Icom Ic-r75 Communications Receiver Service Manual

							3 - 6
The CPU has the clock function. Thus, the CPU and the
clock function have the crystal separately. The CPU has the
9.8304 MHz crystal (X112) for the CPU clock, and then the
oscillated 9.8304 MHz signal is applied to the IC101, pin 7
and 8. The clock function has the 32.768 kHz crystal (X111).
The oscillated 32.768 kHz signal is applied to the CPU
(IC101, pin 4 and 5).
When the power is “OFF”, the EEPROM (IC231) is used for
keep on saving the data of memory channels, and so on.
3-3-2 RESET CIRCUIT (LOGIC UNIT)
The reset circuit consists of Q391, D381, D382, D393, IC391
and IC392. When IC-R75 is supplied 13.8 V to connect the
AC adapter, the “HV” signal is applied to the IC391, pin 2.
The signal which is output from the IC391, pin 1 is applied to
the IC392, pin 1. The signal is applied to the Q391, and is
then output to the CPU (IC101, pin 9) as “CRES” reset sig-
nal.
A portion of the output signal from the IC392 is input to the
CPU (IC101, pin 82) as “BKUP” signal to backup the clock
data.
3-3-3 BACKUP SWITCH CIRCUIT (LOGIC UNIT)
IC-R75 has a backup switch circuit (Q511 and Q512). When
IC-R75 is supplied to 13.8 V to connect the AC adapter, the
“H5V” signal is applied to Q512, pin 4, and then Q511 is OFF.
When the AC adapter is disconnected, the “BATT” signal
from the battery (MAIN unit; BT1521) is applied to the Q511,
and then Q512 is OFF.
The output signal is applied to the CPU (IC101, pin 31) as
“B5V” signal to keep on working the clock function.
The backup battery is not used while the AC adapter is con-
nected.Description
The voltage from the connected DC power sup-
ply.
Common 5 V converted from the “HVR” line by
the +5 regulator circuit (IC1361).
Common 14 V converted from the “”HVR” line by
the regulator circuit (IC1371 and D1371). The
output voltage is applied to the pre-amplifier
(Q381 and Q382) via the PRE1 regulator circuit
(Q383) and the IF-amplifier (Q471) via the R14V
regulator circuit (Q472).
Receive 8 V converted from the “14V” line by the
R8 regulator circuit (Q1381, Q1382 and D1381).
The output voltage is applied to the IF-amplifier
(Q912, Q471), the switch control circuit (Q151),
and the driver circuit (IC561 and IC562, pin 9).
Common 8 V converted from the “14V” line by
the +8 regulator circuit (IC1391). The output sig-
nal is applied to the low-pass filter (IC1211A, pin
4), buffer amplifiers (Q1051 and Q801), the pre-
amplifier (IC391) via the REG2 regulator circuit
(Q391) and the AM detector circuit (IC2001, pin
25).
Common 5 V converted from the “14V” line by
the +5 regulator circuit (IC1401).
Common –5 V converted from the “14V” line by
the –5 V DC-DC convertor circuit (IC1411, D1412
and D1413).
Line
HVR
H5V
14V
R8V
8V
5V
–5V
3-4 POWER SUPPLY CIRCUITS
3-4-1 VOLTAGE LINES (MAIN UNIT) 
						

