Pa Unit (2) - Icom IC-910H Service Manual

12-4 PA UNIT (2)

PA UNIT (2)
D117
MA4PH224
VPA
L117
RX :13.57 1812CS.122XKBC
L118
144M TX:0.3
440M TX:13.57 R117 1812CS.122XKBC
RX :13.57
100
R118
144M TX:12.9
10k
440M TX:13.57
C379 C117
144MHz TX:2.23
0.001 0.001
other :0 Q117
DTC114EU
VYGR
TX:4.83
D100
RX:0
MA77
TX:2.41
R107
RX:0
W263 680
W60
C106
C102
W61 R102 0.1
18 0.001
L102
W62
0.33µH
Q101
W63 D101
R104 2SK2854
MA77
R103
R100 68
330
330
C108
470p
R110
56 R105 R106
C104
W305
2.2k 4.7k
0.1
to 2
UX-910 1
440MHz TX:3.37
other :0
VCC
UVBB
UT9L
PAHV
RX :0
RX V MAIN:4.43 RX V MAIN:0 Q1
0 144M TX:0
RX other :0 RX other:0 2SK302
440M TX:0.47
144M TX :0 144M TX:0
440M TX :5.85 440M TX:6.64
L1
C5 C8
LS-164 33p
0.001
C3
D2 L11
J1 100p
P1 MA77
0.68µH C9
to MAIN UMAIN
0.001
unit J52
C28 C4
D1
56p 33p
MA77
RX U MAIN:5.21 C2
0.0047
RX other :0.13
C76
144M TX :0.13 C74
R28 56p 56p
440M TX :0.11 L71 0.1µH
L47 R1 100
J40
0.12µH
430M 2LO 1k
from PLL
C72
L72
unit J551
33p
0.22µH
RX U SUB:4.62
C52 C59
RX other :0 68p 68p
144M TX :4.62 RX :5.6
440M TX :0 144M TX:5.6 C75
440M TX:0.11 100p C73 C71
56p 56p
RX U SUB:5.4
RX other :0.18
144M TX :5.4
J30 440M TX :0 D31 C67
R30
P30 MA77 0.0047
1k
to MAIN USUB
unit J652
RX U MAIN:3.76 D41
MA77
RX other :0
R31
144M TX :0 EP32
1k
440M TX :3.72
Q30
RX U MAIN:4.43 C31
DTC144EU 0.0047
RX other :4.58
144M TX :4.58 D32 D30
Q33
440M TX :0 MA77 MA77
DTC144EU
C938
0.001
R32
C933 0.001
4.7k
C56 220p
Q32
DTC144EU
C55 220p
C941 0.001
EP31
C946 0.001
14V
L51
C35
J39
HF50ACC32213-B 0.001
16 14V
C939 0.001
15 14V
UTU1 EP55
14
5V EP54
13
12 UPRI EP50
11 UT9V
VUMS EP51
10
to MAIN
UR9V
unit J1351 9
8 UATT
EP53 EP52 EP56
7 VUT9 C57
POWS C37
6 220p
47p
FOR
5
C58
4 REF
220p
3 43PV
NC2
2
4 3
GND
1
5 2
6 1
C919
0.001
Q21
XP4312
C942
0.001
R64
R63
560 NTCCM16083NH
R65
390
5V
5V C64
5VL
R61 56p
5VL
RV-143 L22
VUMS5
VUMS5 LS-480
C929
R62
0.001
ICH
10k
ICH
ICL
ICL
HV
HV
D81 FOR C61
R66
DAN202U 0.0047
1.8k
R68
100
C63
R60 C62
VFOR UFOR 0.001
2.2k 0.0047
VFOR
C87
0.001
D82
REF
DAN202U UT9V
UATT
RX :1.74
VREF UREF C80 C81
VREF
144M TX:1.74 47p
0.001
C88
440M TX:0
0.001
UTU2
UTU2
BAND
BAND
PRV
PRV
VT9V
UTUNE1
VT9V
PA UNIT (1)
C89 C90 C136
470 470 0.001
C133
0.0047
TX:2.14
C90
RX:0 470p
TX:2.85
C110
RX:0
0.1 TX:2.14 Q930
13.0 2SK2975
RX:0
J931
C121 C120
L103 R124
0.001 0.001 1
6.8nH 560
2
3
C125 4
C375 C122
0.1
5p 10p
R111
R133
470 L123
Q121 DRV BOARD
R130 100
0.15µH TX:0.78
2SK2973
R121 1.2k
RX:0
56
R127
R108
10 R131
33 EVN-2ACA00B23
R126 R132
R122 R125
470 C130 470
2.2k 10
0.001
L122
R123
