Document text
O
ICOM
SERVICE
MANUAL
DUAL BAND FM TRANSCEIVER
IC-32AT
iG—32E
Icom Inc.
4?
37
INTRODUCTION
This service manual describes the latest service informa-
tion for the IC-32A/AT/E DUAL BAND FM TRANSCEIVER
at the time of going to press.
Six versions of the IC-32A/AT/E have been designed.
This service manual covers each version.
FREQUENCY TUNING
VERSION RANGE STEP
NO. VERSION [MHz] [kHz]
oh
ane 430~440
(IC-32AT)
INITIAL
OFFSET
[MHz]
7.6 | Tone call
5.0 | CTCSS/DTMF
CTCSS/DTMF
ENCODERS
Tone call
DANGER
NEVER connect the transceiver to an AC outlet or to a
DC power supply that uses more than 16V. This will
ruin the transceiver.
DO NOT expose the transceiver to rain, snow or any
liquids.
DO NOT reverse the polarities of the power supply when
connecting the transceiver.
DO NOT apply an RF signal of more than 20dBm
(100 mW) to the antenna connector. This could damage
the transceiver’s front end.
REPAIR NOTE
1. Make sure a problem is internal before disassembling
the transceiver.
2. DO NOT open the transceiver until the transceiver is
disconnected from a power source.
3. DO NOT force any of the variable components. Turn
them slowly and smoothly.
4. DO NOT short any circuits or electronic parts. An
insulated tuning tool MUST be used for all adjust-
ments.
5. DO NOT keep power ON for a long time when the
transceiver is defective.
6. DO NOT transmit power into a signal generator or a
sweep generator.
7. ALWAYS connect a 30 dB~40 dB attenuator between
the transceiver and a deviation meter or spectrum
analyzer when using such test equipment.
8. READ the instructions of test equipment thoroughly
before connecting equipment to the transceiver.
E
eS
The picture shows the IC-32AT.
ORDERING PARTS
Be sure to include the following four points when ordering
replacement parts:
1. Component part number and name
2. Equipment model name and unit name
3. 10-digit order numbers for mechanical parts
4. Quantity required
<SAMPLE ORDER>
IC uPD4094BG IC-32A MAINUNIT — 2 pieces
Screw PHBO2x31.5ZK IC-32E Frontpanel 8810004000 4 pieces
Addresses are provided on the inside back cover for
your convenience.
SECTION
SECTION
SECTION
SECTION
SECTION —
SECTION
SECTION
SECTION
SECTION
SECTION
a
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NOOO FP WD —
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TABLE OF CONTENTS
SPECIFICATIONS .....:.......... «eae eae a FREI BAT ALA 1—1
OUTSIDE AND INSIDE VIEWS................... 0022 e eee eee eee 2—1~4
OUTSIDE VIEWS... ...........-4..... eanteeeh . hood. eyed SUASBOL oat. 16-2 |
INSIDE VIEWS... .. cc ccncer ashes isccissnvsr ss so) Bag io leanne Drea
BLOCK DIAGRAM .:.... 2. 6:40.52 Pov rrr ce ee a
CIRCUIT GESCRIPTION......4.....b...... oimarteme ace ee eee 4—1~6
RECEIVERBOIRCUITS «oc ccc ccd cs vocals « stipe )GN, h Sibeg Sepak eh 2 eee ee A =e
TRANSMUMBER CIRCUITS: .c5 0 oo Bis ct eet in xe ee ee A eat?
VHESPLISMBCUITS: ccc 5 eke oe Ee oe ee Aas
UH PEE SIRI CUTT SS sc Sse lin 5 hs Pec eee ect ete eee Aine
POWER GaeeLy CIRCUITS =: 3) bead Ee A
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GPU EORTALLOCATIONS (LOGIC;}UNIT) +. snuwets. ae. :o0-)-as, zn lueectte Ld ee 4—5
MECHANICAL PARTS AND DISASSEMBLY............................ 5—1~4
Rete DARTS... os. cv emis em ene tt hee oan een ee Saaq
ENO: occ Sac de we DovSb ew deme we onbe ie te tk oe 52
MAINTENANCE AND ADJUSTMENT ..............................02.. 6—1~6
PRE ADSUSBMENT.........0.0dc.0.. HY SUV SE ee: Sem eeey Je eee 6x4
Reeve GeMDJUSTMENT ic. s0 docs uduussaecevacu seid oseahasuiness 1a. gay
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RF UNIT (2)5 .'so0 en oii Oe kes Sok le i cee ae ti
UEVCO UNIT oot FES one ee alee Lest
VCO UNITS hin 24 is Sian ew ee oe ee 7==11
TONE UNIT CSO oo Ra OI a oe eee ize
PART GIO) ce keke aes | a ee i eres ein ks ee ee 8—1~8
OPTIONAL UNITS 2m .9! s142 08... .. onitdreezecib. orgies laropmni. ¢, mekigig 9—1~4
UT-40 TONE SQUELCH UNIT CIRCUIT DESCRIPTION .............0cccceeeeeeeees G —. {
UT-40 VOLTAGE/CIRCUIL DIAGRAM ge... 20. oc co eee ey.
LIT-40 BOABD LAY OW Siete ate he a kre ae 0 est
UT.AD. BLOCK DIAGRAM sec mas amet en 7, sg) ON en et ee 9—4
UT-40 PARTS bi Siiamners ariteneath: «et. © uli aes cent adi 0d elles ee 9464
SECTION 1
SPECIFICATIONS
mi GENERAL
e Frequency coverage
VERSION
GUARANTEED
RANGE
TRANSCEIVER
IC-32A/AT (U.S.A. version)
IC-32A (Australia version)
144.00 ~ 148.00
440.00 ~ 450.00
OPERATIONAL RANGE
RECEIVER
TRANSMITTER
138.00 ~ 174.00
440.00 ~ 450.00
144.00 ~ 148.00
430.00 ~ 440.00
IC-32AT (Asia version)
144.00 ~ 148.00
430.00 ~ 440.00
IC-32E (Europe version)
144.00 ~ 146.00
430.00 ~ 440.00
IC-32E (Italy version)
144.00 ~ 148.00
430.00 ~ 440.00
144.00 ~ 148.00
430.00 ~ 440.00
140.00 ~ 150.00
440.00 ~ 450.00
144.00 ~ 148.00
430.00 ~ 440.00
138.00 ~ 174.00
430.00 ~ 440.00
140.00 ~ 150.00
430.00 ~ 440.00
144.00 ~ 146.00
430.00 ~ 440.00
144.00 ~ 146.00
430.00 ~ 440.00
138.00 ~ 174.00
430.00 ~ 440.00
140.00 ~ 150.00
430.00 ~ 440.00
(Unit: MHz)
® Mode
e Tuning step increment
F3 (FM)
IC-32A/AT 5, 10, 15, 20, or 25 kHz ;
IC-32E 12.5 or 25 kHz
50 Q unbalanced
5.5~ 16.0 V DC (from the bottom terminal)
12.0~ 16.0 V DC (from [DC IN 13.8 V] jack)
DESCRIPTION
Power saved typical
e Antenna impedance
© Power supply requirement
e Current drain (at 13.2 V DC) TX/RX
Receive
Max. audio output
HIGH power
Transmit
LOW power
—10°C~ +60°C (+14°F ~ +140°F)
+10 ppm (— 10°C ~ +60°C, +14°F ~ +140°F)
e Usable temperature range
e Frequency stability
e Dimensions and weight WEIGHT
ATTACHED BATTERY PACK we 2 | 5 Unit: g (Ib)
With BP-70 (U.S.A. version) 65 (2.6) 180.5 (7.1) 35 (1.4) 590 (1.3)
With BP-4 (Asia version) 65 (2.6) 169.0 (6.7) 35 (1.4) 545 (1.2)
65 (2.6) 159.0 (6.3) 35 (1.4) 510 (1.1)
With BP-3 (Other versions)
Mi TRANSMITTER
¢ Output power
Variable reactance frequency modulation
e Modulation system
e Max. frequency deviation ao KHZ
e¢ Spurious emissions Less than —60 dB
e Microphone impedance 2 kQ
Mi RECEIVER
e Receive system Double-conversion superheterodyne
e Intermediate frequencies - ist. .30.875 MHZ 2nd 455 kHz
e Sensitivity Less than 0.25 uV for 12 dB SINAD
e Squelch sensitivity (threshold) Less than 0.158 pV
© Selectivity Less than +7.5 kHz/—6 dB
More than +15 kHz/—60 dB
Less than —60 dB
Less than —50 dB
More than 400 mW at 10 % distortion with an 8 Q load
8Q
e Spurious response rejection
© Intermodulation rejection
e Audio output power
e Audio output impedance
All stated specifications are subject to change without notice or obligation.
:—39
SECTION 2 OUTSIDE AND INSIDE VIEWS
2-1 OUTSIDE VIEWS
¢ TOP PANEL
(@) POWER/VOLUME CONTROL [PWR/VOL]
@) SQUELCH CONTROL [SQUELCH]
@) MAIN DIAL [MAIN DIAL]
@ RF OUTPUT POWER SWITCH [H/L]
EE. 6) ANTENNA CONNECTOR
Gy. © EXTERNAL SPEAKER JACK [EXT SP]
sau| cH @) EXTERNAL MICROPHONE JACK [MIC]
EXTERNAL DC POWER JACK [DC IN 13.8 V]
@) 0) @)
e FRONT AND SIDE PANELS
SEZ
© ISF @) TRANSMIT INDICATOR [TX]
@ \) | @) FUNCTION DISPLAY
I gees @ KEYBOARD
® Ne SSS) @ SPEAKER
g les 3 (6) MICROPHONE
t= : © MONITOR SWITCH [MONITOR]
@ lh, ——_ A (@ FUNCTION SWITCH [FUNCTION]
6 ee PTT SWITCH
Sere @ LIGHT SWITCH [LIGHT]
ee BATTERY PACK RELEASE BUTTON [RELEASE]
N
() FREQUENCY DISPLAY
| ale @ TS INDICATOR “TS”
Seyi @) MEMORY MODE INDICATOR “M”
@ — 3) @) MEMORY CHANNEL INDICATOR
‘g-—@ ©) DUPLEX INDICATORS “—” “DUP”
ems TSPROG | © FULL DUPLEX INDICATOR “SPT”
oe @ PROGRAMMED SCAN INDICATOR “PROG”
PRIORITY WATCH INDICATOR “PRIO”
Q@ ®
(15) ©)
| alls @ TONE AND SQUELCH INDICATORS “T” “SQL”
if Dean MEMORY SKIP INDICATOR “SKIP”
wmrrnrnn = (@ S/RF INDICATOR
re TT ig (2 TONE SETTING INDICATOR “TO”
TOOW (3 OFFSET FREQUENCY WRITE INDICATOR “OW”
(co), ma) ene wars waa a oO) (4 POCKET BEEP INDICATOR “(((«)))”
(5 LOCK INDICATOR “L”
@ @
2-2 INSIDE VIEWS
¢ LOGIC UNIT
Low voltage comparator/
SRF indicator comparator
(IC904: LA6393M)
CPU
(IC902 : uPD75308GF-100-3B9) CPU clock
(X902 CR227)
DTMF encoder (IC-32AT only)
(IC901 : LR40872) Initial matrix
e MAIN UNIT
Shift register
(1\C701 : w~PD4094BG)
Lithium backup battery
5 V regulator
(IC705: S81250HG)
-T5 V regulator circuit
+5S regulator circuit
AF power amp
(IC702: BA526)
R5 V regulator circuit
Mic amp
(IC706: M5218FP) 2nd IF circuit
TONE UNIT
(IC-32AT only) 2nd LO crystal
(X701 : CR214)
e RF UNIT
UHF power module
(VHF power module is located
under this module.) UHF bandpass filter
VHF bandpass filter
VHF VCO UNIT UHF VCO UNIT
1st IF circuit
PLL UNIT
(Both VHF and UHF PLL
circuits are included in this case.)
PLL reference crystal
(X203: CR247)
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SECTION 3
SECTION 4
CIRCUIT DESCRIPTION
4-1 RECEIVER CIRCUITS
4-1-1 ANTENNA SWITCHING CIRCUIT
(RF UNIT)
Received signals enter the ANTENNA CONNECTOR (J210)
and pass through a low-pass filter (L222, L223 and C354
~C358). The low-pass filter is designed to filter signals
higher than 450 MHz.
To separate VHF and UHF signals, a low-pass filter
(L226~L228, C376~C240) for VHF and a high-pass filter
(L220, L221, C346~C350) for UHF are included.
The VHF antenna switching circuit employs a A/4-type
diode switching system consisting of D205, D219, L206,
L207 and C244~C246. While receiving, D205 and D219
turn OFF and receive signals are applied to the VHF RF
amplifier circuit.
The UHF antenna switching circuit consists of D201,
D216, L214 and C283~C285. While receiving, D212 and
D216 turn OFF and receive signals are applied to the
UHF RF amplifier circuit.
4-1-2 VHF RF CIRCUIT (RF UNIT)
VHF receive signals from the antenna switching circuit
pass through a bandpass filter consisting of D204, L205,
C241 and C242. The signals are then amplified at the
VHF RF amplifier (Q203). Amplified signals pass through
a bandpass filter consisting of D202, D203, C231, C233,
C236, L203 and L204.
4-1-3 VHF 1ST MIXER CIRCUIT
(RF AND V-VCO UNITS)
Filtered signals are mixed with the 1st LO signal from
the V-VCO UNIT at the VHF 1st mixer (Q202) for conver-
sion to 30.875 MHz 1st IF signals.
4-1-4 UHF RF CIRCUIT (RF UNIT)
UHF receive signals from the antenna switching circuit
pass through a high-pass filter (C281, C282 and L212) and
are then amplified at the UHF RF amplifiers (Q210 and
Q211). Bandpass filters (L210 and L211) suppress out-
of-band signals.
4-1-5 UHF 1ST MIXER CIRCUIT
(RF AND U-VCO UNITS)
The filtered signals are mixed with UHF 1st LO signals
from the U-VCO UNIT at the UHF 1st mixer (Q209) for
conversion to 30.875 MHz 1st IF signals.
4-1-6 1ST IF CIRCUIT (RF AND MAIN UNITS)
1st IF signals in both the VHF and UHF bands utilize the
same frequency (30.875 MHz), and the same 1st IF circuit
is used.
1st IF signals from Q209 (UHF) or Q202 (VHF) are
applied to a pair of mechanical crystal filters (Fl202)
which determine receiver selectivity. 1st IF signals
amplified at Q201 are applied to an FM IC chip (IC707)
on the MAIN UNIT.
IC707 contains the oscillator, mixer, limiter amplifier, and
quadrature detector circuits. 1st IF signals from the RF
UNIT are applied to pin 20 of IC707. Signals are mixed
with the 2nd LO signal at the mixer section for conver-
sion to 455 kHz 2nd IF signals.
