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Sharp Manuals
Stereo System
CD-C1831V
Service manual
Voltage - Sharp CD-C1831V Service Manual
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Contents
Table of Contents
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CD-C1831V
IC1
IC2
PIN
PIN
PIN
NO. VOLTAGE
NO. VOLTAGE
NO. VOLTAGE
1
1
1
2.5V
0V
2
2
2
2.5V
0V
3
3
3
2.5V
0V
4
4
4
2.5V
0V
5
5
5
2.5V
1.9V
6
6
6
2.5V
5.0V
7
7
7
2.5V
0V
8
8
8
2.5V
0V
9
9
9
2.5V
2.5V
10
10
10
2.5V
2.4V
11
11
11
2.5V
0V
12
12
12
2.5V
0V
13
13
13
2.5V
0V
14
14
14
2.5V
5.0V
15
15
15
2.5V
0V
16
16
16
2.5V
0V
17
17
17
2.5V
5.0V
18
18
18
2.5V
5.0V
19
19
19
2.5V
0V
20
20
20
2.5V
0V
21
21
21
2.5V
2.5V
22
22
22
0V
0V
23
23
23
2.5V
5.0V
24
24
24
2.5V
0V
25
25
25
2.5V
0V
26
26
26
2.5V
0V
27
27
27
2.5V
0V
28
28
28
2.5V
0V
29
29
29
2.5V
0V
30
30
30
2.3V
5.0V
31
31
31
2.3V
2.5V
32
32
32
0V
0V
33
33
33
0V
0V
34
34
34
5.0V
0V
35
35
35
5.0V
5.0V
36
36
36
0V
4.6V
37
37
37
0V
1.9V
38
38
38
5.0V
0V
39
39
39
0V
0V
40
40
40
0V
1.9V
41
41
41
1.6V
4.6V
42
42
42
2.4V
5.0V
43
43
2.4V
5.0V
44
44
2.4V
2.1V
PIN
45
45
0V
2.1V
NO. VOLTAGE
46
46
2.5V
0V
1
47
47
2.5V
0.1V
2
48
48
0V
2.3V
3
49
49
0V
0V
4
50
50
2.4V
2.5V
5
51
51
4.6V
0V
6
52
52
4.6V
2.5V
7
53
53
0V
0V
8
54
54
0V
0V
9
55
55
5.0V
0V
10
56
56
5.0V
4.6V
11
57
57
2.5V
4.6V
12
58
58
2.5V
4.7V
13
59
1.0V
59
0V
14
60
60
1.0V
2.3V
15
61
61
2.2V
2.3V
16
62
62
4.2V
0V
17
63
63
0V
0V
18
64
64
5.0V
0V
19
20
IC4
FE301
21
PIN
PIN
22
NO. VOLTAGE
NO. VOLTAGE
23
1
1
2.6V
0V (0V)
24
2
2
2.6V
0V (0V)
3
3
2.6V
2.6V (0V)
4
4
0V
2V (1.1V)
5
5
8.5V (0V)
2.4V
6
6
0V (0V)
2.4V
7
0V (0V)
7
2.6V
8
8
0V (0V)
5.0V
IC3
IC562
IC303
PIN
PIN
NO. VOLTAGE
NO. VOLTAGE
1
1
2.5V
0.12V
2V (2V)
2
2
2.6V
0.1V
5V (5V)
3
3
2.9V
0.13V
2V (2V)
4
4
3.3V
–11.2V
0V (0V)
5
5
3.3V
0.1V
5V (5V)
6
6
3.3V
0.1V
5V (5V)
7
7
3.3V
0.1V
5.1V (5.1V)
8
8
0V
6.2V
2.9V (3.5V)
0V
9
5.1V (5.1V)
IC563
10
0V
0.1V (0.1V)
0V
PIN
11
3.9V (1.2V)
NO. VOLTAGE
12
0V
3.9V (1.2V)
1
0.2V
0V
13
2.2V (2.2V)
2
0.2V
14
0V
1.1V (1.1V)
3
0.2V
15
3.3V
1.1V (1.1V)
4
–9.8V
16
3.3V
2V (2V)
5
0.2V
17
3.0V
0.2V (0.1V)
6
0.2V
18
7.2V
2.0V (0.8V)
7
0.2V
19
5.0V
0V (1.8V)
8
6.2V
20
2.5V
0.4V (0.8V)
21
0V
2.6V (2V)
IC302
0V
22
