Voltage Measurement And Waveform - Sony KV-21CL5K Service Manual

KV-21CL5K
RM-W100

4-4. VOLTAGE MEASUREMENT AND WAVEFORM

A BOARD VOLTAGE LIST AND WAVEFORM
Ref
IC001
Pin No. Voltage[v] Ref
1 0.01
2 0.01
3 0.03
4 3.3
5 3.3
6 0.01
7 3.3
8 0
9 3.3
10 –
11 –
12 10
13 0.17
14 2.5
15 4.9
16 1.9
17 2.3
18 0.01
19 2.3
20 2.3
21 4.3
1
1.08Vp-p
22 0.05
2
1.92Vp-p
23 0.01
3
2.04Vp-p
24 2.0
25 2.0
26 2.4
27 2.0
28 0.05
29 0.04
30 1.9
31 2.7
32 0.55
33 0.04
34 0.04
35 2.2
36 3.1
37 3.1
38 0.03
39 2.4
40 0.01
41 2.0
42 1.9
43 2.3
44 0.03
45 8.5
46 2.3
47 4.9
Pin No. Voltage[v] Ref
48 0.05
4
2.16Vp-p
49 2.2
50 2.2
51 1.4
52 1.6
53 2.2
54 2.2
55 1.4
56 2.2
57 2.2
58 1.4
59 1.6
60 3.2
61 3.2
62 3.4
63 3.5
64 1.3
65 3.4
66 0.5
5
5.44Vp-p
67 1.4
6
3.12Vp-p
68 0
69 4.9
70 1.3
71 1.3
72 1.3
73 2.0
74 1.8
75 0.13
76 0.01
77 0.01
78 1.3
79 1.3
80 1.3
81 0.03
82 4.9
83 2.9
84 3.2 IC002
85 1.6
7
IC003
1.60Vp-p
– 42 –
Pin No. Voltage[v]
86 1.5
8
1.40Vp-p
87 1.6
9
1.40Vp-p
88 3.3
89 0.01
90 3.3
91 0.03
92 0.01
93 0.05
94 3.3
95 0.01
96 1.7
97 1.5
98 3.6
99 3.6
100 1.8
101 0.01
102 3.3
103 0.73
104 0.05
105 2.7
106 0.03
107 3.3
108 3.2
109 3.6
110 3.3
111 0.64
112 0.03
113 0.04
114 3.0
115 0.03
116 0
117 0.02
118 1.8
119 1.8
120 0.74
121 0.01
122 0.01
123 3.3
124 0.05
125 0.01
126 3.3
127 3.4
128 0.13
VCC 56.2
G 55.6
O 55.6
1 0
2 0
3 0
4 0
5 3.6
6 3.6
7 0
8 3.3