Voltage - Sharp MD-MT866H Service Manual

Portable minidisc recorder
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MD-MT866H/MD-MT866W
IC101
PIN
PIN
VOLTAGE PIN

VOLTAGE

NO.
NO.
1
0.26V
1
2
0.26V
2
3
0.26V
3
4
0.26V
4
5
1.25V
5
1.25V
6
6
1.25V
7
7
1.25V
8
8
1.25V
9
9
10
1.25V
10
1.25V
11
11
1.25V
12
12
1.25V
13
13
1.25V
14
14
15
1.25V
15
16
1.25V
16
17
1.25V
17
18
1.25V
18
19
1.25V
19
20
1.25V
20
21
1.25V
21
1.25V
22
22
23
1.25V
23
24
0.26V
24
25
1.48V
25
0V
26
26
0V
27
27
2.49V
28
28
2.49V
29
29
30
1.78V
30
31
0V
31
32
1.25V
32
33
1.25V
33
0.26V
34
34
1.25V
35
35
1.25V
36
36
37
1.3V
37
38
1.28V
38
39
0.7V
39
40
2.49V
40
41
1.51V
41
42
0V
42
1.25V
43
43
0.28V
44
44
45
0.28V
45
46
1.25V
46
47
0.28V
47
48
0.28V
48
49
50
IC202
PIN
VOLTAGE
NO.
1
2.71V
IC351
2
1.59V
PIN
3
1.66V
VOLTAGE
NO.
4
2.47V
1
5
1.85V
2
6
0V
3
7
1.07V
4
8
1.39V
5
9
0.55V
6
10
0.55V
7
11
0.55V
8
12
2.71V
9
13
0V
10
14
0.58V
11
15
0.94V
12
16
0.94V
13
17
0.94V
14
18
0.94V
19
1.07V
IC431
20
1.80V
PIN
VOLTAGE
21
2.01
NO.
22
1.61V
1
2.34V
23
1.61V
2
2.34V
24
0V
3
0V
4
0V
IC201
PIN
VOLTAGE
NO.
NO.
0.79V
51
1.24V
2.49V
52
0V
1.3V
53
0V
0V
54
0V
2.49V
55
2.5V
1.25V
56
0V
1.25V
57
0V
1.25V
58
0V
1.25V
59
0V
1.25V
60
0V
10
1.25V
61
0V
11
1.25V
62
1.55V
12
1.64V
0V
63
13
1.55V
64
0.67V
14
0V
65
0.67V
15
0V
66
2.7V
16
1.24V
67
1.24V
17
0V
68
0V
18
0V
69
0V
19
0V
70
1.24V
20
0V
71
1.24V
21
0V
72
0V
22
0V
73
0V
23
0V
74
0V
24
0V
75
1.23V
25
0.55V
1.23V
76
26
0.55V
1.23V
77
27
0.55V
78
0V
28
1.39V
79
0V
29
1.06V
80
0V
30
2.5V
81
0V
31
0.58V
82
2.5V
32
0.94V
83
0V
33
0.93V
84
0V
34
0.93V
85
1.25V
35
0.93V
86
2.5V
36
1.8V
87
2.5V
37
0V
88
0V
38
2.02V
89
2.35V
39
1.60V
90
0V
40
1.60V
91
0V
41
1.07V
92
0V
42
1.85V
93
0V
43
2.48V
94
0V
44
1.65V
95
0V
45
1.59V
96
0V
46
1.07V
97
0V
47
2.39V
98
2.35
48
1.88V
99
2.35V
49
1.13V
100
0V
50
Preform the measurement on
the IC401 pin 37 in the TEST
mode with GND short-circuited.
(LCD is in "TEST" state.)
IC404
PIN
VOLTAGE
NO.
1
0V
2.5V
2
0V
0V
3
4.45V
0V
4
0V
2.48V
5
0V
2.5V
4.45V
0V
IC200
1.13V
PIN
VOLTAGE
4.46V
NO.
0V
1
0V
1.13V
2
2.7V
4.46V
3
1.34V
0V
4
0V
4.51V
5
2.5V
IC353
PIN
VOLTAGE
NO.
1
2.7V
2
0V
3
0V
4
0V
5
0V
6
0V
7
0V
8
2.7V
VOLTAGE
IC401
VOLTAGE PIN
VOLTAGE
NO.
51
1
0V
2.16V
2
2.47V
52
0V
53
3
0V
2.35V
4
2.33V
54
0V
5
0V
55
2.33V
2.32V
56
0V
6
0V
57
2.35V
7
0.27V
58
2.35V
8
0V
59
0V
9
0V
60
2.35V
2.21V
61
