LG 32LH200H (CHASSIS:LD91Y) Service Manual ▷ View 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.
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.
330pF
50V
50V
C1103
SCART1_DET
SC1_G
SC1_CVBS_IN
SC1_R_IN
SC1_ID
SC1_B
SC1_L_IN
220pF
50V
50V
C1108
OPT
SC1_FB
100uF
16V
C1107
330pF
50V
C1102
SC1_R
+3.3V
11K
R1123
30V
OPT
D1101
30V
OPT
OPT
D1102
30V
OPT
D1103
30V
OPT
D1104
30V
OPT
OPT
D1106
30V
OPT
D1109
30V
OPT
D1111
5.6V
OPT
OPT
D1100
5.6V
OPT
OPT
D1105
5.6V
OPT
D1107
5.6V
OPT
OPT
D1108
62K
R1118
120-ohm
L1100
120-ohm
L1101
2SC3052
Q1120
E
B
C
BLM18PG121SN1D
L1104
+12V/+15V
0 . 1 u F
50V
C1144
TV/DTV_VOUT
47uF
16V
C1142
0 . 1 u F
50V
C1145
ISA1530AC1
Q1119
E
B
C
SCART1_Rout
+12V/+15V
LM324D
IC1103
3
3
2
2
4
4
1
1
6
6
5
5
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
TV/DTV_L_OUT
SCART1_Lout
TV/DTV_R_OUT
TV/DTV_L_OUT
2SC3052
Q1127
RT1P141C-T112
Q1130
1
2
3
2SC3052
Q1126
TV/DTV_R_OUT
TV/DTV_L_OUT
TV/DTV_R_OUT
0 . 1 u F
50V
50V
C1126
0
R1182
0
R1117
0
R1105
0 . 1 u F
16V
16V
C1113
0 . 1 u F
C1131
10K
R1147
10K
R1108
10K
R1110
10K
R1148
12K
R1111
12K
R1112
15K
R1175
1K
R1126
2.2K
R1191
2.2K
R1190
22
R1114
2K
R1151
2K
R1149
33K
R1146
33K
R1145
33pF
C1128
33pF
C1127
4.7K
R1124
470
R1140
470K
OPT
R1192
470K
R1103
470K
R1100
470K
OPT
R1193
47K
R1174
47pF
50V
50V
C1106
5.6K
R1144
5.6K
R1143
75
R1109
75
R1106
75
R1104
75
R1102
75
R1101
OPT
C1101
OPT
C1100
JK1100
1
R_OUT
2
R_IN
3
L_OUT
4
GND
5
GND
6
LIN
7
B
8
SC_ID
9
.
10
.
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
23
23
22
22
75
R1107
390
R1113
120
R1138
10uF
16V
C1134
10uF
16V
C1133
BLM18PG121SN1D
L1102
BLM18PG121SN1D
L1103
1000pF
50V
50V
C1110
1000pF
50V
50V
C1111
0
R1135
0
R1160
+3.3V
10K
R1120
SCART1_MUTE
10uF
35V
C1143
5.6V
OPT
D1110
4700pF
C1116
4700pF
C1115
M41T81
IC903
3
VBAT
2
XO
4
VSS
1
XI
5
SDA
6
SCL
7
IRQ/FT/OUT/SQW
8
VCC
BATTERY
BA900
1
2
22
R918
0 . 1 u F
16V
16V
C905
CLOCK_SCL
EAW39040101
32.768KHz
X900
4.7K
R919
1K
R909
+5V_ST
22
R917
2pF
50V
50V
C903
CLOCK_SDA
2pF
50V
50V
C904
RTC_INT
CB3216PA501E
L400
10K
R471
22uF
16V
16V
C442
56K
R475
4.7K
R479
EXT_12V
EXT5V_CTRL
470pF
50V
50V
C443
P_12V
22uF
16V
16V
C440
4.7K
R476
P_12V
1uF
16V
16V
C438
1K
R474
2SC3875S(ALY)
Q400
E
B
C
EXT_PWR_DET
10K
R480
EXT12V_CTRL
0 . 1 u F
50V
50V
C441
MP5000DQ
IC407
3
ENABLE/FAULT
2
DV/DT
4
I-LIMIT
1
GND
5
NC
6
SOURCE_1
7
SOURCE_2
8
SOURCE_3
9
SOURCE_4
10
SOURCE_5
11
VCC
+5V_ST
+5V_ST
0 . 4 7 u F
25V
C444
1K
R470
MP2305DS
IC406
3
SW
2
IN
4
GND
1
BS
5
FB
6
COMP
7
EN
8
SS
0 . 0 1 u F
50V
50V
C439
22uF
16V
16V
C436
12.4K
R473
D429
A1
C
A2
100K
OPT
R478
2700pF
50V
C437
2SC3875S(ALY)
Q401
E
B
C
1K
R477
CB3216PA501E
L401
0 . 1 u F
50V
50V
C435
22UH
L402
EXT_5V
43
R472
9 1 2
SCART
S c a r t A u d i o M u t e
Audio Out Amp
REAL TIME CLOCK
SCART
5V/12V EXT PowerOut
EAX61527901
LP91Y xxLH200H-ZA
2 0 0 9 . 1 0 . 0 8
SCART
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.