							3 - 7
3-5 PORT ALLOCATIONS
3-5-1 CPU (LOGIC UNIT; IC101)
Pin
number
1
9
11
12
14
15
16
17
18
19
21
22
23
24
25
26
36
37
38
39
40
41
42
43
44
45
46
47
48Port
name
KEY6
CRES
PWRK
DUD
DAST
RSTB
ISTB
ASTB
ECS
MCK
MDAT
PCK
PST1
PDAT
PST2
PST3
SSBK
CWK
AMK
FMK
FILK
TSK
PREK
ATTK
NRK
ANFK
NBK
AGCK
VMKDescription
Input port for [0] and [ENT] switch
from the 10-key.
Input port for the reset signal.
Low : While the reset switch is
pushed.
Input for the [POWER] switch.
Low : While [POWER] switch is
pushed.
Input port for the UP signal from the
[MAIN DIAL].
Outputs strobe signals for the D/A
converter (LOGIC unit; IC351).
Outputs strobe signals for the shift
registor (MAIN unit; IC551, IC552).
Outputs strobe signals for the shift
registor (MAIN unit; IC1602).
Outputs strobe signals for the shift
registor (MAIN unit; IC1601).
Outputs ECS signals for the EEPROM
(LOGIC unit; IC231).
Outputs clock signal to the EEPROM
and shift registors.
Outputs data signals to the EEPROM,
shift registors, etc.
Outputs clock signals to the PLL IC
(PLL unit; IC21) and the DDS IC (PLL
unit; IC151, IC201).
Outputs strobe signals for the PLL IC.
Outputs data signals to the PLL IC and
the DDS IC.
Outputs strobe signals for the DDS IC
(IC151).
Outputs strobe signals for the DDS IC
(IC201).
Input port for the [SSB] switch.
Input port for the [CW] switch.
Input port for the [AM] switch.
Input port for the [FM] switch.
Input port for the [FIL] switch.
Input port for the [TS] switch.
Input port for the [P.AMP] switch.
Input port for the [ATT] switch.
Input port for the [NR] switch.
Input port for the [ANF] switch.
Input port for the [NB] switch.
Input port for the [AGC] switch.
Input port for the [V/M] switch.Pin
number
49
50
51
52
53
54
55
56
57
63
77
78
79
80
81
82
83
84
90
91
92
93
94Port
name
MWK
CLRK
SELK
SCAK
UPK
DNK
LOCK
SETK
CLKK
DRES
PWRS
BEEP
RXS
AGRS
SQLS
BKUP
DCK
RECS
AFGL
RFGL
PB1L
PB2L
FMNLDescription
Input port for the [MW] switch.
Input port for the [CLR] switch.
Input port for the [SEL] switch.
Input port for the [SCAN] switch.
Input port for the [UP] switch.
Input port for the [DN] switch.
Input port for the [LOCK] switch.
Input port for the [SET] switch.
Input port for the [CLOCK] switch.
Outputs reset signal to the PLL IC and
DDS IC.
Low: PLL IC and DDS IC is reset.
Outputs control signal for the regulator
circuit (MAIN unit; IC1371 and
D1371).
Outputs beep audio signals.
Outputs control signal for the R8 regu-
lator circuit (MAIN unit; Q1381,
Q1382, D1381).
• Outputs AGC reset signal to the
AGC delay control circuit (MAIN unit;
Q1066).
• Outputs control signal for the AGC
delay control circuit (MAIN unit;
Q1061, Q1064–Q1066).
Outputs squelch control signal to the
AF selector circuit (MAIN unit;
IC1201).
Input port for the BKUP signal from
the reset circuit (LOGIC unit; IC391).
Input port for the UP signal from the
[MAIN DIAL].
Outputs control signal for the remote
recording driver.
Input port for the AF gain signal from
the [AF] volume on the front panel.
Input port for the SQL/RF gain signal
from the [SQL/RF] volume on the front
panel.
Input port for the PBT1 signal from the
[TWIN PBT] volume on the front
panel.
Input port for the PBT2 signal from the
[TWIN PBT] volume on the front
panel.
Input port for the FM noise squelch
signal from the FM detector circuit
(MAIN unit; IC1001 and X1001). 
						

							4 - 1
SECTION 4 ADJUSTMENT PROCEDURES
4-1 PREPARATION
Ô Ô
REQUIRED TEST EQUIPMENT
Ô Ô
CONNECTION
EQUIPMENT
DC power supply
Frequency counter
Audio generator
DC Voltmeter
GRADE AND RANGE
Output voltage : 13.8 V DC
Current capacity : 2 A or more
Frequency range : 0.1–60 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity : 100 mV or better
Frequency range : 0.1–60 Hz
Measuring range : 0.01–10 mV
Input impedance : 50 k½/V DC or better 
EQUIPMENT
Oscilloscope
AC millivoltmeter
External speaker
Standard signal 
generator (SSG)
GRADE AND RANGE
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Measuring range : 10 mV–10 V
Input impedance : 8 ½
Capacity : 4 W or more
Frequency range : 0.1–300 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
50 ½
ANT450 ½
ANT DC
IN
EXT
SPREMOTE
connector
Standard Signal
Generator
NOTE:
The [450 ½] ANT jack is not
used for adjustment
SpeakerAC
milli-voltmeter
DC power supply
13.8 V / 10A1/8 (3.5 mm)
2-conductor plug
Shorten inner and outer plugs Terminator for the entering
adjustment mode 
						

