Read LG 32LH200H (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.
DSUB_B
ISP_RXD
PC_L_IN
MAX3232CDR
IC403
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
DSUB_G
COMP_R_IN
DSUB_R
COMP_Pr
COMP_DET
ISP_TXD
+5V_ST
+5V_ST
COMP_Y
+3.3V
PEJ024-01
JK401
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
COMP_L_IN
PC_R_IN
DSUB_HSYNC
DSUB_VSYNC
DSUB_DET
COMP_Pb
+3.3V
EDID_WP
10K
R412
100
R416
ENKMC2838-T112
D400
A1
C
A2
+5V_ST
18pF
50V
C402
18pF
50V
C401
+5V_GENERAL
+5V_GENERAL
Fiber Optic
JST1223-001
JK403
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
SIDE_USB_DP
SIDE_USB_DM
CDS3C05HDMI1
5.6V
5.6V
D425
26~52"
CDS3C05HDMI1
5.6V
D426
26~52"
CAT24C02WI-GT3
IC400
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AMOTECH
30V
D408
AMOTECH
30V
D409
30V
D413
ADUC30S03010L_AMODIODE
30V
D414
ADUC30S03010L_AMODIODE
30V
D415
ADUC30S03010L_AMODIODE
30V
D416
ADUC30S03010L_AMODIODE
30V
D417
30V
OPT
D423
30V
OPT
D424
AMOTECH
30V
D407
AMOTECH
5.6V
D410
AMOTECH
5.6V
D411
AMOTECH
5.6V
D412
ADMC5M03200L_AMODIODE
5.6V
OPT
D418
ADMC5M03200L_AMODIODE
5.6V
OPT
OPT
D419
ADMC5M03200L_AMODIODE
5.6V
OPT
D420
AMOTECH
5.6V
OPT
D421
AMOTECH
5.6V
OPT
D422
OPT
AMOTECH
ZD403
USB DOWN STREAM
KJA-UB-4-0004
JK405
26~52"
1
2
3
4
5
0
R461
10uF
OPT
OPT
C407
USB_CTL
+5V_USB
USB_OCD
0 . 1 u F
C403
6.2K
R458
6.2K
R457
0
R456
0
R419
0
R435
0
R436
0
R455
0
R446
OPT
0
R440
0
R437
0 . 0 4 7 u F
25V
C430
0 . 1 u F
16V
16V
C431
0 . 1 u F
C405
0 . 1 u F
16V
16V
C406
0 . 1 u F
16V
C400
0 . 3 3 u F
16V
16V
C429
0 . 3 3 u F
16V
C428
0 . 3 3 u F
16V
C425
100
R459
100
R460
1000pF
50V
50V
C415
1000pF
50V
50V
C417
100pF
50V
50V
C422
100pF
50V
50V
C424
10K
R420
10K
R431
10K
R432
12K
R433
12K
R434
1K
R448
1K
R462
OPT
1K
R425
22
R444
22
R445
220pF
50V
50V
C427
220pF
50V
C426
4.7K
R418
4.7K
R447
47
R403
470K
R450
470K
R429
470K
R430
470K
R449
OPT
C419
OPT
C420
OPT
C418
15K
R452
15K
R451
10K
R454
10K
R453
PPJ229-01
JK400
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
MP6211DH
IC402
3
IN_2
2
IN_1
4
EN
1
GND
5
FLAG
6
OUT_1
7
OUT_2
8
OUT_3
4.7K
R406
4.7K
R404
75
1%
R427
75
1%
1%
R426
75
1%
R428
75
1%
1%
R441
75
1%
1%
R442
75
1%
1%
R443
+5V_GENERAL
SPDIF_OUT
1/10W
22
1%
R407
NL17SZ00DFT2G
IC401
3
GND
2
B
4
Y
1
A
5
VCC
4.7K
R402
0 . 1 u F
16V
16V
C408
0
OPT
R405
RJP_CTRL_0
+12V_RJP
RJP_CTRL_3
RJP_CTRL_2
RJP_CTRL_1
RJP_DET
MJ-657PT-8-SD
JK409
1
2
3
4
5
6
7
8
9
+5V_GENERAL
SPG07150941-1
P400
1
RED
2
GREEN
3
BLUE
4
GND_1
5
DDC_GND
6
RED_GND
7
GREEN_GND
8
BLUE_GND
9
NC
10
SYNC_GND
11
GND_2
12
DDC_DATA
13
H_SYNC
14
V_SYNC