HF50ACC322513-B
C123 4.7k
0.1
C129
C126 C127 R134 R138
C128
0.1
470p 0.001 2.2k RV-109
0.001
RX :0
RX :0 RX :0 144M TX:0
C22
144M TX:0
144M TX:0 440M TX:6.49 22p
440M TX:8.8
C11 440M TX:3.1
33p
Q3
L2 C24 C15 C16 C17
R4
2SC2714
LS-145 10p 1p 1p 8p
1k
C18
R14
0.0047
C26 820
C13 R8
33p
R5 L4 2.2k R10
R6 15p
1k 0.22µH 220
100 L5
L3
R11
C12 0.1µH
0.22µH
Q2 2.2k
12p
2SK302
C25
R2
0.001 C19
560 C20
0.0047 0.001
R9
W5 220
W3 W7
C68
10p
RX :0
144M TX:0
440M TX:5.7 EP330
D40 C43 C14
MA77 22p
7p
L382
L381
0.1µH 0.15µH
R40 IC40
5 3 2 µPC2709T
3.3k C44 C53 R43 C384
2p 7p 10 5p
4 1
C382
L40 L41 C383
C50 12p
39nH 39nH
0.001 39p
6
C381
R42 R44
39p
470 470
C54
D42
27p
MA77 C41 4.76
7p
L192 R196
C47 1µH 1k
C51
0.0047
220p
C40 C42 L44
18p
R37 18p R38 2.2µH
47 680 C330 C195
C196
0.001 0.001 0.0047
C320
C49 R39 C48 12p
0.001 1k 0.0047
EP221
D241 MA77
C318 C923
C86
0.001
470p
C924 22p R249 R251
D240
C293 680 47
0.001 D242
R250 C394 MA77
0.001
1k 0.001
MA77
L280 L281 R240
FI280 3.3k
LS-539 LS-539
FL-131
C226
0.001
C282
C281
C39 C36
R280 8p 7p
47p
0.001 1.5k
Q281
R281
XP4312 C283
C280
1.5k
0.0047 0.0047
4 3 4 3
5 2 5 2
R285
D220
47k
6 1 6 1 C284
MA77
RX U SUB:8.85 22p
C220
C38 RX other :0
0.0047
0.001 Q282 RX :8.8
144M TX :0
XP4312 144M TX:8.8
D9 440M TX :0
440M TX:0 D221
MA77
Q11 L283
L23 L282 MA77
2SK508 FI281 LS-539
LS-477 LS-539
FL-130
W232 D10
MA77
C285
0.0047 RX
R67 C286 C287
144M TX:8.22
R284 C290
1.8k 8p 7p
0.01 440M TX:0.1
2.2k
R282
1.5k R283
1.5k
R286
C289
EP61
W64 47k C288
22p
0.0047
C82
RX U MAIN:8.85
0.001
RX other :0
144M TX :0
D80
DAN202U 440M TX :0
R80
C925
C930 4.7k
0.001
0.001
From The N3UJJ.COM Document Library From The N3UJJ.COM Document Library
C124
0.001
C147 C146 C145
39p 39p 7p
RX :0
144M TX:0
L131 440M TX:1.62
C134 C135 EXC-ELDR25C
470 470p
RX :0
C144
144M TX:0
0.0047
C151 C152 440M TX:0.06
L130 C150
13.8
0.001
LA-252 18p 18p
D952
MA4PH224
13.8
13.8
R90
200
D951
L132
C91
C142 MA4PH224
LA-549
470
47p
C92
C143
470
J932
0.001
C137
4 C140
0.001
39p R953
3 Q951 R954
2 XP4312 180
C141 10k
Q131
1 4 3
39p
SRFJ7044
C132
5 2
15p
C953
6 1
0.001
TX:2.79
RX:0
Q950
L950
W951 DTC114EU
0.25-1.9-13TL
C177 R137
5p 100
R950
RX :0 10k
R135 144M TX:9.1
EVN-2ACA00B14 R136 C131 C952
440M TX:0 C951
0.001
0.001 0.001
2.2k
R952
R951
100 C950
VCC 470
0.001
RX :13.7
144M TX:0.52
440M TX:13.6
UVBB
UT9L
PAHV
L97 15nH
C98 1p
R12 R101
5.6 330
C97 C99
10p 10p
R301
R13 3.3k
820
C300
R300 0.0047
C23 3.3k
33p
L10
0.22µH
W202 C419 C418
120p 120p
RX :0
144M TX:0
440M TX:2.33
FI200
FI201
LFSC25N LFSC25N
1 2 1 2