2nd IF signals are output from pin 4 and pass through .
FI701 for removal of unwanted heterodyned signals. The
filtered signals re-enter at pin 6 and are amplified in the
limiter amplifier section. Amplified signals are detected
at the quadrature detector section using ceramic resonator
X702 for conversion to audio signals.
IF CIRCUIT
to AF
circuit
[SQUELCH]
control
roping Fe
to noise
detector R+5S
~~ st IF signal
C743. ~—«from RF UNIT
IC707
TK10420M
- to S-indicator
amplifier
Fig. 1
4-1-7 AF CIRCUIT
(MAIN, EF AND LOGIC UNITS)
AF signals from pin 11 of IC707 are applied to a de-
emphasis circuit (R724 and C732) and are amplified
at Q706 and Q709. The de-emphasis circuit is an inte-
grator circuit with frequency characteristics of —6 dB/
oct.
Amplified signals pass through the AF mute switch (Q703)
and VOLUME CONTROL (R151), and are then applied to
the AF power amplifier (1C702).
The AF power amplifier (IC702) amplifies signals to drive
the speaker (SP901).
4-1-8 SQUELCH CIRCUIT
(MAIN AND EF UNITS)
A portion of signals from pin 11 of IC707 is applied to
active filter pin 12 of IC707. The SQUELCH CONTROL
(R152) is connected to the active filter input to control
the input level. The active filter amplifies noise com-
ponents of 20 kHz or more.
The noise components output from pin 14 are then
rectified by D703 for conversion to DC voltage. When
this voltage is at a “HIGH” level, Q708 turns ON, and
Q705 turns OFF. Thus Q701 and Q702, the power
source circuit of AF power amplifier |C702, is deactivated.
While transmitting, R+5S is not applied to Q705, thus
the power source circuit (Q701 and Q702) is deactivated.
4-2 TRANSMITTER CIRCUITS
4-2-1 MICROPHONE AMPLIFIER CIRCUIT
(MAIN UNIT)
AF signals from microphone MC901 or from the EXTER-
NAL MICROPHONE JACK (J203) are amplified at a
limiter amplifier (pin 3 of IC706). This limiter amplifier
is formed by a negative feedback circuit with frequency
characteristics set at +6 dB/oct. This causes the limiter
amplifier to function as a pre-emphasis circuit.
AF signals from the limiter amplifier (pin 1 of IC706) are
applied to a splatter filter (pin 6 of IC706) for removing
harmonic distortion components higher than 3 kHz. The
output signal from the splatter filter (pin 7 of IC706) is
applied to D552 through R781 (VHF) or applied to D501
through R779 (UHF) for performing frequency modulation.
4-2-2 VHF BUFFER AMPLIFIER CIRCUIT
(V-VCO AND RF UNITS)
VHF signals from the V-VCO UNIT are amplified at buffer
amplifiers Q553 and Q223, pass through transmit and
receive switching diode D218, and are amplified at driver
Q229, thus obtaining drive power.
4-2-3 VHF POWER AMPLIFIER CIRCUIT
(RF UNIT)
Amplified signals at Q229 are power amplified at C207
and obtain more than 5.5 W (when HIGH is selected) or
1 W (when LOW is selected). Output power from IC207
passes through an antenna switching circuit (D219) and
a low-pass filter, and then is applied to the ANTENNA
CONNECTOR (J210).
4-2-4 UHF BUFFER AMPLIFIER CIRCUIT
(U-VCO AND RF UNITS)
UHF signals from the U-VCO UNIT are amplified at buffer
amplifiers Q501 and Q221, pass through transmit and
receive switching diode D215 and are amplified at driver
amp Q224, thus obtaining drive power.
4-2-5 UHF POWER AMPLIFIER CIRCUIT
(RF UNIT)
Amplified signals at Q224 are power amplified at 1C206
and obtain more than 5W (when HIGH is selected) or
1 W (when LOW is selected). Output power from IC206
passes through an antenna switching circuit (D216), a
high-pass filter and a low-pass filter, and then is applied
to the ANTENNA CONNECTOR (J210).
4-2-6 APC CIRCUIT (RF UNIT)
The APC circuit protects the power modules (IC206 and
1C207) from a mismatched output load and selects HIGH
and LOW output power.
The output power level from the power module (IC206 or
IC207) is detected at the APC detector (D217). When
antenna impedance is matched at 50Q, the detected
level is at a minimum. However, when antenna imped-
ance is mismatched, the detected voltage is higher than
when matched.
When the antenna impedance is mismatched, the base
voltage of Q228 is higher than the other base voltage of
Q228 (reference voltage). Q228 decreases the collector
current of Q226 using Q227. Q226 collector current is
used at the driver amplifier (Q224 or Q229). Hence, when
the antenna impedance is mismatched, output power is
decreased.
APC CIRCUIT
from APC u
detector D217 ty
Vcc
R309
to Q224 0226 s
R336 , O R320 R321
to Q229 4 p
ee =
Q227 i en) ¢> aa: &
> ah [Hil] oO
“ay L-=|--/=-4 switch
°
=
I Q228 x
to CPU
Fig. 2
The output power selecting circuit uses the APC circuit.
The [H/L] switch on the top panel selects the reference
voltage, changing output power to HIGH or LOW.
4-3 VHF PLL CIRCUITS
4-3-1 GENERAL (RF AND V-VCO UNITS)
The VHF PLL circuit uses a one chip PLL IC (IC205)
which contains a programmable divider, phase detector,
data shift register and data latch circuits. IC205 controls
the VHF VCO oscillating frequency using varicap diodes
D553 and D554. The VHF VCO oscillating frequency is
used as a VHF transmitting frequency while transmitting
or as a VHF 1st LO signal while receiving.
The oscillated signal at the VHF VCO circuit is buffer
amplified at Q551 and Q222, and is applied to pin 8 of
IC205. IC205 divides the signal using N-data from the
CPU (IC902) and phase detects the divided signal using
the reference oscillator signal. The phase detected
signal is converted to a DC voltage (lock voltage) by the
charge pump and loop filter. The lock voltage is applied
to varicap diodes D553 and D554 in the VHF VCO circuit
to control the VCO oscillating frequency. A _ stable,
desired frequency is thus obtained by this loop.
VHF PLL CIRCUIT BLOCK DIAGRAM
CHARGE PUMP
LOOP FILTER
OUTPUT
Ref. freq.
Fig. 3
4-3-2 REFERENCE OSCILLATOR CIRCUIT
(RF UNIT)
Q212 and X203 oscillate a 10.0 MHz signal. The signal is
divided in the divider inside C205 to obtain the reference
frequency. The reference frequency, 6.25 kHz or 5 kHz,
is determined by the IC205 dividing ratio using N-data
from the CPU (IC902) to obtain selectable tuning steps
of 5°10,°12:5)'45, 20'or 25°KHz.
4-3-3 CHARGE PUMP AND LOOP FILTER
CIRCUITS (RF UNIT)
The phase detected signals output from pins 5 and 12 of
IC205 are pulse signals. These signals are converted to
DC voltage by the charge pump (Q217 and Q219) and the
loop filter (R283, R284, R303, C314, C331 and C333).
Q230 and Q236 form the charge pump control circuit
which cuts off charge pump output. Signals are not
applied to the VCO circuit while the power saver is
activated. Q218 is a DC amplifier which amplifies the
lock voltage to tune the center frequency of the VHF
bandpass filter.
4-3-4 VCO CIRCUIT (V-VCO UNIT)
The VCO (Variable Control Oscillator) circuit oscillates
the 1st LO frequency in receive mode and transmit
frequency in transmit mode. The VCO free-run frequency
is shifted by D551 using C556. +The generated frequency
is controlled by D553 and D554 using the lock voltage
output from the loop filter.
4-4 UHF PLL CIRCUITS
4-4-1 GENERAL (RF AND U-VCO UNITS)
The UHF VCO circuits use a PLL IC (IC203) and a swallow
counter (IC204).
IC203 controls the UHF VCO oscillating frequency using
varicap diode D501. The UHF VCO oscillating frequency
is used as a UHF transmitting frequency while transmit-
ting or as a UHF 1st LO signal while receiving.
The oscillated signal at the UHF VCO circuit is buffer
amplified at Q503, and is applied to pin 1 of IC204.
1C204 divides the signal either 1/64 or 1/65. The divided ~
signal is then applied to pin 9 of 1C203. 10204 divides
the signal using the N-data from the CPU (IC902) and
phase detects the divided signal using the reference
oscillator signal. The phase detected signal is converted
to a DC voltage (lock voltage) by the charge pump
and loop filter. The lock voltage is applied to varicap
diode D501 in the UHF VCO circuit to control the VCO
oscillating frequency. A stable desired frequency is thus
obtained by this loop.
4-4-2 REFERENCE OSCILLATOR CIRCUIT
(RF UNIT)
Q212 and X203 oscillate a 10.0 MHz signal. The signal
is divided in the divider inside |C203 to obtain the refer-
ence frequency. The reference frequency, 6.25 kHz or
5 kHz, is determined by the IC203 dividing ratio using
N-data from the CPU (IC902) to obtain selectable tuning
steps of 5, 10, 12.5, 15, 20 or 25 kHz.
4-4-3 CHARGE PUMP AND LOOP FILTER
CIRCUITS (RF UNIT)
The phase detected signals output from pins 19 and 21
of IC203 are pulse signals. These signals are converted
to a DC voltage by the charge pump (Q237, Q238 and
Q239) and the loop filter (C309, C310, R276, R277, R292
and C508).
Q215 and Q216 form the charge pump control circuit
which cuts off charge pump output. Signals are not
applied to the VCO circuit while the power saver is
activated.
4-4-4 VCO CIRCUIT (U-VCO UNIT)
The VCO (Variable Control Oscillator) circuit oscillates the
1st LO frequency in receive mode and transmit frequency
in transmit mode. The VCO free run frequency is shifted
by D502. The generated frequency is controlled by
_ D501 using the lock voltage output from the loop filter.
4-5 POWER SUPPLY CIRCUITS
4-5-1 VOLTAGE LINES (MAIN UNIT)
LINE DESCRIPTION
Vcc Battery pack voltage or external DC power that
1C207), the AF power amp. regulator, and the
following 5 V lines.
passes through the POWER CONTROL (R151).
Vcc is applied to the power modules (IC206 or
+5 Common 5 V current amplified at Q720 and Q721
using IC705 output as a reference voltage.
+558 5 V controlled by the power saver function.
Current amplified at Q712 and Q713.
R+5S 5 V controlled by the power saver function.
Current amplified at Q716 and Q717. Used by
the receive circuits.
5 V current amplified at Q714 and Q715. Used
by the transmitter circuits.
4-5-2 VOLTAGE REGULATOR CIRCUIT
(MAIN UNIT)
When the battery voltage is 5.5~16V, the regulator
(IC705) outputs a reference voltage of 5V. The noise
components are removed by the noise filter (C785, R756).
_ This output is applied to the current amplifier (Q720,
Q721).
4-5-3 CPU POWER SOURCE CIRCUIT
(MAIN UNIT)
When the transceiver is turned OFF, a voltage is applied
to IC902 (CPU) from lithium backup battery BT701.
4-5-4 T+5/R+5S SWITCHING CIRCUIT
(MAIN AND LOGIC UNITS)
When the PTT switch (S703) is pushed, Q724 is turned
ON. The collector of Q725 outputs a “LOW” signal to
pin 64 of 1C902 (CPU).
Pin 40 of IC902 sends transmit data to IC701. Pin 12
of IC701 outputs a “HIGH” signal. Pin 11 of IC701
outputs a “LOW” signal to pin 13 of IC703c, controlling
the base of Q717. Thus, R5+S is turned OFF. Pin 12
of IC701 outputs a “HIGH” signal to pin 1 of IC703e,
controlling the base of Q715. Thus T+5 is turned ON.
4-6 OTHER CIRCUITS
4-6-1 SUBAUDIBLE TONE ENCODER UNIT
(TONE UNIT) (IC-32AT only)
IC601 generates subaudible tones. A generated tone is
made via the dividing oscillator, and a dividing ratio is
controlled by 6-bit data from a shift resistor (IC602).
R601 adjusts deviation.
4-6-2 DTMF ENCODER CIRCUIT
(MAIN AND LOGIC UNITS) (IC-32AT only)
The DTMF encoder (IC901), generates Dual Tone Multi
Frequencies. If any key on the KEYBOARD is pushed
while transmitting, the proper frequency dividing ratio for
the frequency of X901 (3.58 MHz) is selected. One set of
audio frequencies corresponding to row input and column
input is then output from pin 17.
Also, a “HIGH” level signal is output from pin 11 of
IC901 when the KEYBOARD is activated. This level is
applied to an integrator circuit (R750, R754 and C773)
in the MAIN UNIT to obtain a time constant of approx. 1
sec. for turning Q719 ON. Thus transmission continues
during keying.
4-6-3 TONE CALL CIRCUIT (MAIN UNIT)
(IC-32E only)
This circuit generates a 1750 Hz tone to open a repeater.
When the TONE CALL switch (R152) is pushed, Q718 is
turned ON and T+5 voltage is applied to IC704. 1IC704
divides 7.1680 MHz by 4096 and outputs 1750 Hz tones
from pin 4. R748 adjusts deviation.
4-6-4 S/RF-INDICATOR CIRCUIT
(MAIN AND LOGIC UNITS)
A portion of signals passed from FI701 is amplified at
the S-indicator amplifier (Q711, Q710), and is detected
at voltage doubler (D705). The voltage from D705 or
APC detector voltage from D222 is applied to indicator
comparator pin 2 of |C904b.
The signal passes through an integrator circuit (R933 and
C908); the voltage at pin 3 of IC904 increases with time.
When the voltage at pin 3 is greater than pin 2, pin 1
outputs “HIGH.” The voltage of pin 3 of IC904 depends
on time. IC902 measures the time during which pin 49
outputs “HIGH” and pin 50 receives “HIGH.” The S/RF-
INDICATOR, DS904, is for indicating the relative signal
strength or output power.
S/RF INDICATOR CIRCUIT
+58
4-6-5 LAMP CIRCUIT (LOGIC UNIT) When the power saver function starts, pin 47 of IC902
(CPU) outputs a power saver signal (IOST) as in the follow-
When the eee hl le: Se is pushed, pin 46 of ing timing diagram. A +5M signal from pin 13 of IC701
IC902 (CPU) siguabeossr Wile Be eo So lL specen al oh controls +5S signals; RX5 signals from pin 11 control
this signal is amplified at Q905 and Q906 to illuminate R+5S signals.
backlights DS902 and DS903.
lf the LIGHT switch is pushed again when pin 46 is in 4-6-7 LOW VOLTAGE DETECTED CIRCUIT
a “HIGH” condition, pin 46 returns to “LOW” when (LOGIC UNIT)
switches are not being used.
