Icom IC-7400 - Page 64

9 - 5
• MAIN UNIT
(TOP VIEW)
DATA
EXT SPREMOTE
SEND
ALC
ACC(2)ACC(1)
PPWS1
29
2
to PA
unit J5
30
J120
PFSB
PMCK
P5V
THML
P8V
PT8V
PVRF
GND
PICL
P14A
P14V
P14V
P14V
P14V
PDRS
PMDT
P5V
PH5V
P8V
GND
GND
FVFR
PGND
PICH
P14A
P14V
P14V
P14V
PHV
1
2
to S-LOGIC
board J601
22
21
J180
FSPS
PAFE
FLMF
FDRS
SQL
MICE
GND
GND
5VL
GND
GND
PAFO
FLFM
GND
FPWK
SEND
MIC
- 8V
GND
5VL
8V
14V
J140
1
2
to CTRL
unit J7
22
21
CIKY
GND
GND
GND
CFOR
GND
GND
C5V
GND
GND
C14V
CIST
CANT
CDRS
CREF
GND
C - 8V
C5V
NC
CT8V
C14V
C14V
1
29
2
to DSP
unit J902
30
J1000
GND
GND
DRQW
DCK
GND
DRQR
DRBY
GND
CTFL
TOFF
VSQL
NC
GND
DSKY
DRES
NC
GND
DWBY
DDTW
GND
DDTR
DSTR
GND
NSQL
RTDT
DCBY
NC
GND
DSST
GND
4
to CHASSIS J1
1
J761
EGND
E14V
EST
EKY
21
1
22
2
to RF unit J1001
J160
CON2
PDAT
PST4 PST2
LDRS
UNLC
GND
5V 8V
GND
14V
PCK
PST5 PST3 PST1
GND GND
5V
GND
8V
14V
FCNT
2
8
1
to optional
unit UT-102
7
J1920
SSTB
MCK_UT
SPCE
SPCH
MDAT_UT
SBSY
5VL
GND
21
1
22
2
to DSP unit J901
J1001
GND
GND
DRAF
GND
MONI
GND
8V
GND
GND
GND
DRIF
DTIF
GND
GND
GND
DAGC
GND
8V
GND
DTAF
GND
GND
22
to RF unit J2
21
1
2
J100
-
8V
GND GND GND GND GND
AGC
TNV1
RSKY
RDRS
RMDT
14V
8V
T8V
R8V
5V
ALC
TNV2
RTXS
DRIV
RBST
RMCK
GND
MF+
J802
2
to CHASSIS MF1
1
21
to CTRL
unit J13
PA FE
SSP
J741
from RF unit J261
2IF
P261
1
2
to RF unit J1601
J400
3LO
GND
D550
EP3
W500
C100 C101 C102 C103 C104
C105 C106 C107 C108 C109
C110
C111
C120
C122
C123
C124
C125
C126
C129
C131
C132
C133
C134
C135
C140
C141
C142
C143
C144
C145
C146
C147
C148
C149
C160
C161C162
C163
C164
C180
C183
C184
C185
C188
C189
C190
C191
C192
C193
C196
C197 C198
C199
C200
C201
C203 C204
C208
C209
C210
C211
C214
C215
C216
C217
C218
C250
C251
C253
C255
C256
C257
C260
C261
C264
C265
C282 C283
C284
C285
C286
C302
C304
C305
C307
C330
C331
C332
C333
C334
C360
C361
C362
C363
C364
C380
C381
C382
C383
C400
C401
C402
C403
C404
C405 C406
C407
C408
C409
C450 C451
C500
C501
C502
C503
C700
C701
C740
C741
C742
C760C761
C762
C783
C784
C793
C794
C795
C796
C801
C802
C804
C1001
C1002
C1003
C1004
C1005
C1006
C1007
C1008
C1020
C1040
C1041
C1060
C1061
C1062
C1063
C1065
C1080
C1082
C1084
C1085
C1086
C1087
C1100
C1102
C1103
C1104
C1106
C1107
C1108
C1110
C1140
C1141
C1160
C1161
C1180
C1181
C1182
C1183
C1184
C1186 C1187
C1188
C1189
C1190
C1191
C1192
C1220
C1221
C1240
C1242
C1243
C1244
C1245
C1246
C1247
C1260
C1261
C1281
C1286
C1300
C1301
C1302
C1303
C1304
C1305 C1306
C1307
C1308
C1309
C1400
C1401
C1402
C1403
C1404
C1405
C1406
C1407
C1408
C1409
C1410 C1411
C1412
C1413
C1414
C1415
C1416 C1417
C1418 C1419
C1421
C1422
C1423
C1426
C1427
C1428
C1429
C1460
C1461
C1462 C1463 C1464 C1465
C1466
C1467
C1470
C1480
C1481
C1500
C1501
C1502
C1503
C1504
C1505
C1506
C1507
C1508
C1509
C1510
C1511
C1512
C1560
C1561
C1720
C1760
C1780
C1800
C1802C1803
C1804
C1840
C1841
C1845
C1846
C1860
C1861
C1862
C1880 C1881
C1900
C1901
C1902 C1904
C1906
C1907
C1920
C1921
C1940
C2000
C2020
C2021
C2022
C2040
C2041
CP200
CP200
CP300
CP300
CP1460
CP1460
D200
D202
D250
D251
D303
D305
D310 D311
D312
D360
D361
D362
D363
D364
D380
D381
D382
D383
D450 D451
D550
D551
D552
D553
D700
D720
D721
D722
D723
D740
D781
D782
D783
D784
D801
D1300
D1822
D1824
D1825
