Read LG 22LH200H (CHASSIS:LD91Y) 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.
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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