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RH178H
Service manual
Circuit Voltage Chart - LG RH178H Service Manual
Hdd/dvd recorder
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:
Service manual
(56 pages)
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Owner's manual
(59 pages)
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Contents
Table of Contents
Troubleshooting
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CIRCUIT VOLTAGE CHART
MODE
MODE
MODE
STATE
STATE
STATE
PIN NO.
PIN NO.
PIN NO.
LIC101
22
1.57
77
2.19
1
3.29
23
1.33
78
2.19
2
0.00
24
1.10
79
2.16
3
3.28
25
1.33
80
4.98
4
0.00
26
0.00
81
2.18
5
4.99
27
0.00
82
2.96
6
0.00
28
3.30
83
2.14
7
0.00
29
0.00
84
2.79
8
4.98
30
0.00
85
2.21
9
0.00
31
0.00
86
2.49
10
4.99
32
0.00
87
2.85
11
0.00
33
0.00
88
2.20
12
0.00
34
0.00
89
2.16
13
0.00
35
3.20
90
2.19
14
4.99
36
3.29
91
2.19
15
0.00
37
0.00
92
2.19
16
1.09
38
0.00
93
1.68
17
3.28
39
0.00
94
1.67
18
0.00
40
0.00
95
2.37
19
4.99
41
1.61
96
2.37
20
0.00
42
3.29
97
2.19
21
0.00
43
3.30
98
2.19
22
0.00
44
0.00
99
1.62
23
0.00
45
0.00
100
1.49
24
0.00
46
0.00
101
1.44
25
0.00
47
0.00
102
0.00
26
0.00
48
0.00
103
1.65
27
0.00
49
0.00
104
1.65
28
4.97
50
0.00
105
1.65
29
0.00
51
0.00
106
1.65
30
3.29
52
0.00
107
1.65
31
0.36
53
4.96
108
1.65
32
0.00
54
1.23
109
0.00
LIC121
55
1.65
110
0.00
1
0.00
56
1.62
111
4.96
2
0.00
57
1.65
112
0.00
3
1.69
58
0.61
113
1.65
4
1.64
59
3.29
114
1.65
5
1.66
60
0.00
115
4.96
6
2.67
61
0.00
116
1.65
7
2.60
62
0.00
117
1.65
8
0.00
63
2.95
118
0.00
9
0.00
64
3.29
119
0.00
10
1.65
65
1.21
120
1.65
11
0.00
66
1.34
121
1.66
12
0.25
67
1.16
122
0.00
13
1.58
68
1.34
123
0.00
14
1.82
69
1.35
124
2.51
15
2.20
70
0.50
125
0.81
16
3.29
71
0.70
126
2.50
17
1.65
72
0.00
127
0.00
18
1.56
73
2.03
128
2.50
LIC201
19
0.00
74
2.03
20
2.50
75
2.14
1
1.65
21
1.42
76
0.30
2
1.19
MODE
MODE
MODE
STATE
STATE
STATE
PIN NO.
PIN NO.
PIN NO.
PIN NO.
3
1.64
58
1.17
113
0.00
4
1.18
59
0.00
114
4.96
5
1.65
60
3.27
115
3.28
6
1.19
61
1.65
116
3.25
7
0.14
62
1.65
117
0.00
8
0.00
63
1.06
118
PULSE
9
3.30
64
0.00
119
PULSE
10
1.65
65
0.20
120
PULSE
11
1.65
66
1.65
121
PULSE
12
0.00
67
0.00
122
PULSE
13
1.50
68
1.69
123
PULSE
14
2.19
69
1.52
124
PULSE
15
3.30
70
1.65
125
PULSE
16
0.27
71
5.00
126
PULSE
17
0.27
72
1.23
127
PULSE
18
0.23
73
1.63
128
PULSE
19
0.00
74
1.60
129
PULSE
20
0.25
75
1.50
130
PULSE
21
0.00
76
0.61
131
PULSE
22
1.43
77
3.28
132
PULSE
23
1.57
78
0.00
133
PULSE
24
0.00
79
3.26
134
0.00
25
2.01
80
2.80
135
1.17
26
3.29
81
2.14
136
3.29
27
3.28
82
2.67
137
3.29
28
2.24
83
0.00
138
3.29
29
1.73
84
1.17
139
3.29
30
1.29
85
3.27
140
3.29
31
2.02
86
2.82
141
2.68
32
2.03
87
2.20
142
3.28
33
3.28
88
2.40
143
0.00
34
0.85
89
2.70
144
0.00
35
0.00
90
2.20
145
0.00
36
3.28
91
2.70
146
PULSE
37
0.00
92
2.20
147
PULSE
38
0.00
93
2.20
148
PULSE
39
2.95
94
2.20
149
PULSE
40
0.00
95
0.00
150
0.00
41
0.00
96
3.28
151
3.29
42
0.00
97
2.20
152
PULSE
43
0.00
98
2.18
153
PULSE
44
0.00
99
2.18
154
PULSE
45
0.00
100
2.17
155
PULSE
46
3.29
101
0.00
156
PULSE
47
3.29
102
3.27
157
PULSE
48
0.00
103
2.15
158
PULSE
49
0.00
104
0.00
159
PULSE
50
0.00
105
3.27
160
PULSE
51
0.00
106
0.00
161
PULSE
52
0.70
107
4.96
162
PULSE
53
0.00
108
0.00
163
PULSE
54
0.00
109
4.96
164
PULSE
55
3.29
110
0.00
165
PULSE
56
0.56
111
1.66
166
PULSE
57
0.00
112
0.00
167
PULSE
MODE
MODE
MODE
MODE
STATE
STATE
STATE
PIN NO.