D190 D201 C338
C200
L190 L191
HSB88WS R201 1SV308 470p
0.001 3 4 3 4
617DB-1010 617DB-1010
18
R332
R331
2.2k
C331 2.2k
470p
C333 C339 0.001
0.001
C393
10p C392 C391 C340
10p 10p 0.001
R203
R200 C341
L391 R338
4.8 270 270 0.001 R336
22nH 2.2k R342
2.2k
39
L195 L196
Q201 D203 C332 D206
8.2nH 15nH R340 C335
XP4312 C219 1SV308 470p 1SV308
470p
0.001 150
4 3
R333 R199
C323 C324
2.2k R341 2.2k
12p 5p EP201
5 2 150
4.78
6 1
C321 C322
15p 10p C85
C239
0.001
0.001
EP245
EP242
W241
L242
W242
C576 1µH
C326
EP241 0.001
0.001
C325 C244 C251
0.001 0.001 0.001
L240 L241 L246
L244
18nH 18nH 15nH 10nH
C253 C243
C240
L225 0.5p 3p
0.001
RX :6.05
27nH
C327 C328 C252 R242
R222 144M TX:6.05
15p 6p 1.5p 820
560
440M TX:0.1
C254 C241 C242 C245
15p 22p 22p 12p
RX :0.76
C319
144M TX:0.76
7p
L221 440M TX:0
C227
1µH
C225 5p L224
22p
27nH
C232
Q220
L223 C230 7p
2SC3356
220p
0.1 H R230
R221
150
C223
100
0.001
C260
L222 C263
2p 0.75p
617DB-1010
R223 R226
10 R225 330
1k
C261
15p L260
C3328A-12NG
L220
R261
617PT-1026 R227
R224 RX :0.04 100k
330
10 144M TX:0.04
440M TX:0 D260
:8.22
1SV286
R260
C229 150
Q221 220p
2SC3356
C231
C228
R228 0.001
5p
C221 C222 10k
R269
0.0047 0.001 C262
1k
0.001
C407
EP220
0.001
L153
L152
EXC-ELDR25C LA-245
C165
C164
RX :0 27p
39p
144M TX:0
RX :0 RX
C166 440M TX:0.72
R152
144M TX:0 144M TX:0
47p
33
C162 C163 C173 440M TX:2.31 440M TX:0.73
4p
27p C174
39p
200p
D184 D182
Q152 XB15A407 XB15A407
2SC3102
C158
C156 C329
47p C148
2p
15p 47p
C153 D183 LA-252
27p XB15A407
C176
0.001 D185 C115
3p
XB15A407
C155
C154
15p
20p Q151
2SC3102
C175
200p
R154
C149
100
47p C161
C169
L151 27p
L154 0.001
EXC-ELDR25C LA-245
C157
R188
47p
C178 C159 C172 180
C168 39p 27p 4p
13.8
C171 47p
Q180
47 R189
XP4312
10k
RX :0 4 3
144M TX:0
440M TX:0.71 5 2
EP154
6 1
EP153
W153
13.7
RX :0
144M TX:13.15
C413
440M TX:0 C411
0.1
220p
C412
0.0047
C179
C311
0.001
0.0047
R304 13.8
C310
3.3k
C312 220p
0.1
C309 C304 C305
470 470
C301 0.0047
R303
0.0047
3.3k
C306
470p
R305
0.012
F301 F302
FI202
S-N5054 #01 C367 C368
F300 470p LFSC25N
C303 470p
1 2
FGB 4A
470p
C302
C414 C415 C416 C417 S-N5054 #01
0.001
120p 120p 47p 47p 3 4
IC200 D207
µ R358
R357
PC2710 1SV308 2.2k
2.2k
D202
1SV308 2 3 5 C180
C205 C206 L321
L201 R205 R208
0.001
0.001 0.001 12nH
LR-404 18 18
1 4
C371 1p
L203
6
82nH
R180
C199 C356 C357
C370 C372
2.2k
0.001 0.001 0.001
8p 8p
D209
D212
1SV308
1SV308
C361 R361
C207 C208 470p 18
C343 R344
0.001 0.001 470p
100k 3 4
C364
2 5 R359 470p
R351
270
2.2k
1 6
R345 R360
270
1k
Q202 C374
0.001
XP4312 C354
Q203 C351
0.001 0.001
DTC114EU
