Icom IC-M35 Service Manual page 10

Feb. 2012
SECTION 10. SECTION 10 VOLTAGE DIAGRAM
R251
270
EXPTT
ON :4.81V
OFF:0.00V
Q251
EXPTT
KRA302E
PTTIN KRC404E
ON :4.82V
OFF:0.00V
Q250 Q362
PTTIN
KRA302E
R270
10K
MC250
EM6027P
C253
PTTSW
0.047
22K
2
1 R434
J253
C383
1
BM02B-ASRS-TF
MICMS
DETMS
PTTM
R438
100K
LM2904PWR
2
C428
1
3
W1 0.018
IC363
ERDS2T0
W2
ERDS2T0
HSJ1594-010150
CLONE
SPO
MMZ1608Y102B T
AFOUT
MIC
EP5
GNDE
J250
R346
KEY
KEY
100K
S320 S323
S326
16/9 SCAN H/L
KEY KEY 1SS355
S321 S324
S327
D350
UP CH/WX FAV
KEY
S322
S325
S328
DOWN SQL VOL Q350
2SC4116
S5V
IC190
1
VIN1 VIN8
2
VOUT1 VOUT8
3
VOUT2 VOUT7
4 8 4
VIN2 VIN7
V+ V+ 5
VDD GND
GND GND 6
DAST
LD RESET
11 4 7
CLK VDAREF
8
DI DO
9
R192 VIN3 VIN6
IC200 IC363
10
MCON
LM2902PWR LM2904PWR VOUT3 VOUT6
11
390
VOUT4 VOUT5
12
VIN4 VIN5
M62364FP
0.22 ECJ10 6.3V B
1.89V
*C261
470K
180K 0.01
R388
C263
R276
100K
R263
LM2902PWR
IC260 9
100K
1 14 8
I/O1 VDD R277
2 13 10
O /I1 CONT 1
3 12 IC200
O /I2 CONT4
4 11 DETIN
I/O2 I/O 4 33K R272
5 10 DETO
CONT 2 O /I4
6 9
CONT 3 O /I3 R271 120K
7 8
VSS I/O 3 R273
CD4066BPWR
22K
1.88V
R255 R203 R207 R377 R378
470K 220K 27K 82K 82K
LM2902PWR
6 2
7 1
100K
5 3
R202
IC200 I C200
LM2902PWR
R376
100K
1.8K R443
R442 100K
LM2904PWR
6
D354
7
C429
5
KDS160E
0.018 IC363
150
1
2
C286
3
150
4
C289
CPU5V
R352
J252
6.8K
R351
2 1
4 3
33K 6 5
TC7W04FU
Q361 1
2SA1586 06FLT-SM2-TB 2
5 4 3
R449
6 3 4
7 2
18K R456
8 1
4.7K
I C364
5
CPU5V
24
23
22
21
20
19
18
17
16
15
14
VOLOUT
13
DET
R274 R288 100K
4.95V
390K 220K R402
0.1
C285
R279
KRC404E
Q 358
1.5K
C265
120P
91
92
93
94
95
96
97
TXM S
98
DETMS
99
ATTS
100
101
PTTM
102
EXPTT
103
PTTIN
R212 R213
C378 C207
104
BTYPE
105
BPCTRL
0.0047 1.5K 68K 0.1
106
WET
LM2902PWR
PON 107
13
16/9 108
14 CH/WX 109
R379
12 UP 110
DOWN 111
82K
I C200 FAV 112
1.84V
VOL 113
SCAN 114
SQL 115
H/L 116
KEYM1 117
KEYM2 118
KEYM3 119
UNLK 120
R427
270
TX:0.00V
RX:7.39V
Q230
AFV RSQ035P03TR BEEP
CP360
CP10S
PS
IC362
8
OUT_A -IN_A
7
VCC +IN_A
6 KTC811U
OUT_B +IN_B
5 Q231
GND -IN_B
NJM2073M
CPU5V
I C341
I C340 1 5
OUT CD
8 2
A0 VCC VDD
7 3 4
A1 WP VSS NC
6
A2 SCL
5 S-80942CNMC
VSS SDA
S-24C64CI-T8T1U3
S11000-1
DS246
LEDON
4.93V
KRC404E
Q240
60 SEG9
59 SEG8
58 SEG7
57
SEG6
56
SEG5
55
SEG4
54
SEG3
53
SEG2
52
SEG1
51
SEG0
50
49
48
IC360 COM2
47
COM1
46
COM0
UPD780318GC-512-9EB-A
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
TDEC
DASTB
SDATAO
SCLK
X360
CR-834
7.9869MMHz
4.20VP-P
S5V
DETDET
MOD MOD
MOD
R373
1M
A TIS
Q352
KRC404E
LCDS
EXDET
WDECV
PWSW
DET
NOISV WE T
RSSIV
BATTV
KEYM3
KEYM2
KEYM1
CPU5V
*; Refer to "PARTS LIST."