PIN NO.
PIN NO.
168
PULSE
6
PULSE
10
169
PULSE
7
3.29
11
170
PULSE
8
PULSE
12
171
PULSE
9
PULSE
13
172
PULSE
10
0.00
14
173
PULSE
11
PULSE
15
174
PULSE
12
PULSE
16
PULSE
175
0.00
13
3.29
17
PULSE
176
3.29
14
PULSE
18
PULSE
177
PULSE
15
PULSE
19
PULSE
178
PULSE
16
PULSE
20
PULSE
179
PULSE
17
PULSE
21
PULSE
180
PULSE
18
0.00
22
PULSE
181
PULSE
19
PULSE
23
PULSE
182
PULSE
20
PULSE
24
PULSE
183
PULSE
21
PULSE
25
PULSE
184
PULSE
22
PULSE
26
PULSE
185
PULSE
23
PULSE
27
0.00
186
PULSE
24
PULSE
28
PULSE
187
PULSE
25
3.28
29
PULSE
188
PULSE
26
0.00
30
PULSE
189
PULSE
27
PULSE
31
PULSE
190
PULSE
28
PULSE
32
PULSE
191
PULSE
29
PULSE
33
PULSE
192
1.17
30
PULSE
34
PULSE
193
PULSE
31
PULSE
35
PULSE
194
PULSE
32
PULSE
36
PULSE
195
PULSE
33
PULSE
37
196
PULSE
34
PULSE
38
PULSE
197
PULSE
35
PULSE
39
PULSE
198
PULSE
36
PULSE
40
PULSE
37
PULSE
41
PULSE
199
PULSE
200
PULSE
38
3.29
42
PULSE
201
PULSE
39
PULSE
43
PULSE
202
PULSE
40
PULSE
44
PULSE
203
3.28
41
0.00
45
PULSE
204
0.00
42
PULSE
46
0.00
205
3.26
43
PULSE
47
206
3.26
44
3.29
48
PULSE
LIC271
207
0.00
45
PULSE
208
0.00
46
PULSE
1
3.28
209
0.00
47
0.00
2
4.99
210
OSC
48
PULSE
3
0.00
211
OSC
49
PULSE
4
0.00
212
3.28
50
0.00
5
3.00
LIC262
LIC301
213
0.00
214
0.00
1
PULSE
1
-
215
0.00
2
PULSE
2
-
216
3.28
3
PULSE
3
12.65
LIC261
4
PULSE
4
1.65
1
3.29
5
PULSE
5
1.65
2
PULSE
6
PULSE
6
0.58
3
PULSE
7
PULSE
7
11.80
4
0.00
8
PULSE
8
12.64
5
PULSE
9
PULSE
9
0.00
4-48
4-49
STATE
10
0.00
11
-
12
12.65
13
-
14
0.00
15
0.00
16
-
17
12.65
18
12.65
19
4.99
20
4.98
21
4.99
22
4.98
23
4.98
24
4.98
25
4.98
26
1.65
27
0.00
28
5.00
29
1.69
30
1.52
31
12.64
32
12.64
33
12.64
34
0.00
35
0.00
36
0.00
37
0.37
38
1.09
39
1.10
40
1.11
41
0.00
42
1.65
43
4.99
44
0.00
45
0.00
46
1.65
47
1.62
48
4.99
49
0.32
50
0.33
51
0.32
52
0.32
53
0.32
54
0.33
LIC401
1
4.99
2
0.79
3
0
4
1.17
5
3.29
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Chapters
Section 1 Summary
3
Section 2 Cabinet & Main Chassis
9
Section 3 Electrical
13
Section 4 Rs-01A Loader Part
62
Table of Contents
Troubleshooting
HDR PART
14
ELECTRICAL TROUBLESHOOTING GUIDE
63
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