2.6V (2V)
PIN
23
0V
NO. VOLTAGE
5.1V (5.1V)
24
7.2V
3.6V (3.6V)
1
2.6V (2.6V)
2.5V
2
0V (0V)
IC901
3.3V
3
0V (0.5V)
PIN
3.3V
NO. VOLTAGE
4
0V (0V)
11.2V
5
4.1V (4.1V)
1
–30.4V
0V
6
4.7V (4.7V)
2
–30.4V
0V
7
0.2V (11.8V)
3
30.5V
0V
8
0.5V (0.1V)
4
0V
0V
9
0.2V (0.2V)
5
0V
0V
10
0V (0V)
6
0V
0V
11
5.1V (5.1V)
7
0V
0V
12
2.5V (2.5V)
8
–29.4V
5.3V
13
5.1V (5.1V)
9
29.4V
5.3V
14
0V (0V)
10
–0.1V
3.3V
15
0V (2.5V)
11
–0.1V
3.3V
16
2.5V (0V)
12
–28.0V
7.2V
17
5.1V (5.1V)
13
–0.1V
0.1V
18
0.9V (0.9V)
14
0.1V
0.1V
19
0.9V (0.9V)
15
0V
20
IC101
1.9V (1.1V)
IC703
21
0V (0V)
PIN
22
2.5V (2.5V)
NO. VOLTAGE
0V (0V)
1
0V
0V (0V)
IC601
2
0V
0.5V (0.5V)
PIN
3
0V
NO. VOLTAGE
4.3V (4.3V)
4
0V
0.2V (0.3V)
1
0V
5
0.8V
1.3V (1.3V)
2
0V
6
0.8V
0V (0V)
3
0V
7
0.9V
0.6V (0.6V)
4
0V
8
0.9V
4.1V (4.1V)
5
0V
9
0.8V
4.0V (4.0V)
6
0V
10
0.8V
0V (0V)
7
0V
11
0.7V
0V (0V)
8
0V
12
0V
8.1V (8.1V)
9
0V
13
0V
4.8V (4.8V)
10
2.7V
14
0V
0V (0V)
11
0.2V
15
9.8V
4.1V (4.1V)
12
–2.7V
16
9.8V
0.6V (0.6V)
13
0V
17
0V
0V (0V)
14
0V
18
5.0V
2.5V (2.6V)
15
0V
0.2V (0.3V)
16
0V
4.3V (4.3V)
17
0V
0.5V (0.5V)
18
0V
0V (0V)
19
0V
0V (0V)
20
0V
IC704
PIN
NO. VOLTAGE
1
5.0V
2
0V
3
5.0V
VOLTAGE
IC701
PIN
PIN VOLTAGE
VOLTAGE
NO.
NO.
1
51
4.8V
4.8V
2
52
4.8V
4.8V
3
53
4.8V
0V
4
54
0V
4.8V
5
55
0V
0V
6
56
0V
0V
7
57
0V
0V
8
58
0V
4.7V
9
59
0V
4.8V
10
60
4.0V
4.7V
11
61
2.3V
0V
12
62
2.3V
4.8V
13
63
0V
5.0V
14
64
4.9V
5.0V
15
65
0V
5.0V
16
66
4.9V
–28V
17
67
0V
–28V
18
68
4.8V
–28V
19
69
0V
–28V
20
70
4.8V
–28V
21
71
4.8V
–28V
22
0V
72
–28V
23
73
0V
–28V
24
74
0V
–20V
25
75
0V
–28V
26
76
0V
–22.6V
27
77
0V
–25.4V
28
78
0V
–22.6V
29
79
0V
–27.8V
30
80
0V
–25.4V
31
81
5.0V
–25.3V
32
82
5.0V
–25.3V
33
83
5.0V
–22.5V
34
84
4.8V
–25.3V
35
5.0V
85
–22.7V
36
86
4.7V
–27.3V
37
87
5.0V
–22.7V
38
88
4.8V
–17.4V
39
89
4.9V
–20V
40
90
0V
–25.4V
41
91
4.7V
–25.4V
42
92
0V
–25.4V
43
93
3.6V
–25.4V
44
94
11.3V
–25.4V
45
95
11.3V
–25.4V
46
96
4.8V
–25.4V
47
4.7V
97
–25.4V
48
98
4.7V
–25.4V
49
4.7V
99
–25.4V
50
100
0V
–25.4V
Q821
Q822
PIN
PIN
NO. VOLTAGE
NO. VOLTAGE
1
1
11.3V
19.6V
2
6.2V
2
1.3V
3
3
1.2V
7.3V
Q823
Q824
PIN
PIN
NO. VOLTAGE
NO. VOLTAGE
1
1
12V
19.6V
2
2
19.6V
0V
3
3
11.3V
12.0V
– 36 –
ICV1
PIN
PIN VOLTAGE
PIN
VOLTAGE
NO.