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.
+5V_GENERAL
+3.3V_TUNER
+5V_GENERAL
FE_BOOSTER_CTL
/FE_RESET
FE_TS_DATA[0-7],FE_TS_CLK,FE_TS_VAL,FE_TS_SYN
FE_DEMOD_SDA
+1.2V_TUNER
2SC3052
Q1200
E
B
C
FE_AGC_SPEED_CTL
FE_TS_ERR
2SC3052
Q1203
E
B
C
+3.3V_TUNER
FE_TUNER_SDA
FE_SIF
+5V_TUNER
FE_DEMOD_SCL
FE_TUNER_SCL
FE_TS_VAL
NL17SZ08DFT2G
IC1201
3
2
4
1
5
FE_TS_ERR
+3.3V_TUNER
FE_TS_VAL_ERR
GND
FE_TS_VAL
FE_VMAIN
+5V_GENERAL
MLB-201209-0120P-N2
L1202
MLB-201209-0120P-N2
L1201
MLB-201209-0120P-N2
L1204
47uF
16V
16V
C1212
0
R1238
200
R1241
200
R1240
1K
OPT
R1239
0
R1205
47
R1208
47
R1207
47pF
50V
50V
C1205
OPT
47pF
50V
50V
C1206
OPT
0 . 1 u F
16V
C1220
0 . 1 u F
16V
16V
C1215
ISA1530AC1
Q1201
E
B
C
ISA1530AC1
Q1205
E
B
C
ISA1530AC1
Q1202
E
B
C
68uF
10V
10V
C1209
0
R1223
0 . 0 1 u F
25V
25V
C1222
0 . 1 u F
16V
16V
C1208
OPT
0 . 1 u F
16V
16V
C1210
0 . 1 u F
16V
C1219
0 . 1 u F
16V
16V
C1214
0 . 1 u F
16V
C1227
0.1uF
16V
C1200
0 . 1 u F
16V
C1221
10
R1229
100
R1224
100K
R1225
100pF
50V
C1216
100pF
50V
50V
C1207
10K
R1209
10K
R1231
10K
R1232
2.2K
R1230
33
R1222
33
R1221
4.7K
R1226
47
R1213
47
R1218
47
R1211
47
R1210
47
R1219
47
R1216
47
R1220
47
R1217
47
R1214
47
R1212
47
R1215
47
R1245
470
R1227
47pF
50V
50V
C1217
47pF
50V
50V
C1218
82
R1228
TDFW-G235D
TUNER
TU1200
1
ANT[5V]
2
BB[CTR]
3
GND_1
4
+B[5V]
5
NC_1
6
RF_AGC
7
TP[VT]
8
NC_2
9
GND_2
10
SDA_T
11
SCL_T
12
AIF_1
13
NC_3
14
GND
15
VIDEO
16
NC_4
17
S I F
18
SDA
19
SCL
20
RST
21
3.3V
22
1.2V
23
ERR
24
MCL
25
D7
26
D6
27
D5
28
D4
29
D3
30
D2
31
D1
35
SHIELD
32
D0
33
VAL
34
SYNC
MLB-201209-0120P-N2
L1203
+5V_TUNER
0 . 1 u F
16V
16V
C1223
FE_TS_DATA[5]
FE_TS_DATA[6]
FE_TS_DATA[1]
FE_TS_DATA[0]
FE_TS_DATA[3]
FE_TS_CLK
FE_TS_DATA[2]
FE_TS_DATA[4]
FE_TS_SYN
FE_TS_DATA[7]
FE_TS_VAL
Tuner PLL : 0xC2
Analog Tuner : 0x86
Digital Tuner : 0x1E
1 0 1 2
TUNER
OPTION : RF AGC
DVB-CI DETECT
DVB-T/C : 1.2V(MICRONAS demod)
DVB-T : 1.8V(INTEL demod)
2 0 0 9 . 0 6 . 0 9
EAX61527901
LP91Y xxLH200H-ZA
UNER
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.
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.
