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CD-BA3000 (serv.man7). (including circuit diagrams and s) - Sharp Audio Service Manual (repair manual). Page 36

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CD-BA3000H
– 36 –
0V
0V
0V
0V
0V
0V
4.6V
4.6V
0V
2.6V
4.9V
4.7V
4.9V
4.6V
0V
0V
4.6V
4.6V
4.6V
0V
0V
0V
4.8V
0V
4.9V
4.8V
0V
0V
0V
0V
0V
4.9V
5.0V
4.9V
4.6V
5.0V
4.9V
4.9V
0V
4.8V
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
4.9V
4.9V
0V
0V
4.9V
–29.8V
–27.5V
–29.7V
–18.5V
–29.7V
–29.7V
4.9V
4.9V
0V
34.3V
–20.1V
–16.4V
–12.2V
–16.5V
–14.2V
–31.9V
–31.9V
–18.8V
–18.8V
60
59
58
57
56
55
54
53
52
51
61
74
73
72
71
70
69
68
67
66
65
64
63
62
–31.8V
–31.8V
–31.9V
–20.5V
–20.6V
–27.6V
–27.7V
–23.4V
–23.1V
–20.9V
–34.1V
–18.9V
–28.7V
–26.0V
–29.8V
–29.7V
78
77
76
75
79
90
89
88
87
86
85
84
83
82
81
3.0V
1.9V
9.1V
9.1V
0V
3.8V
4.6V
4.5V
4.5V
4.9V
50
49
48
47
46
45
44
43
42
41
–31.9V
–31.9V
–31.9V
–31.9V
–31.9V
–31.9V
–32.0V
–31.9V
–31.9V
–31.9V
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
9V
9V
0V
0V
0V
0V
9V
5V
9V
0V
9V
0V
9
8
7
6
5
4
3
2
1
12
11
10
9V
5V
1.8V
9V
0V
5V
17
16
15
14
13
18
PIN
NO.
VOLTAGE
IC702
–37V
37V
77.6V
0V
37V
37V
–23V
–77V
0V
0V
0V
0V
9
8
7
6
5
4
3
2
1
12
11
10
0V
3.1V
0V
15
14
13
–75V
75V
0V
18
17
16
0V
0V
–75V
21
20
0V
0V
23
22
19
PIN
NO.
VOLTAGE
IC901
4.6V (4.9V)
0V (0V)
2.1V (2.1V)
4.5V (4.8V)
2.1V (2.1V)
2.1V (2.1V)
4.6V (4.9V)
2.4V (3.2V)
4.5V (4.8V)
3.9V (0V)
3.3V (1.8V)
3.3V (1.1V)
9
8
7
6
5
4
3
2
1
12
11
10
1.2V (1.2V)
3.5V (2.0V)
1.2V (1.2V)
2.0V (2.0V)
2.7V (0V)
2.1V (0.9V)
0V (1.9V)
0.3V (0.9V)
17
16
15
14
13
20
19
18
2.6V (2.0V)
2.6V (2.0V)
4.5V (4.8V)
3.0V (3.3V)
21
24
23
22
PIN
NO.
VOLTAGE
IC303
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
13.0V
12.8V
13.0V
13.0V
12.8V
0V
13.0V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC562
13.1V
1.3V
13.1V
13.1V
1.3V
0V
13.1V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC561
13.1V
1.4V
13.1V
13.1V
1.4V
0V
13.1V
18.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC563
0V
0V
–6V
2V
0.6V
–7.6V
0V
6.3V
8
7
6
5
4
3
2
1
PIN
NO.
VOLTAGE
IC860
20V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
Q852
20V
0V
10V
3
2
1
PIN
NO.
VOLTAGE
Q851
10V
20V
9.5V
3
2
1
PIN
NO.
VOLTAGE
Q850
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)
0V (0V)
0V (0V)
0.5V (0.5V)
1.9V (1.9V)
0V (0V)
0.6V (0.6V)
3.3V (3.3V)
3.3V (3.3V)
0V (0V)
0V (0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V (0V)
6.7V (6.7V)
4.0V (4.0V)
3.3V (3.3V)
0.6V (0.6V)
0V (0V)
0V (0V)
0V (0V)
17
16
15
14
13
20
19
18
1.9V (1.9V)
0.5V (0.5V)
0V (0V)
0V (0V)
21
24
23
22
PIN
NO.
VOLTAGE
IC101
0.1V (9.9V)
2.9V (2.9V)
2.4V (2.4V)
0V (0V)
0V (0V)
0V (0V)
4.8V (4.9V)
4.2V (0V)
3.3V (0V)
0V (3.9V)
5.1V (5.1V)
2.2V (0V)
9
8
7
6
5
4
3
2
1
12
11
10
0V (2.4V)
5.0V (5.0V)
0V (0V)
2.3V (0V)
5.0V (5.0V)
0.6V (0.8V)
0.8V (1.8V)
2.0V (1.0 V)
17
16
15
14
13
20
19
18
0V (0V)
2.5V (3.0V)
21
22
PIN
NO.
VOLTAGE
IC302
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
5.0V
0V
5.0V
3
2
1
PIN
NO.
VOLTAGE
IC704
0V
2.72V
2.6V
2.59V
5.2V
0V
2.55V 
0V
0V
0V 
0V
2.66V
9
8
7
6
5
4
3
2
1
12
11
10
0V
2.56V
5.21V 
0V 
0V
1.4V 
1.7V 
4.6V 
17
16
15
14
13
20
19
18
4.3V 
0V 
21
22
PIN
NO.
VOLTAGE
ICT21
0V 
0V
23
24
VOLTAGE
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