![background image](http://html.mh-extra.com/html/icom/ic-706mkiig/ic-706mkiig_service-manual_612196075.webp)
D101
MA77
L104
39nH
L105
4.7uH
C115
7p
C1
14
39p
C1
16
39p
D102
MA77
R102
15
D104
MA77
D103
MA77
C1
17
0.1
R1
13
330
C102
0.1
C101
3p
R1
14
330
R104
68
L106
100uH
C104
0.1
R105
4.7k
C1
18
0.1
C113
0.1
C106
0.1
R107
680
Q101
2SK2854
R106
4.7k
L102
33uH
R
111
470
C109
0.1
C103
470
R108
33
C
111
0.1
L103
6.8nH
C121
0.1
R123
4.7k
C123
0.1
R122
2.2k
R121
56
R124
560
C125
0.1
Q121
MXR9745-RT1
R125
5.6k
C126
470p
C128
0.1
R127
10
L121
6.8uH
L123
100uH
R126
470
L122
HF50ACC322513-T
C129
0.1
C127
0.1
C141
0.1
L141
0.1uH
L142
0.18uH
L143
0.15uH
C145
6p
C147
3p
C144
68p
C146
68p
C148
39p
C161
0.1
C168
0.1
R165
180
R166
1
Q100
MRF1508
C169
200p
MP1
W213
Q200
MRF1508
J160
J161
C151
27p
C153
15p
C155
47p
C156
4p
C152
390p
C154
120p
L152
47nH
L153
56nH
C212
9p
C213
0.001
C214
0.001
L171
LR-322B
C204
200p
C203
200p
C172
0.0068
C173
0.068
C174 0.1
R174
10k
C176 0.1
D171
DAN202U
R172
22
C169 470
C167 0.1
L161
EXC-ELDR25C
L162
LR-270
C207
1000
C165
0.1
C175 0.1
R175
10k
D172
DAN202U
R173
22
R176
2.2k
R177
2.2k
R182
0.68
R183
0.68
Q171
SRFJ7044
Q172
SRFJ7044
C191
200p
C183
200p
C178
0.0068
C179
0.0068
R178
15
R179
15
R161
100
C163
0.1
R164
2.2k
R163
1k
R162
2k
R21
1
470
R215
1.5k
R213
10
R214
2k
C250
0.001
R234
820
R235
820
L21
1
EXC-ELDR25C
L212
EXC-ELDR25C
C216
100
C217
0.0047
C218
47p
C219
0.0047
C231
0.001
W235
C220
22p
C233
2.2k
C235
33p
C236
33p
Q231
SRFJ7044
C241
39p
C244
27p
C245
18p
C246
0.001
STRIP
C240
39p
STRIP
C242
47p
C243
47p
C237
47p
C238
0.0047
L232
LA-549
R261
47
R262
100k
C278
0.001
C262
0.001
C261
27p
L261
L
W
-25
D261
MI407
C264
39p
C317
0.001
R319 8.2k
C321
0.001
D313
MA2S728
D312
MA2S728
L312
LA-382
C274
39p
C275
33p
L263
LA-263
C276
22p
L264
LA-254
L265
LA-243
L301
0.25-1.9-13TL
C303
0.001
C302
0.001
Q301
DTC114EU
R303
470
R302
100
D301
UM9401F
C301
0.001
R301
10k
C311
33p
L31
1
L
W
-25
C331 5p
C312
0.001
R312
100k
C329
0.001
R31
1
47
D344
MI407
D311
UM9401F
C265
0.001
L291
LA-234
D291
UM9401F
C291
30p
L292
LA-234
C292
12p
D292
UM9401F
D293
1SS355
C268
0.001
R267
1k
R266
12k
R263
2.2k
C272
0.001
R269
1k
R268
10k
R264
2.2k
D263
MA742
D262
MA742
L262
LA-253
L341
LA-232
D341
UM9401F
C345
0.001
C341
12p
D342
UM9401F
D343
1SS355
C322
7p
C323
7p
C324
10p
L313
LA-383
L314
LA-233
L315
LA-382
C326
9p
C327
5p
L316
LA-382
L317
LA-232
C279
0.001
C281
0.001
L351
