Circuit Voltage Chart - LG DP471B Service Manual

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CIRCUIT VOLTAGE CHART

MODE
MODE
STOP
PLAY
STOP
PIN NO.
PIN NO.
U9(SPHE8202T)
58
0.680
1
3.353
3.207
59
0.770
60
0.750
2
3.352
3.206
61
3.089
3
3.347
3.208
62
1.083
4
3.184
3.065
63
3.170
5
3.195
3.060
64
0.063
6
0.077
0
65
1.091
7
3.372
3.292
66
1.091
8
3.061
3.077
67
1.352
9
3.080
3.109
68
0.652
10
1.803
1.702
11
0.081
0
69
3.129
70
3.148
12
0.085
0
71
0.052
13
0.460
0.424
72
3.146
14
0.485
0.436
73
0.376
15
0.487
0.473
74
0.050
16
0.456
0.432
75
0.703
17
0.476
0.432
76
0.050
18
0.263
0.254
77
1.772
19
0.187
0.166
78
3.153
20
0.345
0.315
21
0.385
0.327
79
0.057
80
0.059
22
0.201
0.102
81
0.057
23
0.283
0.195
82
0.061
24
0.378
0.333
83
3.158
25
0.353
0.325
84
1.597
26
0.363
0.358
85
1.605
27
0.496
0.402
86
1.777
28
0.502
0.451
87
3.168
29
1.884
1.765
88
3.155
30
0.082
0
31
1.753
1.659
89
0.054
90
3.169
32
3.188
3.124
91
1.267
33
0.094
0.045
92
2.102
34
0.100
0.056
93
2.097
35
0.143
0.065
94
2.097
36
0.218
0.156
95
2.101
37
0.239
0.223
96
2.100
38
0.236
0.215
97
2.101
39
0.253
0.115
98
2.099
40
1.876
1.556
41
2.972
2.981
99
3.187
100
3.189
42
2.957
2.831
101
0.051
43
2.991
2.960
102
3.162
44
0.287
0.217
103
3.163
45
0.100
0.096
104
0.043
46
0.110
0.036
105
0.043
47
0.128
0.117
106
3.171
48
0.282
0.187
107
2.113
49
0.164
0.144
108
1.598
50
0.083
0.077
51
3.073
3.028
109
0.056
110
1.575
52
3.325
3.277
111
1.575
53
3.151
3.106
112
3.168
54
0.079
0
113
1.615
55
0.076
0
114
1.615
56
0.069
0
115
0.062
57
0.070
0
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MODE
MODE
PLAY
STOP
PLAY
PIN NO.
PIN NO.
0
116
3.192
3.113
40
0
117
3.191
3.123
41
0
118
0.062
0
42
3.027
19
3.193
3.122
43
1.010
120
0.583
0.563
44
3.103
121
3.159
3.123
45
0
122
3.151
3.114
46
1.014
123
3.303
3.258
47
1.011
124
0.126
0.057
48
1.275
125
1.379
1.321
49
0.639
126
1.419
1.213
50
3.102
127
1.478
1.233
51
3.108
128
3.325
3.112
52
0
53
U16(LD1117AL-1.8V)
3.107
54
1
0.058
0
0.357
55
2
1.819
1.749
0
56
3
3.248
3.196
0.673
57
4
1.819
1.750
0
58
U3(SPV518A)
1.705
59
1
0.000
0
3.102
60
2
0.057
0
0
61
3
1.501
1.258
0
62
4
1.072
1.021
0
63
5
3.329
3.283
0
64
6
0.055
0
3.108
7
1.548
1.491
1.533
8
1.068
1.002
1
1.552
9
2.066
2.001
2
1.704
10
3.324
3.276
3
3.120
11
3.325
3.279
4
3.101
12
3.324
3.277
5
0
13
1.678
1.521
6
3.121
14
1.688
1.479
7
0.994
15
0.054
0
8
2.020
16
0.232
0.172
9
2.035
17
3.324
3.277
10
2.032
18
0.052
0
11
2.092
19
1.813
1.742
12
2.085
20
1.889
0.832
13
2.064
21
0.105
0.047
14
2.060
22
0.062
0
15
3.174
23
1.543
1.645
16
3.167
24
1.687
1.658
17
0
25
1.746
1.703
18
2.338
26
1.397
1.356
19
3.114
27
0.623
0.608
20
0.173
28
0.685
0.620
21
0.173
29
3.322
3.278
22
3.120
