “PL” TONE, AT +0.5 kHz
DEVIATION.
3. THE SQUELCH CIRCUIT SHOULD “OPEN” WHEN THE SIGNAL GENER-
ATOR OUTPUT IS INCREASED ABOVE 0,18 uV (VHF) OR 0.25 uV (UHF).
EPF-7867-0
TONE “PRIVATE-LINE” DECK
10
2, = INTERCONNECT POINT ON RADIO
FOR "PAC-RT"
RADIOS )
ONLY).
VOLTAGE
63C81010C83-0
TEST MEASUREMENTS
ENCODE | __DECODE ae
DC VOLTS | AC VOLTS DC VOLTS AC VOLTS
PL Processor and Low Pass Filter U501
& 4 (open)
> 0.6 (closed) (1)
100 mV rms
(<-15 dBm)
80 mV rms (3)
350 mV rms
(>-15 dBm)
160 mV rms (3)
280 mV rms
(typical)
7.2 (2)
d --- 7.5 ---
PL Tone Filter U502
7.5 75
1.7 17
>6 >6
7.4 7.2 (2)
Test measurements are nominal. DC voltages are with 15 VDC power sup-
ply, and AC voltages are with radio fully quieted and 500 Hz deviation on
generator (proper PL tone).
Numbers in (_ ) refer to the following notes:
(1) PL switch on (4X).
(2) No modulation; radio fully quieted.
(3) Depends upon PL Tone Filter U502.
EPF-7866-0
MOS CIRCUITS
HANDLING PRECAUTIONS
The following handling precautions are recommended for
MOS circuits:
Ts
All MOS devices should be stored or transported in
conductive material so that all exposed leads are shorted
together. MOS devices must not be inserted into con-
ventional plastic ‘‘snow”’ or plastic trays of the type
used for storage and transportation of other semicon-
ductor devices.
All MOS devices should be placed on a grounded bench
surface and the technicians should ground themselves
prior to handling devices. This is done most effectively
by having the technician wear a conductive wrist strap
in series with 100 k ohms to ground.
Nylon clothing should not be worn while handling MOS
circuits.
Do not insert or remove MOS devices with power applied.
Check all power supplies to be used for testing MOS
devices and be certain there are no voltage transients
present.
When lead straightening, provide ground straps for the
apparatus used.
When soldering, use a grounded soldering iron.
All power should be turned off in a system before printed
circuit boards containing MOS devices are inserted
or removed.
All printed circuit boards containing MOS devices should
be provided with shorting straps across the edge
connector when being carried or transported.
MOS devices should be handled by their packages and not
by the leads, if at all possible. Prior to touching the unit,
the technician should touch an electrical ground to
remove any static charge that may have been
accumulated. The package and substrate may be electri-
cally common. If so, the reaction of a discharge to the
case would cause the same damage as touching the leads.
NOTE
These precautions are especially true in low humidity con-
ditions.
EPF-7202-0
VIEWED FROM SOLDER SIDE
BLK
o WHT-BRN_ ff §
(3) RED-WHT_|
WHT
GRAY
SS-DEPF-7868-0
© CS-DEPF-7869-0
OL- DEPF-7870-0
PARTS LIST
NLN4212A Digital ''PL'' Deck
MOTOROLA
PART NO,
REFERENCE
SYMBOL
2184008H13
0600185C02
0600185B89
0600185B92
1805501Cl11
0600185C03
0600185B87
SLO5T 77 D25
5105854B79
5105854B78
NLN8922A
PLF-1244-0
DESCRIPTION
CAPACITOR, Fixed:
705) WE 20%) 25) V,
DIODE: See Note
Silicon
Silicon
RESISTOR, Fixed: n +10%;
1/8 W unless stated
68 k
6.8 k
12k
Pot., 500 k
82k
4.7k
INTEGRATED CIRCUIT:
Code Conditioner
Digital Processor
Encode Filter
Code Plug
NONREFERENCED ITEMS
0905287C0
4205175E01
8405326E01
SOCKFT, Berg; circuit board
RETAINER, Spacer
CIRCUIT BOARD
NOTE: For optimum performance, order replacement diodes
by Motorola part number only.
