Icom IC-910H Service Manual page 30

Nov. 2008
• PA UNIT
(TOP VIEW)
J1
4
J39
16 14V
14V 15
UTU1 Q702
5V
UPRI
R702
UT9V
C703
VUMS
R703
to MAIN unit J1351 UR9V
UATT
VUT9
POWS
FOR
REF
43PV
2 NC2
GND 1
C941
P510
V SUB
to MAIN unit J651
C621
144M 1Lo C620
from PLL unit J251
J503
P251
P501
V MAIN
to MAIN unit J51
L581
C83
R586
C84
R588
C538
R589
C571
J504
16 VUTP
VTU1 15
14PV
GND
VT9V
HV
UR9V
to MAIN unit J1301 VATT
UTU2
GND
VPRI
C922
BAND
C929
VTU2 MP501
ICL C930
2 ICH
1
NC1
L504
C517
1 4
J932
to DRV board
1 4
J931
to DRV board
J50
J50
1
SPE
to MAIN unit J1853 1
2
SP
J51
2 SPE
to SP1
1 SP
to UX-910
VHF ANT
L722
L721
W710
L723
C734
144ANT
L720
C724
C706
B5573Q
R726 C725
MP511
C708 C726
C721
R530
R528
L512
C545
L522 R527
R525 C561
C562 C563
L513 L560
C549 C552 D514
R547
C556 C560
C610 C609 D513
C558
Q511 R526 C569
C555
R544
L528
Q512 C676
C678
R539 EP911
C604
C603
R540 C602
MP12
C587
MP46
C33
C34
C37
C80
C936
12 13
C927
C928
J510
V1Lo
C544
Q505
L621
L656
R583
MP41
R584 VSUB
R536
4
C580 MP41
1
VMAIN
IC502
8 5 J501
L518
Q651 Q652
D651
C584 7
L520 L501
D517
C585
R538
D518
Q 6 5 1 Q 6 5 2
C954 C92
Q501 R503 6 R 1 6 6 R 2 6
C420
C917
W558 W557 C143
C916
C507 R504 C506
C573
R507
C618 C520
D502
R506 L132
C619 R504
C510 C509
C915
L135
C914 10
R666
C913 C657
C747
C658
L502
Q131
11
R668 W520
C359
C512
R665 C90
EP53 W521
C117
R138
Q117
C907
R135
R667
C904
C379
C529 R667
6 1
R669
C905
4 3
C903
C89
C129 C134
C642 L130
D641 L131
C644
C645 J932
D642
C646
L642
R643
R644
R645
C633
MP7
R214
L205
L207 R27
L97 R131
C919 C98
C918
C210
SPEAKER
29
W305
P300
6
6 L184 L180
C185
C194
1 5
IC701
L181
C188
C114 C296
R731 R734 R732
C119
R733 D227
C292
L268
C717
MP21
1.2G C169
L183
C278
C300
VCC GND
MP22 C271
R267
C273
L305
C682
D302
C414
C416
D301
L306
VCC
D300
R305
C415
C417
GND
J603 J602
W153
C304
C309
EP154
EP153
C683
RL300
C686
R306
C314
C307
C308
C649
C653
Q650 C165 C163
C652
C675
C164 C162
VAR-C Q650
Q152
C91
J653 9
VAR-B Q152
Q151
C148
C158
W60
R150
W61
L152
C421
14
R952
C156 C155
1 C 0 4 1 C 1 4
W62
L950
W951
W63
C951
R950 C154
L952
C953
R954
C364 R361 C361
C335 R342 C332
R139
C180
R137 C208
C139
5 C207
C137 L321 R204
FI202
C371
R206
C338 FI201 FI200
C132 C206 C205 C373
6
R364 C179 1
EP952
4 3
C348 MP8
J931 J652 J651 J653
R365
3 1 V-C1 1 V-B1
V-A2
C218
GND GND GND
1 V-A1 3 V-C2 3 V-B2
to to to
VARISTOR-A VARISTOR-C VARISTOR-B
board board board
UHF ANT
J2
C293
W180
2
430ANT
MP30 C236
L182 L185
C406
C272
R264 C226
C267
D262
R230 C229 R221 C223
C277
C264 C263
R263
C258
C231 C221
C275
C222
L261
C274
D260 C232 C230 R220 C220
D261
C262
C269
C270 8 C328
W242B
MP17
C327 R222
L221 L223
C224
C288
R283 C225
R286
C38
C283
L283
Q282
L281
L281
C318
MP13 L283
Q281
L280
L282
L282
C284
L280
R285
R282 C285 C66
C280 R280
P551
430M 2Lo
U2Lo
L23
from PLL unit J551
J40
W64
R64
Q11
C64
R68 R65
R62
C40
L41
L40
R60
C61
R61
C161 C159 J30
P30
C160 C178
U SUB
to MAIN unit J652
USUB
D1
Q151
J1
D2
C27 P1
U MAIN
UMAIN to MAIN unit J52
C29
L1
C157 C149
R2
C6
C71
C73
L72
C76 C5
C4
L3 R3
L154 C24
C12 C15
C13 C16
L2
L4
R11
W5
Q201 C18 R8
C219 C19
Q3
C239 C20
P421
C244 L5
C22 C257 R248 430M 1Lo
R14
from PLL unit J421
R13
C326
C381
L10 L242
L382
W202 C383 R249 R250
MP10
C394
W242A
D242
3
C330
L192 W241A
C251
The combination of top side and bottom side of this