30
0.052
0
23
2.048
31
0.691
0.623
24
1.533
32
0.684
0.614
25
0
33
3.324
3.278
26
1.572
34
0.053
0
27
1.532
35
0.093
0.020
28
3.123
36
1.266
1.195
1.376
37
0.197
0.153
1
1.610
38
1.877
1.842
2
0
39
1.242
1.845
3
3-53
MODE
STOP
PLAY
STOP
PLAY
PIN NO.
0.285
0.2
4
0.059
0
0.893
0.843
5
2.135
2.01
0.000
0
6
2.142
2.092
0.000
0
7
2.379
2.31
0.000
0
8
5.669
10.668
0.000
0
U6(UNICORN20-A)
1.814
1.742
1
5.062
4.920
0.052
0
2
5.060
4.948
3.323
3.274
3
1.050
5.051
0.000
0
4
1.049
1.048
0.000
0
5
2.081
2.008
0.000
0
6
1.684
1.669
0.000
0
7
5.669
7.292
0.000
0
8
5.669
7.176
2.934
3.115
9
5.669
5.863
2.933
3.063
10
5.669
5.737
2.933
3.089
11
1.388
1.404
1.689
1.623
12
1.353
1.361
1.697
1.658
13
0.052
0
0.052
0
14
0.669
8.471
3.327
3.282
15
3.434
3.28
0.052
0
16
5.669
8.447
3.326
3.283
17
4.354
5.367
1.707
1.586
18
4.735
6.356
0.569
0.556
19
3.368
3.228
U4(AM5888S)
20
3.352
3.235
U8(MX25L1636DM21-12G)
1.579
1.529
0.080
0.019
1
0.114
0
0.438
0.446
2
1.741
1.161
1.606
1.379
3
3.178
3.093
0.456
0.464
4
0.066
0
0.05
0
5
1.761
3.129
0.066
0
6
1.371
0.819
5.061
4.957
7
3.175
3.092
0.065
0
8
3.178
3.122
0.059
0
U12(EUA6019)
2.458
1.303
1
0.063
0
2.312
1.397
2
0.064
0
2.453
3.373
3
5.073
0.001
2.454
2.463
4
0.062
0
2.446
2.312
5
0.068
2.423
2.450
2.451
6
0.067
2.446
1.338
2.437
7
5.075
5.001
2.453
2.401
8
0.069
2.449
5.060
2.375
9
0.071
2.451
0.416
4.965
10
0.000
0
5.058
4.972
11
5.061
0.003
0
0
12
0.071
2.512
1.604
1.534
13
0.063
0
5.031
4.752
14
0.067
2.493
0.081
0.015
15
0.572
3.071
1.600
1.518
16
0.063
0
1.605
1.531
17
0.063
2.168
0.071
3.107
18
0.063
0
U5(UTC3308L)
19
5.018
4.559
2.954
2.875
20
0.062
0
1.504
1.411
21
3.435
3.278
1.141
1.035
22
5.057
0
3-54
MODE
MODE
STOP
PLAY
STOP
PIN NO.
PIN NO.
23
0.106
0.035
47
0.294
24
0.063
2.521
48
0.329
49
3.187
U13(APC558KC)
50
0.259
1
0.071
0
51
0.130
2
0.071
0
52
0.052
3
0.072
0
53
0.364
4
-8.281
-8.243
54
0.053
5
-8.015
-0.11
6
0.041
0
7
0.034
0
8
0.401
0.001
U15(M12L64164A-5TG)
1
3.185
3.041
2
0.425
0.960
3
3.185
3.053
4
0.423
0.549
5
0.037
0.607
6
0.478
0
7
0.325
0.263
8
3.188
0.503
9
0.352
3.044
10
0.365
0.575
11
0.169
0.667
12
0.057
0
13
0.383
0.325
14
3.188
3.029
15
1.843
2.517
16
3.045
2.962
17
2.962
2.956
18
3.101
2.980
19
0.057
0
20
0.271
0.213
21
0.069
0.033
22
0.108
0
23
0.107
0.025
24
0.152
0.036
25
0.170
0.137
26
0.139
0.145
27
3.195
3.075
28
0.056
0
29
0.216
0
30
0.297
0.1
31
0.195
0.140
32
0.241
0.132
33
0.125
0
34
0.073
0.027
35
0.064
0
36
0.033
0
37
3.186
3.056
38
1.762
1.712
39
1.627
2.369
40
0.033
0
41
0.053
0
42
0.592
0.873
43
3.186
3.056
44
5.415
0.873
45
5.277
0.616
46
0.053
0
PLAY
0.659
0.927
3.054
0.876
0.769
0
0.750
0
LGE Internal Use Only

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