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119
19 Appendix Information of Schematic Diagram
19.1. Voltage & Waveform Chart
Note:
• Indication Voltage Values are in 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 voltage values, depending on the internal impedance of the DC circuit tester.
Therefore, there may exist some errors in 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.
19.1.1.
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
TUNER
0
2.8
0
0
0
0
3.3
2.8
0
3.3
3.3
0
2.8
2.8
2.8
2.8
2.8
0
0
0
REF NO.
MODE
1
2
3
4
5
POWER ON 3.0
0
0
5.1
3.2
STANDBY
3.0
0
0
5.1
3.3
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
POWER ON
0
1.2
3.3
0
0
0
3.3
0
0
3.3
1.6
3.3
1.5
3.3
3.3
0
0
0.9
0
3.3
STANDBY
0
1.2
3.3
0
0
0
3.3
0
0
3.3
1.6
3.3
1.5
3.3
3.3
0
0
0.9
0
3.3
REF NO.
MODE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
POWER ON 3.3
3.3
3.3
1.3
2.5
1.8
3.0
3.1
0
0
0
3.2
3.3
3.3
0
3.3
3.3
0
0
0
STANDBY
3.3
3.3
3.3
1.3
2.5
1.8
3.0
3.1
0
0
0
3.2
3.3
3.3
0
3.3
3.3
3.3
0
0
REF NO.
MODE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
POWER ON 0.8
0.8
3.3
0
3.3
0
0
3.3
3.3
3.3
3.3
3.3
0
0
3.3
3.3
0
0
0
3.3
STANDBY
0.8
0.8
3.3
0
3.3
0
0
3.3
3.3
3.3
3.3
3.3
0
0
3.3
3.3
0
0
0
3.3
REF NO.
MODE
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
POWER ON 3.3
0
0
0
0
3.2
0
0
0
0
0
0
3.3
0
3.3
3.3
0
0
3.3
0
STANDBY
3.3
0
0
0
0
3.2
0
0
0
0
0
0
3.3
0
3.3
3.3
0
0
3.3
0
REF NO.
MODE
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
POWER ON 3.3
0
0
0
0
3.3
0
2.0
2.1
3.2
0
0
3.2
0
3.3
3.3
3.3
0
3.0
3.3
STANDBY
3.3
0
0
0
0
3.3
0
2.0
2.1
3.2
0
0
3.2
0
3.3
3.3
3.3
0
3.0
3.3
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
0
0
0
0
3.3
3.3
0
3.3
STANDBY
0
0
0
0
3.3
3.3
0
3.3
REF NO.
MODE
1
2
3
4
5
6
7
8
POWER ON
0
5.0
5.0
3.2
3.2
5.0
5.0
5.0
STANDBY
0
5.0
5.0
3.2
3.2
5.0
5.0
5.0
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
POWER ON 1.6
2.3
2.0
1.0
1.5
0
16.0 15.6 10.6 12.0 12.7 16.2 16.3 16.3 14.3 1.7
1.0
1.9
2.4
2.4
STANDBY
1.6
2.3
2.0
1.0
1.5
0
16.0 15.6 10.6 12.0 12.5 15.7 15.7 15.9 14.0 1.7
1.0
1.9
2.4
2.4
IC2300
IC2901
SA-XH175EE/GS MAIN P.C.B.
IC52
IC2602
IC2300
IC2300
IC2301
IC2091
IC2300
IC2300
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