![background image](http://html2.mh-extra.com/html/icom/ic-7851/ic-7851_servise-manual_4153040118.webp)
6-13
• MAIN UNIT B-8110C
(TOP VIEW)
[DC OUT]
[A ACC(2)]
[A ACC(1)]
[B ACC(2)]
[B ACC(1)]
[USB]
[EXT-SP B]
[EXT-SP A]
MP30
MP557
MP558
1
2
7
3
5
4
10
6
15
12
17
11
13
8
16
9
14
C4
C6
C12
C13
C15
C17
C22
C23
C24
C25
C144
C159
C160
C161
C201
C211
C212
C213
C214
C215
C216
C217
C218
C219
C220
C231
C232
C233
C234
C235
C236
C237
C238
C239
C240
C266
C281
C282
C294
1
0
3
C
8
9
2
C
C312
C372
C380
C382
C384
C386
C387
C388
C389
C391
C393
C394
C411
C412
C421
C422
C423
C424
C425
C426
C427
C428
C431
C432
C433
C434
C435
C436
C437
C438
C441
C443
C445
C446
C461
C462
C463
C464
C465
C471
C473
C475
C477
C482
C483
C484
C485
C486
C492
C493
C494
C495
C496
C510
C511
C521
C523
C525
C526
C581
C583
C585
C586
C587
C588
C589
C601
C603
C605
C606
C607
C608
C609
C641
C643
C645
C646
C647
C648
C649
C650
C661
C662
C663
C664
C665
C666
C701
C703
C705
C706
C707
C708
C709
C710
C721
C722
C751
C752
C831
C833
C834
C841
C843
C847
C848
C849
C861
C863
C867
C868
C870
C871
C888
C901
C902
C912
C913
C915
C917
C933
C941
C973
C974
C991
C992
C993
C1002
C1003
C1005
C1006
C1007
C1008
C1009
C1010
C1013
C1015
C1016
C1017
C1018
C1019
C1021
C1022
C1023
C1031
C1032
C1033
C1034
C1035
C1036
C1041
C1042
C1043
C1044
C1045
C1046
C1047
C1048
C1051
C1055
C1058
C1072
C1073
C1074
C1075
C1076
C1078
C1079
C1102
C1111
C1113
C1116
C1117
C1118
C1119
C1120
C1121
C1122
C1142
C1143
C1144
C1145
C1146
C1147
C1148
C1149
C1151
4
5
1
1
C
3
5
1
1
C
C1155
C1156
C1157
C1158
C1159
C1160
C1161
C1166
C1167
C1171
C1172
C1173
C1175
C1176
C1177
C1181
C1182
C1291
C1292
C1293
C1294
C1295
C1296
C1297
C1298
C1299
C1300
C1301
C1302
C1303
C1304
C1305
C1306
C1311
C1312
C1313
C1314
C1315
C1316
C1317
C1318
C1319
C1320
C1321
C1322
C1323
C1324
C1325
C1326
C1331
C1332
C1333
C1334
C1335
C1336
C1337
C1338
C1339
C1340
C1341
C1342
C1343
C1344
C1345
C1346
C1351
C1352
C1353
C1354
C1355
C1356
C1357
C1358
C1359
C1360
C1361
C1362
C1363
C1364
C1365
C1366
C1371
C1372
C1373
C1375
C1376
C1377
C1379
C1380
C1381
C1383
C1384
C1392
C1393
C1394
C1396
C1397
C1398
C1400
C1401
C1412
C1413
C1414
C1415
C1416
C1417
C1418
C1419
C1420
C1421
C1422
C1423
C1424
C1425
C1426
C1427
C1428
C1432
C1433
C1434
C1435
C1436
C1437
C1438
C1439
C1440
C1441
C1442
C1443
C1444
C1451
C1452
C1454
C1461
C1472
C1473
C2005
C2006
9
0
0
2
C
