Icom IC-80AD Service Manual page 50

RF UNIT (2/2)
A
B
TTEM P
VCC- I
C
UPC2709TB
3 4
100P GND OUT
2 5
D100
C129 GND GND
LOOUT 1 6
IN VCC
1SV308
IC100
C135
R118
1P MMZ1005Y102CT
100
R119 EP103
2.2K
C133
0.001
Tx:5.02V
C156
Rx:0V
0.001
T5
C:3.30V
MMZ1005Y102C T
EP152
+3V
C148
0.01
BH2220FV M
GND VCC
DATA 5 4 ISET1
DI AO3
CK 6 3 ISET2
CLK AO2
D ASTB2 7 2 PSET
LD AO1
8 1
I C152
C146
C:5.55V
0.01
TUNE1
TUNE2
100K
I C952
R950
+5.5V 8 1
R953 7 2
100K 6 3
5 4
R951
150K
LM2904PWR R952
150
150
0.001 150K
D
UHFC
VHFC
E
Tx:0.18V Q451
Rx:3.09V 1 5
2
R3V
3 4
C469 XP1115
C470
47P C467 C471
47P
47P 47P
Q251
50MC 1 5
2
BCC 3 4
XP1115
C264
C262
0.001
0.001
Q252
SHIFTC
C261
UNR9115G0
47P
AGC
TUNE2
TUNE1
F
G
ATT
H
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0.001
56
C145
R113 MMZ1608Y102B T
EP105
R114 0.001
0.001 LQW18AN68NG00D
C117
56 C122
C123 L109
0.1
R108
Tx:4.96V Tx:4.00V
8.2K
Rx:0V Rx:0V
C121
C125 R120 JDP2S04E JDP2S04E C124 0.001
C138
Q 102
3.3K
100P 0 0.001 D101 D 102 0.001
R109 2SC3356
R111
L111
1k
0.1U R115
R106
R116 1k
1k
C126
0.001
R154 R152
R163
2.2K
2.2K C160 C159
0.1 0.01
R153
Tx:5.03V
EP150
1M
C132
C161
0.001
R155
R156 I C150
0.01
330K 1
R149
2
3
1M
I C151
4
5
3
R146
4 LM2904PWR
1 C152
22K R159
R158
22K
2 33K
TC75S51FU
Tx:4.98V
C147 MA2S7280G
D404
0.01
R420
VHF
10
C425
Rx:2.98V
R423 0.001
0.001
820
D 405
C423 C420
1SV308 6P 0.5P
L404 D403 H VC376B
PSET
HVC376B
LQW18AN68NG00D D 402
ISET2
C421
33P
R421
C422
47K 47K
100P
R422
C424
0.001
D256
C260
22P
1SV308
D255
R258
1SV325
2.2K
R257
47K
C256 C259
C263
0.1 0.001
47P
R259
10K
(BATT)
7.4 V
Tx-H:7.12V
Tx-M:7.23V
Tx-L:7.32V
Tx-sL:7.34V
R161
N TCG10
EP100 C109 C131
C111 C181
M PZ1608S101A 1
0.001
0.001 0.001 L104
20.0N
0.1
R103
C102
C136 C142 C101
100
0.1
C143 L107
11P 9P
6.8N
0.1 C103
2SK3475 15P
C114
L108 Q101 82P Q100 C104 L101
C137
2SK3476 39P 2.5N
0.001 L106
15N L105
C144 MP100
R104
10P 6.8N 1.8N
39
C112
2888 C44
56P
0.001
R100
390
22
R105
47K R101
15K
C166 C128 C127
R4
10 0.001 0.1 R102 C119
Q2 1k
0.001
1 5
3.3K 100
C157
MMZ1005Y102C T
C158
0.001 2
T5
10
100
EP102
3 4
MMZ1005Y102C T
10K
XP1114
R151 R150
R6
1k
560K UNR9211G0
8
Q3
7 VHF
C150
6 Tx:0V
0.01
5 Rx:3.05V
C27 L103
