Icom IC-F4001, Service Manual

Page: 29 / 32

10 - 1
SECTION 10. VOLTAGE DIAGRAM
*: Refer to the PARTS LIST for the value and name of component.
MAIN-A UNIT (1/2)
J53
1
2
3
4
CP05S
CP6
T5V
R5C
22k
R454
10k R433
33k
R386
68k
R344
68k
R341
R1EX24016ATA00A
IC52
1
A0 2
A1 3
A2 4
VSS
5 SDA
6 SCL
7 WP
8 VCC
SW-167
S53
TMUT
R310
22k
DISC
LM2902PWR
IC59
V+
4
GND
11
4.7k R462
XP6501
Q64
1 2 3
4 5 6
100k R420
R2A20178 IC57
1
VIN2
2
VDD
3
LD
4
CLK
5
DI
6
VIN3
7 VOUT3
8 VOUT4
9 VIN4
10 VIN5
11 VOUT5
12 VOUT6
13
VIN6
14
VDAREF1
15
VDAREF2
16
RESET
17
GND
18
VIN7
19
VOUT7
20
VOUT8
21
VIN8
22
VIN1
23
VOUT1
24
VOUT2
25
ERBSE3R00U
F51
12
4.7k
R436
UNLK
100k
R423
LM2902PWR
IC59
9
10
8
SCK
68k
R343
NJM12902V
IC58
9
10
8
LRB706F D51
100k R475
10k
R431
RSSI
12k R453
TEMP
12k
R455
12k
R302
1k
R416
+5V
NW C
SW-167
S52
4.7k
R329
NJM12902V
IC58
6
5
7
100k
R460
3.3k
R313
LM2902PWR
IC59
13
12
14
47k
R327
22
C436
470
R375
MOD
LDTC144EE
Q59
NJM12902V
IC58
V+
4
GND
11
1k
R476
TPA0211DGN
IC55
1
IN 2
SHUTDOWN
3
VDD 4
BYPASS
5 VO+
6 SE/BTL
7 GND
8 VO-
9
VCON
1M R430
1SS390 D52
10k R350
NJM12902V
IC58
13
12
14
100k
R467
10k
R318
CP05S
CP7
180k
R322
56k
R323
L1SS400
D53
NJU7704F3
IC53
1 CD
2 VSS
3 MR 4
VOUT
5
VDD
SQIN
CP05S
CP12
CR-864
X51
CD4053B
IC61
1
Y1
2
Y0
3
Z1
4
Z
5
Z0
6
IN
H
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
22
C377
68k
R345
68k
R342
10k
R434
4.7k R461
120k
R385
10k R437
1.8k
R468
J52
15k
R426
47k
R326
R398
10k
NJM12902V
IC58
2
3
1
33k R362
LDTC144EE
Q76
2SA1586
Q72
NOIS
KTA2015
Q73
R379
270k
XP6501
Q75
1 2 3
4 5 6
LVA
22k
R324
100k R473
100k R330
1.5k
R304
470
R361
LDTA144EE
Q83
CP05S
CP8
100k
R364
390
R469
CD4066BPWR
IC56
1 I/O1
2 O /I1
3 O /I2
4 I/O2
5 CONT2
6 CONT3
7 VSS 8
I/O3
9
O/I3
10
O/I4
11
I/O4
12
CONT4
13
CONT1
14
VDD
CP05S
CP9
10k
R456
TP76N00N
R421
LDTC144EE
Q52
100
R408
T1
1k
R401
R312
22k
15k
R474
S5V
R5V
10k
R463
330k
R427
SW-149
S51
100k R470
100k
R464
R311
22k
UNR9210G0
Q81
15k
R301
J51
470
R402
SO
1k
R458
15k
R471
47k
R328
PLST
HR
YG
CL-165HR
DS51
XP4601
Q51
1
2
3 4
5
6
CP5
CP06S
100k R348
100k R424
47k
R346
R396
270k
R397
180k
LM2902PWR
IC59
2
3
1
10k R378
CP05S
CP10
LDTA144EE
Q82
