LG 37LD333H (CHASSIS:LA06H) 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.
RXA0-
RXA4+
0
OPT
R716
RXACK+
OPC_EN
RXB1-
MDS61887701
GASKET2
M2
0
OPT
R704
RXB4-
MDS61887701
GASKET5
M5
RXA0-
3.3K
LVDS_SEL_HIGH
R717
RXA2+
PANEL_VCC
RXACK-
RXB2+
RXBCK-
PWM_DIM
0 . 1 u F
16V
16V
WAFER_FHD
C702
RXA2-
3.3K
LVDS_SEL_HIGH
R711
RXA4-
RXA1+
0
OPT
R713
RXA0+
PANEL_VCC
PWM_DIM
120-ohm
WAFER_FHD
L700
+3.3V_Normal
RXACK-
10uF
16V
16V
OPT
C700
TF05-51S
WAFER_FHD
P700
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
0
OPT
R702
RXA1+
RXB4+
MDS61887701
GASKET4
M4
RXB3+
RXACK+
RXB1+
0
OPT
R715
MDS61887701
GASKET3
M3
0
NON_SCAN
R700
RXB3-
MDS61887701
GASKET6
M6
10K
LVDS_SEL_LOW
R712
RXB0-
10K
LVDS_SEL_LOW
R718
OPC_EN
0
WAFER_HD
R714
RXA0+
RXA1-
GND
GND
FI-X30SSL-HF
WAFER_HD
P701
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
RXA2-
RXB2-
RXA2+
RXA1-
1000pF
50V
50V
WAFER_FHD
C701
RXBCK+
120-ohm
WAFER_HD
L701
+3.3V_Normal
RXA3+
OPC_OUT
RXA3-
RXA3-
RXA3+
RXB0+
MDS61887701
GASKET1
M1
10K
BIT_SEL_LOW
R710
0
SCAN
R703
SCAN_BLK1/OPC_OUT
SCAN_BLK2
0
SCAN
R701
7
[ 3 0 P i n L V D S C o n n e c t o r ]
(For HD 60Hz_Normal)
LVDS_SEL
[ 5 1 P i n L V D S C o n n e c t o r ]
( F o r F H D 6 0 / 1 2 0 H z )
BIT_SEL
GASKET
LVDS_SEL
37LD320H
LVDS
2 0 1 0 . 1 2 . 2 2
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.
0
R845
0
R831
AT24C02BN-SH-T
IC801
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
0
R842
0
R822
4.7K
R885
5V_HDMI_1
CK+_HDMI2
2SC3052
Q802
E
B
C
D801
D1+_HDMI2
D2+_HDMI1
5V_HDMI_1
0
R834
DDC_SCL_1
1K
R895
10K
R873
0 . 1 u F
16V
16V
C801
100
R824
22
R805
DDC_SCL_1
D2+_HDMI2
D0+_HDMI2
0
R848
0
R827
3.3K
R801
0
R844
D2-_HDMI2
5V_HDMI_2
5V_DET_HDMI_1
22
R877
DDC_SCL_2
1K
R896
HPD1
4.7K
R888
0 . 1 u F
C807
0
R847
0
R823
CK-_HDMI2
D2-_HDMI1
AT24C02BN-SH-T
IC802
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D0+_HDMI1
D1-_HDMI2
2SC3052
Q801
E
B
C
ENKMC2838-T112
D822
D822
A1
C
A2
0
R832
D0-_HDMI2
22
R875
DDC_SDA_2
0
R843
DDC_SDA_2
HPD2
4.7K
R889
5V_HDMI_2
D802
D1+_HDMI1
EDID_WP
22
R876
3.3K
R802
ENKMC2838-T112
D821
D821
A1
C
A2
0
R829
+5V_Normal
22
R806
22
R878
0
R846
CK-_HDMI1
1.8K
R803
0 . 1 u F
16V
16V
C802
D0-_HDMI1
DDC_SDA_1
10K
R830
HDMI_CEC
+5V_Normal
22
R826
5V_DET_HDMI_2
EDID_WP
10K
R828
D1-_HDMI1
0 . 1 u F
C806
0
R833
1.8K
R804
HDMI_CEC
DDC_SDA_1
4.7K
R884
100
R815
DDC_SCL_2
CK+_HDMI1
0
R850
10K
R874
22
R825
AT24C02C-SSHM-T
IC801-*1
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
AT24C02C-SSHM-T
IC802-*1
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
YKF45-7058V
JK801
14
13
5
20
SHIELD
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
YKF45-7058V
JK802
14
13
5
20
SHIELD
12
11
2
19
18
10
4
1
17
9
8
3
16
7
6
15
$0.055
$0.253
HDMI_1
HDMI_2
$0.055
HDMI EEPROM
$0.253
8
37LD320H
HDMI
2 0 1 0 . 1 2 . 2 2
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.
