Circuit Voltage Chart - LG MCD206 Service Manual

CIRCUIT VOLTAGE CHART

1. IC VOLTAGE CHECK LIST
PIN NO. TEST VOLT(V) PIN NO.
IC301(PT6324) 45
1 3.26 46
2 3 47
3 3 48
4 3 49
5 0.26 50
6 0.26 51
7 2.67 52
8 GND IC811(XC6214-3.3V)
9 4.45 1
10 -17 2
11 -21 3
12 -18 IC901(STR-W6757)
13 -21 1
14 -21 2
15 -19 3
16 -23 4
17 -27 5
18 -27 6
19 -27 7
20 -21 IC902(STR-A6252)
21 -25 1
22 -27 2
23 -27 3
24 -23 4
25 -27 5
26 -21 6
27 -29 7
28 -31 8
29 -31 IC924(7805)
30 -31 1
31 -31 2
32 -31 3
33 -31 IC947(KA78R12)
34 -31 1
35 -29 2
36 -29 3
37 -30 4
38 -30 IC955(KA278R33)
39 -30 1
40 -30 2
41 -30 3
42 -30 4
43 -30 IC957(KA278R05)
44 -30 1
TEST VOLT(V) PIN NO. TEST VOLT(V)
-30 2 5
-30 3 0
-30 4 2.35
-30 U601(PS9831)
-31 1 GND
-31 2 0
4.5 3 1.9
GND 4 3.4
5 GND
GND 6 1.8
4.5 7 GND
3.3 8 0
9 GND
296 10 3.4
0.02 11 2.55
0.02 12 2.53
20.28 13 1.8
0.11 14 GND
1.4 15 2.55
0.63 16 2.55
17 2.55
0.01 18 2.55
4.07 19 1.65
0 20 1.65
1.56 21 GND
15.88 22 3.4
0 23 1.45
296 24 0.15
296 25 0.15
26 1.45
12 27 0.13
0 28 GND
5 29 3.4
30 1.7
14.8 31 1.7
12 32 1.7
0 33 0.16
2.35 34 1.8
35 GND
5 36 1.73
3.5 37 1.73
0 38 GND
2.35 39 3.4
40 0
6.37 41 0.02
PIN NO. TEST VOLT(V) PIN NO.
42 1.8 87
43 GND 88
44 GND 89
45 0 90
46 0 91
47 3.4 92
48 1.7 93
49 1.7 94
50 GND 95
51 1.7 96
52 1.7 97
53 GND 98
54 1.7 99
55 1.7 100
56 3.4 U602(AK5358A)
57 GND 1
58 1.7 2
59 1.7 3
60 GND 4
61 1.7 5
62 1.7 6
63 GND 7
64 GND 8
65 3.4 9
66 1.8 10
67 1.7 11
68 1.7 12
69 GND 13
70 1.7 14
71 1.7 15
72 3.4 16
73 GND U603(MC4580)
74 1.7 1
75 1.7 2
76 3.4 3
77 3.4 4
78 3.3 5
79 3.3 6
80 1.8 7
81 GND 8
82 GND U604(BU4052)
83 GND 1
84 GND 2
85 GND 3
86 1.7 4
3-29 3-30
TEST VOLT(V) PIN NO. TEST VOLT(V)
1.7 5 0
1.7 6 GND
1.7 7 -6
1.28 8 GND
1.8 9 GND
GND 10 0
1.69 11 0
3.4 12 0
GND 13 0
3.3 14 0
GND 15 0
GND 16 6
GND U701(TAS5342A)
GND 1 12
2 3.2
2.73 3 GND
2.73 4 GND
GND 5 3.2
2.73 6 1.72
GND 7 3.3
4.7 8 1.72
3.49 9 1
GND 10 GND
2.58 11 GND
1.66 12 3.2
1.36 13 GND
1.66 14 GND
3.3 15 GND
0 16 1.72
GND 17 3.3
GND 18 1.72
19 GND
0 20 GND
0 21 12
0 22 12
-12 23 12
0 24 26
0 25 GND
0 26 31
12 27 31
28 15
0 29 GND
0 30 GND
0 31 15
0 32 31
PIN NO. TEST VOLT(V)
33 26
34 26
35 31
36 15
37 GND
38 GND
39 15
40 31
41 31
42 GND
43 26
44 12
U801(BU9543KV)
1 3.3
2 1.7
3 1.65
4 1.65
5 GND
6 1.68
7 1.68
8 0.25
9 2.42
10 1.65
11 1.65
12 1.68
13 1.73
14 1.67
15 1.74
16 1.93
17 3.3
18 3.3
19 0.22
20 3.3
21 3.3
22 0.66
23 0.01
24 3.3
25 1.65
26 1.8
27 GND
28 1.65
29 1.65
30 3.3
31 1.8
32 GND