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114
12 Voltage Measurement & Waveform Chart
Note:
• Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with
the chassis taken as standard.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
• Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it
may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
12.1. Main Unit (SU-ZT1)
12.1.1. MAIN P.C.B. (1/4)
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CD PLAY
0
0
0
0
0
0
0
0
0
0
0
-6.9
0
0
0
0.1
0
0
0
0
STANDBY
0
0
0
0
0
0
0
0
0
0
0
-6.9
0
0
0
0.1
0
0
0
0
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CD PLAY
0
0
0
0
0
3.3
6.9
0
0
0
0
0
0
0
0
0.1
0
0
0
0
STANDBY
0
0
0
0
0
3.3
6.9
0
0.1
0
0
0
0
0
0
0.1
0
0
0
0
REF NO.
MODE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
CD PLAY
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
STANDBY
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
2.3
2.3
2.3
0
2.3
2.3
2.3
6.9
STANDBY
2.3
2.3
2.3
0
2.3
2.3
2.3
6.9
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
2.3
2.3
2.3
0
2.3
2.3
2.3
5.0
STANDBY
2.3
2.3
2.3
0
2.3
2.3
2.3
5.0
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0.1
2.1
2.1
-6.9
2.1
2.1
0
6.9
STANDBY
0.1
2.1
2.1
-6.9
2.1
2.1
0
6.9
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
2.1
2.1
-6.9
2.1
2.1
0
6.9
STANDBY
0
2.1
2.1
-6.9
2.1
2.1
0
6.9
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
2.1
2.1
-6.9
1.7
1.7
0
6.9
STANDBY
0
2.1
2.1
-6.9
1.6
1.7
0
6.9
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
0
0
-6.9
0
0
0
6.9
STANDBY
0
0
0
-6.9
0
0
0
6.9
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
0
0
-6.9
0
0
0
6.9
STANDBY
0
0
0
-6.9
0
0
0
6.9
IC4102
IC4201
IC4001
IC4001
IC4001
IC4101
IC4202
IC4203
IC4302
SC-ZT1GN/GS(SU-ZT1GN/GS) MAIN P.C.B.
IC4301
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