This circuit consists of IC904a, R928 and R926. 1.16 V
is applied to pin 5 of IC904a. The Vcc voltage is divided
4-6-6 POWER SAVER CIRCUIT (MAIN UNIT) by R926 and R928, and the divided voltage is applied to
pin 6 of IC904a. When the Vcc voltage exceeds 5.7 V,
the voltage at pin 6 becomes greater than that at pin 5
and pin 7 becomes ‘‘LOW.” When the Vcc voltage is
less than 5.7 V, the voltage at pin 5 exceeds that at pin 6
and pin 7 outputs in a “HIGH” condition. TRANSMIT
INDICATOR DS901 does not light even when transmitting.
The power saver function starts after approx. 30 sec. when
no switch is pushed and the squelch is closed, or when
the transceiver is in receive mode.
4-7 CPU PORT ALLOCATIONS (LOGIC UNIT)
PORT NO. | PINNO. | DESCRIPTION PORT NO. | INNO. | DESCRIPTION
RESET When a “LOW” signal is applied, CPU | P33 53 Input port for acknowledge signal
IC902 is initialized. [ENC]
whether the tone encoder IC601 is
POO Detects a signal for the standby mode
[INT4]
38 connected or not.
of the CPU. The CPU enters the
PO1 39
40
41
the trailing edge of a signal. P50~P53 34~37 | These are output ports for strobe
[KSO~KS3] signals for the initial and keyboard
matrices.
Outputs a serial data output clock for
PLL N-data, subaudible tones, and t/O
expander data.
ie P60
PO2 Outputs serial data synchronized with | [UNLKLV]
[DATA] CK signals.
Mane Input port for an acknowledge signal
PO3 Inputs a squelch signal. When the
[BUSY] squelch opens, a ‘“‘HIGH”’ signal is | P61 61
applied. [DET] in the optional UT-40 TONE
PO10~P013 42~45 | Input ports for the initial matrix. SE ee
[KIRO~KIR3] “HIGH” when the tone squelch
opens.
P40~P43 29~32 These are input ports for the
standby mode when the port reads [KRO~KR3] keyboard matrices.
| [CK]
Input port for a PLL unlock signal.
Normally this port is “LOW.” When
the PLL is unlocked the port receives
“HIGH” signals.
OUIDUTS CORY nere P62 Input port for the down signal of the
LAMPO FUNCTION DISPLAY intensity.
! = [DIAL DN] MAIN DIAL (S151).
P21 47 Outputs a strobe signal for serial data :
[IOSTB] to the output expander. P63 Input port for the up signal of the
[DIAL UP]
49
1
Input signal on the PTT line. This
port receives “HIGH” signals when
MAIN DIAL (S151).
P22 48 Ouiputs a strobe signal for serial data
[CTSTB] to the subaudible tone encoder or P70 64
optional UT-40 TONE SQUELCH UPN) s4e
UNIT. the PTT switch is pushed.
P23 Outputs a reference voltage for the ie
[SRFO] S/RF INDICATOR. [FUNC] ($702).
P30 50 Inputs a comparated signal for the P72 Fd Input port for the MONITOR switch
[SRFI] S/RF INDICATOR. [MONI] ($151).
P31 5 67 Input port for the LIGHT switch
[HI/LO] [LAMP] (S701).
BP6 19 Outputs a strobe signal for the VHF
P32 52 {[PLSL] PLL IC (IC205).
[ENC/DEC] BP7 20 Outputs a strobe signal for the UHF
[PLSH] PLL IC (IC203).
P73
Output port for the RF INDICATOR.
This port becomes “HIGH” when
HIGH output power is selected.
Input port for acknowledge signal
which acknowledges whether the
optional UT-40 TONE SQUELCH UNIT
is connected or not.
1/0 EXPANDER IC701 (MAIN UNIT)
PORT NO. DESCRIPTION
Q1 eh. Outputs a “HIGH” signal when the
[SQL OFF] MONITOR switch (S701) is pushed.
Q2 5 Outputs an AF mute signal when
[RMUTE]
Q
Q
the optional UT-40’s pocket beep
4 7
[BEEPO]
function is activated.
S
[+5M]
Outputs 500 Hz or 1 kHz beep
tones.
Q7 12
[TX5]
Outputs a square wave during the
power saver condition. When this
port is “HIGH,” a +5S signal is cut
Orme
Q8 11
(RX5]
Outputs ‘‘HIGH”’ signals during
transmissions. Controls the T+5
line.
Outputs square waves during the
power saver condition. When this
port is ‘‘HIGH,” the R+5S line is
CULOFE
1/0 EXPANDER 1IC202 (RF UNIT)
PORT NO. DESCRIPTION
1 Outputs “LOW” signals when the
[BANDL] VHF band is selected.
.
Q2 S Outputs ‘““LOW” signals during VHF
(TXL] band transmission.
Q3 Outputs ‘‘LOW” signals during VHF
[RXL] band reception.
4
Q i Outputs square waves during the
[CPCL] power saver condition. Outputs
“1 OW” signals when the VHF band
is selected and during the power
saver condition.
Q5 14 Outputs “LOW” signals when the
{[BANDH] VHF band is selected.
Qs Outputs “HIGH” signals during
[TXH] UHF band transmission.
Q7 12 Outputs “HIGH” signals during
[RXH] UHF band reception.
;
8 Outputs square waves during the
[CPCH] power saver condition. When this
port is ‘‘HIGH,” the VLV line is cut
OFF:
SECTION 5
LABELLED
NUMBER
5-1 MECHANICAL PARTS
DESCRIPTION
PH BO 2x 31.5 ZK
ORDERING
NUMBER
8810004000
MECHANICAL PARTS AND DISASSEMBLY
575 Rear panel
8010007140
575 PTT rubber
8930012400
PTT plates
8930011600
PTT holder
8930013110
PTT button
8930011910
PH No. 0-3 M2x6 ZK
8810004890
pO} —)—) ro ym] omy]
PH BO No. 0-3 M1.4*3.5 ZK
8810001710
A
rSy
Plate (SP)
8930012760
PH BO No. 0-1 M2x4
8810004800
575 Front ground plate
8930013300
SP plate
8930012100
562 Keyboard (A)
8010007150
573 MIC holder
8930011930
SP seal
8930011580
@|@|@/@/O|SO/O/©|@|G/@/@|@|@/E/O
573 Casing seal (center)
8930012410
575 Front panel (A) (IC-32E)
575 Front panel (C) (IC-32A)
8210003300
8210003320
ee ee | Se fa ie Sl ee ee te
Knob (MAIN) N128
8610004290
Knobs (SQUELCH, PWR/VOL) N126
8610004230
VR nuts (E)
8830000550
PH M2x6 ZK
8810004860
Connector seal
8930012420
575 Top panel-1 (IC-32A/AT)
575 Top panel (A)-1 (IC-32E)
8210003200
8210003210
Top seal
8930012390
Seal plate
8930012300
PH No. 0-3 M1.4x3.5 ZK
8810001710
PH No. 0-1 M2x 2.5
8810004870
LCD holder
8930012190
LCD reflector
6910002060
PH M2~x4 Ni FE
PH M2x3 Ni FE
8810005320
8810004950
573 standoff
8930012081
PH M2x8 Ni FE
8810004950
PH M2.6 x 10 Ni
8810004730
Plate
8930012280
Screw lug M2
8860000010
Contact holder
8930011880
BuH M2x6 Ni BS
8810002580
Latch plate (B)
8930013430
Sliding guide
8010006990
FH M2x4 Ni BS
8810002310
Release button (A)
8930008610
PH M25 Ni
8810005310
@
20)
a)
22)
23)
24)
a)
26)
wy
29
80)
cD
82)
83)
4)
8)
88)
cy)
cD)
®
Screw type
Screw head style
Connection spring
Screw: M2x3, etc. _Self-tapping screw: BO 2 15, etc.
PH: Pan head FH: Flat head
BuH: Button head
5 ¥
8930005980
Precision type screw: No. 0-1, etc.
e MAIN UNIT
e CASE AND CHASSIS
e LOGIC UNIT
LW
WN
y y
\ € Y
\ LN 4
f Cy)
\y \
SECTION 5
LABELLED
NUMBER
5-1 MECHANICAL PARTS
DESCRIPTION
PH BO 2x 31.5 ZK
ORDERING
NUMBER
8810004000
MECHANICAL PARTS AND DISASSEMBLY
575 Rear panel
8010007140
575 PTT rubber
8930012400
PTT plates
8930011600
PTT holder
8930013110
PTT button
8930011910
PH No. 0-3 M26 ZK
8810004890
po;—s) —)] mois) as]
PH BO No. 0-3 M1.4x3.5 ZK
8810001710
—
a8
Plate (SP)
8930012760
PH BO No. 0-1 M2 x4
8810004800
575 Front ground plate
8930013300
SP plate
8930012100
562 Keyboard (A)
8010007150
573 MIC holder
8930011930
SP seal
893001 1580
@|@/@/|@/@O|O/O/O©|@|G/@/©|@|@/9/O
573 Casing seal (center)
8930012410
575 Front panel (A) (IC-32E)
575 Front panel (C) (IC-32A)
8210003300
8210003320
a fie ed ee ed ee” Ue Se er
Knob (MAIN) N128
8610004290
Knobs (SQUELCH, PWR/VOL) N126
8610004230
VR nuts (E)
8830000550
PH M2x6 ZK
8810004860
Connector seal
8930012420
575 Top panel-1 (IC-32A/AT)
8210003200
8210003210
575 Top panel (A)-1 (IC-32E)
Top seal
8930012390
Seal plate
8930012300
PH No. 0-3 M1.4*3.5 ZK
8810001710
PH No. 0-1 M2x* 2.5
8810004870
LCD holder
8930012190
LCD reflector
6910002060
PH M2~x4 Ni FE
8810005320
PH M2x3 Ni FE
8810004950
573 standoff
8930012081
PH M2~x8 Ni FE
8810004950
PH M2.6 x 10 Ni
8810004730
Plate
8930012280
Screw lug M2
8860000010
Contact holder
8930011880
BuH M26 Ni BS
8810002580
Latch plate (B)
8930013430
Sliding guide
8010006990
FH M2x4 Ni BS
8810002310
Release button (A)
8930008610
PH M2 x5 Ni
8810005310
@
20
a)
22)
23)
24)
2)
26)
wy)
29)
cD)
cD)
82)
83)
2)
$5)
86)
8)
89)
2)
)
2)
4)
Screw type
Screw head style
Connection spring
Screw: M23, etc. _Self-tapping screw: BO 2x 15, etc.
PH: Pan head FH: Flat head
BuH: Button head
o— 1
8930005980
Precision type screw: No. 0-1, etc.
¢ MAIN UNIT
¢ TOP PANEL
¢ CASE AND CHASSIS
¢ RF UNIT
ES o
2
2a is
2 2
®
Ae)
Solder poi
e LOGIC UNIT
e CONTACT HOLDER
e LCD
LCD
Contact strip
SRCN-575
° BP-3
LABELLED
NUMBER
DESCRIPTION
Rear plate (A)
ORDERING
NUMBER
8310004260
FH M2x5
8810002060
Rear case (3) F (supplied BP-3)
Rear case (3) B (optional BP-3)
8010002300
8010002780
Se INS | ook
Charging jack metal (A)
8930005740
Isolating washer (J)
8850000850
Charger jack metal (B)
8930005750
Charger jack metal (C)
8930006130
Isolating washer
Square nut
8850000310
8930007370
Plate spring
8930004670
LED (SCLC26UR)
5040000160
Sliding metal (D)
8930007220
PH BO 2x4
8810000980
FFH M2x8
Charger terminal (D)
8810004660
8930006240
Spring (A)
8930007220
Isolating seat
®
2)
®
®
©
©
®
®
OD)
@
iE)
©)
©)
©)
Front case (3) E (supplied BP-3)
Front case (3) A (optional BP-3)
8930005400
8010002290
8010002760
Name plate
8310002550
a eS eS ee Sm De = eS Se eS SS Cd ee Cad ee Ca Gee a ee
Charging metal
8010001920
®|O|O|©
;
PH BO 2x4
8810000980
Charging selector plate (B)
FFH M2~x 4 Ni
8930002150
8810004671
SOLOS ©
Nh } —/N| NM] —s] —
e BP-5A, BP-7, BP-8, BP-70
(ABELLED DESCRIPTION ORDERING
Name plate BP-5A 8310006970 1
Ce a SE or er ce errs acre ye ees cts ae ene eerie a eee oe
aNarhe piso BE gia we «A Pe ee ee 8310012080 =| tt” ‘leecaal
Front case (7) A (BP-5A, BP-7, BP-8) 8010002860 1
a Front casero? Wee cA eee ee go10007030—s—‘“‘O#;*‘<;‘:;é IMT OW.
