Icom IC-9100 Service Manual page 103

SECTION 7. BOARD LAYOUTS
• DISPLAY UNIT
(TOP VIEW)
2
J91
PBT2AK TO PBT
PBT2BK
GND
PBT1AK
PBT1BK
GND
3
16
R232 R228
J81
TO M-CH
R183 R184
R182 R181
SDIALAK
SDIALBK
GND
MCHAK
MCHBK
GND
R227 R226 R229
J71
4
TO RIT
GND
GND
GND
RITDAK
RITDBK
3R3V
5
• DC-DC UNIT
(TOP VIEW)
7 - 1
J1
R262 R611
R634
R622 R612
R633
C375
R632 R623 R613 J1
C374 C379 R264
C1221 R624 R614
C373 C378 R601
C372 C377 R602
R603
C371 C376
C355
C354 C359 EP3 J1
C353 C358 TO MAIN
C357
C352
C351 C356
R237
R240
R239
R404
R413 C405
R238
R403
R405
R408 C521
R224
R406 R419 C181
R420
C526
R407
R421
C525
R409 IC401 C182
R422
C524
R423
C523
R410
R424 C183
C522
C403 R425
R301
R426
C401
C402 C404
R417
X401
J101
R652 R643 R644
R642 R653 R654
CP281
R293
R292
17 R287 R291
R300 R290 Q503
R299 R289
R298 C52
R296 R288 R52
D501
R51
C281
J101
C271
R275
R276 B-7160D
C272
DISPLAY
7
R231
6
J455
1
B7294C
DCDC
C6
EP303 L303
EP8
GND
14V
14V
-12V
R308
10V
C311
8V
NC
DCTMP
4
J452
J452
J452
R174
C148
TO LCD
R156
R175
C151 R162
R157
R149
C149 C152
R172 R173
C146
R158
R154
R159
C147 IC501
R502 R501 C501
IC561
J454
TO LCD
J454
J453
J455
TO LCD
TO LCD
J455
10
R221 R220 R219 R218
R260 R702 R703 R704
8
R711
R259 11
C711
9
7 R 2 1 7 R 3 1 7 R 4 1
J454
C310 C210
EP203 L203
C309 C209
C308 C208
R314 R214
R318 R218
C204
C313 C213
R203
R313 R213
R209
R208
R312 R212
R206
C211
Q201
C203
L201
L202
C202
C201
EP302 EP202
F302 C319 F202 C220
F201 R221
+8V
-12V
+10V
J451
1
J61 R189 R192
R194 R193
TO VR-A
J451
R118
IC111
C1117
J451 R113
R115
TO LCD
C117
R201
R202
R195
C114
R32
R211
J32 TO MAIN
L32
MPHN
CP21 L31
MPHNE
SPHN R31
SPHNE
R21 R215
C115
R117 C21
R116 R22
J31
TO JACK
IC541
T113
C116
J453
MP111
J51
TO VR-B
D201
12
R217
EP21
R223
MICI
GND
MICE
GND
R255
GND
MSEND
14
SQLS
MUDK
AFO
8V
R55
J21
TO MIC
13
J453
2
3
The combination of this page and next page shows
the top side and bottom side of actual P.C. board.
GND
NRBK
NRAK
GND
NOTBK
NOTAK
R212
GND
15
DOTK
R213 DSHK
GND
PHNK
PHES
PHOM
PHE
R214
PHOS
PHEM
GND
GND
SRFL
SAFL
GND
GND
MRFL
MAFL
NC
3R3V