8
0
0
2
C
C2011
C2013
C2015
C2016
C2031
C2032
C2033
C2034
C2037
C2038
C2041
C2042
C2043
C2044
C2045
C2046
C2048
C2051
C2052
C2053
C2054
C2056
C2057
C2065
C2066
C2067
C2068
C2069
C2072
C2073
C2074
C2075
C2076
C2078
C2079
C2081
C2082
C2083
C2084
C2085
C2091
C2092
C2093
C2094
C2095
C2105
C2106
C2107
C2115
C2116
C2121
C2122
C2123
C2124
C2125
C2126
C2127
C2135
C2136
9
3
1
2
C
8
3
1
2
C
C2141
C2143
C2145
C2146
C2151
C2152
C2153
C2154
C2157
C2158
C2161
C2162
C2163
C2164
C2165
C2166
C2168
C2171
C2172
C2173
C2174
C2176
C2177
C2185
C2186
C2187
C2188
C2189
C2192
C2193
C2194
C2195
C2196
C2198
C2199
C2201
C2202
C2203
C2204
C2205
C2211
C2212
C2213
C2214
C2215
C2225
C2226
C2227
C2235
C2236
C2241
C2242
C2243
C2244
C2245
C2246
C2247
C2261
C2262
C2271
C2272
C2302
C2303
C2304
C2306
C2312
C2314
C2315
C2316
C2317
C2318
C2325
C2326
C2327
C2328
C2329
C2335
C2336
C2337
C2338
C2339
C2345
C2346
C2347
C2348
C2355
C2356
C2357
C2358
C2365
C2366
C2367
C2372
C2374
C2381
C2382
C2411
C2412
C2425
C2426
C2427
C2428
C2430
C2441
C2442
C2455
C2456
C2457
C2458
C2460
C2511
C2512
C2541
C2542
D201
D202
D251
D261
D411
13
4D
12
4D
D501
D931
D941
D952
D953
D954
D971
D976
D991
D1081
D1141
D1165
D1166
D1167
D1191
D1291
D1292
D1311
D1312
D1331
D1332
D1351
D1352
D1371
D1372
D1391
D1392
D1411
D1412
D1431
D1432
D1451
D1471
EP1
EP2
EP3
EP37
EP38
EP42
EP43
EP44
EP45
EP46
EP47
EP48
EP49
EP50
EP52
EP61
EP62
EP63
EP64
EP65
EP67
EP69
EP78
EP81
EP82
EP83
EP84
EP91
EP92
EP94
EP95
EP96
EP97
EP102
EP103
EP104
EP105
EP106
EP107
EP108
EP109
EP110
EP111
EP112
EP113
EP114
EP115
EP116
EP117
EP118
EP119
EP121
EP122
EP123
EP124
EP125
EP126
EP127
EP128
EP131
EP132
EP133
EP135
EP137
EP139
EP140
EP141
EP142
EP143
EP144
EP146
EP147
EP148
EP149
EP150
EP155
EP156
EP157
EP158
EP159
EP160
EP161
EP171
EP172
EP173
EP174
EP182
EP183
EP192
EP193
EP201
EP202
EP203
EP204
EP213
EP214
EP215
EP216
EP217
EP218
EP219
EP220
EP221
EP232
EP233
EP234
EP235
EP236
EP237
EP238
EP239
EP240
EP241
EP291
EP292
EP411
EP412
EP413
EP721
EP722
EP751
F201
FI1051
FI1052
FI1101
IC22
IC291
IC381
IC421
IC431
IC461
IC721
IC722
IC751
IC752
2
8
7
C
I
1
8
7
C
I
IC1031
IC1051
IC1052
IC1391
IC1392
IC2001
IC2002
IC2021
IC2022
IC2071
IC2131
IC2132
IC2191
IC2301
IC2411
IC2441
J1
J31
J61
J91
J121
J131
J133
J171
J171
J176
J187
J196
J197
J198
J199
J201
J211
J212
J231
J232
J291
J411
J412
J413
J1031
J1081
J1131