® Charge jack (A) HECO779-01-030 [ 6450000240 {
@ LED (SLB23VR5F) 5040000390 1
6) Sliding metal (D) 8930007220 1
© PH BO 2x4 8810000980 4
® Charging terminal (D) ‘| 8930006240 E 1
4 Spring (A) | 8930007220 1
Q) FFH M2x8 8810004660 2
Rubber cap (for jack A) 8930001740 1
Rear case (7) B (BP-5A, BP-7, BP-8) | 3010002870 1
o Hear ase (9) B (BE 70 | nna | goioo07040—t—é‘l;’C#tS*é‘;*‘*;*# mA
@ FFH M2x4 Ni | 8810004671 D
i= Charging selector plate (B) (BP-5A, BP-7, BP-8) 8930002150 1
«3 Charging-celectonpiare@) (270) mi ae aeeneee g930012830 sid} tiduiia
Plate spring 8930004670 1
(5) Charger jack (B) HEC1737-01-020 6450000230 1
he PH BO 2x4 8810000980 2
(Dy) Charging metal a 8010001920 2
Rubber cap (for jack B) 8930001750 1
PH BO 2x15 ZK 8810004910 2
©)
@©00Q® © ©
©)
5-2 BATTERY PACK
¢ BP-2 AND BP-5
LABELLED
NUMBER DESCRIPTION
Rear plate (B) 8310004310
ay one hd eh nc i. 8010002750
Pane) BBP) fe ee! ACoGResde A re. tc)
Sliding metal (E) 8010004230
PH BO 2x4 8810000980
Oy Front case (3) A (BP-2) 8010002760
HomemetrAiees 5) 4 6-8) |! SOKOGGPS20 NA fd)
ay Name plate BP-2 8310002540
Name plate BP-5 8310002570
Charging metal 8010001920
—
—/|! ph} |
—_s+]}
one
i
PH BO 2x4 8810000980
Sponge (O) 8930001440
Charging selector plate (B) 8930002150
FFH M2~x4 Ni 8810004671
° BP-3
LABELLED ORDERING
NUMBER | DESCRIPTION NUMBER
Rear plate (A) 8310004260
FH M2x5 8810002060
Rear case (3) F (supplied BP-3) 8010002300
Rear case (3) B (optional BP-3) 8010002780
Charging jack metal (A) 8930005740
Isolating washer (J) 8850000850
Charger jack metal (B) 8930005750
Charger jack metal (C) 8930006130
Isolating washer 8850000310
Square nut 8930007370
Plate spring 8930004670
LED (SCLC26UR) 5040000160
Sliding metal (D) 8930007220
8810000980
PH BO 2x4
FFH M2x8 8810004660
Charger terminal (D) 8930006240
Spring (A) 8930007220
Isolating seat 8930005400
Front case (3) E (supplied BP-3) 8010002290
Front case (3) A (optional BP-3) 8010002760
Name plate 8310002550
Charging metal 8010001920
PH BO 2x4 8810000980
Charging selector plate (B) | 8930002150
®
@
®
®
©
©
®
®
®
®
®
@
®
®
@
a
®
@
@
FFH M2~x4 Ni 8810004671
SO©8@EQ8 ©
e BP-5A, BP-7, BP-8, BP-70
LABELLED
NUMBER DESCRIPTION
Name plate BP-5A
S)
Name plate BP-70
ORDERING
NUMBER
8310006970
8310012080
=
1
Front case (7) A (BP-5A, BP-7, BP-8)
Front case (9) A (BP-70)
8010002860
8010007030
Charge jack (A) HECO779-01-030
6450000240
LED (SLB23VR5F)
5040000390
Sliding metal (D)
8930007220
PH BO 2x4
8810000980
Charging terminal (D)
8930006240
Spring (A)
8930007220
FFH M2x8
8810004660
2)
®
®
©)
©
@
®
Rubber cap (for jack A)
8930001740
Rear case (7) B (BP-5A, BP-7, BP-8)
Rear case (9) B (BP-70)
8010002870
8010007040
FFH M2~x4 Ni
8810004671
Charging selector plate (C) (BP-70)
Charging selector plate (B) (BP-5A, BP-7, BP-8)
8930002150
8930012830
Plate spring
8930004670
Charger jack (B) HEC1737-01-020
6450000230
PH BO 2x4
8810000980
Charging metal
8010001920
Rubber cap (for jack B)
8930001750
Q\O|O|@|@/S| @ |®| ©
PH BO 2x15 ZK
S)
@ ©9802 © ©
i)
8810004910
@ ©
po} —} PO} RM Las) me] ot
SECTION 6 MAINTENANCE AND ADJUSTMENT
6-1 PLL ADJUSTMENT
TEST INSTRUMENTS REQUIRED MEASUREMENT CONNECTION LOCATION
(1) FREQUENCY COUNTER
® Frequency range : 100~500 MHz
© Sensitivity : 100 mV or better Eg
(2) DC VOLTMETER
e Input impedance : 50 kQ/DC or better
to [DC IN 13.8 V] jack
FREQUENCY AC POWER
(3) RF POWER METER (or 50 Q dummy load) COUNTER SUPPLY
© Minimum power rating: 10 W
e Frequency minimum : 450 MHz
® Impedance -50Q Loose couple to antenna.
© SWR : Less than 1.2: 1
(4) AC POWER SUPPLY
e Output voltage Saeed WHI DIC.
e Current capacity 76-4 IC-32A/AT/E
to R292, R303 DC
VOLTMETER
MEASUREMENT | eee
ADJUSTMENT ADJUSTMENT CONDITIONS VALUE
UNIT LOCATION UNIT | ADJUST
RF
LOCK 1 | ¢ Frequency display: Connect the DC THOS, U-VCO C510
VOLTAGE 430.00 MHz (except U.S.A.) voltmeter to R292.
440.00 MHz (U.S.A.)
e Receiving
2 | © Frequency display: Connect the DC sy W/ V-VCO L554
144.00 MHz voltmeter to R303.
® Receiving
REFERENCE e Frequency display: Loose couple the Same as the displayed RF C288
FREQUENCY 440.00 MHz (except U.S.A.) frequency counter frequency.
450.00 MHz (U.S.A.) to the antenna
e Transmitting connector.
RF UNIT
L554 Lock Voltage adj.
(Peeloff silver tape
when adjusting.)
C510 Lock Voltage adj.
(Peeloff silver tape
when adjusting.)
R303 Lock Voltage
measurement location
R292 Lock Voltage
measurement location
C288 Reference Frequency adj.
6-2 RECEIVER ADJUSTMENT
TEST INSTRUMENTS REQUIRED MEASUREMENT CONNECTION LOCATION
(1) STANDARD SIGNAL GENERATOR
e Frequency range : 100~500 MHz
© Output level SEO 17/ Clelnn. 6
ee STANDARD F
(0.1 uVvV~32 mV) SIGNAL [DC IN 13.8 V] jack AC POWER
GENERATOR SUPPLY
(2) DC VOLTMETER
e Input impedance : 50 kQ/V DC or better
(3) AC POWER SUPPLY
© Output voltage 7 sue NEIDXE
e Current capacity > 5A
IC-32A/AT/E
to J206 DC
VOLTMETER
MEASUREMENT Ae OC
| ADJUSTMENT ADJUSTMENT CONDITIONS VALUE
| UNIT LOCATION UNIT | ADJUST
i
UHF e Frequency display: Connect the DC Maximum
432.00 MHz (except U.S.A.) voltmeter to J206 sequence
442.00 MHz (U.S.A.) pin 10. L211
© Receiving L210
e Apply an RF signal to the antenna L208
connector. L201
Level: —87 dBm (10.0 pV)
Dev. : +3.5 kHz
Mod. : 1 kHz
© [SQL] control: Max. CCW*
SENSITIVITY
S-METER
VHF 1 | e Frequency display: Connect the DC Maximum Adjust in
SENSITIVITY 146.00 MHz (except Europe) voltmeter to J206 sequence
145.00 MHz (Europe) pin 10. L205
e Apply an RF signal to the antenna - L204
connector. L203
Level: —81 dBm (20.0 pV) L202
Dev. : 3.5 kHz
Mod. : 1 kHz
e Frequency display: FUNCTION | S/RF INDICATOR 2 dots MAIN
435.00 MHz (except U.S.A.) DISPLAY
445.00 MHz (U.S.A.)
e Apply an RF signal to the antenna
connector.
Level: —107 dBm (1.0 pV)
Dev. : +3.5 kHz
Mod. : 1 kHz
e Frequency display:
146.00 MHz (except Europe)
145.00 MHz (Europe)
¢ Apply an RF signal to the antenna
connector.
Level: —101 dBm (2.0 pV)
Dev. : +3.5 kHz
Mod. : 1 kHz
* CCW: Counterclockwise
RF UNIT
UHF Sensitivity
VHF Sensitivity adj. adj.
J206 (Pin 10)
UHF/VHF Sensitivity
L201 UHF Sensitivity adj. measurement location
MAIN UNIT
R739
— —snerer adj.
R738
6-3 TRANSMITTER ADJUSTMENT
TEST INSTRUMENTS REQUIRED MEASUREMENT CONNECTION LOCATION
(1) RF POWER METER
e Terminated type
e Measuring range : 0.1~10 W FM to [MIC] jack Te
e Frequency range : 100~500 MHz DEVIATION
ENERATOR
e Impedance 502 METER GEN
e SWR : Less than 1.2: 1
ATTENUATOR:
more than 40 dB
RF POWER
METER
(2) FM DEVIATION METER
® Frequency range : 100~500 MHz
e Measuring range 7 OSE 10%KHZ
to
[DC IN 13.8 V] jack
AC POWER
SUPPLY
(3) AUDIO GENERATOR
e Frequency range : 200~2000 Hz
e Output range >: 2~200 mV
(4) ATTENUATOR
e Attenuation ratio : 40 or 50 dB
e Input power rating : At least 10 W
(5) AC POWER SUPPLY
e Output voltage whee NOLS:
e Current capacity 25 A
MEASUREMENT CIEE
ADJUSTMENT ADJUSTMENT CONDITIONS VALUE
UNIT LOCATION UNIT | ADJUST
OUTPUT 1 | ¢© Frequency display: Connect the RF 5.0 R314
POWER 435.00 MHz (except U.S.A.) power meter to the
445.00 MHz (U.S.A.) antenna connector.
e [H/L] switch: High
® Transmitting
2 | e Frequency display: R320
146.00 MHz (except Europe)
145.00 MHz (Europe)
DEVIATION 1 | e Frequency display: Connect the +4.8 kHz MAIN R779
435.00 MHz (except U.S.A.) deviation meter to
445.00 MHz (U.S.A.) the antenna
e Apply an AF signal to the [MIC] connector via the
jack. attenuator.
50 mV/1 kHz (except U.S.A.)
110 mV/1 kHz (U.S.A.)
© Set the deviation meter.
HEE eoOurlZ
LPF : 20 kHz
De-emphasis: OFF
Detector : (P-P)/2
2 | © Frequency display: +4.8 kHz R781
146.00 MHz (except Europe)
145.00 MHz (Europe)
a
e Frequency display: Connect the
TONE 445.00 MHz (U.S.A.) deviation meter to
DEVIATION 435.00 MHz (Asia) the antenna
(IC-32AT only) e Apply no AF signal to the [MIC] connector via the
jack.
e Set the deviation meter.
HPF HORE
EBE : 20 kHz
De-emphasis: OFF
Detector : (P-P)/2
e Set the tone frequency to 88.5 Hz.
attenuator.
TRANSMITTER ADJUSTMENT (CONTINUED)
ADJUSTMENT
MEASUREMENT POINT
VALUE
UNIT LOCATION UNIT | ADJUST
Connect the +3.5 kHz MAIN R751
deviation meter to
the antenna
connector via the
attenuator.
3.5. KHz MAIN R748
ADJUSTMENT CONDITIONS
ADJUSTMENT
DTMF TONE
DEVIATION
(IC-32AT only)
e Frequency display:
445.00 MHz (U.S.A.)
435.00 MHz (Asia)
e Push and hold the [D] key while
transmitting.
TONE CALL
DEVIATION
(IC-32E only)
Connect the
deviation meter to
the antenna
connector via the
attenuator.
e Frequency display:
435.00 MHz
e Push and hold the [T. CALL]
switch.
RF UNIT
R314 Output
Power adj.
R320 Output Power adj.
|
|
1.
E
MAIN UNIT
R779
Deviation adj.
R751 DTMF Tone ————————"yxerees R781
Deviation adj.
R748 Tone Call
Deviation adj.
(IC-32E only)
R601 Subaudible Tone Deviation adj.
The above pictures show the IC-32AT.
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SECTION BOARD LAYOUTS
7-1 EF UNIT
to MAIN UNIT J708
SQUELCH PWR/ VOL MAIN DIAL
FOIL SIDE
COMPONENT SIDE
7-2 LOGIC UNIT
LR40872 (IC-32AT) |C901 uPD75308GF-100-3B9 1C902
(DTMF ENCODER) (CPU)
SINGLE
TONE TONE wes By A ae SOY wet es
NC OUT INHIBIT
fe] fer] Pe] fe] fe] fe] el [Ge]
P71/KR5S
[8 ] P72/KR6
$12 P7O/KR4
$13 P63/KR3
S14 P62/KR2
$15 P61/KRI
'S: S16 P60/KRO
Siiv x2
S18 x1
MOB ERBENG CAYCE CO wre
V+ XMRT COL COL COL V- osc OSC S21 xT!
SWITCH | 2 3 IN OUT $22 Voo
$23 P33
$24/BPO P32
$25/BP1 P31/SYNC
S-8054ALB-LM IC903 $26/BP2 P30/LCDCL
(RESET) 529 /8P4 pee/Pct
$29/BP5 | P21
S30/BP6 P20/PTOO
$31 /BP7 P13/T10
COMO Pi2/ INT2
COM) PII/ INT)
cOM2 PIO/INTO
COM3 PO3/S1/SB1
OUT Vop Vss
PO1/SCK
Vice
P40
P41
P42
P43
Vss
P50
PSt
P52
P53
~ PO02/SO/SBO
BIAS
Vico
Vici
POO /INT4
LA6393M IC904 TC4S71F |IC905, IC906
(DUAL COMPARATOR) (OR GATE)
INPUT2 INPUT2
Vee OUTPUT2 (-) (+)
oe
OUTPUT! INPUT! INPUT] VEE
(=) (+)
2SA1362 GR 2SB798 DK 2SC4081 S RN1404
Q908 Q906 Q905, Q907, Q909
Q910
BASE BASE BASE
COLLECTOR COLLECTOR COLLECTOR 2SC4081 ) COLLECTOR
EMITTER EMITTER (IC-32AT) EMITTER
Q901, Q902,
Symbol: AEG Symbol: DK Q903, Q904 Symbol: XD
BASE
COLLECTOR
EMITTER
Symbol: BS
COMPONENT SIDE
E
aio 4
=| -=|c
EEE
a] PEF
x) 4 Tle) i
zl 2} HO} z1°] 2) 2
wo
El +
ole
Ele
Ele
aja
FOIL SIDE
Zz
fe)
oo.
=
‘e)
1)
7-2 LOGIC UNIT
LR40872 (IC-32AT) |C901
(DTMF ENCODER)
SINGLE
TONE TONE ROW ay a ais wets ox
OUT ta. 1
re] [7] [ie
Woecs Ga ena (al
O
HAS AEE Eee
V+ V+ XMRT COL COL COL V- OSC OSC
SWITCH | 2 3 IN OUT
S-8054ALB-LM |C903
(RESET)
OUT Vopd
LA6393M |C904
(DUAL COMPARATOR)
INPUT2 Ne
Vee OUTPUT2 (-) (+
INPUT! INPUT] VEE
= (+)
OUTPUT}
2SA1362 GR 2SB798 DK 2SC4081 S
Q908 Q906 Q905, Q907,
Q910
BASE BASE
COLLECTOR COLLECTOR COLLECTOR 2SC4081 Ss
EMITTER EMITTER (IC-32AT)
Q901, Q902,
Symbol: AEG Symbol: DK Q903, Q904
BASE
COLLECTOR
EMITTER
Symbol: BS
LPD75308GF-100-3B9 IC902
(CPU)
$i2
$13
$14
$15:
S16
Sle
$18
S19
$20
S2\
S22
$23
$24/BPO
$25/8P 1
S26/BP2
S$27/BP3
$28/BP4
$29/BP5
S30/BP6
$31 /BP7
COMO
COM!
comM2
CcOM3
TC4S71F 1C905, IC906
(OR GATE)
P73/KR7
POO/INT4
PO1/SCK
~ PO2/SO0/SBO
P72/KR6
P71/KR5
P70/KR4
P63/KR3
P62/KR2
P61/KRI
P60/KRO
x2
xt
NC
xT2
xT1
Voo
P33
P32
P31/SYNC
P30/LCDCL
P23/BUS
P22/PCL
P2t
P20/PTOO
P13/T10
Pi2/ INT2
Pit1/ INT1
PIO/INTO
PO3/S1/SB!
