Icom IC-7851 Servise Manual page 157

MAIN UNIT (MAIN-4)
L1152 10U
C1153
0.1
LQW18ANR12G00D LQW18AN68NG00D
J1151
R1152
L1154
[T1LO]
R1156
TO LOCAL J3302
18
680
C1154
0.01
Q1151
MT3S20P
L1143
56N
C1144
100P
MP1143
J1131
[SCPT] 2177
TO SCOPE J13
D1141
3 1
4 2
L1141
HSMS-2829
#617DB
R1135
2.2K
L1114
Q1111
BF999
0.15U
C1120 L1113
7P 0.15U
L1112
LS-484B
J1081
R1082
[T2LO]
TO LOCAL J4201
18
FI1051
CFWS455D
I
R1048
47
IC1051
1 8
COM VCC
2 7
INH CH0
3 6
VEE CH1
4 5
GND A
C1046
TC7W53FK
0.001
FI1052
CFWS455IT
Q1041
3SK294
I
R1039
C1041
0.001
18k
J1031
R1035 C1036
[T3LO]
TO LOCAL J2201
100 0.001
IC1031
R1033
1K 8
LO2
7
L1032 GND
6
IF2
100U 5
IF1
L1033 100U
TA4107F
R1034
560
C1005
22P
2
6
MAIN-6
R1003 R1005 R1006 R1013
C1006
3
TXIF
IC1001
0.1 1K 1K 1K
NJM5534MD
LQW18AN68NG00D R1182
L1155 L1156 R1159
47
18
C1157 C1160
12P 7P L1173
Q1171
2SC5501A
10
LR-489
R1174
L1144 L1145 8.9
0
0.1U 0.15U
C1146
5.4
47P
C1148
12P L1171 R1179
5.4 C1171
0.1 47
LR-488
R1166
8.2
C1165
L1142 1
#617DB
L1165
100U
FL-348
FI1101
R1111 C1111
L1111 LR-414
4 1
GND IN
2 3
1.8U 0 0.001
OUT GND
R1113
L1101
2.7k
D1081
LR-358 R1088
L1082
3 1
0
4 2
L1083
LR-528
HSMS-2829
R1085
MP1082
R1084 0
2577
0
DRIV
O
R1074 L1071
EVM3VBE4 22K
IC1052
A GND
5 4
CH1 VEE
LS-554
6 3
CH0 INH
7 2
VCC COM R1072
8 1 2.7K
Q1071
TC7W53FK
BF999
O
R1076
NTCG16
R1077 10k
C1079
2.2
R1078
UNASBSH
Q1072
KTC2875
1k
TIFFS
Q1061
LDTC114EE
1
LO1
2
VCC R1032
C1035
3
RF2
4
0.1
RF1 4.7K
C1019
22P
2
C1021
6
R1014
3
IC1011 0.1
IC1011
1K 1K NJM5534MD
NJM5534MD
IC1001
NJM5534MD
+15V
C1182 C1196 C1200
180P 180P
0.1 D1191 R1192 L1192 C1197 C1201 L1194
1SV307 0 12U 27P 27P 12U
C1193 C1205
0.1
0.1
TXB2 R1191
1k
C1216 39P C1220 39P
D1211 R1212 L1212 C1217 C1221 L1214
5.6U 330P 330P 5.6U
1SV307 0
C1225
C1213
0.1
0.1
R1211
TXB3
1k 15P
C1236 C1240 15P
D1231 R1232 L1232 C1237 C1241 L1234
6.8U 82P
1SV307 12 82P 6.8U
C1233 C1245
0.1 0.1
R1231
TXB4
1k
C1256 27P C1260 27P
R1252
D1251 L1252 C1257 C1261 L1254
3.3U
1SV307 12 120P 120P
C1253 C1265
0.1 0.1
TXB5 R1251
1k
ALC C1276 39P C1280 39P
R1272
D1271 L1272 C1277 C1281 L1274
2.7U 2.7U
1SV307 12 33P 33P
C1285
C1273
0.1
0.1
TXB6 R1271
1k C1296 33P C1300 33P
D1291
R1292 L1292 C1297 C1301 L1294
1.8U 1.8U
1SV307 18 33P 33P
C1293 C1305
ALC
0.1
0.1
R1291
TXB7
C1316 15P C1320 15P
1k
D1311 R1311 C1317 C1321
L1312 L1314
1.5U 1.5U
1SV307 33 22P 22P
C1313 C1325
0.1
0.1
R1314
TXB8
C1336 10P C1340 10P
1k
D1331 R1332 L1332 C1337 C1341 L1334
1SV307 18 0.82U 33P 33P 0.82U
C1345
C1333
0.1
0.1
TXB9 R1331
1k C1356 0.5P C1360 0.5P
D1351 R1352 L1352 C1357 C1361 L1354
22P
1SV307 18 0.68U 22P 0.68U
C1353 C1365
0.1 0.1
TXB10 R1351
1k
L1375
0.61U
D1371 R1371 L1373 C1375 C1379
1SV307 0 0.61U 2.5P 2.5P
C1372 C1383
0.1 0.1
TXB11 R1372
1k
D1192 R1391 R1392 D1391
14.9
1SV307 8.2 8.2 1SV307 0
1SV307 R1412
C1391
TXB0
D1411
1 18
R1394 R1395 D1392
33 33 1SV307
D1212
1SV307
R1399 C1392
TXB1
100 1
C1411
0.1
TXB0
D1431
R1432
D1232
1SV307 18
1SV307
IC1391
BGA2866
6 3 IC1392
BGA2869
6 3
C1431
D1252
0.1
3.3U TXB1
1SV307
LR-494
D1451 L1453
C1452
0.1
1SV307
D1272 3.1
R1454
C1455
0
1SV307
8P
100
0.3
Q1451
2SC5551A
R1456
2.7K
D1292
Q1452
LDTC114EE
1SV307
D1312 R1472
C1473
1SV307 D1471 18 1
1SV307
Q1471
LDTC114EE
D1332
1SV307
Selected
Not selected
D1352
1SV307
D1372
1SV307
Q1022
Q1021
R1021
L2SC4081
3
2.2K
2
R1024
68
1
DMG564010
*: Refer to the PARTS LIST for the value and name of component.
9-14
MAIN-1
-8V
T8V
-12V
+15V
Q1491 Q1492
+5V
3 4 3 4
2 5 2 5
1 6 1 6
DMG564010 DMG564010
L1412 L1413 L1414 C1427 D1412
56U 56U 47U 0.1
1SV307
C1415 C1420 C1424
390P 0.0039
0.0068
C1416
0.001
R1415
220
L1432 L1433 L1434 C1443 D1432
18U 18U 12U
0.047 1SV307
C1435 C1438 C1440
390P 0.001 180P
C1441
0.0022
R1435
220
R1461
0
J1461
C1461 R1462
[PAI]
TO PA200W J1
0.1 68
J1471
[TRVTX]
TO CONNECT J162
UNASBSH
UNASBSH
PT8V PT8V
TXB0 TXB0
TXB1
TXB1
TXB2
TXB2
TXB3
TXB3
TXB4
TXB4
13.4 V TXB5
TXB5
TXB6
TXB6
0 V TXB7
TXB7
TXB8
TXB8
TXB9
TXB9
TXB10
TXB10
TXB11
TXB11
TIFFS TIFFS
TRVST TRVST
DRIV DRIV
ALC
ALC
MAIN-6
C1024
MON
0.1
4
5
6