15
DDC_CLOCK
16
SHILED
SPG07150941
P401
1
2
3
4
5
6
7
8
9
10
10K
R411
10K
R409
10K
R401
10K
R410
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC404
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0 . 1 u F
C433
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC405
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
0
R469
OPT
UART_RX
+5V_ST
UART_DBG_SW
1uF
10V
10V
OPT
C410
1uF
10V
10V
OPT
C409
PEJ024-01
JK406
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
P E J 0 2 4 - 0 1
JK407
6B T_TERMINAL2
8 SHIELD_PLATE
7B B_TERMINAL2
5 T_SPRING
4 R_SPRING
7A B_TERMINAL1
6A T_TERMINAL1
3 E_SPRING
EXT_OUT_R
IR_OUT_RS232C
EXT_OUT_L
EXT_5V
EXT_12V
0
R483
EXT_12V_9P
0
R484
EXT_5V_7P
0
R485
OPT
100
R467
USB DOWN STREAM
UB01123-4HHS-4F
JK404
19~22"
1
2
3
4
5
0 . 1 u F
C423
1 9 - 2 2 "
CDS3C05HDMI1
5.6V
5.6V
D401
19~22"
CDS3C05HDMI1
5.6V
D402
19~22"
REAR_USB_DP
REAR_USB_DM
+5V_GENERAL
UART_TX
NEC_DBG_RX
MST_DBG_TX
NEC_DBG_TX
0 . 1 u F
C416
+5V_ST
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC410
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
UART_SW1
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC411
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
100
R464
NEC_TX
RS232_MST_TX
RS232_MST_RX
NEC_RX
4.7K
R463
+3.3V
BSS83
Q402
S
B
D
G
4.7K
R438
+5V_ST
EXT_VOL+
DBG_SW
100
R400
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC409
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC408
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
+5V_ST
0 . 1 u F
C404
EXT_VOL-
6.8K
R414
6.8K
R422
+5V_ST
+5V_ST
UART_SW2
UART_TX
NEC_RX
0 . 1 u F
C498
+5V_ST
RS232_MST_RX
NEC_TX
RS232_MST_TX
UART_RX
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC412
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
ON SEMICONDUCTOR
NLASB3157DFT2G
EAN38256201
ANALOG SWITCH
IC413
3
B0
2
GND
4
A
1
B1
6
SELECT
5
VCC
100
R497
100
R495
100
R491
MST_DBG_RX
L1402
10uF
OPT
OPT
C434
USB_OCD
USB_CTL
MP6211DH
1 9 - 2 2 "
IC414
3
IN_2
2
IN_1
4
EN
1
GND
5
FLAG
6
OUT_1
7
OUT_2
8
OUT_3
0 . 1 u F
1 9 - 2 2 "
C432
10K
19-22"
R466
47
1 9 - 2 2 "
R468
2SC3052
Q403
OPT
E
B
C
10K
R498
OPT
10K
R493
OPT
+5V_GENERAL
SUBAMP_SD
0
R492
1K
R465
47K
R439
OPT
BAP70-02
50V
D403
10K
R499
OPT
0
R417
0
R408
3.6K
R413
3.6K
R421
COMPONENT
PC AUDIO
RS232C
4 1 2
INTERFACE
PC - RGB
SPDIF OPTIC JACK
USB
RJP
L
H
SELECTCONNECTION
B 0 - A
B 1 - A
EXT_SPEAKER
EXT_SPK_CONTROL/DEBUG
UART SWITCH
EAX61527901
2 0 0 9 . 1 0 . 0 8
LP91Y xxLH200H-ZA
ERFACE
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