Icom IC-7851 Servise Manual page 108

• LOGIC UNIT B-8118B
(TOP VIEW)
2 J1351
0 1 C 1 4 R1044
R1043
IC1041
J1301
Q6161 Q6141
R1038
C6062
R6078
R6077 IC6161 IC6141
R1061
R6076
R6244
R6211
R6075 R6243
C6063
R6074 Q6201
R6073
R6072
R6071
R6000
C6016
R1501
R1502
C6051 R6050
R1503
EP1511
R1504 C6011
R1505 R6032
R1506
R1509
C6007
R1510
EP1463 R1463
C6009
EP1466
R1466
EP1469 R1469
EP1472
R1472
EP1475 IC6065
R1475
EP1478
R1478
R1481
C1481
IC6081 Q6081 Q6082
L1481
MP2351
C2228
C1102 R2223 R2224
L2221
EP1433
IC2221
IC2051
EP1101 R1434 R2222
R1433
EP1104 EP1432
EP1431 C2224 C2221
C1103
R1431 R1432
R1108 C1436 C1431 C2225 C2226 C2222
R1101
R1109 C1437 EP2221
C1192 C1191
R1110 C1432 C2227
R1102
C2208
C1433
R1103 P E 3 1 2 9 EP1391 P E 3 1 3 9 P E 1 1 3 9 P E 1 1 4 9 R2203
R1111 C1435
R1104
R1112 C1434
R1105
R1113 C1439 L2201
R1106 C1438 IC2201
R1114
R1107
3 J1391 J1191
R2201
R2206
C2205 C2206
C2201
C2022 EP2021 C2204 C2207
EP2201
Q2022
R2021
R2022
R2023 R1011
C1412
C1417
J1151
J1401 Q1011
EP1401 Q1012 D1011 Q1002
C1160 C1159 EP1406
C1411
C1407
6-3
5
C 0 1 2 4
R1049
IC3151
IC3251 IC3201
R1034
C3302
D3378 D3377 D3376 D3375 D3374 D3373 D3372 D3371
D3368 D3367 D3366 D3365 D3364 D3363 D3362 D3361
D3358 D3357 D3355 D3354 D3353 D3352 D3351
IC3301
R3405
C3408 R3404 C3407 C3406 C3405
C3301
R3036
C3601
R3601
R3602
IC3601 R3022 R3021
R3603
R3604
R3609
R3608
R3607
R3606
C3603 C3604
LOGIC
C 4 3 3 1 C 4 3 4 1 C 4 3 5 1 C 4 3 6 1 J1061
B8118B
J3041
MP2301
R2352 C2355
C1295
EP1291
R2353 EP1296
R2356 C1294
C2314
C2311 EP1297
C2313
R2362
R2359 EP1292 C1293
R2361
EP1293
C2357 C1292
EP1294 C1291
EP1295
L2351
C2310
Q2321
4 R2322
C2308 C2309
R2323
R1001
C2304 C2305
IC2301
C2303 C2306
C2012
C2302 R2310 R2313 C2307
R2309 R2314
Q1001 R2311
R2308
C2301 R2305
R2301
R2304
D1001
J1251
R4010
J3551
R4141 R4140
IC3101
C3502 C3503
R3511
X3501
EP3511 J1201
R3502 R3501
R3517
C3501
MP4151
C3008
C3009
R3091
IC3001
C3010
IC4001
R3058
R3070
6
R3023 R3024
X4001
C4042 C4041
D4291
R4293
D4294 C4294
R4295
D4293
R4297
D4292
R4291
R4027
R4234
EP2122
C2250 C2258
C2251 C2252
J1601
C2123
EP1601 EP1602
R2012
R2001 R2251 R2252 IC2162
Q2001
C2249
C2247 C2248
C2243 C2256 L2141
IC2241
2 2 C 3 5 C 2 2 4 5
C2242 R2250 R2257 C2257
R2249 R2254
R2248 R2255
EP2142 C2145
C2241 R2245
R2241
R2244
MP2201 MP2101
1 DS5001
J4281
R5006
R4282
DS4282
C5033 C5032 C5043 R5045
C5021 R5046
R5050 R5054
X5031 R5049 R5053
R5048
[LAN]
R5047 R5051 R5056
R5052 R5055
R5031 R5032
R5044
R5043
C5041 DS4281
R5033 R5041
R5042 C5042
C5031
R4281
J4272
7
[S/P DIF OUT]
L4272
C4157 C4156
C4273
J4271
IC4151
[S/P DIF IN]
L4271
C 1 4 1 5 C 1 4 2 5 1 4 C 3 5 C 1 4 4 5 C4155
C4107 C4106
J4291
IC4101
C4291
[USB-A]
MP4291
C 1 4 1 0 C 1 4 2 0 C 1 4 3 0 1 4 C 4 0
C4105
C4292
C4231
J4251
R4236
C4201
C4202 D4214
C4219
R4232 R4217
EP4301
D4212
EP2102 L4212
D4211
EP4221
IC4221 C4203
R4221
D4213 L4213
C4263 [EXT MONITOR]
R1026 R1022 R1023
D4215
R1025 R1024 L4251
R4218
C4259 R4267
C1024 L4252
C4260 R4268
C4264
C2103
IC1021
C4258
C2162 IC4251
C4261
R1030 R1031 C4257 R4264
R2163 R1032 R4262
R2161 R4261
R2162 C4256 L4254 R4263
R2164 C4255 R4265
C2148 R2145 C1021
R4266
R2143 R2144 R4251 L4253
R4252
R4253
R1028
IC2141
C1022 R4254 C4262
Q1022
R2141
8
C2141 J1021
EP2141