Read LG 47LH55 (CHASSIS:LA92B) Service Manual online
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.
DSUB_B
001:D28
0
R1305
COMP1_L_IN
001:R32
DSUB_G
001:D29
18pF
50V
C1222
470K
R1247
0
OPT
R1268
4.7K
R1249
PC_L_IN
001:R32
470K
R1245
OPT
C1216
COMP2_L_IN
001:R33
COMP1_R_IN
001:R32
12K
R1263
10K
R1270
75
R1238
BG2012B080TF
L1208
+5V_ST
100pF
OPT
C1227
COMP2_DET
001:AR23
75
R1243
VGA_EEPROM_WP
001:AR22
12K
R1264
10K
R1251
12K
R1294
R1294
75
R1286
1K
R1283
0
R1232
12K
R1255
R1255
0.1uF
16V
C1228
75
R1242
+3.3V
OPT
C1218
10K
R1252
12K
R1303
DSUB_DET
SIDEAV_R_IN
001:R33
100pF
50V
C1240
COMP2_R_IN
001:R33
75
R1235
100pF
50V
C1224
SIDEAV_CVBS_IN
001:D26
10K
R1291
ISP_TXD
001:AB27;001:AR31
SIDEAV_L_IN
001:R33
0
R1233
100
R1269
10K
R1259
1K
R1240
470K
R1298
COMP1_PB
001:D27
1000pF
50V
C1237
10K
R1301
ENKMC2838-T112
D1223
A1
C
A2
10K
R1277
1K
R1271
+3.3V
75
R1236
SIDEAV_DET
001:AR23
1000pF
50V
C1238
BG2012B080TF
L1207
10K
R1262
+3.3V
COMP2_PB
001:D31
BG2012B080TF
L1206
ISP_RXD
001:AB27
1000pF
50V
C1221
+5V_GENERAL
10K
R1292
470K
R1246
AT24C02BN-10SU-1.8
IC1200
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
10K
R1258
22
R1257
OPT
C1217
12K
R1256
R1256
470K
R1244
470K
R1289
10K
R1300
DSUB_VSYNC
001:D29
100pF
C1219
PC_R_IN 001:R31
1000pF
50V
C1220
100pF
50V
C1225
COMP2_PR
001:D31
COMP1_Y
001:D27
22
R1265
75
R1234
4.7K
R1253
0
R1307
470K
R1290
PEJ024-01
JK1205
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
COMP1_PR
001:D28
18pF
50V
C1223
100pF
50V
C1241
COMP2_Y
001:D31
12K
R1293
R1293
COMP1_DET
001:AR23
PPJ218-01
JK1202
5C
[RD]CONTACT
2C
[RD]U_CAN
4C
[RD]O_SPRING
2B
[WH]U_CAN
3B
[WH]C_LUG
2A
[YL]U_CAN
5A
[YL]CONTACT
4A
[YL]O_SPRING
75
R1287
DSUB_R
001:D29
1K
R1254
75
R1288
DSUB_HSYNC
001:D29
12K
R1304
10K
R1237
470K
R1297
75
R1241
100pF
50V
C1251
10K
R1204
75
1%
R1215
47pF
50V
C1252
12K
R1207
AV_CVBS_IN
001:D26
12K
R1210
AV_R_IN
AV_L_IN
100pF
50V
C1250
470K
R1208
+3.3V
470K
R1206
10K
R1205
10K
R1211
BG2012B080TF
L1217
BG2012B080TF
L1218
10K
R1248
AV_CVBS_DET
001:AR23
1K
R1212
100pF
50V
OPT
C1206
KCN-DS-1-0089
JK1201
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OPT
D610
+3.3V
+5V_GENERAL
0.1uF
50V
C660
F i b e r O p t i c
JST1223-001
JK601
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
1K
R638
SPDIF_OUT
001:W29
ADMC5M03200L_AMODIODE
5.6V
D1211
ZENER
ADMC5M03200L_AMODIODE
5.6V
D1212
ZENER
