Main Unit - Icom IC-M601 Service Manual

12-2 MAIN UNIT

MAIN UNIT
1.2V at -8dBu
J1
TEMP R306 1
NWC R307 1
SQL R308 1
WXDET R309 1
DEC1 R310 1
RXADJ R311 1
DEC2 R312 1
GND
5V R313 1
8V R314 1
GND
PCK R315 1
to LOGIC PDATA R316 1
board J1 PSTB
UNLK
ATT1 R317 2.2k
ATT2 R318 2.2k
H/L R319 2.2k
TMUTE R320 2.2k
GND
DASTB R321 1k
GND
SEND R322 1k
TXDET R323 1
GND
CP16
J2
GND
DET R324 1
NWC
MOD R325 1
HLVL R329 1
to AF
PDATA
unit J2
PCK
R8 W2
5V W3
8V W4
8V
R66 R64 5
1k 1k 1
4
3
2
IC2
NJM2125F
L91
220µ
IC3
NJM2902V
3
1
+
2
-
IC-M601 [HOL], [FRG] only
IC3
C109 C108 C107
NJM2902V
0.01 0.01 0.01
5
7 +
6
-
IC-M601 [HOL], [FRG] only
C111 0.047
IC9
NJM2211M
C208 0.033
1 14
V+ CAP
R160
2 13
15k
IN CAP
3 12
LOCK R
4 11
GND LOOP
5 10
Q REF
6 9
Q NC
7 8
DATA FSK
R158
C206
100k
0.01
R157
4
330
IC3
V+
NJM2902V
GND IC11
11 TC4W53F
DET 1 8 5V
2 7
3 6
4 5
C431
0.001
R163
100k
RXADJ
DEC2
DEC1
5V
MOD
R8 R8
IC3
NJM2902V
C197 C196 C195
0.01 0.01 0.01 12
10 14
+
8 + 13
9 -
-
IC3
NJM2902V
R188 330
Q12
PMBFJ310
L61 D33
3.9µ HVC358B
C235
3p
L62
LB-258
R8
8V
R61
10k
LOCK : 0.0V
UNLOCK: 4.83V
3.72V
R299
C102
R76 R75 1k
0.1
10k 10k
PSTB
PCK
R74
PDATA
10k
UNLK
IC4
C118
NJM2211M
0.033
1 14
V+ CAP
R90
2 13
15k
IN CAP CP2
3 12
LOCK R
4 11
GND LOOP
5 10
Q REF
6 9
Q NC
7 8
DATA FSK
R88
C116
100k
0.01
C89 R59
IC5
0.1 1k
R86
BU4584BFV
47
1 14 5V
HLVL
2 13
R87
330
3 12 DASTB
PCK
PDATA
4 11
5 10
6 9
7 8
5V
R8
R142
100k
3.72V
R146 R145 R144
10k 10k 10k
Q11
2SC4116
R220
33
C237
12p
Q13
2SC4215
C254
R204
0.001
68
IC12
µPD3140GS
1 20
VCC1 GND1
2 19
IN1 IN2
3 18
ENB VCC2
4 17
CLK XB
5 16
DATA XI
6 15
T1 XO
7 14
R209
LOK GND2
8 13
100
CP1 CP2
9 12
FI1 FI2
10 11
FO1 FO2
X4
CR-664A (15.300 MHz)
R221
1.2k
R213
1k
2.70V
C264
5p
Q16
2SC4116
IC15
R291
M62363FP-650C
470
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
VOUT2 VOUT7
R292 470 4 21
VIN2 VIN7
5 20
VDD GND
6 19
LD RESET
R195
7 18
68
CLK VDAREF
8 17
DI DO
9 16
VIN3 VIN6
10 15
VOUT3 VOUT6
11 14
VOUT4 VOUT5
12 13
VIN4 VIN5
C277 R227 R228 R232
1 47k 33k 680
Q18
PMBFJ310
L72 D40
3.3µ 1SV214
C290
0.5p
L73
LB-258
R238 L79
1k 2.2µ
Q21
DTA144EU
12 - 2
A
R8
B
8V
C
D
R201
680
L70
56n
C253
20p
C251 5p
Q15
2SC4215
C257 R208 R207
68p 47k 470k
E
C267 C269
3p 10p
F
G
H
R192
680
L66
56n
C242
20p
Q14
2SC4215
R8
8V
Q17
2SC4116 8V
I
J
Q19
2SC4215
8V
R8
Q22
DTC144EU
K
L
M