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Service manual

ManualsBrandsSharp ManualsHome AudioCD-BA1200H
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CD-BA1200H
– 36 –
VOLTAGE
0V
0V
0V
0V
0V
0V
4.67V
4.78V
0V
1.16V
2.25V
4.30V
4.85V
4.75V
4.74V
4.69V
4.78V
0V
5.0V
0V
0V
0V
4.85V
0V
4.69V
4.82V
0V
0.3V
0V
0V
0V
4.81V
4.81V
4.81V
4.9V
5.0V
4.9V
0V
0V
5.0V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
40
39
38
37
36
35
34
33
32
31
PIN
NO. NO.
VOLTAGE
IC701
PIN
VOLTAGE
4.81V
4.81V
4.81V
0V
4.29V
–18.6V
–21.7V
–28.2V
–27.1V
–27.7V
0V
4.81V
0V
0V
27.8V
–27.8V
0V
0V
0V
0V
0V
–27.7V
–12.9V
–24.4V
60
59
58
57
56
55
54
53
52
51
61
74
73
72
71
70
69
68
67
66
65
64
63
62
–24.4V
–27.1V
–27.1V
–24.4V
–24.4V
–27.1V
–25.9V
–15.7V
–22.2V
–22.3V
–27.8V
–18.6V
–12.9V
–24.4V
–24.4V
–27.1V
78
77
76
75
79
90
89
88
87
86
85
84
83
82
81
4.78V
1.7V
9.45V
9.45V
9.45V
3.8V
4.89V
0V
4.89V
4.79V
50
49
48
47
46
45
44
43
42
41
–24.4V
–24.4V
–24.4V
–24.4V
–24.4V
–24.4V
–27.1V
–24.4V
–27.1V
–24.4V
100
99
98
97
96
95
94
93
92
91
80
1.9V
4.9V
0V
0V
1.6V
1.6V
2.1V
0V
0V
0V
0V
0V
2.1V
2.1V
2.1V
1.6V
1.6V
1.8V
2.1V
0V
0V
2.1V
4.9V
3.5V
4.9V
1.6V
2.1V
2.1V
0V
0V
0V
0V
0V
0V
0V
4.2V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
36
35
34
33
32
31
0V
2.1V
2.1V
4.9V
2.1V
41
2.1V
42
40
39
38
37
PIN
NO.
VOLTAGE
IC3
16.72V
0V
0V
0V
16.27V
0V
0V
0V
0V
34.2V
16.6V
0V
9
8
7
6
5
4
3
2
1
12
11
10
PIN
NO.
VOLTAGE
IC901
2.8V (0.2V)
0V (0V)
0.8V (0V)
1.5V (0V)
3.6V (0.4V)
1.5V (0V)
3.6V (0.4V)
3.5V (0.3V)
3.6V (0.3V)
9
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC301
19.12V
0V
10.04V
3
2
1
PIN
NO.
VOLTAGE
IC902
19.12V
0.64V
5.64V
3
2
1
PIN
NO.
VOLTAGE
IC904
10.04V
19.05V
9.57V
3
2
1
PIN
NO.
VOLTAGE
Q903
4.9V
0V
4.9V
3
2
1
PIN
NO.
VOLTAGE
IC704
0V
3.0V
3.3V
3.3V
0V
0V
0V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
1.7V
4.7V
0V
1.6V
0V
2.4V
3.3V
0V
1.6V
3.0V
0V
3.3V
0V
0.7V
0V
0V
0V
0V
0V
1.6V
3.3V
0V
1.6V
1.6V
1.6V
1.6V
0V
2.1V
2.1V
0V
3.3V
3.5V
3.3V
3.3V
3.3V
1.6V
1.6V
1.5V
0V
1.5V
3.0V
3.3V
1.8V
3.0V
0V
0V
0V
1.7V
2.4V
0V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
PIN
NO.
VOLTAGE
51
64
63
62
61
60
59
58
57
56
55
54
53
52
3.4V
0V
0V
3.2V
0V
0V
0V
0V
0V
4.8V
4.9V
4.9V
4.6V
0V
4.9V
0V
68
67
66
65
69
80
79
78
77
76
75
74
73
72
71
70
IC2
0V
0V
0V
0V
0.55V
2.16V
1.25V
0.58V
3.17V
3.55V
0V
0V
9
8
7
6
5
4
3
2
1
12
11
10
0V
4.72V
4.37V
3.67V
0.38V
0V
0V
0V
17
16
15
14
13
20
19
18
2.16V
0.55V
0V
0V
21
24
23
22
PIN
NO.
VOLTAGE
IC101
4.96V
4.96V
0V
0V
0V
4.96V
4.96V
4.89V
4.78V
4.78V
4.78V
4.78V
9
8
7
6
5
4
3
2
1
12
11
10
4.78V
4.78V
4.78V
4.78V
5.1V
5.5V
5.0V
4.66V
17
16
15
14
13
20
19
18
5.03V
4.97V
10.0V
0V
21
24
23
22
PIN
NO.
VOLTAGE
IC601
9.87V
0V
2.15V
0V
0V
0V
4.83V
4.4V
0V
0V
4.64V
2.27V
9
8
7
6
5
4
3
2
1
12
11
10
2.13V
4.66V
0V
0V
4.86V
0.73V
0.73V
6.3V
17
16
15
14
13
20
19
18
0V
2.33V
21
22
PIN
NO.
VOLTAGE
IC302
4.65V
0V
2.12V
4.78V
2.12V
2.11V
4.65V
3.02V
4.78V
4.08V
1.63V
1.13V
9
8
7
6
5
4
3
2
1
12
11
10
1.29V
2.08V
1.31V
2.07V
0V
1.43V
1.99V
1.44V
17
16
15
14
13
20
19
18
2.08V
2.08V
21
22
4.48V
3.35V
23
24
PIN
NO.
VOLTAGE
IC303
1.6V
0V
1.6V
1.6V
1.6V
0V
0V
1.6V
3.3V
0V
0V
0V
0V
1.6V
1.6V
1.6V
1.6V
1.6V
1.6V
2.6V
1.6V
1.6V
1.6V
1.6V
1.6V
0V
0V
0V
1.6V
3.3V
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
PIN
NO.
VOLTAGE
IC1