LVB_3M
LVB_0M
LVB_1P
LVB_2M
LVB_CKP
LVB_CKM
LVB_4P
LVB_0P
LVB_2P
PANEL_POWER
LVB_1M
LVB_4M
LVB_3P
LVA_CKM
LVA_3P
LVA_0P
LVA_4M
LVA_2M
LVA_0M
LVA_1M
LVA_2P
LVA_1P
LVA_3M
LVA_CKP
LVA_4P
3.3K
OPT
R1370
0
LVDS_SEL_GND
R1379
0
BIT_SEL_GND(8bit)
R1371
22
R1366
22
R1365
LVDS_SEL
22
OPT
R1367
0
OPT
R1373
BIT_SEL
LVB_CKP
LVB_CKM
LVB_1M
LVB_0M
LVB_3M
LVB_2M
LVB_0P
LVB_3P
LVB_2P
LVB_1P
LVA_2P
LVA_3P
LVA_2M
LVA_3M
LVA_CKP
LVA_CKM
LVA_1M
LVA_1P
LVA_0M
LVA_0P
+3.3V
OPC_EN
OPC_OUT
PWM_DIM
+3.3V
+3.3V
BLM18PG121SN1D
L1300
0 . 1 u F
16V
C1300
OPT
R1313
OPT
R1315
OPT
R1312
OPT
R1314
1000pF
50V
C1301
TF05-51S
P1301
FHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
FF10001-30
LVDS_HD_19~22"
P1300
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
FF10001-30
LVDS_HD_26~42"
P1302
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3.3K
LVDS_SEL_PULLUP
R1378
510
OPC
OPC
R1372
0
R1612
0
R1613
AMOTECH
5.6V
ZD1305
AMOTECH
5.6V
ZD1300
19~26"
AMOTECH
5.6V
ZD1302
32~52"
+5V_ST
BLM18PG121SN1D
L1302
19~26"
BLM18PG121SN1D
L1303
32~52"
0 . 1 u F
C1307
32~52"
47K
R1303
2SC3052
Q1300
E
B
C
AMOTECH
5.6V
ZD1304
32~52"
100
R1305
BLM18PG121SN1D
L1305
100
R1318
0 . 1 u F
16V
C1314
12507WR-03L
19~26"
P1303
1
KEY1
2
KEY2
3
GND
4
1000pF
50V
C1312
KEY2
12507WS-08L
P1305
1
KEY1
2
KEY2
3
GND
4
5V_ST
5
GND
6
IR
7
LED_B
8
LED_R
9
.
+5V_ST
BLM18PG121SN1D
L1301
10K
R1302
AMOTECH
5.6V
ZD1301
19~26"
+5V_ST
2SC3052
Q1301
E
B
C
4.7K
R1319
0 . 1 u F
16V
16V
C1308
19~26"
BLM18PG121SN1D
L1304
19~26"
BLM18PG121SN1D
L1307
BLM18PG121SN1D
L1306
1000pF
50V
C1315
IR_OUT
AMOTECH
5.6V
ZD1303
100pF
50V
C1309
0 . 1 u F
C1305
32~52"
LED_B
47K
R1301
0 . 1 u F
16V
C1306
19~26"
+5V_ST
1000pF
50V
C1313
LED_R
22
R1300
KEY1
4.7K
R1320
AMOTECH
5.6V
ZD1306
100
R1317
4.7K
R1142
IR_OUT_HDMI1
IR_OUT
IR_OUT_HDMI2
0 . 1 u F
C1137
22
R1130
IR_OUT_RS232C
74AC08SJ
IC1100
3
O0
2
B0
4
A1
1
A0
6
O1
5
B1
7
GND
8
O3
9
B3
10
A3
11
O2
12
B2
13
A2
14
VCC
MEMC_RESET
MEMC_SCL
MEMC_SDA
MST_IR
2SC3052
Q1121
E
B
C
10K
R1133
10K
R1132
10K
R1131
+5V_ST
IR_OUT_CTRL
NEC_IR
100K
R1304
RSR025P03
Q1101
S
D
G
10K
R1306
OPT
2SC3052
Q1100
E
B
C
POWER_ON/OFF1
D1113
A1
C
A2
IR_OUT_EN
10K
R1307
0
R1308
+5V_ST
1 1 1 2
MODULE&CTL
Module
V4 OPTION
OPC_OUTPUT
OPC_EABLE
E x t e r n a l V B R
S m a l l
X
8BIT
R1370
10BIT
X
R1371
0
R1378
HD
O
FHD
R1379
X
O
X
X
IR & LED
CONTROL
Z e n e r D i o d e i s
c l o s e t o w a f e r
IR_OUT
EAX61527901
LP91Y xxLH200H-ZA
2 0 0 9 . 1 0 . 0 8
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