Service manual
– 24 –
MD-SR50H/50W/60E/60W
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
IC401
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
1
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
Preform the measurement on
the IC401 pin 37 in the TEST
mode with GND short-circuited.
(LCD is in "TEST" state.)
PIN
NO.
VOLTAGE
IC501
IC701
IC822
IC841
IC402
IC871
IC354
IC353
IC601
IC651
IC703
IC771
IC801
IC802
IC901
100
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
3
1
2
4
5
6
7
8
9
10
11
12
13
14
15
3
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3
2
4
5
3
1
2
4
5
6
7
8
3
1
2
4
5
6
7
8
3
1
2
4
5
3
1
2
4
5
3
9
10
1
2
4
5
3
1
2
4
5
6
7
8
3
1
2
3
1
2
4
5
6
7
8
3
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
3
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
3
1
2
4
5
6
3
PIN
NO.
VOLTAGE
IC431
1
2
4
3
PIN
NO.
VOLTAGE
IC803
1
2
4
3
PIN
NO.
VOLTAGE
IC809
1
2
4
5
6
3
PIN
NO.
VOLTAGE
IC892
1
2
4
5
6
3
2.73V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
2.35V
0V
0V
0V
2.34V
0V
2.35V
2.35V
PIN
NO.
VOLTAGE
IC404
1
2
4
5
3
0.2V
0.2V
0V
2.19V
2.5V
2.34V
2.35V
0V
0V
0V
—
0.29V
2.32V
—
0.17V
0V
0.22V
0V
2.32V
2.15V
2.03V
2.25V
2.35V
2.35V
0V
2.35V
0V
2.32V
0.21V
2.32V
2.25V
0.2V
1.55V
0V
0V
1.57V
1.05V
1.75V
0.56V
0V
0V
2.35V
0V
0V
0V
2.34V
2.34V
0V
2.35V
2.13V
2.7V
2.7V
0V
0V
2.35V
2.35V
2.35V
0V
2.47V
0V
0V
2.35V
0V
2.32V
0V
2.35V
2.35V
2.32V
2.35V
2.35V
2.28V
2.35V
2.35V
2.35V
1.09V
1.12V
0V
0V
2.34V
2.35V
2.35V
2V
2.32V
2.32V
0.15V
2.35V
2.35V
0V
0V
2.34V
2.34V
2.12V
1.47V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
2.32V
0V
0V
2.35V
2.33V
0V
0V
—
—
0V
2.49V
0V
0.78V
0V
0V
1V
1V
1V
—
—
—
—
16
PIN
NO.
VOLTAGE
IC621
1
2
4
5
6
3
8.58V
0V
0V
0V
2.34V
8.55V
2.73V
—
0V
0V
0V
0V
—
—
—
—
37
38
39
40
41
42
43
44
45
46
47
48
2.34V
0V
—
—
—
8.55V
2.48V
0V
2.38V
0V
2.38V
2.34V
0V
0V
0V
0V
4.67V
0V
0V
0V
4.67V
0V
0V
0V
0V
—
4.67V
2.34V
0V
2.48V
—
—
—
—
2.48V
0V
0V
0V
0V
4.67V
0V
0V
0V
4.67V
—
0V
—
—
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
-2.32V
0V
0V
2.42V
0.86V
0V
0V
0V
0V
0V
0V
0V
0V
2.5V
-2.34V
0V
2.5V
0V
1.26V
0V
2.35V
0V
0V
2.5V
0V
-2.34V
-2.34V
0V
0V
0V
0V
0V
0V
2.74V
2.74V
—
2.5V
0V
2V
4.44V
0.45V
1.03V
3.28V
0.45V
0.99V
4.38V
4.4V
4.46V
0V
0V
5.36V
0V
0V
0V
2.35V
5.36V
1.17V
2.8V
0.37V
0V
1.17V
1.17V
1.16V
1.26V
—
2.8V
2.06V
2.06V
0V
PIN
NO.
VOLTAGE
1
IC842
2
4
5
3
—
2.81V
2.56V
0V
2.36V
PIN
NO.
VOLTAGE
IC852
1
2
4
5
6
7
8
3
1.17V
2.8V
0.67V
0V
1.2V
1.17V
1.16V
1.26V
1V
2.36V
0V
1.18V
2.36V
PIN
NO.
