Icom IC-910H Service Manual page 36

Nov. 2008
MAIN UNIT (2/3)
14V
J2
IFM
1
GND
2
3
14V
4
14V
K
5
D
6
S
GND
7
1 DRES
8
TXS
9
.
RXS T9V
10
12TP
2 11
1FOR
12
G
12PV
13
OPB1
14
-5V
15
U
PCK
16
PDAT
17
N
12ST
18 L1
12PS C1
I 19
12DS
20
12UL
21
GND
22
GND
23
GND
24
IFS R1
25
CP21
J1
12UP
1
IFM D1
2
GND
3
4
14V
5 C63
14V
6
7
L2
GND
8
DRES
9
TXS
10
RXS Q21 Q22
11
R22 C3
12TP D21
12
1FOR
13 C2
12PV
14
OPB1
15
-5V R21
16
C21
PCK R23 C22
17
PDAT
18
12ST
19
12PS R24
20
12DS
21
12UL
22
GND
23
GND
24
GND
25
IFS CP51
26
C56
CP53 D51
CP54
CP52 C52
C61
R56
J51 R57 R60
D52
C51
FI51A FI51B
P D54
A
D53
L51 L52
J52
R53 R55
R59
CP55 C53
R54 C55
R51 R52 C54
R58
UFR9
C104
IC101
1 2345 6 7 8
Q101
C102
R102
C101 R101
C121
L102
C103
R103
C107
R107 R108
R109
R106 C108
4 5 6
Q102
C115 R110
L103 C113
Q105
3 2 1
Q103
C110
C116
R105
N
S RSIM
C425 Q
M
R420
L401
R421 C421 C411
R419
C404
R411
R413
R401 IC401
16 OSCIN 1 FI312
15 MIXIN
X401
OSCOUT 2
14 GND
MIXOUT 3
13 N-REC
VCC 4 C416
12 N-DET
C402 IFIN 5
11 RSSI
DEC 6
10 IFOUT
FILOUT 7 R403
9 QUAD
FILIN 8
AFOUT
D401
C406
C407 FI311
C414
C405
R402
R410 C410 R405
R404
R406
Q404
C403 C401
C408 C409
C417
R407
R2 R4 R5 C10 R10
Q1
D2
R3
R8
L3
R7
C7
C4 R9 C8
R6
D204
C5 C6
ALC
9V
R9V
AGCM
R61
C62
D55
Q51
R151
FI151
R62 C60
D151
1 2
R63
R65
R67 34
D152
R152
L53
R153 R155
Q52
R66
C57
C58 C152
R68 C151 R154
R64 C59
D101
CP151 CP152
D155
R158
D156
C106 R161
R104
R159
C153 C156
R160
R114
C119
Q107
C118
43
D159 C160 D161
5 2
6 1 D162
R165
C161
R112
Q106
R113 R166
R111 R167
C158 C159
R164
N
C117
B
S
M
9V
5V
BFOM
OUTM
R457 R461
C457
IC451C
R417
9
R459
10
R418
C458
R412 C412
D402
R467
R409 C459 C462 C472
R456 R464 R492 C478
R408
C460 R465 R466
C461
R414
C477
C413
Q406 R469
C482 R476
Q402
3 4
R475
R474 C468
2 5
C467
1 6
Q405
C465
43
R471 R472 R473
5 2
6 1
R470 C464
C466
R477
R478
W
N C C469
C R479
T
M
C
M
35
12UP
R219 D207
R202
L201 R201
Q201
C205
TCWM
R203
L202
D201
R206
1F1M C201 C202
1F2M R205
R207
C203 C204
D203 C215
D206
R217
D202
Q251
C207
43 R211
R212
5 2 C217 R210
R218
C216
6 1
ALC
9V
R9V
-5V
AGCM
T9V
D205
R268
C162
R169 Q271
43
R157 5 2
R269
D153
6 1
L251
C266
1F1M
D154
Q151
R270
3 4
R271
R253
R156
2 5
Q252
1 6
L252
UFR9 Q253
2 3
R251
D252 L253
4
1 5
R252
D157 R254
D158 1F2M C251 C253
C254
R255
Q152
3 4
R345
R162 2 5 C345
C252
R256
1 6
C372
R340 R341
C340
R168
R346 C342
Q351
C344 L352
D352
1FTM
R371
C354
Q153 Q350
3 4 R355
2 5
R353
R344 C355
1 6 C352
R163
R372
C157
C353
R462
8
R463
C483
R482
5V
C473
IC451D
13
C463
14
12
1
R468
6
R458
12 X 14
X0 .