MMZ1005Y102CT EP51
100k
R472
T2
100
C431
56k
R303
10 MSVA
C400
10k R435
100k
R384
HV
6.8k R371
1k
R459
LVIN
10
R451
CP05S
CP11
100k
R466
2SB1132
Q63
2SB1132
Q74
1k R418
100k R413
L1SS400
D55
100k R406
EM9745P
MC51
470
R363
4.7k R457
10k R347
4.7k
R432
KTA2015
Q71
R394
100k
15k
R321
6.8k R325
270k
R381
5.6k R372
TP70TF5169
S54
1
A1
2 C1
3
B1 4
A2
5 C2
6
B2 7
A3
8 C3
9
B3
1k
R477
R374
3.9k
CD4066BPWR
IC62
1
I/O1 2
O /I1 3
O /I2 4
I/O 2 5
CONT2 6
CONT3 7
VSS
8 I/O3
9 O/I3
10 O/I4
11 I/O4
12 CONT4
13 CONT1
14 VDD
NJM12902V
IC60
2
3
1
NJM12902V
IC60
9
10
8
NJM12902V
IC60
6
5
7
NJM12902V
IC60
13
12
14
NJM12902V
IC60
V+
4
GND
11
220
C393
LDTC144EE
Q84
LDTC144EE
Q85
390
R440
10k
R441
UNR911HG0
Q58
10k R352 8.2k R353
1M
R354
82k
R373
4.7k
R412
330
R442
330k
R414
2.2k R360
0.1
C301
0.
1
C310
0.018 C302 0.047 C305
220P C303
0.039
C306
0.1
C307
0.022 C309
0.01
C330
0.01
C331
0.0047
C333
0.0047
C332
0.001 C335
0.001 C337
0.001 C338
0.001 C339
0.
1
C340
0.
1
C344
0.018
C381
0.018
C382
0.001 C388
0.001 C389
0.001 C390
0.001 C397
0.
1
C404
0.1
C403
0.
1
C399
1 C405
0.001 C398
0.001 C406
0.001 C410
0.001 C413 0.001 C412
0.001 C416 0.001 C414 0.001 C415 0.001 C417
0.001 C435
0.001 C432
0.001 C424
0.01 C423
0.01 C426
0.01 C429
0.
1
C427
0.
1
C421
0.
1
C430
0.
1
C433
0.
1
C437
0.
1
C454
0.
1
C456
0.
1
C458
0.
1
C459
0.
1
C467 0.01 C466
0.027 C457
33P C451 10P C452
22P
C453
0.
1
C465
0.1
C462
0.1
C460
0.1
C461
0.
1
C313
0.018 C312 0.0012 C314 0.
1
C316
0.001
C321
0.001 C322
390P C323
0.01 C324
47P C325
0.1
C349
0.
1
C352 0.
1
C354
0.1
C358
0.01
C326
0.0047 C371
180P C372
0.0047
C364
47P
C365
0.
1
C361
0.
1
C362
0.
1
C363
0.01
C318
0.001 C334
0.
1
C401
0.001
C376
0.001 C378
220
C395
0.01 C434
0.
1
C408
LM2902PWR
IC59
6
5
7
18k
R351
10k
R355
1
C328
0.0047
C329
2.2k R438
R393
270k
R395 120k
0
R403
NJM2871BF05
IC54
1 CTRL
2 GND
3 NB 4
VOUT
5
VIN
150k
R366
150k
R369
470k
R370
270k
R368
47P C391
8.2k
R359
1
C336
33k
R377
220P C351
10
C304
R314
390k
R315
82k
R316
470
6.8k
R317
0.0068 C308
0.001 C342
470k
R382
560k
R383
0.01 C357
47k R331
0.039
C346
0.039
C348
0.01
C347
10
C343
10 C448
10
C356
1M R349
47 MSVB2
C379
47P
C380
0.0012
C350
1.