“PL” SQUELCH SENSITIVITY CHECK
1. SET THE SQUELCH CONTROL (R201) TO THE THRESHOLD POSITION
WITH THE “PL” SWITCH OFF ( q ).
2. TURN THE “PL” SWITCH ON ( 4), AND APPLY AN ON-FREQUENCY
CARRIER SIGNAL FROM THE SIGNAL GENERATOR. MODULATE THE
SIGNAL GENERATOR WITH THE PROPER DIGITAL “PL” CODE.
3. THE SQUELCH CIRCUIT SHOULD “OPEN” WHEN THE SIGNAL GENER-
ATOR OUTPUT IS INCREASED ABOVE 0.18 uV (VHF) OR 0.25 uV (UHF).
EPF-7872-0
DIGITAL “PRIVATE-LINE” DECK
11
NLN4211A, NLN4644A,
JU2I2 ("PAC-RT” $401
NLN4645A, NLN4646A. NLN4768A (e)-— Pom _—_ [iq] Fry plsaste swirce
TRANSMIT-ONLY "PL" | 3<
VIEWED FROM SOLDER SIDE VIEWED FROM SOLDER SIDE (NOT USED
FOR “PAC-RT”
RADIOS )
DELETE FOR
SQUELCH pty
DECODE MODE conTROL ira CAT RADIOS (a) Le
(RECEIVED "PL" TONE) VOLTAGE rm
RECOVERED 4
AUDIO [
12
OUTPUT ante! Li | eANEE® —USOt "PL" PROCESSOR xv |
7.5 VDC
<2) REG SUPPLY
VOLTAGE
("PL" INPUT) sae Te __ __LOW-PASS FILTER
TONE OSCILLATOR (NOT USED |
= ENCODE MODE FOR PAC: RT
(TRANSMITTED "PL" TONE)
+7.5 VDC REG.
(RCVE ONLY)
U501
"PL" PROCESSOR
AND
LOW-PASS FILTER
RED-WHT
(REROUTED af
pc * . :
(BASIC) COMPARATOR Seow fom PAC-RT
BASIC MT5CO 10 DELAY aes
RADIO ONLY F 2 | TONE OUT 4 DEV. ADJ.
+7.5VDC
REG /
RCVE MODE = ABOVE 3.8V
XMIT MODE = BELOW 3.8V
TO POINTS ON INTERCONNECT CIRCUIT BOARD
INPUT
MODEL TABLE (UNIV RADIOS
[mone “Tsurrix] Used IN et
OF
9 PTT SWITCH VOLTAGE
TO POINTS ON INTERCONNECT CIRCUIT BOARD
UNIVERSAL MT500
NLN4645A UNIVERSAL
RADIO
NLN4211A aa UNIVERSAL
RADIO
{) = INTERCONNECT POINT ON RADIO
RADIO ONLY 63C81010C83-0
A
me;
VIEWED FROM SOLDER SIDE
© SS- DEPF -7863-0 » SS- DEPF -7863-0 iharal
® CS- DEPF-7864-0 @ CS- DEPF- 7864-0
OL- DEPF-7865-0 OL- DEPF- 8042-0 ues
‘ee “PL” SQUELCH SENSITIVITY CHECK TEST MEASUREMENTS
END VIEW OF
TONE "PL" DECK
ADAPTOR BOARD JAG Se ee ae
(SOLOER SIDE) us ogee ae DC VOLTS | AC VOLTS DC VOLTS AC VOLTS
1, SET THE SQUELCH CONTROL (R201) TO THE UNSQUELCHED POSITION jocvotts | acvoits | ocvoits | AcvoLTS |
Tone PL Decks WITH THE “PL” SWITCH OFF ( ¢ ).
NLN4211A Universal Long Frame 2. TURN THE “PL” SWITCH ON ( <), AND APPLY AN ON-FREQUENCY
PL Processor and Low Pass Filter U501
2
NLN4644A Basic Short Frame ¢ MOUNTEDION/ SOLDER) SIDE CARRIER SIGNAL FROM THE SIGNAL GENERATOR. MODULATE THE
NLN4645A Universal Short Frame * COMBONENT SIDE-BEPEFE pa. SIGNAL GENERATOR WITH THE PROPER “PL” TONE, AT 40.5 kHz
NLN4646A Basic Long Frame DEVIATION. C .
