127
18 Appendix Information of Schematic Diagram
18.1. 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.
• 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.
18.1.1.
Voltage Measurement
18.1.1.1. MAIN P.C.B. (1/3)
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
3.4
0
3.4
0
0
3.4
3.4
1.2
0
0
3.4
3.5
3.5
3.4
0
0
3.4
3.4
3.5
1.1
STANDBY
3.4
0
3.4
0
0
3.4
3.4
1.2
0
0
3.4
3.5
3.5
3.4
0
0
3.4
3.4
3.5
1.1
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
3.4
1.4
1.6
1.6
1.6
1.6
1.6
1.6
0
0
0
0
9.1
9.1
2.5
3.3
2.5
3.3
0
4.0
STANDBY
3.4
1.4
1.6
1.6
1.6
1.6
1.6
1.6
0
0
0
0
9.1
9.1
2.5
3.3
2.5
3.3
0
4.0
REF NO.
MODE
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
CD PLAY
3.0
2.5
3.3
2.5
3.3
9.1
9.1
6.0
0
0
1.2
4.0
0
3.6
6.0
9.1
9.1
3.3
2.5
3.3
STANDBY
3.0
2.5
3.3
2.5
3.3
9.1
9.1
6.0
0
0
1.2
4.0
0
3.6
6.0
9.1
9.1
3.3
2.5
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
CD PLAY
0
3.0
0
0
0
0
0
0
0
0
0
0.7
3.1
0
5.9
0
1.5
1.4
0
0
STANDBY
0
3.0
0
0
0
0
0
0
0
0
0
0.7
3.1
0
5.9
0
1.5
1.4
0
0
REF NO.
MODE
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
CD PLAY
0
1.7
0
0
0
3.1
3.2
3.2
3.5
0
3.5
0
0
0
0
1.2
1.2
0
0
1.2
STANDBY
0
1.7
0
0
0
3.1
3.2
3.2
3.5
0
3.5
0
0
0
0
1.2
1.2
0
0
1.2
REF NO.
MODE
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CD PLAY
0
3.5
0
0
0.5
0.3
1.0
1.0
0.8
0.9
1.2
1.0
3.5
1.4
3.3
3.3
3.3
3.3
0
3.5
STANDBY
0
3.5
0
0
0.5
0.3
1.0
1.0
0.8
0.9
1.2
1.0
3.5
1.4
3.3
3.3
3.3
3.3
0
3.5
REF NO.
MODE
121
122
123
124
125
126
127
128
CD PLAY
0
0
3.5
3.5
0
0.9
3.5
3.5
STANDBY
0
0
3.5
3.5
0
0.9
3.5
3.5
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
3.4
1.2
3.4
0
3.4
3.3
0
3.5
STANDBY
3.4
1.3
3.5
0
3.5
3.3
0
3.5
REF NO.
MODE
1
2
3
4
5
6
7
8
CD PLAY
3.3
3.3
0
0
3.3
3.3
0
3.3
STANDBY
3.3
3.3
0
0
3.3
3.3
0
3.3
REF NO.
MODE
1
2
3
4
5
6
7
8
9
10
CD PLAY
3.2
0.9
0.9
0.9
0
0
0.8
3.2
0
5.0
STANDBY
3.2
0.9
0.9
0.9
0
0
0.8
3.2
0
5.0
SC-HTB70P/PC MAIN P.C.B.
IC2002
IC2000
IC2001
IC2003
IC2000
IC2000
IC2000
IC2000
IC2000
IC2000
Содержание SC-HTB70P
Страница 24: ...24 ...
Страница 28: ...28 11 2 Types of Screws 11 3 Main Parts Location Diagram ...
Страница 39: ...39 Step 4 Lift up to remove the Sub Chassis Unit ...
Страница 49: ...49 Step 8 Release 1 catch Step 9 Remove the AC Holder ...
Страница 55: ...55 Step 3 Remove 2 screws Step 4 Remove the Button Holder ...
Страница 60: ...60 11 14 2 Assembly of 6P Wire Main Button Step 1 Dressed the 6P Wire into the ribs of the Front Panel Block ...
Страница 88: ...88 Step 13 SMPS P C B and AC Inlet P C B can be checked as diagram shown ...
Страница 92: ...92 Step 17 Main P C B Side A can be checked as diagram shown ...
Страница 94: ...94 Step 13 Main P C B Side B can be checked as diagram shown ...
Страница 98: ...98 Step 17 AUX P C B and Sensor P C B can be checked as diagram shown ...
Страница 101: ...101 Step 6 LED P C B can be checked as diagram shown ...
Страница 102: ...102 ...
Страница 110: ...110 ...
Страница 132: ...132 WF No Q5504 3 PLAY 24Vp p 500nsec div WF No Q5504 5 PLAY 7 0Vp p 500nsec div ...
Страница 136: ...136 ...
Страница 140: ...140 ...