NO.
NO.
1
33
1
0V
0V
2
34
2
0V
5.0V
3
35
3
5.0V
5.0V
4
36
4
0V
5.0V
5
37
5
5.0V
0V
6
38
6
1.5V
5.0V
7
39
7
0V
0V
8
40
8
0V
0V
9
41
9
0V
3.0V
10
42
10
5.0V
0V
11
43
11
0.1V
0V
12
44
12
0V
5.0V
13
45
13
0.1V
0V
14
46
14
0V
0V
15
47
15
5.0V
0V
16
48
16
0V
0V
17
49
17
0V
0V
18
50
18
0V
0V
19
51
19
0V
5.0V
20
52
20
0.5V
0V
21
53
21
0V
5.0V
22
22
0V
54
5.0V
23
55
23
0V
0.1V
24
56
24
5.0V
1.2V
25
57
25
0V
3.3V
26
58
26
0V
3.3V
27
59
27
0V
3.3V
28
60
28
0V
3.3V
29
61
29
0V
3.3V
30
62
30
0V
0V
31
63
31
0V
3.3V
32
64
32
0V
2.8V
33
ICV3
ICV4
34
35
PIN
PIN
NO. VOLTAGE
NO. VOLTAGE
36
1
1
5.0V
2.0V
37
2
2
0V
0V
38
3
3
0V
2.0V
39
4
4
0V
2.0V
40
5
0V
5
2.2V
41
6
5.0V
6
42
2.2V
7
0V
7
5.0V
43
8
0V
8
44
2.2V
9
0V
45
QV1
10
0.5V
46
PIN
11
0V
47
NO. VOLTAGE
12
0V
48
1
6.8V
13
3.3V
49
2
0V
14
2.6V
50
3
3.3V
15
0V
16
0.5V
17
0.5V
18
1.0V
19
2.7V
20
5.0V
21
0V
22
1.5V
23
1.5V
24
1.5V
25
1.5V
26
1.5V
27
0V
28
2.5V
29
2.5V
30
0V
31
0V
32
0V
33
0V
34
0V
35
0V
36
0V
37
0V
38
0V
39
0.5V
40
0V
ICV2
PIN VOLTAGE
VOLTAGE
NO.
51
3.3V
3.3V
52
3.3V
3.3V
53
3.3V
2.5V
54
3.3V
0.5V
55
3.3V
0V
56
0V
0V
57
3.3V
0V
58
3.3V
0V
59
3.3V
0V
60
3.3V
0V
61
0V
0V
62
0V
0V
63
1.5V
3.3V
64
1.5V
0V
65
3.3V
3.3V
66
3.3V
0V
67
3.3V
0V
68
0V
0V
69
0.5V
0V
70
5.0V
0V
71
5.0V
0V
1.5V
72
0V
73
3.3V
0V
74
3.3V
0V
75
3.3V
3.3V
76
0V
0V
77
5.0V
1.5V
78
1.0V
0V
79
0V
0V
80
0V
0V
81
2.5V
3.3V
82
2.0V
3.3V
83
2.5V
3.3V
84
0V
3.3V
0V
85
1.0V
86
3.3V
1.5V
87
0V
0V
88
1.5V
0V
89
1.5V
0V
90
1.5V
0V
91
1.5V
0V
92
1.5V
3.3V
93
0V
0V
94
3.3V
0V
95
2.5V
5.0V
96
1.0V
0V
0.5V
97
2.5V
98
0.5V
2.5V
2.6V
99
1.5V
100
0V
0V
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