LG LH-CX640 Series Service Manual page 54

3-55
3-56
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CIRCUIT VOLTAGE
CHART
EE PB
REC
MODE
PIN NO.
1
2
3
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2.4
2.3
3.4
2.5
0
0.5
0
0
2.9
2.4
2.1
3.1
4
2.4
3.0
3.2
0
0
2.2
2.1
1.9
0
4.8
4.8
2.3
2.3
2.9
0.1
0.19
2
4.9
0
2.2
pulse
2.1
2.2
2.1
2.1
2.1
2.2
2.2
0
2.1
0
2.1
4.9
2.1
4.9
4.0
0
3.1
2.7
2.7
2.4
2.4
3.4
2.4
0
3.7
0
0
2.9
2.4
2.4
1.8
4
2.4
1.8
3.1
4
3.3
2.2
2.5
2.3
0
4.8
4.8
2.2
2.2
2.7
0.18
0.3
2
4.9
0
2.2
pulse
2.1
2.1
2.1
2.1
2.1
2.1
2.2
0
2.1
0
2.1
0.1
2.1
4.9
3.8
0
1.8
2.6
2.6
2.4
2.4
3.4
2.4
0
0.5
0
0
2.9
2.4
2.4
2.3
3
4
2.4
3.2
0
0.12
2.2
2.3
2.3
0
4.8
4.8
1.5
2.4
2.9
0.18
3.8
2
1
0.8
2.3
0.6
2.3
2.2
2.2
2.2
2.9
2.2
2.2
0
2.2
1
2.2
4.8
2.2
4.9
2.8
0
2
3.4
3.4
IC201
IC301
EE PB
REC
MODE
PIN NO.
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
4.9
0.1
1.5
2
4
2.6
0
4.5
4.4
2.9
0
1.8
2.9
1.8
2
9
0
0
4.9
2.4
0
2.4
2.6
4
4.2
2.9
1.9
0
1.9
2.3
1.9
5.2
2.2
1.9
3.6
2.8
1.5
1.8
0
1.8
0
1.7
0
0.2
4.8
4.7
0
3.3
4.9
2
2.4
2.3
2.3
1.5
2.5
4.9
3.3
2.2
2.0
4
2.6
0
4.4
4.4
2
0
1.8
3.5
1.8
2
9
0
0
4.9
2.2
3.9
2.4
2.5
4
4.2
3.6
1.9
0
1.9
2.2
1.9
5.2
2.0
2.3
1.3
2.8
1.5
1.3
0
1.3
0
1.1
0
3.7
4.9
4.8
pulse
0
4.8
3.3
1.6
0.6
0.7
1.5
3.3
4.9
0.12
1.2
2
4
2.6
0
4.5
4.5
1.9
1.8
1.8
3.6
1.8
2
9
0
0
4.9
2.3
2.8
2.5
2.6
4
4.2
3
1.95
0
1.95
2.3
2.2
5.2
2
1.6
2.2
2.8
1.4
1.3
0
1.6
0
1.1
0
0.4
4.8
4.8
2.6
0
4.8
2.2
2.3
2.3
2.3
1.5
2.5
EE
PB
REC
MODE
PIN NO.
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
1
2
3
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
1.8
0.9
1.0
0
pulse
0.5
0
0.27
0.7
0.7
0.7
0.7
4.9
0
1.7
1.7
1.7
1.7
0
2.2
2.2
2.2
0
2.6
2.6
2.6
2.6
2.6
2.7
2.58
4.52
5.2
1.8
1.8
2.0
0.26
0.27
1.9
2.47
4.93
2.26
0
2.3
2.3
0
0.52
0.078
5.2
4.5
0
0
0
0
0
1.7
0.9
1
0
0
2.6
0
0.3
0.7
0.7
0.7
0.7
4.9
0
1.7
1.7
1.7
1.7
0
2.2
2.2
2.2
0
2.6
2.6
2.6
2.6
2.6
2.7
2.5
2.2
5.2
1.8
1.8
2.1
3.9
pulse
1.9
1.4
0
0
0
0
2.3
0
2.6
3.1
0
4.5
5.2
0
0
0
0
2.5
4.6
1
0
0
0
1.3
2
0.7
0.7
0.7
0.7
4.8
0
4
4
4
4
0
2.2
2.2
2.2
0
2.6
3.5
1.3
2.6
2.6
2.7
2.5
2.2
5.2
1.7
0
2
0.4
0.16
1.8
2.4
4.8
1.7
0
2.3
2.2
0
0
0.16
5.2
4.5
5.2
0
0
0
0
EE PB
REC
MODE
PIN NO.