J1151
J1461
J1471
L4
L5
L421
L461
L841
L861
L1041
L1042
L1071
L1082
L1083
L1101
L1111
L1112
L1113
L1114
L1141
L1142
L1143
L1144
L1145
L1151
L1154
L1155
L1156
L1166
L1171
L1173
L1291
L1292
L1293
L1294
L1295
L1311
L1312
L1313
L1314
L1315
L1331
L1332
L1333
L1334
L1335
L1351
L1352
L1353
L1354
L1355
L1372
L1373
L1374
L1375
L1376
L1391
L1392
L1393
L1411
L1412
L1413
L1414
L1431
L1432
L1433
L1434
L1451
L1453
MP1082
MP1143
Q24
Q252
Q253
Q261
Q266
Q271
Q272
Q411
23
4Q
22
4Q
Q501
Q791
Q792
Q971
Q972
Q976
Q977
Q995
Q1021
Q1022
Q1041
Q1061
Q1071
Q1072
Q1111
Q1151
Q1171
Q1451
Q1452
Q1471
Q1491
Q1492
Q2021
Q2022
Q2023
Q2261
Q2271
Q2381
Q2511
Q2541
R11
R16
R24
R25
R31
R32
R33
R34
R35
R36
R39
R40
R41
R66
R68
R70
R71
R72
R73
R74
R75
R76
R77
R79
R80
R93
R98
R99
R100
R101
R134
R136
R138
R152
R153
R154
R176
R177
R178
R179
R180
R181
R186
R187
R188
R189
R190
R191
R251
R253
R254
R255
R256
R261
R262
R263
R264
R266
R267
R271
R272
R281
R282
R283
R284
R285
R286
R287
R288
R294
R296
R297
R299
R300
R313
R314
R373
R374
R382
R383
R384
R385
R404
R405
R411
R412
R413
R414
R422
R423
R425
R432
R433
R435
R443
R444
R445
R446
R447
R448
R449
R450
R451
R461
R466
R467
R481
R482
R483
R484
R485
R486
R487
R488
R489
R491
R492
R493
R494
R495
R496
R497
R498
R499
R505
R506
R507
R508
R524
R526
R527
R529
R531
R532
R583
R584
R585
R586
R587
R588
R589
R590
R603
R604
R605
R606
R607
R608
R609
R610
R643
R644
R645
R647
R648
R649
R650
R651
R653
R654
R663
R664
R665
R666
R667
R668
R669
R670
R704
R705
R707
R708
R710
R711
R713
R714
R720
R721
R722
R723
R724
R725
R726
R727
R728
R729
R736
R737
R738
R739
R740
R741
R742
R743
R744
R745
R746
R747
R748
R749
R750
R751
R760
R761
R762
R763
R783
R791
R842
R843
R844
R849
R850
R862
R863
R867
R868
R871
R872
R887
R888
R901
R902
R903
R904
R906
R913
R914
R915
R916
R919
R921
R933
R934
R935
R936
R940
R941
R942
R943
R944
R945
R946
R947
R948
R955
R956
R957
R958
R959
R960
R961
R962
R963
R970
R971
R972
R973
R974
R975
R976
R981
R982
R983
R984
R985
R986
R988
R989
R990
R991
R994
R996
R997
R998
R999
R1003
R1004
R1005
R1006
R1013
R1014
R1021
R1022
R1023
R1025
R1031
R1032
R1035
R1039
R1040
R1041
R1042
R1043
R1044
R1045
R1046
R1047
R1048
R1050
R1051
R1052
R1053
R1056
R1057
R1060
R1061
R1062
R1072
R1073
R1074
R1075
R1076
R1077
R1078
R1081
R1082
R1083
R1084
R1085
R1088
R1111
R1113
R1115
R1116
R1117
R1120
R1151
R1152
R1153
R1154
R1157
R1158