							4 - 2
4-2 PLL ADJUSTMENT
REFERENCE
FREQUENCY
VCO
VOLTAGE
1ST LO
VOLTAGE
3RD LO
VOLTAGE
3RD LO
FREQUENCY
BFO
VOLTAGE
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT
VALUEPOINT
UNIT LOCATION UNIT ADJUST
1
2
1
2
3
4
1
1
1
1
2• Displayed frequency
: 29.99999 MHz
• Mode : USB
• Displayed frequency
: 29.99999 MHz
• Mode : USB
• Displayed frequency
: 0.03000 MHz
• Mode : USB
• Displayed frequency
: 60.00000 MHz
• Mode : USB
• Displayed frequency
: 30.00000 MHz
• Mode: USB
• Displayed frequency
: 30–60.00000 MHz
• Mode : USB
• Displayed frequency
: 30–60.00000 MHz
• Mode : USB
• Displayed frequency
: 9.4615 MHz
• Mode : FM
• Displayed frequency
: 14.100000 MHz
• Mode : USB
• Displayed frequency
: 14.100000 MHz
• Mode : AM
PLL
PLL
PLL
PLL
PLL
PLLConnect the fre-
quency counter to
P1.
Connect the RF
voltmater to P1.
Connect the DC
voltmeter to HCP71.
Connect the RF
voltmeter to P91.
Connect the RF
voltmeter to P91.
Connect the fre-
quency counter to
P151.
Connect the RF
voltmeter to P201.60.00000 MHz
Maximum voltage
4.0 V
More than 0.8 V
4.0 V
More than 0.8 V
More than 0.18 V
More than 0.022 V
9.4614–9.4616 MHz
More than 0.022 V
Less than 280 µVPLL
PLL
PLLL2
L4, L5
C86
Verify
C76
Verify
Verify
Verify
Verify
Verity
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit. 
						

							4 - 3
P201BFO voltage check point
P1513rd LO frequency check point
P1Reference frequency check point
P911st and 3rd LO voltage check point
C76VCO voltage adjustment
L2Reference frequency adjustment
(for output frequency is 60.0000 MHz)
HCP71VCO voltage check point
C86
L5
Reference frequency adjustment
(for output voltage is maximum)L4
• PLL UNIT 
						

							4-3 RECEIVER ADJUSTMENTS
4 - 4
RECEIVER
SENSITIVITY
1ST MIXER
BALANCE
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT
VALUEPOINT
UNIT LOCATION UNIT ADJUST
1
2
1• Displayed frequency
: 14.10000 MHz
• Mode : USB
• PREAMP1 : ON
• ANT select : ANT1
• AGC :  FAST
• 
NOISE BLANKER: OFF
• RF/SQL : CENTER
• PBT1/PBT2 : CENTER
• IF FILTER1 : 2.4 kHz
• IF FILTER2 : 2.4 kHz
• Connect an SSG to the antenna
connector1 and set as:
Frequency : 14.10150 MHz
Level : 22 µV* 
(–13 dBµ)
Modulation : OFF
• Receiving
• Displayed frequency
: 0.10000 MHz
• PREAMP1 : OFF
• set an SSG level as
: OFF
• ReceivingRear
Panel
Rear
panelConnect the AC
milli-volt meter to
the [EXT SP] jack
with an 8 ½load.
Connect an oscillo-
scope to the [EXT
SP] jack with 8 ½
load.Pre-set to center
Maximum output level
Minimum noise levelMAIN
MAIN
MAINR444
R898
L443,
L461,
L462,
L471,
L701,
L711,
L712,
L891,
L892,
L911
L443,
R444
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
Receiver sensitivity adjustment
Pre-set to center before
receiver sensitivity adjustment
1st mixer balance adjustment
EXT SP JACK
Receiver sensitivity and 1st mixer balance
check point
• MAIN UNIT
R893
R444 L701
L711
L712
L471
L462
L461
L443
L891
L892
L911 R444
L443 
						