10K
R1021
0
R1002
0 . 1 u F
C1001
RS232_TX010:V16
RESET_high
016:H27
22K
R1040
TP1000
0 . 3 3 u F
C1009
+5V_ST
PTC_TX_S7
0 0 1 : A J 2 4
22K
R1032
0
R1000
UART_SWA
016:AA21
MC14053BDR2G
IC1000
ON semi
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
100
R1015
0 . 1 u F
C1010
100
R1013
SDC15
D1004
A1
C
A2
0
R1001
1K
R1027
PTC_RX_S7_3.3V
0 0 1 : A J 2 4
0 . 3 3 u F
C1008
PTC_RX_5V
0 1 0 : R 2 2 ; 0 1 6 : X 7
22K
R1033
22K
R1041
MC14053BDR2G
IC1001
ON semi
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
100
R1009
JP1001
100
R1005
0
R1003
+5V_ST
2SC3875S(ALY)
Q1001
E
B
C
TP1002
0 . 1 u F
C1000
JP1000
+3.5V_ST
100
R1019
10K
R1022
UART3_TX
0 1 0 : E 2 5 ; 0 1 6 : N 1 5 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 3
PTC_RX_5V
0 1 0 : K 2 3 ; 0 1 6 : X 7
UART3_TX
0 1 0 : E 1 6 ; 0 1 6 : N 1 5 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 3
10K
R1030
UART_SWB
016:AA21
RS232_RX010:V16
220pF
C1012
+3.5V_ST
JP1002
100
R1010
+3.5V_ST
100
R1039
1K
R1037
100
R1034
0 . 3 3 u F
C1006
100
R1012
100
R1011
220pF
C1011
SDC15
D1007
A1
C
A2
+3.5V_ST
RS232_TX
010:N16
1K
R1026
2SC3875S(ALY)
Q1003
E
B
C
+5V_ST
S7_TX
001:X17
100
R1035
100
R1006
0
R1007
100
R1008
2SC3875S(ALY)
Q1002
E
B
C
2SC3875S(ALY)
Q1004
E
B
C
1K
R1036
UART3_RX
0 1 0 : K 2 3 ; 0 1 6 : N 1 4 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 4
S7_RX
001:X17
SDC15
D1005
A1
C
A2
RS232_RX
010:N15
0 . 0 4 7 u F
C1007
10K
R1031
+5V_ST
+3.5V_ST
TP1001
100
R1020
SDC15
D1006
A1
C
A2
2SC3875S(ALY)
Q1005
E
B
C
UART3_RX
0 1 0 : N 1 4 ; 0 1 6 : N 1 4 ; 0 1 6 : Y 2 5 ; 0 1 6 : A A 4
OPT
R1038
2SC3875S(ALY)
Q1000
E
B
C
0
R1042
0
R1043
0
R1044
0
R1045
MAX3232CDR
IC1003
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
PTC_TX
016:X9
EXT_PTC_RESET
0 0 1 : A J 2 6
10K
R1047
10K
R1048
EXT_PTC_UPDATE
0 0 1 : A J 2 1
Update_SW
0 1 6 : F 2 2
+3.5V_ST
47K
R1046
47K
R1049
SPG09-DB-009
P1000
1
2
3
4
5
6
7
8
9
10
100pF
50V
SIDE_AV_OPT
C1004
5.6V
SIDE_AV_OPT
D1002
100pF
SIDE_AV_OPT
C1002
BLM18PG121SN1D
SIDE_AV_OPT
L3301
10K
SIDE_AV_OPT
R1024
12K
SIDE_AV_OPT
R1028
BLM18PG121SN1D
SIDE_AV_OPT