R1159
R1160
R1165
R1166
R1167
R1168
R1169
R1171
R1172
R1173
R1174
R1176
R1177
R1178
R1179
R1181
R1182
R1183
R1291
R1292
R1293
R1294
R1311
R1312
R1313
R1314
R1331
R1332
R1333
R1334
R1351
R1352
R1353
R1354
R1371
R1372
R1390
R1391
R1392
R1394
R1395
R1396
R1411
R1412
R1413
R1431
R1432
R1433
R1451
R1453
R1461
R1462
R1463
R1464
R1471
R1472
R1473
R1474
R1475
R2001
R2002
R2020
R2027
R2028
R2031
R2032
R2033
R2034
R2035
R2041
R2042
R2043
R2044
R2045
R2046
R2047
R2051
R2052
R2053
R2054
R2055
R2056
R2063
R2064
R2065
R2066
R2067
R2068
R2069
R2071
R2072
R2073
R2074
R2081
R2082
R2083
R2084
R2085
R2091
R2092
R2093
R2094
R2095
R2103
R2104
R2105
R2106
R2107
R2113
R2114
R2115
R2116
R2117
R2118
R2121
R2122
R2123
R2124
R2125
R2126
R2128
R2131
R2132
R2151
R2152
R2153
R2154
R2155
R2161
R2162
R2163
R2164
R2165
R2166
R2167
R2171
R2172
R2173
R2174
R2175
R2176
R2183
R2184
R2185
R2186
R2187
R2188
R2189
R2191
R2192
R2193
R2194
R2201
R2202
R2203
R2204
R2205
R2211
R2212
R2213
R2214
R2215
R2223
R2224
R2225
R2226
R2227
R2233
R2234
R2235
R2236
R2237
R2238
R2241
R2242
R2243
R2244
R2245
R2246
R2248
R2261
R2262
R2263
R2271
R2272
R2273
R2301
R2302
R2303
R2312
R2313
R2314
R2315
R2318
R2319
R2320
R2323
R2324
R2325
R2326
R2327
R2328
R2333
R2334
R2335
R2336
R2337
R2338
R2343
R2344
R2345
R2346
R2347
R2353
R2354
R2355
R2356
R2357
R2363
R2364
R2365
R2366
R2367
R2372
R2381
R2382
R2383
R2411
R2423
R2424
R2425
R2426
R2427
R2428
R2430
R2432
R2433
R2441
R2453
R2454
R2455
R2456
R2457
R2458
R2460
R2462
R2463
R2511
R2512
R2513
R2541
R2542
R2543
RL411
RL421
RL431
RL501
X291
X381
B8110C
MAIN UNIT
J131
TO DSP J1
TO LOCAL J2201
J197
J196
TO RF-A J3701
TO RF-B J3701
J413
J198
TO VR-C J2
TO SW-A J105
J
J61
J91
TO LOGIC J1251
TO LOGIC J1291
J199
TO VR-C J2
R1074
R983
C1102
TO LOCAL J3302
TO LOCAL J4201
R985
CP972
TO SCOPE J11
D
K
C
J1
TO LOGIC J1201
J31
J121
J176
J187
TO CONNECT J162
TO PA200W J1
TO DIGISEL-A J2017
TO DIGISEL-B J2017
TO DIGISEL-A/B J2018
TO PA200W J2
TO CONNECT J11
O
L
TO DSP J182
J133
2A
H0
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
H80
H85
H90
H95
H100
H105
H110
H115
H120
H125
H130
H135
H140
H145
H150
H155
H160
H165
H170
H175
H180
H185
H190
H195
H200
H205
H210
H215
H220
H225
H230
H235
H240
H245
H250
H255
V0
V5
V10
V15
V20
V25
V30
V35
V40
V45
V50
V55
V60
V65
V70
V75
V80
V85
V90
V95
V100
V105
V110
V115
V120
V125
V130
V135