LG 32LH2000 Service Manual page 23

23
23
22
D1101
22
30V
21
21 OPT
20
20
19
19
D1106
18
D1102 30V
18
30V OPT
17
17 OPT
16
16
15
15 D1103
30V R1104
14
14
OPT 75
13
13
R1105
12
12 0
11
D1104
11
R1101
30V
. 10
75
OPT
. 9
SC_ID 8
B
7
D1109
R1102
6
LIN 30V 75
OPT
GND 5
GND 4
3
L_OUT
2
R_IN
R_OUT 1
JK1100
L1102
BLM18PG121SN1D
D1105
5.6V
OPT
L1103
BLM18PG121SN1D
D1100
5.6V
OPT
SCART2 PIN 8
+12V/+15V
R1184
15K R1185
0
R1176
R1178
2K
10K
OPT
B
SC_RE1
1:AJ19
R1180
R1177
1K
560
OPT
C
B Q1116
SC_RE2
1:AJ19
2SC3052
R1181
R1179 1K E
680
19~22
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SCART
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+3.3V
R1124
4.7K
SCART1_DET
R1126
1K
D1110
C1113
5.6V 0.1uF
OPT 16V
E
ISA1530AC1
Q1119
@optio
SC1_CVBS_IN B
R1117
C1108
C1106 0 C
220pF
R1109
47pF
50V
75
50V
OPT
Q1120
2SC3052
GND
R1113
390
R1107
75 C1107
100uF
16V
22
R1114
SC1_FB
SC1_R
R1106
75
SC1_G
SC1_ID
R1118
D1111 62K R1123
SC1_B
30V 11K
OPT
R1110
10K
SC1_L_IN
L1101 C1103
120-ohm R1112
R1103 330pF
D1108
C1101
470K 50V 12K
5.6V
OPT
OPT
R1108
10K
SC1_R_IN
L1100
C1102
D1107 120-ohm
R1100 C1100
330pF R1111
5.6V
OPT 12K
470K
OPT 50V
R1135
0
TV_L_OUT
C1110
C1116
1000pF
4700pF
50V
R1160
0
TV_R_OUT
C1111
C1115
1000pF 4700pF
50V
R1191
2.2K
TV_L_OUT
R1187 C C1133
10uF
0
B Q1118
16V
2SC3052
+12V/+15V
R1186
E
12K R1188 R1143
26~52 51K 5.6K
19~22 SCART1_Lout
C
Q1117
C1126
2SC3052
R1144
0.1uF
5.6K
E 50V SCART1_Rout
REC_8 AI8
R1190
2.2K
R1186-*1
13K TV_R_OUT
19~22
C1134
10uF
16V
+12V/+15V
L1104
BLM18PG121SN1D
C1144 C1145
R1140 C1143
0.1uF
470 10uF 0.1uF
50V
35V 50V
23
23
R1174
47K
C1142
22
C 47uF
R1182
16V
0 21
B
FE_VSCART_OUT
20
E
19
R1175
15K
18
R1138
120
17
16
15
14
13
12
11
.
10
. 9
SC2_ID 8
2:E16
. 7
6
L_IN
GND 5
GND 4
3
L_OUT
R_IN 2
R_OUT 1
JK1101
2:S14
002:P7
002:P7
Audio Out Amp
IC1103
LM324D
R1196
1 14
2.2K
1 14
R1145 R1155
2 13
33K 33K
2 13
C1127
33pF 3 12 C1129 33pF
3 12
R1157
SCART2_Rout
4 11
5.6K
4 11
R1158
5 10 5.6K
5 10
SCART2_Lout
R1146 R1156
6 9
33K 33K
6 9
C1128 33pF 7 8 R1130 33pF
7 8
R1197
2.2K
+3.3V
R1159
1K
C1105
0.1uF
16V
R1133
0 C1125
C1119
220pF
R1139
47pF
50V
22 D1112 75
50V
OPT
30V
21 OPT
20
R1136
75
19
18 C1122
D1115
100uF
30V
17 16V
OPT
16
15
14
13
12
11
R1137
75
D1118
30V
OPT
L1108
BLM18PG121SN1D R1164
0
C1112
1000pF
D1114 50V
5.6V
OPT
L1107
BLM18PG121SN1D R1163
0
C1114
1000pF
D1113 50V
5.6V
OPT
Scart Audio Mute
TV_L_OUT
Q1126 R1149
2SC3052
2K
DTV/MNT_R_OUT
C1135
10uF
TV_R_OUT
16V
R1151
Q1127
2K
2SC3052
DTV/MNT_L_OUT
Q1128 R1150
2SC3052
2K
DTV/MNT_L_OUT
C1136 DTV/MNT_R_OUT
10uF
16V
R1152
Q1129
2K
2SC3052
+12V/+15V
L1109
BLM18PG121SN1D
SCART2_DET
C1141
C1104 C1139
0.1uF
10uF 0.1uF
35V 50V 50V
E
R1162
@optio
470
ISA1530AC1
Q1109 B
SC2_CVBS_IN
C
R1166
47K
Q1111
C1109
2SC3052 C 47uF
16V
B
DTV/MNT_VOUT
R1131
E
390
R1167
15K
R1161
120
R1134
0
REC_8
R1125
62K
SC2_ID
R1132
11K
L1105
120-ohm R1121
10K
SC2_L_IN
C1120
D1116 C1123
R1116
OPT
5.6V 330pF
470K
50V
OPT
L1106
R1128
120-ohm
10K
SC2_R_IN
C1124
C1121
D1117 R1115
OPT 330pF
5.6V
470K 50V
OPT
DTV/MNT_L_OUT
C1117
4700pF
DTV/MNT_R_OUT
C1118
4700pF
+3.3V +3.3V_ST
R1141
R1119
R1120
10K
10K
10K
D1120
Q1130 ENKMC2838-T112
A1
RT1P141C-T112
SB_MUTE
C
A2
3 1
SCART1_MUTE
C1131
2
0.1uF
D1119
RT1P141C-T112
ENKMC2838-T112
A1
Q1131
SB_MUTE
C
A2
3
1 SCART2_MUTE
C1132
2
0.1uF
EAX60686904 2009.03.25
9 11
SCART
LGE Internal Use Only