RN1404
Q909
BASE
COLLECTOR
EMITTER
Symbol: XD
COMPONENT SIDE
eecee=
AUS
_saa*esee Se
ded
ea oe te
* on
a
— >
=
_
-=
——
Ss =
Ge eee te
Ea ah
.
~_
hea
45
Ven
wwe
we
ee,
ra
oe ee 2
1]
60 aE, haan ae
Pe De bereh On i it 2 Pee
1 Won aaatn le
ciated *
Fy A: iis =~ a i A
1 ml et A Rl: Ng Mg
es
WH FOIL SIDE
yy COMPONENT SIDE
FOIL SIDE
1SS184
D915 (IC-32E: Italy)
D916 (IC-32E)
Ly
Symbol: B3
1S$S193
D905
D909 (IC-32A/AT: U.S.A., Asia) etl SItUyy i.
D910 (IC-32A/AT: U.S.A.) on 3 Stee = ey Aiwa
D915 (IC-32E : Europe) f We 4 “ Ade 1 8 x803
Pen ae he Fite od lid tll
IY
Symbol: F3
1SS196
D915 (IC-32A: Australia),
D916 (IC-32A/AT),
D918
L
Symbol: G3
DAP202U
D906
by
Symbol: P
DWA010
D901 (IC-32AT)
D902 (IC-32AT)
D903, D904
UT
Symbol: BM
FOIL SIDE
_ COMPONENT SIDE
7—3
7-3 MAIN UNIT
BA526 !C702
(AUDIO POWER AMP)
uPD4094BG C701
(8-STAGE SHIFT AND STORE BUS REGISTER)
OUTPUT
Vopp ENABLE Q5 Q6 Q7
fel’ tel Iw] (ol: (et seed
IN RIPPLE
FILTER
—»——" Vcc OUT GND FILTER NFB
PHASE
UPD4096UBG 1IC703
(HEX INVERTER)
TC5082P-G (IC-32E) I|C704
(OSCILLATOR AND 12 STAGE DIVIDER)
LUT [2] ey sy eT Ts
XTour XT XT Qi2 Vpop Qi Qio Q@9 GND
M5218FP |C706
(LOW NOISE DUAL OPERATIONAL AMPLIFIER)
$81250HG |C705
(3-TERMINAL 5 V REGULATOR)
TK10420M 1C707
(FM IF IC)
SQUE-
RF AUDIO SCAN -LCH FILTER FILTER DETCTOR
LN GND NC MUTECONTROL IN OUT NC IN OUT
20 13
fs] fie] fer] fe] fel fel fis) ie] fn]
@
LIEI EG ete Ie ey Tey”
LOCAL CRYSTAL NC MIXER Vcc LIMITER DE NC LIMITER QUAD
IN Osc OUT IN COUPLING OUT IN
1SS187 DAN202U DAP202U HSM88AS MA862
D704 D701, D702, D713 (IC-32AT) D703, D705 D706, D708
D707, D709,
D710, D711,
D712 (IC-32E),
D714, D716
Symbol: D3 Symbol: P Symbol: C1 Symbol: M11
Symbol: N
¢ MAIN UNIT
J7il
from RF UNIT P204
J703
fromRF UNIT P203 ( J207 )
J705
from SPE
MICROP!
Fiwr [one [oun frst fs fpara] ox [lost] os res
FUNCTION
2SB909M R
Q701, Q712,
Q714
B
BASE
COLLECTOR
EMITTER
2SJ106 GR
Q703, Q722,
Q723
SOURCE
GATE
ORAIN
Symbol: VG
FOIL SIDE
COMPONENT SIDE
2S8C2712 BL
Q708,
Q719 (IC-32AT)
BASE
COLLECTOR
EMITTER
Symbol: LL
DTA144EU
Q718 (IC-32E)
BASE
COLLECTOR
EMITTER
Symbol: 16
7-3 MAIN UNIT
BA526 |C702
(AUDIO POWER AMP)
uPD4094BG 1C701
(8-STAGE SHIFT AND STORE BUS REGISTER)
OUTPUT
ENABLE Q5 Qs
©] fel fel fal [al [ol
Vop
M—— Vee OUT GND FILTERNFB IN RIPPLE
PHASE FILTER
uPD4096UBG 1C703
(HEX INVERTER)
TC5082P-G (IC-32E) 1C704
(OSCILLATOR AND 12 STAGE DIVIDER)
M5218FP |C706
(LOW NOISE DUAL OPERATIONAL AMPLIFIER)
$81250HG C705
(3-TERMINAL 5 V REGULATOR)
TK10420M C707
(FM IF IC)
SQUE-
RF AUDIO SCAN -LCH FILTER FILTER DETCTOR
IN| GND NC MUTECONTROL IN OUT NC IN OUT
18 17 15 14
e)
RgCESESCS SESE COREARCIBES
LOCAL CRYSTAL NC MIXER Vcc LIMITER DE NC LIMITER QUAD
IN OSC OUT IN COUPLING OUT IN
1SS187 DAN202U DAP202U HSM88AS MA862
D704 D701, D702, D713 (IC-32AT) D703, D705 D706, D708
D707, D709, ,
D710, D711,
D712 (IC-32E),
D714, D716
Symbol: D3 Symbol: P Symbol: C1 Symbol: M11
Symbol: N
¢ MAIN UNIT
J7i1
from RF UNIT P204
J703
to LOGIC UNIT
fromRF UNIT P203 ( J207 )
J705
mic = [mic |sP-+ | sP— |
SPEAKER AND
MICROPHONE P90!
from
Fint [one [uum Pst frsuparal ox [lost] 08 Ress
J702
J7Ol-
PI5I (JI52)
from RF UNIT P202 ( J206)
from PTT BOARD
P 704 (J7I0)
4704[LamP|Mon! |runc | pr [¢no |
from EF UN
PI5I (JIS!
[s-aF[r +8 [eno [vmoo] eno [umoo|vcoe]+ss | eno [vee |
[ves [eno [urs] [se+|srax] mic [+5 [rico fext |
EP) FOIL SIDE
> COMPONE
from RF UNIT P2O0I ( J205 )
NT SIDE
e PTT BOARD
[a
FUNCTION
MONITOR
2SA1162 GR
Q716, Q724
BASE
COLLECTOR
EMITTER
Symbol: SG
28C3770 3
Q710, Q711
BASE
COLLECTOR
EMITTER
Symbol: JY3
DTC144EU
Q725
BASE
COLLECTOR
EMITTER
Symbol: 26
Laer roa |
to MAIN UNIT ( J 704 )
2SA1576 S
Q720
BASE
COLLECTOR
EMITTER
Symbol: FS
2SC4081 S
Q702, Q705,
Q706, Q709,
Q713, Q715,
Q717
BASE
COLLECTOR
EMITTER
Symbol: BS
BASE 1 COLLECTOR 1
EMITTER
BASE 2 COLLECTOR 2
Symbol: W1
FOIL SIDE
ee
2SB909M R
Q701, Q712,
Q714
B
BASE
COLLECTOR
EMITTER c
2SJ106 GR
Q703, Q722,
Q723
SOURCE
GATE
ORAIN
Symbol: VG
- COMPONENT SIDE
28C2712 BL
Q708,
Q719 (IC-32AT)
DTA144EU
Q718 (IC-32E)
BASE
COLLECTOR
EMITTER
Symbol: 16
7-4 RF UNIT (1)
uPD4094BG 1C202
(8-STAGE SHIFT AND STORE BUS REGISTER)
OUTPUT
Vop ENABLE
fe] fs] fv]
Borin wc
O
Gee eee
STROBE SERIAL CLOCK QI Q2 Q3 Vss
SC-1080 1C207
(POWER MODULE)
2SA1362 GR 2SB798 DK 2SC3770 3 2SC3772 3 2SC4081 S
Q207, Q208 Q226 Q201 Q203, Q209, Q227
Q210, Q211,
BASE BASE BASE Q221 : Q222. BASE
COLLECTOR COLLECTOR COLLECTOR COLLECTOR Q223, Q229 COLLECTOR
EMITTER EMITTER EMITTER EMITTER
BASE :
Symbol: AEG Symbol: DK Symbol: JY3 Seer Symbol: BS
EMITTER
Symbol: LY3
2SJ106 GR 2SK209 BL 2SK209 Y 2SK302 Y 2SK536
Q225 Q204 Q218 Q202 Q215, Q216,
Q230, Q236
SOURCE SOURCE SOURCE DRAIN GATE
GATE GATE GATE SOURCE SOURCE
DRAIN DRAIN DRAIN GATE DRAIN
Symbol: VG Symbol: XL Symbol: XY Symbol: TY Symbol: CP
DTA144EU DTA144TU DTC124EU DTC144EU DTC144TU
Q244, Q250 Q245 Q247 Q243, Q251, Q233, Q242
Q252
BASE BASE BASE BASE BASE
COLLECTOR COLLECTOR COLLECTOR COLLECTOR COLLECTOR
EMITTER EMITTER EMITTER EMITTER EMITTER
Symbol: 16 Symbol: 96 Symbol: 25 Symbol: 26 Symbol: 06
FMA3 FM4 FMS1
Q231 Q232 Q228
BASE 1 COLLECTOR 1 BASE 1 COLLECTOR 1 BASE1 COLLECTOR 1
EMITTER EMITTER EMITTER
BASE 2 COLLECTOR 2 BASE 2 COLLECTOR 2 BASE2 COLLECTOR2
Symbol: A3 Symbol: A4 Symbol: SI
COMPONENT SIDE
1SS153
D219, D223
it,
Symbol: AQ
Symbol: BA
Symbol: BE
DA204U »
D224
Symbol: K
DAN202U
D222, D225
Symbol: N
MA334 B
D202, D203,
D204
se
Symbol: 6D82
MA862
D201, D205,
D212, D2t5,
D216, D218
Symbol: M11
7-4 RF UNIT (1)
uPD4094BG 1C202
(8-STAGE SHIFT AND STORE BUS REGISTER)
SC-1080 1C207
(POWER MODULE)
OUTPUT
Vop ENABLE Q5 a6 Qs as’
10
fe] fel fo
[ie] fel fe] id
O
Cee Gy Sees
ts
STROBE SERIAL CLOCK QI Q2 Q3 Q4 Vss
IN
2SA1362 GR 2SB798 DK 2SC3770 3 2SC3772 3 2SC4081 S
Q207, Q208 Q226 Q201 Q203, Q209, Q227
Q210, Q211,
BASE BASE BASE Q221 : Q222, BASE
COLLECTOR COLLECTOR COLLECTOR COLLECTOR Q223, Q229 COLLECTOR
EMITTER EMITTER EMITTER EMITTER
BASE .
COLLECTOR
Symbol: AEG Symbol: DK Symbol: JY3 Symbol: BS
EMITTER
Symbol: LY3
2SJ106 GR 2SK209 BL 2SK209 Y 2SK302 Y 2SK536
Q225 Q204 Q218 Q202 Q215, Q216,
Q230, Q236
SOURCE SOURCE SOURCE DRAIN GATE
GATE GATE GATE SOURCE SOURCE
DRAIN DRAIN DRAIN GATE DRAIN
Symbol: VG Symbol: XL Symbol: XY Symbol: TY Symbol: CP
DTA144EU DTA144TU DTC124EU DTC144EU DTC144TU
Q244, Q250 Q245 Q247 Q243, Q251, Q233, Q242
Q252
BASE BASE BASE BASE BASE
COLLECTOR COLLECTOR COLLECTOR COLLECTOR COLLECTOR
EMITTER EMITTER EMITTER EMITTER EMITTER
Symbol: 16 Symbol: 96 Symbol: 25 Symbol: 26 Symbol: 06
FMA3 FM4 FMS1
Q231 Q232 Q228
BASE 1 COLLECTOR 1 BASE 1 COLLECTOR 1 BASE1 COLLECTOR 1
EMITTER EMITTER EMITTER
BASE 2 COLLECTOR 2 BASE 2 COLLECTOR 2 BASE2 COLLECTOR2
Symbol: A3 Symbol: A4 Symbol: SI
COMPONENT SIDE
ANT
‘7 FOIL SIDE
COMPONENT SIDE
FOIL SIDE
FOIL SIDE
COMPONENT SIDE
‘—T7
1SS153
D219, D223
IY
Symbol: AQ
1SS154
D217
|
Symbol: BA
DAN202U
D222, D225
i}
Symbol: N
MA334 B
D202, D203,
D204
He
qi}
Symbol: 6D82
MA862
D201, D205,
D212, D215,
D216, D218
La
Symbol: M11
7-5 RF UNIT (2)
TC9181F 1C203
MB504LPF-G-BND 10204
(PLL SYNTHESIZER)
(SWALLOW COUNTER)
Voo Doi Doz H NC NC NC LD G_ ST DATA
‘pal bl fal fe] el fel fel fir fe) [i] fe) [3
PLL2001S 1C205
SC-1081 1C206
(PLL SYNTHESIZER)
(POWER MODULE)
GND OUTPUT
2SA1298 Y
2SA1576 S 28C2712 BL 2SC3772 3 2SC4081 S
Q248 Q220 Q212 Q224 Q213, Q217,
Q219
BASE BASE BASE BASE BASE
COLLECTOR COLLECTOR COLLECTOR COLLECTOR COLLECTOR
EMITTER EMITTER EMITTER EMITTER EMITTER
Symbol: lY Symbol: FS Symbol: LL Symbol: LY3 Symbol: BS
RN1402 RN1403 RN1404 UN511E UN521E
Q249 Q246 Q241 Q237, Q238 Q239
BASE BASE BASE BASE BASE
COLLECTOR COLLECTOR COLLECTOR COLLECTOR COLLECTOR
EMITTER EMITTER EMITTER EMITTER EMITTER
Symbol: XB Symbol: XC Symbol: XD Symbol: 6N Symbol: 8N
DAN202U DWA010
D221 O2is
Symbol: N Symbol: BM
PLL BOARD
COMPONENT SIDE
FOIL SIDE
) > COMPONENT SIDE
DATA GND CK +5 SSF VLV VSS VIN
FOIL SIDE
FOIL SIDE
COMPONENT SIDE
(GND) (X)(+5S) (UIN) (ULV) (PLSL)
(ULIN) (PLSH)
MODULE BOARD
COMPONENT SIDE
7-6 U-VCO UNIT
UOUT GND
|
(GND)
2SC3356 R25
Q502
BASE
COLLECTOR
EMITTER
Symbol: R25
MA334 B
D501
—
] i
Symbol: 6D82
U+5S GND
(ULV) (S-MD) (GND)
28C3772 3
Q501, Q503
BASE
COLLECTOR
EMITTER
Symbol: LY3
MA862
D502
Symbol: M1]
7—10
UOUT GND
a
(GND)
FOIL SIDE
COMPONENT SIDE
RN1403
Q504
BASE
COLLECTOR
EMITTER
Symbol: XC
7-7 V-VCO UNIT
COIL BOARD
V OUT2 GND VLV V+5S VOUT1 GND
( GND ) (MOD) (VR+5)(VT+5) (GND )
FOIL SIDE
COMPONENT SIDE
2SC3772 3 2SK302 Y
Q551,,0553 Q552
BASE DRAIN
COLLECTOR SOURCE
EMITTER GATE
Symbol: LY3 Symbol: TY
1$S154 MA333 MA334 B MA862
D555 D553 D552, D554 D551
—1kt— = ie
Symbol: BA Symbol: 6C83 Symbol: 6D82 Symbol: M11
74
7-8 TONE UNIT (IC-32AT)
$7116A |C601 uPD4094BG |C602
(PROGRAMMABLE TONE GENERATOR) (8-STAGE SHIFT AND STORE BUS REGISTER)
OUTPUT
Voo ENABLE Q5 Qs Qs
STROBE SERIAL CLOCK QI 2
IN
from
MAIN UNIT
P704 (J706) P704 (J707)
9) COMPONENT SIDE
7—12
SECTION 8
PARTS LIST
[EF UNIT]
DESCRIPTION PART NO.