L3302
12K
SIDE_AV_OPT
R1029
SIDEAV_R_IN
1K
SIDE_AV_OPT
R1023
+3.3V_Normal
5.6V
SIDE_AV_OPT
D1003
75
SIDE_AV_OPT
R1014
10K
SIDE_AV_OPT
R1018
470K
SIDE_AV_OPT
R1017
30V
SIDE_AV_OPT
D1000
BLM18PG121SN1D
SIDE_AV_OPT
L3303
100pF
OPT
C1005
10K
SIDE_AV_OPT
R1025
P P J 2 3 5 - 0 1
SIDE_AV_OPT
JK1000
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A [YL]CONTACT
4B
[WH]O-SPRING
3C [RD]CONTACT
4C
[RD]O-SPRING
5C
[RD]E-LUG
5.6V
SIDE_AV_OPT
D1001
470K
SIDE_AV_OPT
R1016
SIDEAV_CVBS_IN
100pF
50V
SIDE_AV_OPT
C1003
SIDEAV_L_IN
SIDEAV_DET
HEF4053B
IC1000-*1
BT
3
Y1C
2
Y0B
4
ZC
1
Y1B
6
E
5
Y0C
7
VEE
8
VSS
9
SC
10
SB
11
SA
12
Y0A
13
Y1A
14
ZA
15
ZB
16
VDD
HEF4053B
IC1001-*1
BT
3
Y1C
2
Y0B
4
ZC
1
Y1B
6
E
5
Y0C
7
VEE
8
VSS
9
SC
10
SB
11
SA
12
Y0A
13
Y1A
14
ZA
15
ZB
16
VDD
JP3011
JP3012
JP3014
10
X
X
1
SW_A
PC_SIM
0
RxD
X
1
PTC OAD
X
M-STAR DEBUG
COM/MON
0
SELECT PTC OAD OR NOT
1
X
S e r i a l P o r t
1
SELECT PTC OR BCM DEBUG
1
O b j e c t i v e
X
PTC DEBUG
SIMULATION
SW_B
0
0
( N e w I t e m D e v e l o p m e n H : 9 . 2 m m )
SIDE_AV
37LD320H
RS232C
2 0 1 0 . 1 2 . 2 2
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.
0
R1502
CDS3C05HDMI1
5.6V
D1501
USB DOWN STREAM
KJA-UB-4-0004
JK1450
1
2
3
4
5
MLB-201209-0120P-N2
120-ohm
L1451
SIDE_USB_DP
SIDE_USB_DM
0
R1501
TP1451
CDS3C05HDMI1
5.6V
5.6V
D1500
/RST_HUB
22uF
10V
10V
C1500
AP2191SG-13
IC1500
3
IN_2
2
IN_1
4
EN
1
GND
5
FLG
6
OUT_1
7
OUT_2
8
NC
10uF
10V
10V
C1501
+5V_USB
0 . 1 u F
C1502
4.7K
OPT
R1504
+3.3V_Normal
0
R1505
USB1_CTL
10K
R1503
47
R1500
USB1_OCD
TP1452
/RST_PHY
10uF
C1510
MPI
DUM_SPI_DIN
016:Q6
DUM_MPI_DOUT
016:AG12
+5V_ST
IR_IN_MODEM
016:AN14
DUM_MPI_DIN
0 1 6 : A I 9
DUM_SPI_DOUT
016:Q5
+12V_C
DUM_SPI_CLOCK
016:Q6
SMW200-11
P1500
MPI
1
12V
2
GND
3
BUFFERED_MPI
4
MPI_DOUT
5
SPI_DATA_OUT
6
SPI_DATA_IN
7
SPI_CLOCK
8
GND
9
VCC
10
IR_IN_MODEM
11
GAME CONT
MLB-201209-0120P-N2
L1500
MPI
GND
0
R1525 MPI
0
R1522 MPI
0
5%
1/16W
R1514
MPI
0
R1523
MPI
0
R1526 MPI
0
R1524 MPI
SIGN6409
USB_DIODES
$ 0 . 0 7 7
14
MPI
37LD320H
USB/MPI
2 0 1 0 . 1 2 . 2 2
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