Main Unit - Icom IC-M604 Service Manual

12-2 MAIN UNIT

1.25V at –8dB
R313
1 S5V
SQL
CP12
CP10S
CP4
CP10S
R309
1
WXDEC
IC3
NJM2902V
7
R306
1
R308
1
SQL
J1
TO LOGIC UNIT J1
26FLT-SM2-TB
GND TEMP
2 1
WXDEC SQL
4 3
RXADJ DEC1 1
6 5
GND DEC2 2
8 7
8V S5V 3
10 9
GND
PCK 4
12 11
PSTB PDATA
5
14 13
ATT1 UNLK 6
16 15
H/L ATT2 7
18 17
GND TMUTE
20 19 DASTB
GND
22 21
TXDET SEND
24 23
GND GND
26 25
R312
CP16
CP10S R310 1
1
CP13 R311
CP10S 1
CP14
CP10S
CP17 CP19
CP10S
CP10S
CP18
PSTB
CP10S
R315 1
PCK
CP15
CP10S
R317 2.2K
ATT1
R319 2.2K
H/L
IC3
R322 NJM2902V C197
TXDET
1K 0.01
R323 1
10
R321
8
1K
9
R320 2.2K
SEND
R318 2.2K
DASTB
TMUTE
R316 1
ATT2
UNLK
PDATA
PCK
L61 D33
3.9H HVC358B
R329 R324
1
1
HLVL
L62
LB-258
J2
R325
GND 1
10
DET
9
GND
8
MOD
7
HLVL
TO AF
6
PDATA
J2 R326
5
PCK 0
4
R8
3
S5V
2
8V
1
S5V
R327
CP20 0 C254
CP10S 0.001
CP21
CP10S
R328
0
IC12
µPD3140GS
R299 1 20
VCC1 GND1
1K 2 19
IN1 IN2
PSTB 3 18
ENB VCC2
4 17
PCK
CLK XB
PDATA 5 16
DATA XI
UNLK 6 15
T1 XO
7 14
LOK GND2
LOCK: 0V 8 13
CP1 CP2
9 12
UNLOCK: 4.83V FI1 FI2
10 11
FO1 FO2
RXLV
CP1
to AF
CP10S 1K
CP8
UNIT J5
CP06S
R213
VCC VCC
13.72V
1
CP9
CP06S
VCC VCC
2
CP10
GND CP06S
GND
3
CP11
CP06S
4 GND GND
TXLV
CP2
CP10S
R220 L72 D40
1SV214
33 3.3H
L73
LB-258
8V
IC2
R61
NJM2125F
R66 R64 10K
5 1
1K 1K
4
3
2
R63
10K
4
IC3
V+
NJM2902V
GND
11
R76 R75 R74
C109 C108 C107 C102
10K 10K 10K 0.1
5 0.01 0.01 0.01 3
1
6 2
IC3
3.74V
NJM2902V
IC4 NJM2211M
C111 C118
0.033
0.047
1 14
R90
V+ CAP
2 13
15K
IN CAP
3 12
IC9 4 LOCK R
11
GND LOOP
5
NJM2211M 10
C208 Q REF
6 9
C117
0.033 Q NC
14 7 8
R160 0.1
V+ CAP R85 DATA FSK
13
15K
IN CAP
12
LOCK R
47K R88
11
GND LOOP 100K
10
Q REF R155 C116
9
C207 0.01
Q NC
8
0.1 IC5 BU4584BFV
DATA FSK 47K
1 14
R158 R87
R157 330
100K 2 13
330
3 12
C206
4 11
0.01
5 10
6 9
7 8
DSC2
DEC1
S5V
IC11
TC4W53F
RXADJ
1 8
2 7
3 6
4 5
8V
DET
R8
R111
470
IC3
NJM2902V C190
R146 R145 R144
C196 C195 12 10K 10K 10K 0.1
0.01 0.01 14
13 X2
CDBC450CX24
3.74V
C170
100P
Q11
R113
390 R112
2SC4116
1.2K
3.70V
Q12
PMBFJ310
C237
C235
12P
3P
Q13
2SC4215
R192
680
L66
R195 C242
56nH
68 20P
C241
5P
Q14
2SC4215
R8
S5V
8V
MOD
R241
R201
680 47
L70
R204
56nH
68
C253 C251
20P 5P
IC15
M62363FP
Q15
2SC4215 1
VIN1
DAFREQ 2
VOUT1