							RECEIVER ADJUSTMENTS (continued)
1ST IF
FILTER
RECEIVER
TOTAL GAIN
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT
VALUEPOINT
UNIT LOCATION UNIT ADJUST
1
1
2• Displayed frequency
: 14.10000 MHz
• Mode : FM
• PREAMP1 : ON
• IF FILTER1 : 15 kHz
• IF FILTER2 : 6 kHz
• set an SSG as
Frequency : 14.10000 MHz
Level : 0.32 µV* 
(–10 dBµ)
Deviation : ±3.5 kHz 
Modulation : 1 kHz
• Receiving
• Displayed frequency
: 14.10000 MHz
• Mode : USB
• PREAMP1 : OFF
• IF FILTER1 : 2.4 kHz
• IF FILTER2 : 2.4 kHz
• Set an SSG as
Frequency : 14.10150 MHz
Level : 500 µV* 
(54 dBµ)
Modulation : OFF
• Set an SSG level as
: OFF
• ReceivingRear
panel
Rear
panelConnect the AC
milli-volt meter to
the [EXT SP] jack
with an 8 ½load.
Connect the AC
milli-volt meter to
the [EXT SP] jack
with an 8 ½load.
Maximum output level
0 dB
(1.0 V)
–30 dB
(10 mV)MAIN
Front
panel
MAINL461,
L462[AF GAIN]
control
R898
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
4 - 5
EXT SP JACK
1st IF filter and receiver total gain check point
R898
Receiver total gain adjustment
1st IF filter adjustment
• MAIN UNIT
L462
L461 
						

							4 - 6
EXT SP JACK
Noise blanker check point after apply the noise signal
Noise blanker adjustment before apply the noise signal
R736 • MAIN UNIT
CP731Noise blanker check point before apply the noise signal
• Noise blanker adjustment after apply the noise signal • Pre-set to center before apply the noise signal
L731
L732
RECEIVER ADJUSTMENTS (CONTINUED)
NOISE
BLANKER
ADJUSTMENT
ADJUSTMENT ADJUSTMENT CONDITIONMEASUREMENT
VALUEPOINT
UNIT LOCATION UNIT ADJUST
1
2• Displayed frequency
: 14.10000 MHz
• Mode : USB
• Noise Blanker : OFF
• PREAMP1. : ON
• Set an SSG as
Frequency : 14.10000 MHz
Level : 18 µV* 
(25 dBµ)
Modulation : OFF
• Apply the following signal to the
[ANT1] connectorMAIN
Rear
PanelConnect the oscillo-
scope to the check
point CP731.
Connect the oscillo-
scope to the [EXT
SP] jack with an 8 ½
load.Pre-set to center
Minimun voltage
Noise is blanked
when the [NB] switch
is ON.MAIN
MAINR736
L731,
L732
R736
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
1 msec.100 msec. 
						

							4 - 7
4-4 SET MODE ADJUSTMENT
ENTERING
ADJUSTMENT
SET MODE
PBT
VOLUME
S-METER
FILTER
CALIBRATION
ADJUSTMENT ADJUSTMENT CONDITION DISPLAY OPERATION
1
1
2
3
4
1
2• Turn power OFF
• Connect a terminator to the
[REMOTE] connector on the rear
panel.
• While pushing “SET[ANT] and
“CLOCK” keys, and turn power
ON.
• Connect an SSG to the antenna
connector1 and set as:
Frequency : 14.15150 MHz
Level : 50 mV* 
(–13 dBm)
Modulation : OFF
• Preset both the inner and outer
“TWIN PBT” controls to 12
o’clock position.
• Receiving
• Set an SSG level as 
: OFF
• Set an SSG level as 
: 35 µV* 
(31 dBµ)
• Set an SSG level as 
: 28 mV* 
(89 dBµ)
• Set an SSG level as 
: 10 µV* 
(20 dBµ)• When success entering adjustment set
mode, shown “PBT SET” on the display.
• Then advance to the following setting,
or push “UP” key to scroll the display.
• Push “SET[ANT]” key.to set the PBT
level.
• When the PBT level is true, shown
“GOOD” on the display.
• When S0 level of S-meter adjustment
mode entering, displayed “S0 LV”.
• Push the “SET[ANT]” key to set the S0
level.
• When S9 level of S-meter adjustment
mode entering, displayed “S9 LV”.
• Push the “SET[ANT]” key to set the S9
level.
• When +60 dB level of S-meter adjust-
ment mode entering, displayed “+60
LV”.
• Push the “SET[ANT]” key to set the 60
dB level.
• When the S-meter adjustment is end,
displayed “END”.
• When filter calibration adjustment
mode entering, displayed “FIL CAL”.
• Push the “SET[ANT]” key to set the fil-
ter calibration.
• Emit to the beep audio.
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
• Turn power OFF to exit the adjustment set mode. 
						

