Icom IC-M601, Service Manual

Page: 49 / 54

12 - 3
IC-M602 only
R8
TX: 0.0V
RX: 6.76V
1 R17
TX: 0.0V
RX: 6.77V
1 R336
EP2
R8
6.81V
R8
13.8V
T8
Lo: 0.0V
Hi: 4.75V
TMUTE
T8
2.84V
Lo: 2.56V
Hi: 3.32V
RX: 0.0V
TX: 7.37V
TX: 0.0V
RX: 4.76V
RX: 0.0V
TX: 7.37V
6.87V
T8
T8
T8
3.70V
R8
R8
3.71V
R8
VCC
100
R290
8V
R8
R8
R8
100
R338
0.001 C409
W11
W10 W8
W9
T8
TMUTE SEND
H/L TXDET ATT2 ATT1
J1
CHASSIS
470p C1
ANT
2.2k R6 2.2k R4
0.001 C14 0.001 C12
0.001 C13
22 R5
1SV307 D4
4.7
µ
L6
1SV307 D3
4.7
µ
L5
39 R3
0.001 C11
R2
C10
82k R1
5p C1
27p C3 18p C5
LA-243
L1
LA-243
L2
0.001
C6
LA-243
L3
XB15A308
D1
150p C9
LA-238 L4
27p C8 33p C7
DTC144TU
Q32
0.001 C428
22k R342
22k R341
0.001 C427 0.001 C370
HSM88ASR
D48
HSM88ASR
D47
150
R236
0.001 C365
LW-25
L90
XB15A308
D46
LA-243
L89
18p C364
0.001 C363
2.2k R278
0.001 C362
2.2k R277
18p C361
MA2S111 D52
1M R288
0.001 C377 0.001 C376
NJM2107F
IC14
+
-
2
4
1
3
5
DTC144EU
Q33
1.5k
R283
10k
R282
C371 0.001
C372 0.22
C373 0.1
C374 0.001
R284 47k
R285 3.3k
R287 470
R286 10k
C375 22p
D49 MA8051
C378 10
C379 0.001
CP8 CP9 CP10 CP11
C393 470p
C399 0.001
C398 470p
C397 0.001
C353 22
W7
0.001 C356
470p C355 47p C354
0.001 C352
10 C351
RA35H1516M
IC13
C343 0.001
C342 470p
C341 47p
R274 82
2SC3775
Q30
47n
L88
47n
L87
18p C348 39p C347 18p C346
3p
C338
22p
C345
82n L86
0.001 C339
22 R272 22 R271
0.001 C385
DTC144EU
Q36
2.2k
R297
2SA1577
Q35
10k R296
10 R262 1k R267
100 R268
1k R273
DTC144EU
Q29
C335 0.001 D44 1SS355 C333 0.001
C332 47p R265 100 R264 10k C325 18p C324 18p
2SC3775
Q28
18p
C334
0.001 C331
82n L85
10k R263
47n
L84
47p
C323
0.001 C330
2.2k R259
0.001 C322
390 R260
R257 1k
C320 0.001
R255 220
R254 2.2k
2SC5110
Q27
15p
C318
39
R258
MA77
D43
MA77 D42
100
R251
12p
C292
0.001 C319
0.1
µ
L83 3.3k R253
100 R252
100
R19
0.001 C35 0.001 C56
0.01 C57
68n
L52
82n
L51
0.001
C150
18
R105
30p C152 27p C151 270 R106 270 R104
2.2k R256
0.001 C317 0.001 C316
3SK294
Q7
3SK294
Q1
1p
C418
0.1 C404
0.001 C403
100 R337 470p C402 22k R332
R334 47k
R330 33k
MC138-E544ENAS-100014
L34
C406 0.1
C423 56p
MC138-E544ENAS-100014
L32
C420 12p
1.5p
C419
C421 3p
MC138-E544ENAS-100014
L33
0.75p
C415
R333 10k
0.75p
C414
220p
C401
1p