DAHLVL 3
VOUT2
4
VIN2
5
R209 X4 R208 R207
C257 VDD
CR-827 DASTB 6
330 68P 47K 470K
LD
PCK 7
CLK
8
PDATA
DI
9
VIN3
10
VOUT3
DADEV 11
VOUT4
12
VIN4
R221
2.64V
1.2K
C267
C269
3P
10P
C264
5P
Q16
2SC4116
R252
Q17 2SC4116
100
8V
C277 R227 R228
33K
1 47K
R232
680
5.80V
C292
R251
Q18 12P 100
PMBFJ310
C290
0.5P
Q19
2SC4215
8V
Q22
L79
DTC144EU
2.2H
R8
Q21
DTA144EU
CP7
CP10S RSSI
C68
0.01
R40
470
C96
Q2
0.001
2SC4215
X1
CDBC450CX24
C72 R95
82P 680
R43
FI1B
FI1A
390 FL-404
FL-404
R41
1K
3.67V
IC1
TA31136FNG
R47
2.2K
FI3
CFWM450E
I O
C89 R59
R48
0.1 1K
470K
EP2
BLM11B221SB
DASQL
CP3
CP10S
RSSI70
L55 33P 3P
4.7U
FI5 FI4
FL-399 FL-368
C166 L57
0.01
3.3U
IC6
TA31136FNG
R256
2.2K
R116 C184
10 12P
Q10
2 1 2SC4215
5 4 3
FI6
ALFYM450F=K
8V
R8
C308
10P
Q23
2SC5110 5.01V Q35
2SA1577
T8
8V
Explanatory notes
DASQL
Q36
DTC144EU
R297
24
2.2K
VIN8
23
VOUT8
22
VOUT7
21
VIN7
20
GND
19
RESET
18
VDAREF
17
DO
16
VIN6
15
VOUT6
14
VOUT5
13
VIN5
DAPCON
T8
C345
22P
R268
82
C338
3P
C334
20P
D43 R258
C318
Q30
MA77 39 C323 L84 TX: 7.25V
15P
2SC3775
47P 47nH
Q28 RX: 0V
2SC3775
Q27
2SC5110
HI: 3.25V
LOW: 2.74V
MAIN UNIT
L25
4.7H
R8
Q3
D11
PMBFJ310 L19 L18
HSB88WS
#617DB #617DB
C43
1P
R39
10
Q4
PMBFJ310
L15 L14
L22 L21 C52 R33 #E526HNA #E526HNA
68nH 82nH 0.001 10
R8
C419 C418 C415
1.5P 1P 0.75P
D21
L49
HSB88WS L48
#617DB
#617DB
Q8
PMBFJ310
C155
0.01
Q9 L34 L33 L32
PMBFJ310 #E544ENAS #E544ENAS #E544ENAS
R105
L52 L51 C150
68nH 82nH 0.001 18
R7 R9
0 0
R8 R10 2577 2577
0
0 MP1 MP2
VOLTAGE LINE
TX LINE
RX LINE
COMMON LINE
R236
L90
150 LW-25
T8
IC13
RA35H1516M
L89
TX: 7.29V LA-243
RX: 0V
L87 L88
47nH 47nH
VCC
R287
W7 470
MJP-0.2
C375 R285
3.3K
22P
R282
8.2K
R286
10K
Q37 Q33
5 3
DTC144TU
DTC144EU
4
1
R290
100
2 R288
IC14
1M
NJM2107F
DAPCON
HI: 4.75V
TX: 0V
LOW: 0V
RX: 4.76V
TX: 2.85V
RX: 2.76V
12 - 2
R19
100
L12
#E526HNA
C40 C39 C36 C48
1.5P 2.5P
2P 2P
RX: 6.77V
TX: 0V
C21
C26
220P 0.001
Q1
3SK294
L13
L11
#E526HNA
#E526HNA
CP22
CP10S
J3
R31
TMP-J01X-V6
1.2K
CP23
CP10S
R338
100
L31
#E544ENAS
C414 C411 C410
0.75P 1P 1.5P
RX: 6.77V
TX: 0V C401
220P
Q7
3SK294
2577 2577 2577 CASE-BM7H
MP3 MP4 MP5 EP3
ANT
L2 L1
C6 CP6
CP10S
0.001 LA-243 LA-243
D46 L3 D1
L308CCB L308CCB
LA-243
L5
L6
4.7H 4.7H
T8
Q32
DTC144TU