DOWNLOAD LG 42LH200H (CHASSIS:LD91Y) Service Manual ↓ Size: 4.9 MB | Pages: 77 in PDF or view online for FREE

Model
42LH200H (CHASSIS:LD91Y)
Pages
77
Size
4.9 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lh200h-chassis-ld91y.pdf
Date

LG 42LH200H (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.
330pF
50V
C1103
SCART1_DET
SC1_G
SC1_CVBS_IN
SC1_R_IN
SC1_ID
SC1_B
SC1_L_IN
220pF
50V
C1108
OPT
SC1_FB
100uF
16V
C1107
330pF
50V
C1102
SC1_R
+3.3V
11K
R1123
30V
OPT
D1101
30V
OPT
D1102
30V
OPT
D1103
30V
OPT
D1104
30V
OPT
D1106
30V
OPT
D1109
30V
OPT
D1111
5.6V
OPT
D1100
5.6V
OPT
D1105
5.6V
OPT
D1107
5.6V
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
C1126
0
R1182
0
R1117
0
R1105
0 . 1 u F
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
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
C1110
1000pF
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
C905
CLOCK_SCL
EAW39040101
32.768KHz
X900
4.7K
R919
1K
R909
+5V_ST
22
R917
2pF
50V
C903
CLOCK_SDA
2pF
50V
C904
RTC_INT
CB3216PA501E
L400
10K
R471
22uF
16V
C442
56K
R475
4.7K
R479
EXT_12V
EXT5V_CTRL
470pF
50V
C443
P_12V
22uF
16V
C440
4.7K
R476
P_12V
1uF
16V
C438
1K
R474
2SC3875S(ALY)
Q400
E
B
C
EXT_PWR_DET
10K
R480
EXT12V_CTRL
0 . 1 u F
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
C439
22uF
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
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.
+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
C1212
0
R1238
200
R1241
200
R1240
1K
OPT
R1239
0
R1205
47
R1208
47
R1207
47pF
50V
C1205
OPT
47pF
50V
C1206
OPT
0 . 1 u F
16V
C1220
0 . 1 u F
16V
C1215
ISA1530AC1
Q1201
E
B
C
ISA1530AC1
Q1205
E
B
C
ISA1530AC1
Q1202
E
B
C
68uF
10V
C1209
0
R1223
0 . 0 1 u F
25V
C1222
0 . 1 u F
16V
C1208
OPT
0 . 1 u F
16V
C1210
0 . 1 u F
16V
C1219
0 . 1 u F
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
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
C1217
47pF
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
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.
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
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
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
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.
47K
R1428
SUB_EEPROM
M24C16-WMN6T
IC1401
SUB_EEPROM
3
3
2
2
4
4
1
1
5
5
6
6
7
7
8
8
NEC_EEPROM_SCL
0 . 1 u F
C1402
SUB_EEPROM
NEC_EEPROM_SDA
22
R1431
SUB_EEPROM
22
R1432
SUB_EEPROM
+5V_ST
47K
R1433
JTP-1127WEM
SW1400
1
2
4
3
EDID_WP
2SC3052
Q1400
E
B
C
KID65003AF
IC1404
3
I 3
2
I 2
4
I 4
1
I 1
6
I 6
5
I 5
7
I 7
8
GND
9
COMMON
10
O7
11
O6
12
O5
13
O4
14
O3
15
O2
16
O1
2SA1504S
Q1406
E
B
C
10
R1450
10
R1451
10
R1452
2SA1504S
Q1407
E
B
C
10
R1453
10
R1454
2SA1504S
Q1408
E
B
C
2SA1504S
Q1409
E
B
C
10
R1455
10
R1456
12507WS-12L
P1400
1
2
3
4
5
6
7
8
9
10
11
12
13
+5V_ST
2SA1504S
Q1410
E
B
C
CLOCK_SCL
CLOCK_SDA
+5V_ST
4.7K
R1400
4.7K
R1401
22
R1404
22
R1405
22
R1408
HDMI_CEC
10K
R1409
22
R1410
SOC_RESET
22
R1411
OPT
22
R1412
OPT
22
R1413
INV_CTL
PANEL_CTL
POWER_ON/OFF1
10K
R1414
OPT
+5V_ST
22
R1415
NEC_IR
22
R1416
22
R1417
22
R1418
22
R1419
NEC_RX
NEC_TX
MST_NEC_RX
+5V_ST
22
R1420
MICOM_RESET
TOOL0
TOOL1
FLMD0
100K
R1422
22
R1423
22
R1424
22
