Read Sony CDC-Z137 Service Manual online
31
CDC-Z137
IC601 LC75853NW (KEY Board)
49
KS6
KI1
KI2
KI3
KI4
KI5
TEST
VDD
VDD1
VDD2
VSS
50
51
52
53
54
32 S32
S31
S28
31
S30
30
S29
29
28
27 S27
S26
S23
26
S25
25
S24
24
23
S20
S22
22
S21
21
20
S17
S19
19
S18
18
17
55
56
57
58
59
60
VDET
SEGMENT DRIVER & LATCH
SHIFT REGISTER
CONTROL
REGISTER
COMMON
DRIVER
KEY SCAN
KEY BUFFER
CLOCK
GENERATOR
C
2
B
INTERFACE
OSC
61
DO
62
CE
63
CL
64
DI
1
S1
2
S2
3
S3
4
S4
5
S5
6
S6
7
S7
8
S8
9
S9
10
S10
11
S11
12
S12
13
S13
14
S14
15
S15
16
S16
48
KS5
46
KS3
47
KS4
44
KS1
43
COM3
42
COM2
41
COM1
40
S40
39
S39
38
S38
37
S37
36
S36
35
S35
34
S34
33
S33
45
KS2
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