R157
10.3N
0.1
15K
C151 0.001
0.01
Q4
PSET
C36
UNR9211G0
R160
15K
0.001
UHF
Tx:0V
Rx:3.06V
VHF
Rx:2.89V
LQW18AN82NG00D
C418 L403 R414
R417
L401
1k
39K
C412 0.22U
C417
R415
1
4.7K
0.001
C411 LQW18AN82NG00D C408 R409 C407
R419 Q401
100K 2SC5006 L402
5P 1.5P 220
8P
HVC376B
0.001 VHF
D401
Rx:0.86V VHF
C419 R411
Rx:0.44V
C415
100P
C414
R418
47K
C409
220
0.01
100P C410
0.001
2SC5006
C257 Q 250
50MHz
C253
L253 10P
Rx:3.03V
0.15U
L252 50MHz
15P
Rx:1.31V
1U D252
MA2S077G0
R256 R253
1SV325
22K
10K D254
0.01 R252
R254 D 253
C258 C255 C254
R255
47K
0.01
330
L254
0.01 10K
MA2S1110G C252
0.15U
0.001
15MHz
C211
R201
Rx:3.06V L204
0.1
100U
47K MA2S7280G
D203
10K
1SV308
Q200
2SC4215
C212
R203
0.1
680
L53
18N L52
C63
18N
D56
R162 8P
D58 C65
1SV308
22K
1SV308 4P
D54
C100 L50
100P
1SV307 16.0N 1SV307
C59 D52 C50
L100 1SV271
1P 1P
16.0N C54
C52
MA74 2
7P
8P
D11 D50
L12 220P
D53
1SV271
0.82U C58
MA74 2
R52
390
UNR9211G0
Q50 R15
0.001
C172
C57 150
R3 0.001 C55
R53 R50
100 C56 220P
47K
47K
0.001
C26
0.001
R59 R58 R51
47K
47K 4.7K
C71 C70
100
0.001 0.001
D59
D60
R5
C34 VHF MA742
MA742
Tx:4.40V
0.001
C45
L14
0.001
0.82U
C69 C66
1SV308
1P 1P
D61 L55
C108 C72 C43
0.001 0.1 45.3N
0.1
C106 D62 C68 C67
75P 15P 12P
1SV308 LQW18AN56NG00
L15
C37
C38
22P D9
18P
1SV308
C41
1
C402
1
R401
R405
R400
180K
R403
1k 3.3K
47K
LQW18ANR15G00D
C400 L405 C427 C426 D400
3SK318
Q400 220P 0.001 0.001 1SV308
C401
3.5P
0.001
0.001 R404
C405 C403
L400
0.12 U
R402
220K
R406 220K
100
C404
0.01
MA2S077G0
D 250 L201 L200 D 200
C250
22P 0.12 U 0.1U
1SV308
0.12U C203 C201
L250
6P 12P
MA2S077G0
C202
R251 D251 C204
L251
56P
R250
33P
2.2K
4.7K 0.18U
C251
0.01
D202
R200
2.2K
R202
D201
C210 L203 L202
0.33 U 0.33U
1 M A2S077G0
C208 C206
8P 22P C205
C209
C207 56P
100P
180P
10 - 6
J1(CHASSIS)
1
C62
5P C47
R14
0.001
150
C7 L1
D55 C9 L3 L2
13.6N 13.6N
18P 9.1N
22P
C5 C3 C1
L10
C8
0.82U
24P
1.5P 2P 4P
C2
C4
R10
L4 6P 4P
82K
47N
C46
0.01 C6
1P
D51
C51
1SV271
0.001
R1
MP201
150 OG-503040
C23
0.01
L7 L6 L5
54N 57.2N 45.5N
C10
C14 C12
5P
1.5P 1.5P
C13
C11
22P 33P
R9
3.3K
C49
0.001
R41
2.2K
C:COMMON
Tx-H:TX HIGH POWER
Tx-M: TX MIDDLE POWER
Tx-L: TX LOW POWER
Tx-sL: TX sLOW POWER
*; Refer to "PARTS LIST."