8
R405
15k R417
1.5k
R387
0.047 C373
2.2k R439
2.2k
R391
1.5k
R428
390k
R429
470P C383 0.
1
C385
1.5k
R390
1k R389 12k R388
R4F20102NFA
IC51
1 PB6/AN6/DA0
2 PB7/AN7/DA1
3 AVCC
4 X2
5 X1
6 AVSS
7 RES
8 TEST
9 VSS
10 PJ1/OSC2
11 PJ0/OSC1
12 VCC
13 P37/TXD_3
14 P36_RXD_3
15 P35/SCK3_3
16 P34/FTCI
17
P33/FTIOD
18
P32/FTIOC
19
P31/FTIOB
20
P30/FTIOA
21
P15/IRQ5
22
P16/IRQ6
23
P17/IRQ7
24
P54/SSO
25
P55/SSC
K
26
P56/SDA/SCS
27
P57/SCL/SSI
28
P53/TGIOB
29
P52/TGIO
A
30
P51/TCLKB
31
P50/TCLKA
32
P63/FTIOD0
33 P62/FTIOC0
34
P61/FTIOB0
35 NMI
36 P60/FTIOA0
37
P64/FTIOA1
38
P65/FTIOB1
39 P66/FTIOC1
40 P67/FTIOD1
41
P85/TRAIO
42
P86/TRBO
43 P87/TREO
44
P20/SCK3
45
P21/RXD
46 P22/TXD
47 P23/TRCOI
48
P25/SCK3_2
49
P26/RXD_2
50
P27/TXD_2
51
P24/TRDOI_0
52
P11/IRQ1
53
P12/IRQ2
54
P13/IRQ3
55
PA4
56
PA5
57
PA6
58
PA7
59
PB3/AN
3
60
PB2/AN
2
61
PB1/AN
1
62
PB0/AN
0
63
PB4/AN
4
64
PB5/AN
5
SCK
T2
T5C
ESDA
PWON
KEY1
CENC1
KEY1
NWC
RBEEP
VOXV
VCON
RLED
RLED
S5V
SO
RMUT
2
RSSI
IPTT
SCK
TMUT
CENC1
CBI0
NMI
HV
CL
MOD
SO
NOIS
RES
REF
DAST
AFVI
T5V
T1
UNLK
S5V
DUSE
RBEEP
R5C
HV
ADSW
UNLK
LVA
RMUT1
SQIN
CBI3
BAL
LVIN
CBI2
S5C
DUSE PLST
BEEP
STONE
MMUT
VOXV
OPT2
BATV
IPTT
MMUT TBEEP
TBEEP
R5C
SDEC
ATX
RMUT
1
STONE
KEY2
CENC0
RES
T2
R5V
MGC1
CLO
CBI1
DAST
ESCL
T1
TEMP
CENC2
TEMP
RMUT
2
SO
D ISC
CENC0
TLED
TLED
RSSI
CSFT
T5C
SENC
SENC
PLST
LVA
AFO
TMUT
AFON
LVIN
KEY2
+5V
EPTT
R5C
MOD
BEEP
CDEC
S5C
CENC2
OPT1
MGC0
BATV NOIS
SCK OPT1
OPT2
CL T5C
DISC
+5V
+5V
DISC SQIN
VCON
NWC
VREF
CDEC
VREF VREF
DISC
VREF
RMUT1
M MUT
VREF
VREF
AF
O
AFVI
AFON
+5V
S5V
R5V
T5V
NMI
VREF
AFON
SDEC
+5V
VCC
EPTT
CPU5
CPU5
CPU5
ATX
+5V +5V
+5V
PWON
S5V
CBI1
CBI2
CBI3
CBI0
T5V
DUSE
CTCSS/DTCS FILTER
ATX
EPTT
IPTT
KEY1
KEY2
CL
CPU5
CPU5
VREF
+5V
CPU5
RX
TX
A
B
C D
D
A
D
B
B
C
C
A