2.35V
1.92V
62
2.28V
2.28V
0.1V
63
2.35V
64
2.35V
65
2.35V
2.35V
66
0V
1.04V
67
2.35V
1.12V
0V
68
0V
2.35V
69
2.32V
0V
70
2.34V
2.35V
71
2.34V
2.35V
72
2.34V
0V
73
2.43V
0V
74
2.33V
0V
2.33V
75
0V
0.15V
76
0V
2.34V
77
0V
78
2.34V
0V
79
0V
80
0V
0.68V
81
0V
2.34V
82
0V
2.12V
83
2.15V
2.34V
84
2.69V
2.34V
2.69V
85
1.2V
2.35V
86
0V
2.35V
87
0V
2.35V
88
0V
2.35V
89
2.33V
2.35V
90
0V
0V
91
0V
0V
92
2.29V
2.35V
93
0V
0V
94
2.5V
95
0V
2.34V
96
0V
1.16V
0V
97
2.34V
0V
98
2.34V
0V
99
2.34V
100
0V
2.34V
IC873
PIN
VOLTAGE
NO.
1
0V
2
7.43V
3
2.34V
4
0V
5
4.49V
IC841
PIN
VOLTAGE
NO.
1
0V
2
2.8V
2.09V
3
4
2.09V
5
0V
IC354
PIN
VOLTAGE
NO.
0V
1
0V
2
0V
3
0V
4
0V
5
– 36 –
IC601
IC701
PIN
PIN
VOLTAGE
VOLTAGE
NO.
NO.
1
1
0V
0V
2
2
0V
0.42V
3
3
0V
1.24V
4
4
0V
3.73V
5
5
0V
1.25V
0V
6
6.21V
6
0V
7
1.24V
7
0V
8
7.46V
8
0V
9
0V
9
10
10
0V
0.3V
0V
11
0V
11
0V
12
0.3V
12
0V
13
13
0V
14
14
0V
0.36V
15
15
0V
0V
0V
16
1.2V
16
17
17
-2.48V
0V
18
18
0V
0V
19
19
0V
0V
20
20
2.29V
2.3V
0.85V
21
2.34V
21
0V
22
2.34V
22
23
23
0V
0V
24
24
0V
0V
25
2.29V
26
2.29V
27
2.06V
IC703
28
0V
PIN
VOLTAGE
NO.
29
0V
1
30
0V
0V
2
31
0V
2.07V
3
32
0V
0V
4
0V
33
0V
5
0V
34
0V
6
35
0V
1.76V
7
36
0V
-1.76V
8
37
0V
0V
38
9
0V
1.76V
10
39
0V
0V
11
40
2.07V
0.88V
12
41
0V
0V
13
42
0V
2.27V
14
0V
43
0V
15
44
0V
0V
16
45
1.76V
2.07V
46
17
0V
0V
18
47
-1.76V
0V
19
48
-1.76V
0,95
20
49
0V
2.45V
21
50
1.05V
0V
51
22
2.39V
0V
23
52
0.66V
0V
24
53
0V
0V
54
2.5V
IC402
55
2.5V
56
PIN
0V
VOLTAGE
NO.
57
0V
1
0V
58
0V
2
2.33V
59
0V
3
0V
60
0V
4
0V
61
0V
5
2.33V
62
0V
0V
6
63
0V
2.33V
7
64
0V
2.33V
8
IC251
IC651
PIN
VOLTAGE
PIN
NO.
VOLTAGE
NO.
1
0V
1
2.7V
2
0V
2
0V
3
0V
3
0V
4
0V
4
0V
5
0V
IC271
0V
6
PIN
0V
7
VOLTAGE
NO.
0V
8
1
0V
2
0V
IC771
3
0.3V
PIN
4
0V
VOLTAGE
NO.
5
2.7V
0V
1
2.7V
2
2.7V
3
0V
4
2.3V
5
IC501
PIN
VOLTAGE
NO.
1
0V
2
0V
3
0V
4
0V
5
2.3V
0V
6
0V
7
0V
8
0V
9
10
1.24V
1.22V
11
12
1.23V
13
0V
14
0V
0.27V
15
0.31V
16
IC842
PIN
VOLTAGE
NO.
1
0V
2
2.54V
2.52V
3
4
0V
2.34V
5
IC851
PIN
VOLTAGE
NO.
D
2.1V
S
0V
G
0.1V
IC852
PIN
VOLTAGE
NO.
1
1.17V
2
2.54V
3
0V
4
0V
5
1.1V
6
1.17V
1.15V
7
8
1.26V
IC871
PIN
VOLTAGE
NO.
1
1.24V
2
2.33V
3
0V
4
1.17V
5
2.34V
IC801
PIN
VOLTAGE
NO.
1
1.96V
2
2.06V
3
0V
4
0V
IC821
PIN
VOLTAGE
NO.
D
2.1V
S
0V
G
0.3V
IC822
PIN
VOLTAGE
NO.
1
1.17V
2
2.54V
3
0V
4
0V
5
1.1V
1.17V
6
1.15V
7
1.26V
8

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