R1425
22
R1426
OPT
12507WS-06L
P1401
1
2
3
4
5
6
7
+5V_ST
MICOM_RESET
TOOL0
TOOL1
FLMD0
22
R1457
22
R1458
22
R1459
4.7K
R1460
4.7K
R1464
KEY1
KEY2
EXT5V_CTRL
EXT12V_CTRL
EXT_PWR_DET
POWER_DET
0
R1461
LED_R
LED_B
+5V_ST
0.1uF
16V
C1403
0
R1462
0
R1463
S6_EEPROM_SCL
1uF
50V
C1405
NEC_EEPROM_SCL
S6_EEPROM_SDA
0 . 1 u F
C1406
0
OPT
R1469
NEC_EEPROM_SDA
0
OPT
R1470
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC1403
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
+5V_ST
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC1402
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
EEPROM_SCL
EEPROM_SDA
1M
R1421
RJP_CTRL_2
100
R1471
100
R1473
RJP_CTRL_1
100
R1474
RJP_CTRL_3
+5V_GENERAL
22
R1475
IR_OUT_CTRL
10MHz
X1400
13pF
C1400
13pF
C1401
74LX1G14CTR
IC1405
3
GND
2
1A
4
1Y
1
NC
5
VCC
PKLCS1212E4001-R1
BU1400
1
2
0 . 1 u F
16V
C1408
+5V_ST
RTC_INT
22
R1434
4.7K
R1402
4.7K
R1403
+5V_ST
NEC_EEPROM_SCL
NEC_EEPROM_SDA
RJP_CTRL_0
100
R1472
22
R1406
22
R1407
22
OPT
R1490
22
OPT
R1491
22
OPT
R1478
22
OPT
R1479
22
OPT
R1480
22
OPT
R1481
22
OPT
R1482
22
R1483
22
OPT R1484
22
R1486
OPT
22
OPT
R1485
22
R1488
22
R1487
22
R1489
UART_DBG_SW
UART_SW1
NEC_DBG_RX
22
R1429
NEC_DBG_TX
22
R1427
DBG_SW
UART_SW2
4.7K
R1466
BLM18PG121SN1D
L1400
0.1uF
16V
C1410
2 . 2 u F
10V
C1411
STBY_MUTE_NTP
STBY_MUTE_TPA
BLM18PG600SN1D
L1403
BLM18PG600SN1D
L1404
SUB_EEPROM
22
R1476
IR_OUT_EN
4.7K
R1492
0
R1659
+3.3V
BSS83
Q1401
S
B
D
G
4.7K
R1493
+5V_ST
4.7K
R1494
0
OPT
R1495
MST_NEC_TX
EEPROM_SW
22
R1496
OPT
EEPROM_SW
UPD78F1164GF(S)
IC1400
NEC
1
P60/SCL0
2
P61/SDA0
3
P62
4
P63
5
P31/TI03/TO03/INTP4
6
P64/RD
7
P65/WR0
8
P66/WR1
9
P67/ASTB
10
P77/EX23/KR7/INTP11
11
P76/EX22/KR6/INTP10
12
P75/EX21/KR5/INTP9
13
P74/EX20/KR4/INTP8
14
P73/EX19/KR3
15
P72/EX18/KR2
16
P71/EX17/KR1
17
P70/EX16/KR0
18
P06/WAIT
19
P05/CLKOUT
20
EVSS1
21
P80/EX0
22
P81/EX1
23
P82/EX2
24
P83/EX3
25
P84/EX4
26
P85/EX5
27
P86/EX6
28
P87/EX7
29
P30/INTP3/RTC1HZ
30
EVDD1
31
P50/EX8
32
P51/EX9
33
P52/EX10
34
P53/EX11
35
P54/EX12
36
P55/EX13
37
P56/EX14
38
P57/EX15
39
P17/EX31/TI02/TO02
40
P16/EX30/TI01/TO01/INTP5
41
P15/EX29/RTCDIV/RTCCL
42
P14/EX28/RXD3
43
P13/EX27/TXD3
44
P12/EX26/SO00/TXD0
45
P11/EX25/SI00/RXD0
46
P10/EX24/SCK00
47
AVREF1
48
P110/ANO0
49
P111/ANO1
50
AVREF0
51
AVSS
52
P157/ANI15
53
P156/ANI14
54
P155/ANI13
55
P154/ANI12
56
P153/ANI11
57
P152/ANI10
58
P151/ANI9
59
P150/ANI8
60
P27/ANI7
61
P26/ANI6
62
P25/ANI5
63
P24/ANI4
64
P23/ANI3
65
P22/ANI2
66
P21/ANI1
67
P20/ANI0
68
P130
69
P131/TI06/TO06
70
P04/SCK10/SCL10
71
P03/SI10/RXD1/SDA10
72
P02/SO10/TXD1
73
P01/TO00
74
P 0 0 / T I 0 0
75
P145/TI07/TO07
76
P144/SO20/TXD2
77
P143/SI20/RXD2/SDA20
78
P142/SCK20/SCL20
79
P141/PCLBUZ1/INTP7
80
P140/PCLBUZ0/INTP6
81
P120/INTP0/EXLVI
82
P47/INTP2
83
P46/INTP1/TI05/TO05
84
P45/SO01
85
P44/SI01
86
P43/SCK01
87
P42/TI04/TO04
88
P41/TOOL1
89
P40/TOOL0
90
RESET
91
P124/XT2
92
P123/XT1
93
FLMD0
94
P122/X2/EXCLK
95
P121/X1
96
REGC
97
VSS
98
EVSS0
99
VDD
100
EVDD0
BUZZ_PWM
EEPROM for Micom
B 1   -   A
CONNECTION
SELECT
L
B 0   -   A
H
Closed to Crystal
EAX61527901
LP91Y xxLH200H-ZA
1 2         1 2
      2 0 0 9 . 1 0 . 0 8
NEC SUBMICOM
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