VOLTAGE
IC873
1
2
4
5
3
0V
8.59V
2.36V
—
4.47V
0V
0.6V
1.58V
0V
0V
0V
0V
0V
2.34V
0V
2.49V
0V
2.49V
0V
—
—
—
—
0V
0.75V
—
—
—
0V
0V
0V
0V
0V
0V
0V
21
22
23
24
PIN
NO.
VOLTAGE
PIN
NO.
VOLTAGE
IC201
100
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
3
0.84V
2.48V
1.22V
0V
1.24V
1.24V
1.24V
1.24V
1.24V
2V
1.17V
2V
0V
0V
0V
0V
1V
0V
0V
0V
0V
0V
0V
0V
0V
0.5V
0.5V
0.5V
1.4V
1.13V
2.55V
0.5V
0.8V
0.8V
0.8V
0.8V
1.84V
0V
1.97V
1.38V
1.53V
0.9V
1.9V
2.56V
1.66V
1.56V
0V
1.9V
1V
0.9V
PIN
NO.
VOLTAGE
IC101
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
3
37
38
39
40
41
42
43
44
45
46
47
48
0.71V
0.71V
0.71V
0.71V
1.24V
1.24V
0V
1.24V
1.24V
1.24V
1.24V
1.24V
2.28V
2.28V
0V
0V
2.48V
0V
0V
1.47V
2.35V
0V
0V
2.48V
1.24V
1.24V
1.24V
1.24V
1.24V
1.2V
1.24V
1.24V
1.24V
0V
1.24V
1.24V
0.16V
1.24V
1.24V
1.24V
1.24V
2.48V
0V
—
1.24V
1.24V
1.24V
0.19V
1V
0V
0V
0V
0V
2V
0V
0V
0V
0V
—
2V
0V
0.88V
0.76V
2.46V
1V
2V
0V
1V
1V
0V
0V
0V
—
2V
2V
2V
0V
2V
1V
2V
2V
2V
1V
2V
2V
0V
2.34V
0V
0.3V
0V
0V
1.6V
1.2V
1.7V
0.3V
2.25V
2.34V
0.2V
PIN
NO.
VOLTAGE
IC202
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3
1.55V
2.05V
2.57V
1.94V
0.93V
1.43V
0.49V
0.6V
0.6V
2.55V
0.6V
0.99V
0.99V
0.99V
0.8V
1.87V
2.12V
1.66V
1.73V
0V
PIN
NO.
VOLTAGE
IC203
1
2
3
0V
2V
2.73V
PIN
NO.
VOLTAGE
IC251
1
2
4
5
6
7
8
3
2.07V
0V
0V
0V
5.35V
2.08V
2.08V
2.08V
PIN
NO.
VOLTAGE
IC253
1
2
4
5
6
3
5.36V
5.31V
5.31V
0V
0V
0V
PIN
NO.
VOLTAGE
IC255
1
2
4
5
6
7
8
3
-1.05V
0V
0V
-2.25V
0V
0V
-1.65V
2.72V
PIN
NO.
VOLTAGE
IC256
1
2
4
5
6
3
0V
—
—
0V
0V
0V
PIN
NO.
VOLTAGE
IC257
1
2
4
3
0V
0V
—
0V
PIN
NO.
VOLTAGE
IC258
1
2
4
5
6
3
0V
0.59V
4.93V
0V
0V
0V
PIN
NO.
VOLTAGE
IC260
1
2
4
5
6
3
2.72V
2.7V
2.7V
0V
0V
—
PIN
NO.
VOLTAGE
IC259
1
2
4
5
6
3
—
0.56V
0.56V
0V
0.56V
2.63V
PIN
NO.
VOLTAGE
IC351
1
2
4
5
6
7
8
9
10
11
12
13
14
3
0V
0V
4.44V
0V
0V
4.44V
0V
0.91V
4.44V
0V
0.91V
4.44V
0V
4.49V
PIN
NO.
VOLTAGE
IC821
S
G
D
PIN
NO.
VOLTAGE
IC851
S
G
D
0V
—
—
0V
—
—