Diode 1$S133
Zener RD20E B2
Variable Resistor 1OKQ A RKO97111101NA
Variable Resistor 10kQ B RKO971110051A
(IC-32A/AT)
Variable Resistor 10kQ B RK0971114003A
(IC-32E)
Ceramic 47 pF 50 V
Ceramic 47 pF 50 V
Ceramic 47 pF 50 V
Relay OUC-SH-114D
TZB-PO5H-A1
TZB-PO5H-A1
Connector
Connector
Connector PI28A10F
SRBM1L040A
Encoder
P.C. Board
B-1617B
[LOGIC UNIT]
DESCRIPTION PART NO.
IC LR40872 (IC-32AT)
IC uPD75308GF-100-3B9
IC S-8054ALB-LM
IC LA6393M
IC TC4S71F
TC4S71F
Transistor 2SC4081 S (IC-32AT)
Transistor 2SC4081 S (IC-32AT)
Transistor 2SC4081 S (IC-32AT)
Transistor 2SC4081 S (IC-32AT)
Transistor 2SC4081 S
Transistor 2SB798 DK
Transistor 2SC4081 S
Transistor 2SA1362 GR
Transistor RN1404
Transistor 2SC4081 S
DWA010 (IC-32AT)
Diode DWA010 (IC-32AT)
Diode DWA010
Diode DWA010
Diode 1SS193
Diode DAP202U
Diode 1$S254
(IC-32A/E: Australia, Europe)
[LOGIC UNIT]
DESCRIPTION PART NO.
Diode 1SS193 (IC-32A/AT: U.S.A., Asia)
Diode 1$S193 (IC-32A/AT: U.S.A.)
Diode 1SS254
Diode 1$S254
Diode 1SS193 (IC-32E: Europe)
Diode 1SS184 (IC-32E: Italy)
Diode 1$S196 (IC-32A: Australia)
Diode 1SS$184 (IC-32E)
Diode 1SS196 (IC-32A/AT)
Diode 188196
Ceramic Resonator CSAC3.58MGC300CD (IC-32AT)
Crystal CR227 (4.1125 MHz)
Resistor 82 kQO MCR10
Resistor 82 kQ MCR10
Resistor 82 kQ MCR10
Resistor 82 kQ MCR10
Resistor 10 kQ MCR10
Resistor 47 kQ MCR10
Resistor 47 kQ MCR10
Resistor 47 kQ MCR10
Resistor 1 MQ MCR10
Resistor 47 kQ MCR10 (IC-32AT)
Resistor 82 kQ MCR10 (IC-32AT)
Resistor 82 kQ MCR10 (IC-32AT)
Resistor 82 kQ MCR10 (IC-32AT)
Resistor 82 kQO MCR10 (IC-32AT)
Resistor 1 MQ MCR10 (IC-32AT)
Resistor 1 MQ MCR10 (IC-32AT)
Resistor 1 MQ MCR10 (IC-32AT)
Resistor 1 MQ MCR10 (IC-32AT)
Resistor 150 kQ MCR10
Resistor 150 kQ MCR10
Resistor 150 kQ MCR10
Resistor 150 kQ MCR10
Resistor 1 MQ MCR10
Resistor 1 MQ MCR10
Resistor 330 kQ MCR10
Resistor 390 kQ MCR10
Resistor 100 kQ MCR10
Resistor 100 kQ MCR10
Resistor 2.2 kQ MCR10
Resistor 1.5 kQO MCR10
Resistor 220 Q MCR10
Resistor 1.2 MQ MCR10
Resistor 100 kQ MCR10
Resistor 100 kQ MCR10
Resistor 47 kQ MCR10
Resistor 1.2 MQ MCR10
Resistor 1 MQ MCR10
Ceramic 0.001 uF GRM4O0 (IC-32AT)
Ceramic 0.1 UF GRM40 F (IC-32AT)
Ceramic 30 pF GRM40 SL 50PT
(IC-32AT)
Ceramic 30 pF GRM40 SL 50PT
(IC-32AT)
Ceramic 0.001 pF GRM40
Ceramic 15 pF GRM40
Ceramic 15 pF GRM40
Ceramic 330 pF GRM40 CH
Ceramic 0.001 uF GRM40
Ceramic 47 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.1 pF GRM40 F
Ceramic 470 pF 50 V
[LOGIC UNIT]
| REF. NO. | DESCRIPTION PART NO.
C914 Ceramic 0.01 pF GRM40 F
Ceramic 0.001 nF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF ~ GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Connector PI28A04F
SLN-210VC
HRS-3060A-G40
HRS-3060A-G40
LD-BU9246J
Lamp
Lamp
Microphone KUC2023-01-006
Speaker Si36D04
P.C. Board B-1712D
F.P.C Board B-1622B
LCD Contact Strip SRCN-575
[MAIN UNIT]
| REF. No. | DESCRIPTION PART NO.
IC UPD4094BG
IC BA526
IC uPD4069UBG
IC TC5082P-G (IC-32E)
IC $81250HG
IC M5218FP
TK10420M
Transistor 2SB909M R
Transistor 2S8C4081 S
FET 2SJ106 GR
Transistor 2SC4081 S
Transistor 2S8C4081 S
Transistor 28C2712 BL
Transistor 2SC4081 S
Transistor 2S8C3770 3
Transistor 2SC3770 3
Transistor 2SB909M R
Transistor 2SC4081 S
[MAIN UNIT]
| REF.NO. | DESCRIPTION PART NO.
Q714 Transistor 2SB909M R
Transistor 2SC4081 S
Transistor 2SA1162 GR
Transistor 2804081 S
Transistor DTA144EU (IC-32E)
Transistor 28C2712 BL (IC-32AT)
Transistor 2SA1576 S
Transistor FMW1
FET 2SJ106 GR
melp 2SJ106 GR
Transistor 2SA1162 GR
Transistor DTC144EU
DAN202U
Diode DAN202U
Diode HSM88AS
Diode 1SS187
Diode HSM88AS
Diode MA862
Diode DAN202U
Diode MA862
Diode DAN202U
Diode DAN202U
Diode DAN202U
Diode DAN202U (IC-32E)
Diode DAP202U (IC-32AT)
Diode DAN202U
DAN202U
Ceramic CFUM455E
CR214 (30.42 MHz)
CDB455C7A
CR251 (7.168 MHz) (IC-32E)
Crystal
Discriminator
Crystal
820 Q
Resistor MCR10
Resistor 680 Q MCR10
Resistor 4.7 kQ MCR10
Resistor 1MQ MCR10
Resistor 100 kQ MCR10
Resistor 1kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 39 kQ MCR10
Resistor 39 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 150 kQ MCR10
Resistor 2.2 k<Q MCR10
Resistor 15 kQ MCR10
Resistor 27 kQ MCR10
Resistor 330 kQ MCR10
Resistor 47 kQ MCR10
Resistor 560 Q MCR10
Resistor 3.3 kN MCR10
Resistor 680 Q MCR10
Resistor 1MQ MCR10
Resistor 100 kQ MCR10
Resistor 22 kQ MCR10
Resistor 6.8 kQ MCR10
Resistor 2.2 kQ MCR10
Resistor 470Q MCR10
Resistor 330 kQ MCR10
Resistor 100 kQ MCR10
Resistor 5.6 kQ MCR10
Resistor 1.5kQ MCR10
Resistor 47 kQ MCR10
Resistor 1.5 kQ MCR10
Resistor 680 kQ MCR10
Resistor 10 kQ MCR10
Resistor 100 kQ MCR10
Resistor 47 kQ MCR10
Trimmer 22kQ B RHO4A3AJ4J01A
[MAIN UNIT]
} REF. NO. | DESCRIPTION PART NO.
. Trimmer 22kQ B RHO4A3AJ4J01A
Resistor 560 kQ MCR10
Resistor 1.5 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 1.5 kO MCR10
Resistor 4.7 kQ MCR10
Resistor 10 kQ MCR10
Resistor 5.6 kQ MCR10
Resistor 22 kQ MCR10
Trimmer 10kQ B RHO4A3A14J02A
(IC-32E)
Resistor 47 kQ MCR10 (IC-32E)
Resistor 150 kQ MCR10 (IC-32AT)
Trimmer 10kQ B RHO4A3A14J02A
(IC-32AT)
Resistor 33 kQ MCR10 (IC-32AT)
Resistor 22 kQ MCR10 (IC-32AT)
Resistor 100 kQ MCR10 (IC-32AT)
Resistor 4.7 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 68 kQ MCR10
Resistor 2.2 MQ MCR10
Resistor 100 kQ MCR10
Resistor 100 kQ MCR10
Resistor 2.2 MQ MCR10
Resistor 68 kQ MCR10
Resistor 220 kQ MCR10
Resistor 82 kQ MCR10
Resistor 82 kQ MCR10
Resistor 270 kQ MCR10
Resistor 220 kQ MCR10
Resistor 120Q MCR10
(IC-32A/AT/E: except U.S.A.)
Resistor 2709 MCR10
(IC-32A/AT: U.S.A.)
Resistor 240 kQ MCR10
Resistor 180 kQ MCR10
Resistor 47 kQ MCR10
Resistor 1kQ MCR10
Resistor 180 kQ MCR10
Resistor 10 kQ MCR10
Resistor 4709 MCR10
Trimmer 47kQ B RHO0421CS4J08A
Trimmer 47kQ B RHO0421CS4J08A
Resistor 33 kQO MCR10
Resistor 220 kQ MCR10
Resistor 2.2 kO MCR10
Resistor 22 kQ MCR10
Resistor 8.2 kQ MCR10
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.1 YF GRM40 F
Ceramic 0.01 pF GRM40 B 25PT
Electrolytic 100 pF 6.3 V RC2 D=5.0
Ceramic 470 pF GRM40
Electrolytic 2.2F 35 V MS5 D=3.0
Ceramic 0.001 uF GRM40
Electrolytic fils 50V MS5
Electrolytic 47 UF 16 V RC2 D=5.0
Ceramic 0.1 UF GRM40 F
Ceramic 47 pF GRM40
Ceramic 0.001 uF GRM40
Electrolytic 47 uF 16 V RC2 D=5.0
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.1 pF GRM40 F
Ceramic 0.1 YF GRM40 F
Ceramic 0.001 nF GRM40
Ceramic 0.0022 uF GRM40
[MAIN UNIT]
DESCRIPTION PART NO.
Ceramic 0.01 YF GRM40 B 25PT
Ceramic 0.01 YF GRM40 B 25PT
Ceramic 0.1 UF GRM40 F
Ceramic 0.001 uF GRM40
Ceramic 0.01 pF GRM40 B 25PT
Tantalum 0.047 uF 863385 V OSV
Ceramic 33 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Electrolytic 0.22 UF 50 V MS5
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 82 pF GRM40
Ceramic 0.1 YF GRM40 F
Ceramic 0.1 UF GRM40 F
Ceramic 0.001 uF GRM40
Ceramic 18 pF GRM40
Ceramic 56 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Tantalum 2.2 UF 16V ODN
Ceramic 0.1 WF GRM40 F
Ceramic 100 pF GRM40
Ceramic 0.1 UF GRM40 F
Ceramic 470 pF GRM40
Ceramic 100 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.1 pF GRM40 F
Ceramic 0.1 WF GRM40 F
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.1 LF GRM40 F .
Electrolytic 2.2 UF 35 V MS5 D=3.0
Ceramic 0.1 UF GRM40 F
Electrolytic 4.7 UF 16V MS5
Ceramic 0.1 pF GRM40 F
Ceramic 47 pF GRM40 (IC-32E)
Ceramic 10 pF GRM40 (IC-32E)
Ceramic 10 pF GRM40 (IC-32E)
Ceramic 0.001 uF GRM40 (IC-32E)
Electrolytic 0.1 UF 50 V_ MS5 (IC-32E)
Electrolytic 4.7 UF 16 V MSS5 (IC-32AT)
Ceramic 0.1 UF GRM40 F (IC-32AT)
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Electrolytic 47 uF 6.3 V RC2 D=4.0
Ceramic 0.001 uF GRM40
Electrolytic 47 uF 6.3 V RC2 D=4.0
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Electrolytic 47 uF 6.3 V RC2 D=4.0
Ceramic 0.001 pF GRM40
Electrolytic 47 uF 6.3 V RC2 D=4.0
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Electrolytic 22 UF 16 V RC2 D=4.0
Ceramic 0.001 uF GRM40
Electrolytic 47 uF 16 V RC2 D=5.0
Ceramic 100 pF GRM40
Electrolytic 0.47 UF 50V MS5
Electrolytic 0.47 UF 50V MS5
Tantalum 1 UF 16V SV
Ceramic 0.001 uF GRM40 SL 5SOPT
Ceramic 0.0022 uF GRM42-6 SL 50PT
Electrolytic 4.7 UF 16V MS5
Ceramic 120 pF GRM40
Ceramic 0.1 UF GRM40 F
Tantalum 0.22 UF TESVA1V224K1-8L
(IC-32A/AT/E: except U.S.A.)
[MAIN UNIT]
| REF.NO. | DESCRIPTION PART NO.
Tantalum 0.1 UF TESVA1V104K1-8L
(IC-32/AT: U.S.A.)