D1826
D1840
D1841
D1880
D1881
D1900
D1901
D1940
D2000
EP101
EP181
EP182
FI271
FI272
FI381
IC200
IC281 IC282
IC400
IC502
IC1160
IC1220
IC1240
IC1310
IC1400
IC1500
IC1560
IC1900
IC2040
J100
J120 J140
J160
J180
J250
J400
J700
J740
J741
J760
J761
J780
J781
J782
J802
J1000
J1001
J1620
J1620
J1920
L120
L121
L123
L124
L128
L130
L141
L143
L181
L200
L201
L202
L203
L250
L251
L252
L253 L254
L280
L281
L330
L400
L402
L740
L760
L761
L762 L763
L792
L1241
L1401
L2020
MP200
Q200
Q201
Q202
Q203
Q204
Q205
Q206
Q207
Q208
Q250
Q300
Q301
Q302
Q303
Q304
Q305
Q306
Q308
Q309
Q330
Q381
Q450 Q451
Q452 Q453
Q511
Q700
Q720
Q721
Q722
Q740
Q780
Q782
Q783
Q784
Q787Q788
Q790
Q802
Q1140Q1261
Q1860
Q1880
Q1940
Q1941
R102 R105
R120
R121
R122
R123
R124
R140
R141
R142R143
R160
R182
R183
R184
R200
R202 R203
R204
R205 R206
R207
R208
R209
R210
R211
R212
R213
R215
R216
R217
R218
R219
R220
R221
R222
R223
R250
R251
R252
R253
R254
R255
R256
R257
R258
R259 R263
R264
R281
R282
R300
R302
R306
R307
R308
R310
R311
R315
R317
R318
R319
R320
R321
R324
R326
R327
R328
R330
R331
R332
R333
R334
R335
R336
R337
R360 R361
R363
R364
R365
R366
R367
R368
R369
R370
R380
R381
R382
R383
R384
R385
R386
R387
R388
R389
R390
R400
R404
R405
R406
R407
R408
R409 R410
R411
R412
R413
R414 R415
R452
R455
R500
R501R502
R503
R511
R512
R521
R522
R523
R524
R525
R526
R527 R528
R551
R554
R555
R557
R561
R562
R700
R701
R702
R703
R720
R721
R722
R723
R724
R725
R726
R727
R740
R780
R781R782
R783
R785
R786
R787
R788
R789
R790
R791
R792 R793 R794 R795
R796
R797
R803
R1000
R1001
R1002
R1003
R1004
R1005
R1006
R1007
R1008
R1009
R1013
R1020
R1021
R1040
R1062
R1064
R1083
R1100
R1101
R1102
R1103R1104
R1105
R1106
R1107
R1108
R1109
R1110
R1126
R1140
R1141
R1160
R1161
R1162
R1180
R1181
R1182
R1183
R1220
R1221
R1222
R1240
R1241
R1281
R1287 R1288
R1300
R1301
R1302
R1303
R1304
R1306
R1307
R1308
R1309
R1310
R1311
R1312
R1313
R1314
R1315
R1400
R1401
R1402
R1403
R1404
R1406
R1411
R1412
R1413
R1414
R1415
R1416
R1417
R1418
R1419
R1420
R1424R1425
R1460
R1461
R1462
R1463
R1464
R1465
R1466 R1467
R1469
R1480
R1500 R1501
R1502
R1503
R1504
R1505
R1506
R1507
R1508
R1509
R1510
R1511
R1512
R1560
R1561
R1700
R1701 R1702
R1720 R1721
R1740
R1741
R1742
R1743
R1760
R1780
R1800
R1801
R1802
R1803
R1804
R1828
R1840
R1841
R1842
R1843
R1844
R1845
R1846 R1847
R1852
R1853
R1860
R1861
R1862
R1863
R1864
R1880 R1881
R1882
R1883
R1900
R1901
R1902
R1903
R1904
R1905
R1906
R1907
R1908
R1909
R1910 R1911
R1912
R1913
R1920
R1921
R1922
R1923
R1924
R1925
R1940
R1941
R1942
R1943
R1944
R1945
R1962
R1964
R1965
R1966
R1967
R1968
R1969
R1970
R1971
R1972
R1985
R1986
R1987
R1988
R1989
R1990
R1991
R2000R2040
R2041
R2042
RL740
RL781
W120
W180
W200
W270
W300
W304
W331
W361 W362
W380
W400
W740
W1120
W1220
W1300
W1401
W1600
W1601
W1602
W1603
W1604
W1605
W1606
W1607
W1608
W1609
W1610
W1940
W1941
X1500
B5699J
3
8
7
6
2
1
4
W14 (CHASSIS)
5
AMPO
VPO
50PO
ICAPC
DIP
R331
R1469
R200
SPCH LVL
R1925
OPTION
R306
R311
R320
R317
UT-102
R555
W23 (CHASSIS)
W18 (CHASSIS)
W16 (CHASSIS)
J761
J160
J120
MP72
W15 (CHASSIS)
(CHASSIS)
J140
J180
J400
J100
J802
J741
The combination of top side and bottom side of this
page shows the actual confi guration of P.C. board.