Icom IC-706MKIIG Service Manual page 75

• PA UNIT
PA
D101 L104
39nH
MA77
C115
7p
C113 D104
P101 J101
0.1 MA77
PAI
D102 R102
15
MA77
MAIN(1)
J231
MEASUREMENT CONDITIONS
SUPPLY VOLTAGE: 13.8 V
14.1 MHz USB
DIGITAL MULTIMETER : 50 k‰/V
L212
EXC-ELDR25C
D481
1SV237
C476 C462 C471
P481 J481
0.001 3p 0.5p
VURX
MAIN (1)
J141
COMPLETE VIEW
10 - 6
L105
R124
4.7uH
P2T8 560
L103 C121
R107 13.6 V
680 6.8nH 0.1
2.1 V Q121
MXR9745-RT1
Q101
C102 2SK2854
0.1
0.3 V
R106 R108
33
4.7k
R231
10k
D261
C261
STRIP
27p MI407
13.7 V
R261
47
C231
0.001 W235
Q231
SRFJ7044
C244 C245 C246
27p 18p 0.001
STRIP
UHF PREAMP ON:2.4 V
W300
6.2 V OFF:1.7 V
UHF PREAMP ON:0 V
W301
Q453
3SK291
1.4 V
Q452
0.3 V DTC114EU
R471
270k
J160
C141 L141 L142 L143
0.1 0.1uH 0.18uH 0.15uH
HFI
HFI
C161
C145 C147
GND
0.1
6p 3p
GND
J210
C153 C155 C213
15p 47p 0.001
VUI
VUI
C127
GND
0.1
GND
C129
0.1
R214 R213
2k 10
R161
100
UHF TX:0.2 V
C265 L262 L263 L264 L265
RX:0 V
0.001 LA-253 LA-263 LA-254 LA-243
D291 R269
UM9401F
1k
R267
C291
1k
30p
D262 D263
MA742 MA742
C292
12p
D292
UM9401F
D293
1SS355
C421 L407
0.001 W409 82nH
C455 L456
4.7nH
3p
W462
OFF:4.4 V
DRIVER
13.8 V
L171
LR-322B C172
J161
Q100 0.0068
HFO
MRF1508
HFO
GND
GND
R166
1
C169 470
HF TX MP1
4.2 V
J211
Q200
C167 0.1
VUO
MRF1508
VUO
C173
GND
0.068
GND
W213
V/U TX
4.6 V
13.8 V
D171
DAN202U
R174
10k
R163
1k R162
2k
VHF TX:0.8 V
RX:0 V
R301
L301 D311 D344
C311
10k
0.25-1.9-13TL
33p UM9401F MI407
C344
Q301
8p
DTC114EU
C312
C345
0.001
0.001
R312
D341
C341
100k
UM9401F
12p
R302 C329 D342
100 0.001
UM9401F
R352
100
D343
1SS355
L352
LW-25
C412 C408
5.6 V
0.001 0.001
Q403
VHF PREAMP ON:3.0 V
3SK291
OFF:2.1 V
C414
470p
Q402
1.8 V
0.8 V
R423 DTC114EU
220k
VHF PREAMP ON:0 V
OFF:4.4 V
R178 13.7 V
15
Q171
SRFJ7044
R182
0.68
R183
0.68
Q172
SRFJ7044
R179
15
R201
13.7 V
0.012
EP
D172
DAN202U R202 R205
3.3k 3.3k
R175
10k
L312 L314 L315 C326
L313 C327
LA-382 LA-383 LA-233 LA-382 9p
5p
Q351
L351
DTC114EU
0.25-1.9-13TL
R320
4.7k
L402 C405 L406
82nH 0.001 22nH
C407
470p