NLN4768A Basic Long Frame (PACeRT) PLF-1243-0 3. THE SQUELCH CIRCUIT SHOULD “OPEN” WHEN THE SIGNAL GENER-
ATOR OUTPUT IS INCREASED ABOVE 0.18 uV (VHF) OR 0.25 uV (UHF).
EPF-7867-0
& 4 (open)
> 0.6 (closed) (1)
MOTOROLA
PART NO,
REFERENCE
SYMBOL
DESCRIPTION
100 mV rms
(<-15 dBm)
80 mV rms (3)
350 mV rms
(>-15 dBm)
160 mV rms (3)
280 mV rms
(typical)
RESISTOR, Fixed: no
100 k 410%; 1/8 W (NLN4644A,
NLN4646A)
150 k 10%; 1/8 W (NLN4644A,
NLN4646A)
4.7k +10%; 1/8 W (NLN4Z2114,
NLN4645A)
Pot., 50k
INTEGRATED CIRCUIT:
PL Processor and Low-Pass
7.2 (2)
0600185C04
0600185C06
0600185B87
1805501C04
aoe 7.5 —
PL Tone Filter U502 4
5105177D23
Filter # .
NFN6010A PL Tone Filter (Not part of 3
Tone PL Decks) > : = ae
uw
NONREFERENCED ITEMS 3 : ce -
a
0105950D70 Assembly, Adapter; contains o 5 a +
circuit board & bracket : oe ieee
(NLN4644A, NLN4645A)
Assembly, Adapter; contains
circuit board & bracket
(NLN4211A, NLN4646A)
SOCKET, Berg; circuit board
SOCKET, Spring f
0105959C02
Test measurements are nominal. DC voltages are with 15 VDC power sup-
ply, and AC voltages are with radio fully quieted and 500 Hz deviation on
generator (proper PL tone).
Numbers in (_ ) refer to the following notes:
0905287C05
0905604C06
3005373E01 CABLE, Circuit Board
| LONG = SHORT (1) PL switch on (9),
easton] CLEP niente FRAME FRAME TONE “PRIVATE-LINE” DECK cehaeintg e
(3) Depends upon PL Tone Filter U502.
EPF-7866-0
10
+e
MOS CIRCUITS
HANDLING PRECAUTIONS
The following handling precautions are recommended for
MOS circuits:
1, All MOS devices should be stored or transported in
conductive material so that all exposed leads are shorted
together. MOS devices must not be inserted into con-
ventional plastic “snow” or plastic trays of the type
used for storage and transportation of other semicon-
ductor devices.
2. All MOS devices should be placed on a grounded bench
surface and the technicians should ground themselves
prior to handling devices. This is done most effectively
by having the technician wear a conductive wrist strap
in series with 100 k ohms to ground.
3. Nylon clothing should not be worn while handling MOS
circuits.
4. Do not insert or remove MOS devices with power applied.
Check all power supplies to be used for testing MOS
devices and be certain there are no voltage transients
present.
5. When lead straightening, provide ground straps for the
apparatus used.
6. When soldering, use a grounded soldering iron.
7. All power should be turned off in a system before printed
circuit boards containing MOS devices are inserted
or removed.
8. All printed circuit boards containing MOS devices should
be provided with shorting straps across the edge
connector when being carried or transported.
9. MOS devices should be handled by their packages and not
by the leads, if at all possible. Prior to touching the unit,
the technician should touch an electrical ground to
remove any static charge that may have been
accumulated. The package and substrate may be electri-
cally common. If so, the reaction of a discharge to the
case would cause the same damage. as touching the leads.
NOTE
These precautions are especially true in low humidity con-
ditions.