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
0.18
0.26
5.2
5.2
4.8
4.8
0.21
5.18
3.1
0
0
0
0
0
0
0
0
0
0
pulse
pulse
5.2
pulse
5.2
0
0
4.9
4.7
5.1
5.1
5
3.58
2.8
5.1
0
0
0
5.2
5.2
0
0.3
0
0
1.36
0
0
0
0
3.3
5.2
0
0
0
pulse
0
0.18
0
5.2
5.2
0
4.8
0
0
0
0
4.8
0
0
0
0
0
pulse
0
0
0
0
0
0
5.2
0
0
0
0
5.1
0.2
5
3.5
pulse
5.1
0
5.2
5.2
5.2
0
0
5.1
0
0
1.3
0
0
0
0.15
3.3
5.2
2.5
2.7
3.5
pulse
pulse
0.16
0.16
5.2
5.2
0
4.8
2.3
0
0
0
4.8
0
0
0
5.1
0
0
0.1
0.1
0.26
0.26
5.1
0
0
0
0
0
4.7
5.1
5.1
5
3.6
0
0.2
5.1
0
5.2
5.2
5.2
0
5.1
0
1.6
1.3
0
2.5
0
0
3.3
0
2.5
2.7
3.6
2.8
3.1
EE PB
REC
MODE
PIN NO.
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
1
2
3
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
4.8
0
0
4.95
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
pulse
pulse
0.26
5.2
5.1
1.5
1.5
0
2.4
2.3
0.2
0
0
0
5.1
4.8
4.7
2.5
2.5
0
pulse
0.23
5.14
0
pulse
5.1
0
0
0
0
0
0
0
4.8
0
4.9
0
0
0
0
0
0
0
5.1
2.5
0
0
0
1.4
pulse
2.5
2.5
0
0
0
0
0
0
5.1
1.5
1.5
0
2.4
2.3
pulse
0
0
0
5.1
4.8
4.7
2.5
2.5
0
pulse
pulse
5.1
0
pulse
5.1
0
0
0
0
0
0
0
4.8
0
0
0
pulse
0
0
0
0
0
5.2
2.6
0
0.29
0
1.38
1.39
2.6
2.6
0
2.7
0
0
0
0
5.1
1.5
1.5
0
2.4
2.3
pulse
pulse
pulse
0
5.1
4.8
4.8
pulse
pulse
pulse
pulse
pulse
5.1
0
pulse
5.1
0
0
0
0
0
0
0
EE PB
REC
MODE
PIN NO.
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
1
2
3
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
2.8
2.8
0
5.1
4.2
0
2.8
0
0
0
2.8
2.8
2.5
2.4
0
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
0
3.87
0
0
6
6
0
6
6
4.57
3.82
3.86
3.87
3.87
0.8
0
3.84
3.86
0.79
3.87
3.87
3.86
12
0.6
0.63
0.63
0
0
2.8
2.8
0
5.1
4.2
0
2.8
0
0
0
2.8
2.8
2.5
2.4
0
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
0
3.87
0
0
6
6
0
6
6
4.5
3.8
3.8
3.8
3.8
0.8
0
3.8
3.8
0.7
3.8
3.8
3.8
12
0.6
0.6
0.6
0
0
2.8
2.8
0
5.1
4.2
0
2.8
0
0
0
2.8
2.8
2.6
2.4
0
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
3.8
0
3.8
0
0
6
6
0
6
6
4.5
3.8
3.8
3.8
3.8
0.8
0
3.8
3.8
0.8
3.9
3.9
3.9
12
4.2
4.2
4.2
4.2
0
IC751
IC801
EE PB
REC
MODE
PIN NO.
40
41
42
43
44
1
2
3
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
5
0
4.7
4.8
0
3
12
2.7
12
2.9
5.7
5.7
0
5.1
5.6
11.4
5.7
0
5.6
0.1
5.6
0
0
0
5.7
5.7
5.7
5.6
5.7
5.7
5.7
5.6
5.2
1.4
2.1
3.5
4.7
4.8
0
3.6
0.1
0.8
0
0.7
0.7
0.1
1.4
3.0
0
1.4
0.1
5.2
2.6
5
0.9
4.7
4.6
3.3
3.1
12
2.7
12
2.9
5.7
5.7
5.6
0
5.6
11.4
5.7
0
5.6
0.1
5.6
0
0
0
5.7
5.7
5.7
5.6
5.7
5.7
5.7
5.6
5.2
1.4
2.3
3.5
4.7
4.8
0
3.1
0.1
0.8
0
0.7
0.7
0.1
1.4
2.8
0
1.5
0.1
5.2
2.6
5
0.9
4.8
4.8
0.7
2.9
12
2.7
12
3
5.7
5.7
5.7
0
5.7
11.5
5.7
1.6
2.7
5.7
0
0
0
5.7
5.7
5.7
5.7
5.7
5.7
5.7
5.7
5.2
2.3
1.8
3.5
3.5
4.8
4.9
0
1.5
2.6
0.85
0
0.85
0.79
2.6
1.5
1.5
0
0
2.6
5.2
1.6
IC802
IC901
IC501