13 Q407
X1
Y 15
2
R481 Y0
1 Z 4
AFSM
Y1
R505 AFFM 5
Z0
AFTM 3
Z1
R484 R490
6
INH
11 C486
A
10
B
9
C . .
IC452
R504
7 8
D491 R491
S D A A
Q S F F C474
L S 1 2
M W M M C475
R486
R485
-5V
KDS
SSBI
14V
T9V
9V
C313
R305
R302
13
R306
14
R303
12
IC1804D
R304
C206 L203
R209
C218
IC201
R208 1 V- 14 R1881 IC1804C
VS+
2 NC 13 10
VCS
3 VO- 12
8
VCS
4 NC 11 9
VS- R222 C212
R1882
5 VC- 10
BIAS
6 NC 9
VO+
7 VC+ 8 R221
NC
R1880
R215
R213
C1876
C208
C209 C219 R216 R1879
C213
R220 R1888 R1887
C211
L204
C210
C214
C314
R265
R264
C257
Q302
43
R258 5 2
R266
R267 6 1
Q254 X251
R263
L254 L255
C255
R310
C259
R261
D253
C262
R257 R259
C258
C260
R260
C261
R315
R262
D303
R358
C309
C357
R364
R359
Q352
R368
R360
C364 IC351
R356
8 IFOUT 1
R365 7 COLECT
L354
VCC 2
C359 6 GND
R363 C365 OSCIN 3
5 BASE
L353 BASE 4
BASE
C361
R361
C356 C366 C367 C368
C358 R362 C360 R375
9V
5V
R374
R497
C484
R498 IC451B
C479
4
2 6 C481
1 7
R487 R488 R489
3 5
1
1 IC451A
R495
C476 C480
C485
R499
R496
*Refer to "PARTS LIST" for the parts name and value.
12UP
12UP
14V
14V
IFS
IFS
KDS
KDS
SSBI
SSBI
T9V
T9V
CP853 9V
9V
D304
SMLM
SMLM
D305
RFGM
RFGM
R1891
R307
Q301
C305
R308
C304
R309
5V
D302
ALC
ALC
9V
R9V
R9V
-5V
-5V
AGCM
BFOM
RSIM
AGRM
AGRM
AGFM
AGFM
AGSM
AGSM
Q303 Q304
43 43
C307
5 2 5 2
C306
6 1 6 1
R311
C308
R312
R313 R314
MODO
MODO
R317
1F1M
1F1M
1F2M
1F2M
1FTM
1FTM
R316
WNCM
WNCM
AF1M
Q305 AF1M
AF2M
C310 AF2M
SQLM
SQLM
-5V
TCWM
TCWM
NBSM
NBSM
C311
C312
OPB1
OPB1
TXS
TXS
RXS
RXS
L355
C371
R369
1FOR
1FOR
12PV
12PV
12UL
12UL
12DS
12DS
12PS
12PS
C370
12ST
12ST
12TP
12TP
C369
NSQM
NSQM
CTCM
CTCM
OUTM
OUTM
CENM
CENM
DSSW
DSSW
J501
BFOM PLL
1
3
GND PCK
2 4 PCK
PDAT
PDAT
BFOM DRES
DRES
AFIS
AFIS
AFIM
AFIM
AFM
AFM