EPF-7202-0
VIEWED FROM SOLDER SIDE
® SS~-DEPF-7866-0
© CS-DEPF-7869-0
OL- DEPF-7870-0
{
5 » (NOTE 1) PTT(UNIVERSAL
= FU RADIOS ONLY) RELAY COIL INPUT
(UNIVERSAL RADIOS ONLY)
~ PLL IN RY(NOTE 2) |WHT-BRN
O O al U602
DIGITAL "PL"
Eta, PROCESSOR
U603
ENCODE
FILTER
+5VDC 11
CUTEST REGULATOR| © epapee di foa ~semebae
7
LOW- AMPLIFIER EIVERTER | | °
PASS PLL WHT
FILTER 5
R604 = AMPLIFIER FILTER ae
ae | ee ENCODE / DECODE Tek pe 500k __ 82k — Yo
LoGic ne io»
2 DETECT TONE
roy UO! { a =O pote
i 1 DEVIATION
fete) 50 ADJUST !
CONDITIONER she XTAL
Veo TES Jeet "pL" ARC ont Kea
INPUT FROM 3 6 5
"PL" SWITCH TIME OUT CREO! O! THRU 3- O-——-O
P/O FRONT COVER [3] TIMER GRN-WHT
SQUELCH Buel “ are 2 "PL" SWITCH
CONTROL (2)—d v>—(4)-+ 1 $401-2 C) O
VOLTAGE a ga ae fea] 1 THRU 9
Wi
NOTES: $401-1 CODE PLUG | RED-WHT
1. JUMPER JU601 REQUIRED ON LOW SIDE I-F INJECTION (OMIT JUMPER JU602)—\BLK 10 +7.5VDC .
JUMPER JU602 REQUIRED ON HIGH SIDE I-F INJECTION (1) I o ] REGULATED
(OMIT JUMPER JU6O1). RADIC. GND) we Pos See ee
2. WHEN TIME-OUT-TIMER OPTION IS USED WITH DIGITAL "PL" OPTION , U604
DISCONNECT WHT-BRN WIRE FROM (8), AND CONNECT IT TO ((g) (8)-
3. WHEN DIGITAL "PL" OPTION IS INSTALLED, INTERCONNECT BOARD
JUMPER JU203 1S REMOVED AND JU2I/ IS. ADDED.
CODE PLUG MODULE
TEST MEASUREMENTS
VOLTAGE WAVEFORM VOLTAGE WAVEFORM VOLTAGE WAVEFORM
Code Conditioner U601
63C8I010C84-0
DECODE
VOLTAGE WAVEFORM
Digital PL Processor U602
15.0 V de
Disc. Noise
7.5 Vdc Amplified to
0.5 Vp-p
=7.5V il HH 10 V p-p (1)
Lee
=75V 10 Vp-p (1)
mit
=75V 10 Vp-p (1)
tar outs
Random
=75V lf li 10 V p-p (1) E ULL 5.5V pp
Random
2.7V | ll 5.2Vpp
~75V #3100 Hz
5.2 Vp-p
275V lI | 10 V p-p (1) 0.77 Vde
-=+5.5 V de
5.45 Vde - 0
1.07 V de (2) - Ground
0 (3)
5.5 V de (4)
Random
5.5Vp-p
135Hz@
5.5Vp-
5.7 V de
15.0 V de
14.3 V de
Ground ©
0 - Encode Filter U603
0
15.0 V de (3) 15.0 V de (3) : 0
7.5 V de
Code Plug U604 15.0 V de
4.6 V dc (4) : 5.5 V de (4)
Ground
* Test measurements are nominal; PL switch on or off and no carrier input.
Numbers in (_ ) refer to the following notes:
(1) Digital waveform
(2) PL switch on
(3) PL switch off
(4) Code plug removed
135Hz@
4.0Vp-p
7.5Vde
15.0V de
Ground
(5) Changes to 135 Hz sine wave (turn-off code) on dekey of PTT switch
EPF-7871-0
PARTS LIST
NLN4212A Digital ''PL'' Deck
REFERENCE MOTOROLA
SYMBOL PART NO,
PLF-1244-O
DESCRIPTION
CAPACITOR, Fixed:
2184008H13 -05 uF 420%; 25 V
DIODE: See Note
Silicon
Silicon
RESISTOR, Fixed: » +10%;
1/8 W unless stated
0600185C02 68 k
0600185B89 6.8k
0600185B92 12k
1805501Cl11 Pot., 500 k
0600185C03 82 k
0600185B87 4,.7k
INTEGRATED CIRCUIT:
Code Conditioner
5105854B79 Digital Processor
5105854B78 Encode Filter
NLN8922A Code Plug
5105177D25
NONREFERENCED ITEMS
0905287C0 SOCKFT, Berg; circuit board
4205175E01
8405326E01
RETAINER, Spacer
CIRCUIT BOARD
NOTE: For optimum performance, order replacement diodes
by Motorola part number only.