C345
0.001
EP342 EP341 W331 W332 W333
C248 C249 C347 C348
0.001
470p 47p 0.001
6 IC240
L247
µPC2710 L245 R247
27nH 18nH 33
4 1
R244 C246 C250
C399
5.6
0.001 5 3 2 0.001
5p R246 R248
C256
180 180
1.5p
C397 R245 C398
4p 820 5p
C255
C257
10p 10p
RX :8.58
144M TX:8.58
440M TX:0
L263
1µH
L262 C274 C275 C279
15nH 0.001 470p 470p
C264 C266 C267
R264
0.75p 0.75p 1.5p
18
Q260
3SK177 R267
C268 100k
C265
C258 12p
18p L261
1.5p RX :0.79
C3328A-12NG RX :1.89
144M TX:0.79
144M TX:1.89
440M TX:0
C276
C278 440M TX:0
0.001 470p
D262
R266
D261
1SV286
R265 27k
1SV286
R262 R263
47
R268
100k 100k C277
100k
470p
C404
0.001
C272
C271
470p
0.001
C269 C270
C405
0.001 0.001 0.001
EP401
W261 W262 C408
0.001
12 - 4
C192
R185
220p
:0 1k
C191
R184
68 10p
D181 CHASSIS J2
C194 L180 L181
HSU88 [UHF ANT]
0.001 LA-69 LA-69 W180
L184
C185
1p
C187 L182
2p D180 1812CS.122XKBC
C184
C188
HSU88
3p
3p L185
R186
HF50ACC322513-B
68
C189 C350
C186 EP406
10p 5p
7p
C190
R187 0.001
440MHz
1k
PRE ON(RX):12.55 C238
12.56
PRE ON(TX):0 220p
R171
PRE OFF :0
5.6k
C402
C182 Q182
220p L186
0.001 2SB1132
HF50ACC322513-B
C193
0.001
Q183 UFOR UREF
DTC114EU
EP193
UPRI
C181 R190
0.001 R182 R183
6.8k
68k
680
C202 C201
C235
220p 220p
0.001
C234
C233
470p
470p
PRV
C237 L194
440MHz
220p HF50ACC322513-B
PRE ON :11.8
PRE OFF:12.47 C204
VT9V
220p
EP181
UT9V
VUT9L
43PV
EP195
ICL
ICH
R306
1
HV
C346
0.001 14V
EP602
J602 W302
VCC
P300
J603
RL300
W303
ALD112
J601 W301
J600
W300
Q300
DTC114EU EP601
POWSL
D303
DAN202U
D208
1SV308
C308 D265
L301
0.001
LR-404 MA4PH224
C307 C210
C314
0.001 5p
Q200 0.001
2SC3357
D266
R364 C209 MA4PH224
C369 0.001
18
470p
C218
0.001 RX :0
R363
144M TX:0
270
R365
R362 440M TX:7.65
2.2k 270
R214
R215
10 RX :0
470
144M TX:0
440M TX:0.28
L267
LA-252
R212 R211
R354 L205
C298
2.2k 330 150
15nH
0.5p
R213
RX :0 1.8k
D227
144M TX:0 C212
MA4PH224
0.001
440M TX:1.05
C213 C214
C215 R27
C113
0.1 470p
0.001 47
30p
L269
L207
22nH
1µ
C217
C216
0.001
0.001
430M 1LO J240
from PLL
unit J421
BAND
C296 6p
D264
1SV237
C294
470p C295
0.001 440MHz
C403 ATT ON(RX):0.73
0.001
ATT ON(TX):0
ATT OFF :0
EP290
440MHz
ATT ON(RX):1.47
R270 ATT ON(TX):0.1
C259
470 ATT OFF :0
10p L268
C297
10.5nH
0.001
D263 C292
1SV286 0.001
RX :8.97 J50
L264
to MAIN
144M TX:8.97 1
5nH Q261
440M TX:0 2 unit J1853
2SC2712
J51 J1 SP1
C291
1 1 +
0.001
R271
2 2 -
D272 C299
47k
1SS355
0.001
440MHz
ATT ON(RX):3.26
ATT ON(TX):0.81
440MHz
ATT OFF :0
R273
ATT ON(RX):2.62
1k
ATT ON(TX):0.1
ATT OFF :0
MEASUREMENT CONDITIONS
VHF:144MHz,FM
UHF:440MHz,FM
C313
DIGITALMULTIMETER
0.001
Unit:Volt