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Electrolytic 10 uF 10 V MS5 D=3.0
Ceramic 0.0047 uF GRM40
Ceramic 0.001 uF GRM40 B 25PT
Ceramic 0.001 uF GRM40
Electrolytic 10 pF 10 V MS5 D=3.0
Ceramic 0.1 WF GRM40 F
Electrolytic 2:2 BF 35 V MS5 D=3.0
Ceramic 47 pF GRM40
Ceramic 0.001 nF GRM40
Connector PI28A10M
Connector PI28A10M
Connector PI28A10M
Connector PI28A05M
Connector PI28A04M
Connector TZB-PO7H-A1
Connector TZB-PO3H-A1
Connector PI28A10M
Connector CFP4128-0121
Connector TZB-PO5H-A1
Connector PI28A03M
PI28A10F
PI28A05F
Connector
Connector
Switch
Switch
Switch
SKHMPDO04A
SKHMPDO04A
SKHMPDO04A
Lithium Battery BR2325-1HC
MCR10-JPW
MCR10-JPW
Jumper
Jumper
P.C. Board
P.C. Board
Ferrite Bead
B-1614D (MAIN)
B-1618B (PTT)
DL2-OP2.6-3-1.2H
[RF UNIT]
| REF.NO. | DESCRIPTION PART NO.
HPD4094BG
TC9181F
MB504LPF-G-BND
PLL2001S
SC-1081
SC-1080
2S8C3770 3
Transistor
FET 2SK302 Y
Transistor 2SC3772 3
FET 2SK209 BL
Transistor 2SA1362 GR
Transistor 2SA1362 GR
Transistor 2SC3772 3
Transistor 2SC3772 3
[RF UNIT]
| REF.NO. | DESCRIPTION PART NO.
Transistor 28C3772 3
Transistor 2802712 BL
Transistor 28C4081 S
FET 2SK536
Beil 2SK536
Transistor 2SC4081 S
FET 2SK209 Y
Transistor 2SC4081 S
Transistor 2SA1576 S
Transistor 2SC3772 3
Transistor 2S8C3772 3
Transistor 2SC3772 3
Transistor 2SC3772 3
FEh 2SJ106 GR
Transistor 2SB798 DK
Transistor 2SC4081 S
Transistor FMS1
Transistor 2SC3772 3
FET 2SK536
Transistor FMA3
Transistor FMA4
Transistor DTC144TU
ET 2SK536
Transistor UN511E
Transistor UN511E
Transistor UN521E
Transistor RN1404
Transistor DTC144TU
Transistor DTC144EU ©
Transistor DTA144EU
Transistor DTA144TU
Transistor RN1403
Transistor DTC124EU
Transistor 2SA1298 Y
Transistor RN1402
Transistor DTA144EU
Transistor DTC144EU
Transistor DTC144EU
Diode MA862
Varicap MA334 B
Varicap MA334 B
Varicap MA334 B
Diode MA862
Diode MA862
Diode DWAO10
Zener RD6.8E B2
Diode MA862
Diode MA862
Diode 188154
Diode MA862
Diode 1SS153
Diode 18V172
Diode DAN202U
Diode DAN202U
Diode 188153
Diode DA204U
Diode DAN202U
Monolithic 30M15B
CR247 (10.0 MHz)
Crystal
Coil LS-320
Coil LS-319
Coil LS-321
Coil LS-321
Coil LS-321
Coil LA-228
Coil LA-227
Coil LS-319
[RF UNIT]
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Coil
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
DESCRIPTION PART NO.
LS-338
LS-337
LA-224
LA-223
LA-223
LA-224
LA-247
LQN2A R15K
LA-224
LA-224
LA-225
LA-223
LA-232
LA-236
LQH3N 1R5M
LA-226
LA-225
LA-227
LALO2TA 100K
LALO2TA 100K
LALO2TA 1R5M
LQN2A 56NM
1.5 kQ MCR10
1kO MCR10
39 kQ MCR10
10 kQ MCRtO
22 kQ MCR10
10 kQ MCR10
4709 MCR10
4.7 kQ MCR10
56 Q MCR10
2.2-kQ MCR10
100 kQ MCR10
100 kQ MCR10
ZG) MCR10
330 QO MCR10
15 kQ MCR10
5.6 kQ MCR10
100 kQ MCR10
33 O MCR10
100 Q R20
47 kQ MCR10
6.8 kQ R20
6.8 kQ MCR10
10 kQ MCR10
1 kQ MCR10
150 kQ MCR10
68 kQ MCR10
222 MGR10
22 0 MCR10
4700 MCR10
39 kQ MCR10
479 MCR10
22 0 MCR10
39 kQ MCR10
47 kQ MCR10
15 kQ MCR10
15 kQ MCR10
100 kQ MCR10
100 kQ MCR10
1 kQ MCR10
2.2 kQ MCR10
10 kQ MCR10
330 kQ MCR10
680 kQ MCR10
680 kQ MCR10
330 kQ MCR10
100 kQ MCR10
1 kQ MCR10
2.2 kQ MCR10
1.2 MQ MCR10
1 kQ MCR10
1.5 kQ MCR10
[RF UNIT]
DESCRIPTION PART NO.
Resistor 100 Q MCR10
Resistor 47 kQ MCR10
Resistor 10 kQ MCR10
Resistor 47 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 1.8 kQ ELR20
Resistor 100 kQ MCR10
Resistor 47 kQ MCR10
Resistor 10 kQ MCR10
Resistor 220 MCR10
Resistor 22 kQ MCR10
Resistor 5.6 kQ MCR10
Resistor 150 kQ MCR10
Resistor 8.2 kQ R20
Resistor 470Q MCR10
Resistor 15 kQO MCR10
Resistor 47 kQ MCR10
Resistor 100 kQ MCR10
Resistor 47 kQ MCR10
Resistor 47 kQ MCR10
Resistor 100 kQ MCR10
Resistor 100 2 MCR10
Resistor 22 kQ MCR10
Resistor 5.6 kO MCR10
Resistor 8.2 kQ R20
Resistor 10 kQ MCR10
Resistor 56 O MCR10
Resistor 18 kQ MCR10
Resistor 6.8 kQ MCR10
Resistor 330 MCR10
Resistor 220 MCR10
Resistor 100 QO MCR10
Resistor 1 MQ MCR10
Resistor 4.7 kQ MCR10
Trimmer 100 kQ B EVM-LGG AOO B15
Resistor 5.6 kQ MCR10
Resistor 560 kQ MCR10
Resistor 220 kQ MCR10
Resistor 22 kQ MCR10
Resistor 82 kQ MCR10
Trimmer 30 kQ B EVM-LGG AOO B34
Resistor 33 kQ MCR10
Trimmer 5 kQ B EVM-LGG AOO B53
Resistor 1.8 kQ MCR10
Resistor 22 kQ MCR10
Resistor 10 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 18 kO MCR10
Resistor 6.8 kQO MCR10
Resistor 10Q MCR10
Resistor 220 Q MCR10
Resistor 150 QO MCR10
Resistor 100 Q MCR10
Resistor 1.2 MQ MCR10
Resistor 47 kQ MCR10
Resistor 330 Q MCR10
Resistor 220 Q MCR10
Resistor 1 MQ R20
Resistor 1.8 kO MCR10
Resistor 10 kQ MCR10
Resistor 100 kQ MCR10
Resistor 100 kQ MCR10
Resistor 47 kQ MCR10
Thermistor ERT-D2FHL503S
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.1 HF GRM40 F
Ceramic 0.01 WF GRM40 F
Ceramic 47 pF GRM40
Ceramic 12 pF GRM40
Ceramic 0.001 pF GRM40
Ceramic 10 pF GRM40
Ceramic 22 pF GRM40
[RF UNIT]
| REF. NO. | DESCRIPTION PART NO.
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.01 UF GRM40 F
Ceramic 47 pF GRM40
Ceramic 56 pF GRM40
Ceramic 1 pF GRM40
Ceramic 7 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 56 pF GRM40
Ceramic 0.001 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 22 pF GRM40
Ceramic 12 pF GRM40
Ceramic 33 pF GRM40
Ceramic 18 pF GRM40
Ceramic 22 pF GRM40
Ceramic 27 pF GRM40
Ceramic 22 pF GRM40
Ceramic 47 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 10 pF GRM40
Ceramic 470 pF GRM40
Ceramic 22 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.5 pF GRM40
Ceramic 470 pF =. GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 10 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 5 pF GRM40
Ceramic 5 pF GRM40
Ceramic 7 pF GRM40
Ceramic 22 pF GRM40
Ceramic 8 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Trimmer 15 pF ECR-GA015E30
Ceramic 18 pF GRM40 CH
Ceramic 56 pF GRM40 CH
Ceramic 120 pF GRM40 CH
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 0.1 UF GRM40 F
Ceramic 0.1 UF GRM40 F
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.1 UF GRM40 F
Ceramic 470 pF GRM40
Ceramic 47 pF GRM40
Ceramic 47 pF GRM40
Ceramic 47 pF GRM40
Tantalum 6.8 UF 6.3V SV
Ceramic 0.001 uF GRM40
Ceramic 47 pF GRM40
Ceramic 0.001 nF GRM40
Tantalum 0.1 UF 35V DN
Tantalum Sot 16V DN
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Tantalum 3.3 UF 6.3V SV
Tantalum 303 IF 16V DN
[RF UNIT]
| REF. No. | DESCRIPTION PART NO.
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 47 pF GRM40
Ceramic 47 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Electrolytic 0.22 UF 50V MS5
Ceramic 0.001 pF GRM40
Ceramic 33 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Tantalum 0.1 UF 35V DN
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 4 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 4 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Electrolytic 10 uF 10 V MS5 D=3.0
Electrolytic 22 UF 16V RC2 D=4.0
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 5 pF GRM40
Ceramic 56 pF GRM40
Ceramic 4 pF GRM40
Ceramic 22 pF GRM40
Ceramic 5 pF GRM40
Ceramic 470 pF GRM40
Ceramic 1 pF GRM40
Ceramic 5 pF GRM40
Ceramic 5 pF GRM40
Ceramic 2 pF GRM40
Ceramic 10 pF GRM40
Ceramic 0.75 pF GRM40 SL 50PT
Ceramic 7 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Electrolytic 10 pF 10 V MS5 D=3.0
Ceramic 10 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 15 pF GRM40
Ceramic 0.001 uF GRM40
Electrolytic 10 UF 10 V MS5 D=3.0
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 8 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 6 pF GRM40
Ceramic 15 pF GRM40
Ceramic 15 pF GRM40
Ceramic 0.1 UF GRM40 F
Ceramic 47 pF GRM40
Ceramic 7 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
Ceramic 0.001 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Tantalum 10 uF 16V DN
[RF UNIT]
| REF. NO. | DESCRIPTION
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
PART NO.
GRM40
GRM40
GRM40
GRM40
GRM40
GRM40
GRM40
470 pF
470 pF
470 pF
470 pF
100 pF
0.001 uF
470 pF
HEC0779-01-030
HSJ0836-01-010
HSJ1102-01-540
TZB-P10H-A1
TZB-P10H-A1
TZB-P10H-A1
PI28A03M
TZB-PO2H-A1
BNC-R111-E
Connector
Connector
Connector
Connector
Connector
Connector
Connector
Connector
Connector
PI28A10F
PI28A10F
PI28A10F
PI28A03F
PI28A03F
Connector
Connector
Connector
“Connector
Connector
Switch SPPJ62
MCR10-JPW
MGR10-JPW
MCR10-JPW
JPW-02A
JPW-02A
Jumper
Jumper
Jumper
Jumper
Jumper
P.C. Board
P.C. Board
P.C. Board
P.C. Board
Ferrite Bead
Ferrite Bead
Ferrite Bead
Ferrite Bead
B-1615E (RF)
B-1619B (PLL)
B-1668B (MODULE)
B-1714 (BATTERY TERMINAL)
DL2-OP2.6-3-1.2H
DL2-OP2.6-3-1.2H
DL2-OP2.6-3-1.2H
DL2-OP2.6-3-1.2H
[U-VCO UNIT]
| REF.NO. | DESCRIPTION PART NO.
Transistor 2SC3772 3
Transistor 2SC3356 R25
Transistor 2963772 3
Transistor RN1403
MA334 B
MA862
Varicap
Varicap
Coil LQN2A 47NM
Coil LQH3N R39M
Coil LA-225
(IC-32A/AT/E: except U.S.A.)
Coil LA-224 (IC-32/AT: U.S.A.)
Coil LQN2A 47NM
[U-VCO UNIT]
| REF.NO. | DESCRIPTION PART NO.
Resistor 330 QO MCR10
Resistor 33 kQ MCR10
Resistor 220 MCR10
Resistor 47Q MCR10
Resistor 4.7kQ MCR10
Resistor 6.8 kQ MCR10
Resistor 47 kQ MCR10
Resistor 330 MCR10
Resistor 33 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 100 Q MCR10
Resistor
Ceramic 470 pF GRM40
Ceramic 0.5 pF GRM40
Ceramic 6 pF GRM40 CH
Ceramic 6 pF GRM40 CH
Ceramic 470 pF GRM40
Tantalum 1 uF 16V SV
Ceramic 0.1 UF GRM40 F
Ceramic 12 pF GRM40
Trimmer 10 pF ECR-LBO10A12
Ceramic 12 pF GRM40
Ceramic 0.3 pF GRM40 SL 50PT
Ceramic 8 pF GRM40
Ceramic 6 pF GRM40
Ceramic 470 pF GRM40
Ceramic 470 pF GRM40
Ceramic 4 pF GRM40
Ceramic 4 pF GRM40
Ceramic 0.5 pF GRM40
Tantalum 1 UF 16V SV
Ceramic 10 pF GRM40
Ceramic 10 pF GRM40
B-1718A
P.C. Board
[V-VvCO UNIT]
DESCRIPTION PART NO.
Transistor 2SC3772 3
FET 2SK302 Y
Transistor 2SC3772 3
Diode MA862
Varicap MA334 B
Varicap MA333
Varicap MA334 B
Diode 18S154
LQN2A R15K
Coil LQH3N 1R5M
Coil LB-230
Coil LQN2A R15K
LQH3N 1R5M
Resistor
Resistor 39 kQ MCR10
Resistor 100 kQ MCR10
Resistor 10 kQ MCR10
Resistor
[V-VCO UNIT]
| REF.NO. | DESCRIPTION PART NO.
Resistor 100 kQ MCR10
Resistor 39 kQ MCR10
Resistor 4.7 kQ MCR10
Resistor 1kQ MCR10
Resistor MCR10
Ceramic 0.001 uF GRM40
Ceramic 0.001 hF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.5 pF GRM40
Ceramic 15e0F GRM40
Ceramic Sipe GRM40
Ceramic 100 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.001 uF GRM40
Ceramic 0.75 pF GRM40 SL 50PT
Ceramic 0.001 uF GRM40
Ceramic 7 pF GRM40
Ceramic 7 pF GRM40
Ceramic 0.001 uF GRM40
Ceramic 470 pF GRM40
P.C. Board B-1623C (V-VCO)
P.C. Board B-1604 (COIL)
[TONE UNIT] (1c-3247T)
| REF. NO. DESCRIPTION PART NO.