“PL” SQUELCH SENSITIVITY CHECK
1, SET THE SQUELCH CONTROL (R201) TO THE THRESHOLD POSITION
WITH THE “PL” SWITCH OFF ( q ).
2. TURN THE “PL” SWITCH ON ( 4), AND APPLY AN ON-FREQUENCY
CARRIER SIGNAL FROM THE SIGNAL GENERATOR. MODULATE THE
SIGNAL GENERATOR WITH THE PROPER DIGITAL “PL” CODE.
3. THE SQUELCH CIRCUIT SHOULD “OPEN” WHEN THE SIGNAL GENER-
ATOR OUTPUT IS INCREASED ABOVE 0.18 uV (VHF) OR 0.25 uV (UHF).
EPF-7872-0
DIGITAL “PRIVATE-LINE” DECK
11
PTT GND
XMTR AUDIO INPUT
RCVR AUDIO OUTPUT
wi
—_—— -———_— oe ——— eee oo ee P
| es rz
PTT GND
XMTR AUDIO INPUT
RCVR AUDIO OUTPUT
MODELS SUFFIX
63B81102C46-0
NMN6082A
Speaker-Microphone Kits:
NMN6081A Straight Cord
NMN6082A Coiled Cord PLF-1238-O
REFERENCE MOTGROLA
Tl
SYMBOL PART NO. DESCRIPTION
CAPACITOR, Fixed:
2184008H05 . 0064 uF +10%;50 V (NMN6082A
only)
SPEAKER, Dynamic:
5005334D01 39 mn, 2-inch diameter
MICROPHONE:
5982575502 Miniature; Res: 700 n, Imped:
5000 a +30%
PLUG:
2805763D02 Connector, 7-contact
SWITCH:
4082 159D02 Miero; PTT, SPDT
CORD:
3084048H02 Straight, 48"
3084123H02 Coiled
EXTERNAL SPEAKER-MICROPHONES
UZ
of
(MA) MOTOROLA INSTRUCTION MANUAL REVISION FMR-638
for Issue-1
Service Supplement No. 68P81012C56-O
MT500 "Handie-Talkie'' Radios
GENERAL
This revision outlines changes that have occurred since the printing
of your service booklet. Installation of these changes in earlier
equipment is not necessary except as recommended in Motorola
Service and Repair Notes (SRN's).
REVISION DETAILS
Item Change New New
No. Affects Number Sulfix
1 General Information pees vers
CHANGES
Item
No
1 On page 3 (Interconnect Circuit Board Detail),
hes reverse C204 symbol;
b. channel element CE2 area, change JU212 to read: JU216
On page 4 (Basic Circuit Board Detail and Parts List)
and on page 7 (Universal Circuit Board Detail -and,Parts.List),
make the following parts list changes:
Ref.
Sym. Action Part Number Description
C17 deleted
(Ouilge: changed to 2100861435 LOsp Fe Ooh ANE
CHANNEL ELEMENT:
CEl1 thru 8 changed to KXNI1075A Receiver, use as required,
depending on model
Cr lO les chanpete KXN1083A 2 W Transmitter, use as
thru 108 required, depending on model
CEIOIr. add or KXN1042A 5 W Transmitter, use as
thru 108 required, depending on model
FL1, FL2, change (silver can) to (gold faced) and vice versa
A ee
R14 add 0600185A57 Pa ee
4/28/77 -1 of 3- FMR-638
a. delete C17 from circuit board detail and add a jumper in its
place.
b, « addyRl4 across L5.
On page 5 (Basic Schematic Diagram),
ai in "PL'Switch S401 circuitry, change JU212 fo readz:aiuais
b. delete C17 and add a jumper in its place.
cy> add R14 symbol across io,
d. add ''Second Oscillator Crystal Frequencies" table.