C411
R335 2.7k
1.5p
C410
3.5p C417
C407 5p
8p C416
100k R331
3.5p C413
C408 6p
8p C412
MC138-E544ENAS-100014
L31
C405 470p
C400 2p
617DB-1327=P3
L49
HSB88WS
D21
617DB-1327=P3
L48
22 R107
PMBFJ310
Q9
PMBFJ310
Q8
0.01 C155
C157 0.01
C158 0.001
R108 3.3k
C159 3p
C160 33p
1.2
µ
L56
4.7
µ
L55
10
µ
L50
TA31136FN
IC6
0.1 C182 I O
ALFYM450F=K
FI6
CR-744 (21.25 MHz)
X3
56p C183 10k R121
C184 47p R116 10
4p C164
3.3
µ
L57
C165 5p
FL-298
FI4
FL-298
FI5
C161 0.01
1.2k R120
0.001 C199
3.3k R124
330 R123
CP3
100k R122
0.1 C167
2SC4215
Q10
0.01 C166
0.001 C179
C178 0.01
C177 1
1.2k
R112
100p
C170
MA8036 D22
C175 10
390
R113
CDBC450CX24
X2
C176 0.01
470
R111
0.001 C168
0.001 C169
MIXIN
GND
N-REC N-DET
RSSI
IFOUT QUAD
FILIN FILOUT
AFOUT
OSCIN OSCOUT MIXOUT VCC DEC IFIN
J3
CP23 CP22
MC120-E526HNA-100312
L11
0.001 C21
33p C23 18p C24 3p C25
0.1 C29
0.001 C28
100 R18
470p C27
22k R13
100k R12
220p
C26
C30 470p
R15 47k
R11 33k C32 0.1 R14 10k
R16 1k C33 5p C34 5p
MC120-E526HNA-100312
L12
3.5p C37
8p C38
3.5p C41
8p C42
2.5p
C48
2p
C36
1.5p
C39
2p
C40
1p
C43
MC120-E526HNA-100312
L13
MC120-E526HNA-100312
L14
MC120-E526HNA-100312
L15
C47 56p
C44 3p
C45 12p
R31 1.2k
2SC5110
Q23
0.001 C309
220 R245 2.2k R244
0.001 C307
0.1
µ
L81 3.3k R243
100
R241
100
R242
10
R33
0.001
C52
82n
L21
10p C308
68n L22 27p C54 27p C53 470 R34 470 R32
617DB-1327=P3
L18
C49 2p
HSB88WS
D11
617DB-1327=P3
L19
10
µ
L20
22 R37
MA742
D15
2SC4215
Q2
680 R95
C96 0.001
C67 5p C64 6p
FL-285
FI1B
FL-285
FI1A
10
R39
PMBFJ310
Q4
PMBFJ310
Q3
C55 0.01 C59 0.01
C60 0.001
R38 3.3k
C61 33p
C62 1.5p
0.75
µ
L26
4.7
µ
L25
0.01 C63
0.001 C90
0.01 C91
0.01 C92
100k R96 330 R97
3.3k R98
CP7
0.1 C69
0.01 C68
MIXIN
GND
N-REC N-DET
RSSI
IFOUT QUAD
AFOUT
OSCIN OSCOUT MIXOUT VCC IFIN DEC FILOUT FILIN
TA31136FN
IC1
W6
O I
ALFYM450F=K
FI3
W5
0.1
C84
10
R53
0.1
C86
0.1 C83
330k R48
180p
C87
180p
C88
27k R50
820
R51
33k
R49
2.2k R47
0.001 C81
C80 0.01
C79 1
MA8036 D12 C77 10
C78 0.01
1.2k
R41
100p
C72
390
R43
0.001 C70
470
R40
0.001 C71
M
L
K
J
I
H
G
F
E
D
C
B
A
OUT VCC2 VCC1 IN
6 5
1 2 3 4
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
CDBC450CX24
X1
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9