0.25-1.9-13TL
Q351
DTC114EU
C354
0.001
C353
0.001
R351
10k
C280
470p
R232
2.2k
C233
0.001
R231
10k
C232
0.0047
C247
470p
W409
C421
0.001
R422
330
C422
0.001
L408
27nH
D410 MA2SV05
D406
MA2SV05
L407
82nH
R419 100k
D407 MA357
R420 100k
C414
470p
D405
1SV308
R418
1k
C412
0.001
L403
2.7uH
R424
680
C41
1
0.001
R416
120
Q403
3SK291
R415 120
C410 0.001
C409 0.1
R414 330k
C413 220k
R423
220k
C425 0.001
Q402
DTC114EU
R412 180k
R41
1 330k
C408
0.001
D408 MA357
R421 100k
R410
1k
L404
10uH
C407
470p
D404
1SV308
D403
MA2SV05
D409 MA2SV05
R409 100k
L402
82nH
C405
0.001
L406
22nH
L401
33nH
R408
33
R407
4.7
D402
1SV308
D401
1SV308
R403
1.8k
C401
0.0047
C476
0.001
C462
3p
C471
0.5p
D456
1SV305
C472 15p
R470 100k
L461 12nH
L455 15nH
R455 1.5k
R465 12
C478 0.1
C461 0.001
C460 10p
R464 100k
D454 1SV305
R463 39
C453 0.001
C477 0.1
C681 0.1
C459 0.001
C458 0.001
C463 0.1
C469 0.1
Q453
3SK291
R462 330k
R461 330k
R471
270k
Q452
DTC114EU
W462
L456
4.7nH
C452
8p
C457
0.001
R469
390k
R460
150k
R459
100k
D453
1SV305
L453
12nH
R453
4.7
R452
4.7
R451
1.8k
D451
1SV308
D452
1SV308
C454
0.001
D455
1SV305
C418
0.001
C423
0.001
L410
10uH
C427
0.001
C402
0.001
L172
LR-83
C185
390p
R201
0.012
R202
3.3k
C201
0.1
R203
3.3k
R204
3.3k
C202
0.1
R205
3.3k
EP
C470 0.001
R468
330
D481
1SV237
R1
12
330
HFI
HFI
GND
GND
GND
VUI
VUI
GND
J210
J211
HFO
HFO
GND
GND
VUO
VUO
GND
GND
DRIVER
J481
R320
4.7k
P101
J101
P481
P2T8
VURX
W301
W300
C455
3p
R352
100
L352
LW-25
L342
LA-232
C344
8p
C193
470p
W171
PA
R1
15
1k
R313
1k
R314
1k
W316
W320
C318
1p
C319
1p
C314 12p
C313 15p
R317 8.2k
C332 10p
• PA UNIT
10 - 6
MAIN(1)
J231
MAIN (1)
J141
MEASUREMENT CONDITIONS
SUPPLY VOLTAGE: 13.8 V
14.1 MHz USB
DIGITAL MULTIMETER : 50 k‰/V
13.6 V
0.3 V
2.1 V
13.7 V
UHF TX:0.2 V
RX:0 V
0.3 V
6.2 V
1.4 V
UHF PREAMP ON:2.4 V
OFF:1.7 V
UHF PREAMP ON:0 V
OFF:4.4 V
13.8 V
HF TX
4.2 V
V/U TX
4.6 V
13.8 V
13.7 V
13.7 V
0.8 V
5.6 V
VHF PREAMP ON:3.0 V
OFF:2.1 V
VHF PREAMP ON:0 V
OFF:4.4 V
1.8 V
VHF TX:0.8 V
RX:0 V
PAI
COMPLETE VIEW
Summary of Contents for IC-706MKIIG
Page 1: ...SERVICE MANUAL HF VHF UHF ALL MODE TRANSCEIVER i706MK G ...
Page 58: ... HPF BOARD BOTTOM VIEW DRIVER BOARD BOTTOM VIEW 8 6 ...
Page 60: ... PA UNIT BOTTOM VIEW 8 8 ...
Page 62: ...1 8 16 9 PLL UNIT BOTTOM VIEW 8 10 ...
Page 64: ... FILTER BOARD BOTTOM VIEW 8 12 ...
Page 85: ...6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan A 5564HI S C 1999 by Icom Inc ...