SECOND OSCILLATOR CRYSTAL FREQUENCIES
CARRIER FIRST, OSCILBALOR SECOND OSCILLATOR
FREQUENCY CRYSTAL FREQUENCY CRYSTAL FREQUENCY
i os ay
146.90 - 151.70 MHz 43.00 - 44.60 MHz 17.865 MHz
151.70 - 152.30 MHz 44.60 - 44.80 MHz 17.935 MHz
152.30 - 157.10 MHz 44.80 - 46.40 MHz 17.865 MHz
157.10 - 157.70 MHz 46.40 - 46.60 MHz 17.935 MHz
157.70 - 160.70 MHz 46.60 - 47.60 MHz 17.865 MHz
160.70 - 161.30 MHz 47.60 - 47.80 MHz 17.935 MHz
161.30 - 165.20 MHz 47.80 - 49.10 MHz 17.865 MHz
165.20 - 165.80 MHz 49.10 - 49.30 MHz 17.935 MHz
165.80 - 167.90 MHz 49.30 - 50.00 MHz 17.865 MHz
167.90 - 168.50 MHz 50.00 - 50.20 MHz 17.935 MHz
168.50 - 169.70 MHz 50.20 - 50.60 MHz 17.865 MHz
169.70 - 170.30 MHz 50.60 - 50.80 MHz 17.935 MHz
170.30 - 175.00 MHz 50.80 - 52.37 MHz 17.865 MHz
CRYSTAL FORMULA: i = 3 fa 417.9 MHz
On page 6 (Universal Schematic Diagram),
a. delete Cl? and.,add atjumper an its-place.
b. add R14 symbol across L5
c. add ''Second Oscillator Crystal Frequencies"! table.
|r
FMR-638
SECOND OSCILLATOR CRYSTAL FREQUENCIES
CARRIER
FREQUENCY
£
Cc
150.80 - 151.70 MHz
151.70 - 152.30 MHz
152.30 - 157.10 MHz
157.10 - 157.70 MHz
157.70 - 160.70 MHz
160.70 - 161.30 MHz
161.30 - 165.20 MHz
165.20 - 165.80 MHz
165.80 - 167.90 MHz
167.90 - 168.50 MHz
168.50 - 169.70 MHz
169.70 - 170.30 MHz
170.30 - 175.00 MHz
Cita Ped POR NU IANS =ar3 fo) +17. 9,MHz
FIRST OSCILLATOR
CRYSTAL FREQUENCY
f
ol
43.00 - 44.60 MHz
44.60 - 44.80 MHz
44.80 - 46.40 MHz
46.40 - 46.60 MHz
46.60 - 47.60 MHz
47.60 - 47.80 MHz
47.80 - 49.10 MHz
49.10 - 49.30 MHz
49.30 - 50.00 MHz
50.00 - 50.20 MHz
50.20 - 50.60 MHz
50.60 - 50.80 MHz
50.80 - 52.37 MHz
SECOND OSCILLATOR
CRYSTAL FREQUENCY
i Zz.
17.865 MHz
17.935 MHz
17.865 MHz
17.935 MHz
17.865 MHz
17.935 MHz
17.865 MHz
17.935 MHz
17.865 MHz
17.935 MHz
17.865 MHz
17.935 MHz
17.865 MHz
On page 10 (Tone ''Private-Line'' Deck), make the following changes
on NLN4768A Circuit Board Detail:
aAsmmeaelctesRoOl, R5OC, & R503
b. add JU50l/sin place of R502
On page 10 (Tone ''Private-Line'' Deck), make the following changes
on the Schematic Diagram:
ae add U5S0lsactoss R502 and add NOTH. POR "PACeRT" RADIOS;
R501 & R502 DELETED AND JU501 ADDED.
b. between interconnect points 4 & 6, change JU212 to read: JUZ216.
c. between interconnect points 3 & 6, change note to read (USED FOR
"PAC@®RT'"' RADIOS).