							S.=Surface mount
R131 7210003040 VARIABLE TP96D26-22F-10KBX2-2240
R141 7210003030 VARIABLE TP96D00-22F-10KBX2-2240
R143 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
J101 6510020710 S.CONNECTOR 52793-1090
EP1 0910051172 PCB B 5271B  
L121 6200003950 S.COIL HF50ACC 322513-T
R121 7030006070 S.RESISTOR ERJ12YJ101H (100 ½) 
R122 7030006070 S.RESISTOR ERJ12YJ101H (100 ½) 
C121 4030006880 S.CERAMIC C1608 JB 1H 472K-T-A
C122 4030006880 S.CERAMIC C1608 JB 1H 472K-T-A
C123 4030006880 S.CERAMIC C1608 JB 1H 472K-T-A
J101 6510020710 S.CONNECTOR 52793-1090
J121 6510021480 CONNECTOR HLJ2307-01-3070
EP1 0910051182 PCB B 5272B  
IC101 1140008250 S.IC HD6433837SC58H
IC231 1140005880 S.IC X25320S8I-2.7T6
IC351 1110003690 S.IC M62354GP 75EC
IC391 1130009110 S.IC S-80942ANMP-DD6-T2
IC392 1130006440 S.IC TC7S08F (TE85R) 
IC401 1130004921 S.IC TC74HC04AF (TP1) 
Q351 1590000680 S.TRANSISTOR DTC114EUA T106
Q391 1530002850 S.TRANSISTOR 2SC4116-BL (TE85R) 
Q401 1590001650 S.TRANSISTOR XP4601 (TX) 
Q421 1590000720 S.TRANSISTOR DTA144EUA T106
Q511 1510000510 S.TRANSISTOR 2SA1576A T106R
Q512 1590001650 S.TRANSISTOR XP4601 (TX) 
D381 1730002320 S.ZENER MA8051-M (TX) 
D382 1790000970 S.DIODE MA729 (TX) 
D393 1750000550 S.DIODE 1SS355 TE-17
D401 1750000550 S.DIODE 1SS355 TE-17
D461 1730002530 S.ZENER NNCD6.2G-T1
X111 6050009460 S.XTAL CM200S    SMD (32.768KHZ) 
X112 6050009870 S.XTAL CR-567 (9.8304 MHz) 
L491 6200003950 S.COIL HF50ACC 322513-T
L492 6200003950 S.COIL HF50ACC 322513-T
L501 6200002970 S.COIL NL 322522T-121J
L502 6200002970 S.COIL NL 322522T-121JL503 6200003950 S.COIL HF50ACC 322513-T
R112 7030003800 S.RESISTOR ERJ3GEYJ 105 V (1 M½) 
R121 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R122 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R123 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R124 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R125 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R126 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R127 7030003360 S.RESISTOR ERJ3GEYJ 221 V (220 ½)
R128 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R129 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R130 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R131 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R141 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R142 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R143 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R144 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R145 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R146 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R147 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R148 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R149 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R150 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R151 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R152 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R153 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R154 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R155 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R161 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 k½) 
R162 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 k½) 
R163 7030003640 S.RESISTOR ERJ3GEYJ 473 V (47 k½) 
R171 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R172 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R173 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R174 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R175 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R176 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R177 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R178 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R179 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R191 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R192 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R193 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R194 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R195 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R196 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R197 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R198 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k½) 
R201 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R202 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R203 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R204 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R205 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R206 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R208 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R209 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R210 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R211 7030003440 S.RESISTOR ERJ3GEYJ 102 V (1 k½) 
R221 7030003400 S.RESISTOR ERJ3GEYJ 471 V (470 ½) 
R223 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 k½) 
R224 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 k½) 
R225 7030003560 S.RESISTOR ERJ3GEYJ 103 V (10 k½) 
R231 7030003680 S.RESISTOR ERJ3GEYJ 104 V (100 k½) 
R251 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R252 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R253 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R254 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R255 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R256 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R257 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R258 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R259 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R260 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
R261 7030003540 S.RESISTOR ERJ3GEYJ 682 V (6.8 k½) 
5 - 1
SECTION 5 PARTS LIST
REF ORDER
DESCRIPTION
NO. NO.
[VR BOARD]
REF ORDER
DESCRIPTION
NO. NO.
[LOGIC BOARD]
REF ORDER
DESCRIPTION
NO. NO.
[PHONE BOARD]
REF ORDER
DESCRIPTION
NO. NO.
[LOGIC BOARD]