IC S7116A
uPD4094BG
Crystal RF4A3 FAA (3.578 MHz)
47 kQ
47 kQ
RHO4A3AS4J01A
MCR10
Trimmer
Resistor
Tantalum 0.47 UF 25°VE"SV
Ceramic 470 pF GRM40
Ceramic 47 pF GRM40
Ceramic 39 pF GRM40
Connector PI28A10M
B-1566B
OPTIONAL UNITS
SECTION 9
9-1 UT-40 TONE SQUELCH UNIT CIRCUIT DESCRIPTION
9-1-1 GENERAL DESCRIPTION
IC1 is a tone encoder/decoder IC chip that outputs
and detects 37 different kinds of tones. A tone is set
by serial data from IC902 on the LOGIC UNIT in the
IC-32A/AT/E.
OUTPUT
FREQUENCY
[Hz]
OUTPUT
FREQUENCY
IC1 INPUT PIN NUMBER
9-1-2 ENCODER CIRCUIT
Pin 26 in IC1 outputs a programmed tone frequency when
pin 12 in IC1 becomes “LOW.”
Q4 functions as a buffer amplifier. The collector of Q4
outputs the tone signal and the signal is applied to the
VCO circuit to be modulated.
Tone deviation can be adjusted by R10.
9-1-3 DECODER CIRCUIT
Detected signals from pin 11 in IC707 on the MAIN UNIT
of the IC-32A/AT/E are applied to pin 29 in IC1 on the
UT-40 through the DETO line. When the signals have a
tone modulated and the tone is matched with the pro-
grammed tone frequency by IC2, pin 23 in IC1 changes
from ‘“‘LOW” to “HIGH.”
6-bit parallel data to IC1.
IC2 functions as a serial/parallel converter, applying
The following table shows the
relation between frequency and input data in IC1.
OUTPUT
FREQUENCY
e When the tone squelch function is turned OFF:
Both pins 11 and 12 in IC2 are “HIGH” and +5 V are
not applied to IC1. Q2 and Q3 turn OFF and the TSQL
line is “HIGH.”
e When the tone squelch function is turned ON:
Pin 11 of IC2 is “HIGH” and pin 12 of IC2 is “LOW.”
Both Q2 and Q3 turn ON.
When the received tone frequency is not matched with
the programmed tone frequency, pin 23 of IC1 is “LOW”
and the TSQL line is “LOW.”
When the received tone frequency is matched with the
programmed tone, pin 23 becomes “HIGH” and the
TSQL line becomes “HIGH.”
9-2 UT-40 VOLTAGE/CIRCUIT DIAGRAM
COMMON: 2.4V
|
MN 6520
O.22ysec
GND
CK
CTC
DATA
OPT
TSQL
ett) eee :
he 2
Rae eeECS Sab TONE
DTA IGG EU
fpr sonests code dias
DTC144
> > a
EU
ire RX:OV (WITH DIFFERENT TONE)
RX:4.8V (WITH SAME TONE) TC4S8IF
x TX:OV
Q2
DTA144EU
R7 100k
R9 22k
st
st
~
&
D]
[> -1DA204U
L—~-1R77 100k 2. IRKI0OV
04 TX:2.5V
G7. R12 2SC 4087 RX:OV (WITH DIFFERENT TONE)
0.1 100k eres (WITH SAME TONE)
RIO 22k
9-3
UT-40 BOARD LAYOUTS
COMPONENT SIDE
FOIL SIDE
COMPONENT SIDE
9-4 UT-40 BLOCK DIAGRAM
MUTE
SWITCH > TSQL
1C4
TC4S81
[>\DETECTOR
IC1
MN6520
CR245
CONTROL
IC2
uPD4094
<}#——__ RECEIVE MODE
<q TRANSMIT MODE
<+—_ COMMON _ MODE
9-5 UT-40 PARTS LIST
[T. SQL UNIT]
Resistor 22 kQ MCRO3 EZH J
Trimmer > 22kQ RHO4A3AJ4J
Resistor 100 kQ MCRO3 EZH J
Resistor 100 kQ MCRO3 EZH J
Resistor 1 MQ MCRO3 EZH J
Resistor 4.7kQ MCRO3 EZH J
Resistor 2.2 MQ MCRO3 EZH J
MN6520
uPD4094BG
TC4S81F
TC4S81F
Transistor DTA144EU
Transistor DTA144EU
Transistor DTC144EU
Transistor 2SC4081 R Ceramic 0.1 pF GRM40 F
Ceramic 0.1 WF GRM40 F
Ceramic 50 pF GRM39 SL 180J
DA204U
1SS193
Ceramic 50 uF GRM39 SL 180J
Tantalum 33 UF TESVC0G336M12L
Ceramic 50 UF GRM39 B 471K
Ceramic Os RF GRM40 F
Ceramic 0.1 UF GRM40 F
Ceramic 0.1 YF GRM40 F
Crystal
Resistor MCRO3
Resistor MCRO3
Resistor MCRO3
Resistor d MCRO3
Resistor MCRO3
Resistor MCRO3
Resistor MCRO3
Resistor MCRO3
Connector PI28A10M
P.C. Board B-1577C
Cs i en gu eee ea
SECTION
LOGIC AND M
INITIAL f
ee |
| IC-32
|
|
|
|
a
w S
| © +
| 2 8
= Ni S
18 &
ee
So
I3]
RF UNIT
eat
R752 33K
C774 0.1
ig
R751 10KB
es
!
|
|
(JAN), 1C-32E/ET, IC-32 A/AT
facariu.s.A)
TX:5.1V
RX:5.2V
35 = R776 R777
tK 10K 470
ay
778 470P
+—I
Q724
2SA1162
C747 470P
CHG
BATTERY PACK INT
To upgrade quality, some components may
10.
: be subject to change without notice.
9-4 UT-40 BLOCK DIAGRAM
MUTE
SWITCH > TSQAL
1C4
TC4S81
[>\DETECTOR
TONE
IC1
MN6520
TX/RX
CONTROL
CR245
CONTROL
IC2
uPD4094
<}———__ RECEIVE MODE
<$—\__ TRANSMIT MODE
<}+ COMMON MODE
9-5 UT-40 PARTS LIST
[T. SQL UNIT]
Resistor MCRO3 EZH J
Trimmer RHO4A3AJ4J
Resistor MCRO3 EZH J
Resistor MCRO3 EZH J
Resistor MCRO3 EZH J
Resistor = MCRO3 EZH J
Resistor i MCRO3 EZH J
MN6520
uPD4094BG
TC4S81F
TC4S81F
Transistor DTA144EU
Transistor DTA144EU
Transistor DTC144EU
Transistor 2SC4081 R Ceramic 0.1 pF GRM40 F
Ceramic 0.1 YF GRM40 F
Ceramic 50 UF GRM39 SL 180J
DA204U
188193
Ceramic 50 UF GRM39 SL 180J
Tantalum 33 UF TESVC0G336M12L
Ceramic 50 uF GRM39 B 471K
Ceramic 0.1 UF GRM40 F
Ceramic 0.1 UF GRM40 F
Ceramic 0.1 UF GRM40 F
Crystal CR245
Resistor 10 kQ MCRO3
Resistor 15 kQ MCRO3
Resistor 150 kQ MCRO3
Resistor 2.2 kQ MCRO3
Resistor 10 kQ MCRO3
Resistor 10 kQ MCRO3
Resistor 100 kQ MCRO3
Resistor 47 kQ MCRO3
Connector PI28A10M
P.C. Board B-1577C
Ce C1 eS Ce ee ee
SECTION 10
VOLTAGE DIAGRAMS
LOGIC AND MAIN UNITS
JAPAN (IC-23) a JPEN SQL CLOSE
U.S.A (1C-32a7aT) BP AsrAticeseanTy TEE SVRKAQV TKAKOV
LOGIC UNIT MAIN UNIT = = as
Fd | 22K 470P 470
0 T WA—ir
0708 wde SecA OV +4 2
passed! STOR ase sOey ascari2 & sav cLose te O
P704 y704 a) TX,RK:0.6V
&)
ote e 1p Le ; a
C704 470P ; i a ry re 3 2 i —
1k : Orel e el ais O
T 702 470P. TX:0V DAN202U TXOV,AX4.5V o ot aaa
INITIAL MATRIX & Rea Sear RXi4.5V SOL CLOSE ENG th eens | 2 Rl aaresioor )
INITIAL MATRIX ee aver fora | p oe = ee 2 Fe c re)
q =? 2 Txov = a 7
g Laure 5 | Raa x:7,207 ® x x o[saiz! PO SV Sbeaey fee O
Fr AxioV = 5 = oS eee 3 are os cs 38
I 703 ee PY STOS eae Ld fs Ren ey 3 Sie Le ait &
So Sop yy 25C4081/Ax:2.6V 2 2 s A Ee} be {| re)
i 470P 6 crI0 = E —_—_++ re)
s s Fy Fy C707 100 0,001] CTI3 0.1, ae C726 corer nres 5
S338 = 0.01 0.01 HEP
2) 3) 8 3 ov, 1¢701 Li é Rory C707 Reavy if A
KEYER OFF:TX 48V,RK ov = uP04094 8G aa + :] o § 528 TKI0420M 2
KEYER ON “TX 2.8V,RX OV al ey RX12.8V ss 7K:0V CI s Slo oT
R908 R907 R906 R905 s Ki 5 z
47K 47K 47K 10K et eroe ov. neh ae 9 no? Sm
2SB909M/ 2SC4081 yy-oy A. e723 0.1 : ee |
22 Ops 18 }17 6 jis 8 6 = -
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3 e =
1 - es ps904 cD are ° x 3 aaa
\3 : 77] ol 5 3 = ot OSV
3 <= BS LD-Bu9246u a oT
\ . ll 8 yet x
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1c902 ze mov, * = C751 10° | Rr4s 4.
PD75308GF - 100-389 [7s] | i
O76 Bs
es jessy) sina
1}
| [70]
1 3.5V
= 3
: are ole
i x z e=5
Q90!1~ 904 ° a VHF, UHF Tt i
| S) 9907 KY 2° TX 112,3V, RX:12.6V Pa
25c408! (y a th
8 2scaoa! 5
1 2 s 0712\2s8909M 3) 0714 2s8909m
1 5 +
Ron 0.24usec J
I —— P| = s 0713 RF UNIT
1c903 5 2sc4oa) >°Y
Row? e2K r 3Vp-p =
| S-8054AL8-LM f3 4 S\ 2-12
R919 150K | 2 & <q a]a
1 R913 82K a ad, \ procccc crc ccc 55-5 ----- yo --- rc -- 5 ele
+>3
! oy C7030 = cit — | : |
! 1 J jpoanzozy |S Tx,Axi4.av © RX SOV 7] 1¢-32AT, 1C-32ET Only a ot Sms
! = + UHF Ni ™ 1
R921 150K | 2] 3 3 TX,RK:4.5V = J £ !
ext 8 S « 1 = i
AMP OFF
En oe IC-32E/ET Only pert : - ' ets
RX12.6V RX :12.5V ° ! Te
1 | 719 1 Sys
e910 a 2sceri2 : th
25408! TX. ROC1LOV Q905 |
1c¢904a\ 25¢408! Sythe? TC5082P-G ; ei
£
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: 2 e 9720 Spee eS fe
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2 = a3 2 c930 52V panier’ Pras 47K I mi
s S g a SP90} 7 1 [o22 | re-23/ an), 1C-32E/ET, 1C-S2A/AT
3 2 ° s s136004 % qxa2av al. \ 00? Ton | 1e-sbaraTus.al
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~ = 470Px4 RB PRKA2Z5V chi 3 ee ed ee = se It
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OP + av, caren fers lie S prro |120_| 16-231JAN), 1C-32E/ET, 16-32 A/AT + AX'S.2¥
3 sros Ss Le aay JE ee eee wre 8° | rer evox SSE , om /
pETO [ro] panzozu R718 = 4.9V r7s6 5.0V S81250HG Axs13.2v '67 270) 80 22 OK 0
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po} Ee SS ya| 10703 neasy 8 el Ps
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| SS el | ral y Fy g x a Ty x it 3 a
|_| 0 28ysec 1-11. 3ysee fiesonetl & Sy = 0725
Pato} . 3 8 5 \ & Ee 2 DTCI44EU
[7 1¢703 2 2 Sh \ iS E s
P4069 UBG = \
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1¢-23 Ic601 1c602 06 ul! 1c706 Focov
IC-32A/AT Ic-32E/ET STIIEA PD409486 PTT 2su10 eg ; M5218 FP
5.0V ov
ES 1c7034
TONE OFF: TX OV. RX 5. BUNCTION,
TONE ON ‘TX 5,
MONITOR
LAMP a |
~
R152 10K8
EF UNIT
c604 47P
TONE UNIT
Ic-23, IC-32AT Only
To upgrade quality, some components may
be subject to change without notice.
) i 2 —
ft Va pa’ A= g Lye sso ae a a 3 gayest) 0) ows bh
nan. Al ejenied veners =a 260, ¢
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TAS es
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R246 1
VHF i
2SC3772 TX.RX:0V
UHF
TX:0V
RX:4.1V
C388
0.001
50K
VHF
a \TXRX:0V
© UHF
° TX: OV
“=, RX:0.7V
yy
oO
c272
lo
470P
L210 VHF Q210 Lai Q2i1
ie TX,RX: -337
LS=35e8) PMO 2503772 ES 283772
TX:0V VHF VHF
RX:4.5V TX,RX:0V TX,RX:0V
R251 22 R255 22
C273 470P
+H
VHF
TX,RX: OV
UHF
TX:0V
RX: 0.8V
1C-23 (JAN)
IC-32E /ET, 1C-32A/AT
C275 470P
C277 470P
+H
278 470P
3H
R332 100
C274 470
+H
°
nN
“N
A
als E
VHF
TX,RX:0V
IHF
TX:2.4V
1C206 6 RX: OV
$C-1081
TX:4.4V
MODULE RX: OV ; 5
po------ Hh ----l---= —-|---7 D216
Q224 a 390 MA862 C346 4 6C348 L222 L223 J210
| 28C3772 C339 g i ll ll 0.001 |POU fee eel 5P 4P 5P LA-223 LA-232
| 4P a O DD) ANT
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O AS & ze 18a moO Pa oa c355 | C357
x N = ae ne ° 2P 0.75P
@ N z | z ©
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[le Sees £ S oe] a] i Is °| al
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r be) M3 @ eee ot) VHF UHF Ch eS ae
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Icom Inc.
6-9-16, Kamihigashi, Hirano-ku, Osaka 547, Japan
Phone: 06 793 5301
Fax :06 793 0013
Telex : 05277822 ICOMTR J
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Icom Inc. A-5012-S
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