eS
FMR-638
\
j
|
y
\
ry
‘
r :
{
re
<¢
® x
‘
: ‘ - oe f
et i) a
aa > 7 aa
‘¢ iy
, : ;
‘
Abas
Je
"ty : ~ “ Wass . te! ‘ a Uf . » ; ; "|
ANT: She ike: MME BSE ie
: au i ‘ ,
Psi Soy Bites 3. | PG, Ske E>. SR ~ *E
Si ea ye OS CS AA EM Cet 86 iM O8 se
> eek beastie, FEN TO» OSS HM aM
ypne-t ‘HA ORR 08. 9? ches OF ONT Sat
ees DS ET. GYR tee. ES ae
| Tee eta es ox? yi data
; ae : ee oe hs ~. As IT) Lr Pe te. So ‘
aaa , ie
in Fiesta : “ere eee
FMR-638A
Issue - 1
instruction manual revision
for
Service Supplement No. 68P81012C56-O
MT500 “‘Handie-Talkie” Radio
PROTECTED RECEIVER OPTION
a2
c40 C42 C44 C46 IST. MIXER a
3.8(H) 0.62(H) 0.56(H) 0.62(H) M9726 ices
5(M) JU2 0.75 (M) 0.62(M) —0.75(M) a CRYSTAL
@—— 5 Ny, FILTER
INPUT ays
fu Ls 3f T%
R14
p2 2 2k
6 U8 4
RECEIVER 0.5V RMS
ee NOTE F
C13
8 5.5VDC 5 eS omnapey 13 E 0.47 (M)
WITH CE. Cra
3 1,6 {5(M) 18 (M) O9VDC TYP NOTE C
O.2V RMS Few) 1.2VDC TYP. W/tst OSC.
= = R6 C16
1.2k 7S .O4uF
PROTECTED RECEIVER ~ 1 ih +75VOC
NUD6302A ({50.8~- 162 MHz) yAd4
NUD6303A (162-174 MHz) (RCVE ONLY)
+ 63B81012C48-0
OL BEPF-8246-0
PLF-1324-O
MOTOROLA
PART NO.
REFERENCE
SYMBOL
or 2105311E17
2182450B22
2182450B41
2105311 E04
2100867807
11 (H)
0.75 + 10%; 500 V (M)
0.62 + 10%; 500 V (H)
10 (M)
8; 75 V; NO80 (H)
DESCRIPTION
CAPACITOR, Fixed: pF + 5%;
25 V; N150 unless stated
6 (M only)
15 (M)
11 (H)
0.05 uF + 20%; 50 V; Y5R
0.47 + 10%; 500 V (M)
0.39 + 10%; 500 V (H)
18 (M)
15(H)
0.05 uk + 20%; 50°V; YSR:
0.01 uF + 10%; 50 V; Y5F
125
150; N220
5 +.25 pF; 75 V (M)
3.8 +.25 pF; 75 V (H)
2105311 E20
2105311 E02
2105311E17
2184008H13
2182450B24
2182450B21
2105311E16
2105311 E02
2184008H13
2184008H24
2182358G18
2182358G30
2182877B17
2182877 B09
COIL, RF: unless stated
Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
2405262E08
2405262E06 Coded: BLK, 22-1/2 turns
closewound; includes:
7605374B02 CORE
2405262E08 Coded: YEL, 4-1/2 turns
spacewound; includes:
7605374B03 CORE
Z105311 E12
2105311E18
2182450B22
2182450B41
2105311E08
2105311E17
2182450B41
2182450B40
2105311 E08
9; 100 V (M)
7 (H)
0.75 + 10%;
0.62 + 10%;
13 (M)
11 (H)
0.62 + 10%;
0.56 + 10%;
13 (M)
500 V (M)
500 V (H)
500 V (M)
500 V (H)
-1 of 2-
2405262E05
0600185A69
0600185A51
Coded: BLUE, 4-1/2 turns
spacewound tapped at 3-1/4
turns; includes:
7605374B03 CORE
RESISTOR, Fixed: ohm + 10%;
1/8 W unless stated
6.8 k + 5%
Ved ke 5%
MiO}
SOL!
seo
DIGITAL "PL
RADIOS ONLY \
HIGH POWER
RADIOS ONLY
=o $
* MOUNTED ON SOLDER SIDE
@ SS- EEPF-8240-0
@ cs-EEPF-8241-0
OL -EEPF-8242-0
»