ADMC5M03200L_AMODIODE
5.6V
D1213
ZENER
ADMC5M03200L_AMODIODE
5.6V
D1214
ZENER
ADMC5M03200L_AMODIODE
5.6V
D1220
ADMC5M03200L_AMODIODE
5.6V
D1221
ADMC5M03200L_AMODIODE
5.6V OPT
D1222
ADMC5M03200L_AMODIODE
5.6V
OPT
D1224
ADMC5M03200L_AMODIODE
5.6V
D1225
ADMC5M03200L_AMODIODE
5.6V
D1229
ZENER
ADMC5M03200L_AMODIODE
5.6V
D1230
ZENER
ADMC5M03200L_AMODIODE
5.6V
D1231
ADMC5M03200L_AMODIODE
5.6V OPT
D1234
ADMC5M03200L_AMODIODE
5.6V OPT
D1235
ADMC5M03200L_AMODIODE
5.6V
D1242
Z E
N E
R
ADMC5M03200L_AMODIODE
5.6V
D1243
Z E
N E
R
ADUC30S03010L_AMODIODE
30V
D1207
Z E
N E
R
ADUC30S03010L_AMODIODE 30V
D1208
ZENER
ADUC30S03010L_AMODIODE 30V
D1209
ZENER
ADUC30S03010L_AMODIODE 30V
D1210
ZENER
ADUC30S03010L_AMODIODE
30V
D1215
ZENER
ADUC30S03010L_AMODIODE
30V
D1216
Z E
N E
R
ADUC30S03010L_AMODIODE
30V
D1217
Z E
N E
R
ADUC30S03010L_AMODIODE
30V
D1218
Z E
N E
R
ADUC30S03010L_AMODIODE
30V
D1219
Z E
N E
R
ADUC30S03010L_AMODIODE 30V
D1226
ZENER
ADUC30S03010L_AMODIODE 30V
D1227
ZENER
ADUC30S03010L_AMODIODE 30V
D1228
ZENER
ADUC30S03010L_AMODIODE
30V
D1245
Z E
N E
R
PPJ227-01
JK1206
9
N
[GN]E-LUG
5
K
[GN]O-SPRING-L
6
K
[GN]CONTACT-L
4
E
[GN]O-SPRING-S
3
E
[GN]CONTACT-S
9
M
[BL]E-LUG
7
J
[BL]C-LUG-L
8
D
[BL]C-LUG-S
9L
[YL]E-LUG
4
L
[YL]O-SPRING-S
3
L
[YL]CONTACT-S
7
H
[RD]C-LUG-L
8
C
[RD]C-LUG-S
9
G
[WH]E-LUG
8
M
[WH]C-LUG-S_1
7
G
[WH]C-LUG-L
8
B
[WH]C-LUG-S_2
9
F
[RD]E-LUG
4
N
[RD]O-SPRING-S_1
3
N
[RD]CONTACT-S_1
5
F
[RD]O-SPRING-L
6
F
[RD]CONTACT-L
4
A
[RD]O-SPRING-S_2
3
A
[RD]CONTACT-S_2
0.33uF
C1229
100K
R1273
4.7K
R1279
R1279
100
OPT
R1284
47pF
50V
C1243
DBG_RX
0
R1276
220pF
50V
C1235
0.1uF
C1230
4.7K
R1278
R1278
30V
OPT
D1237
ADUC30S03010L
0.1uF
C1231
100K
R1272
100
R1282
100
OPT
R1285
0
R1275
0.1uF
16V
C1234
BLM18PG121SN1D
L1209
220
R1299
0.1uF
C1232
220
R1302
3.3K
R1274
KCN-DS-1-0088
JK1203
1
2
3
4
5
6
7
8
9
10
0.1uF
C1233
MAX3232CDR
IC1201
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
47pF
50V
C1242
100
R1281
+3.3V_ST
+5V_ST
IR
30V
OPT
D1236
ADUC30S03010L
2SC3052
Q1200
E
B
C
DBG_TX
220pF
50V
C1239
ADMC5M03200L_AMODIODE
5.6V
D1244
3.3K
OPT
R1218
2SC3052
OPT
Q1201
E
B
C
+5V_ST
0
R1216
10K
OPT
R1217
AV
COMPONENT1
SIDE_AV
COMPONENT2
PC AUDIO
Neet to pull up 3.3V
RGB PC
SPDIF OPTIC JACK
COMPONENT1/2,AV1
TxD
Serial Port
RxD
male
RS-232C
C
2009
IN / OUT
Click on the first or last page to see other 47LH55 (CHASSIS:LA92B) service manuals if exist.