Read LG 37LH4000 / 37LH4010 / 37LH4020 (CHASSIS:LD91G) 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.
GND
D601
ENKMC2838-T112
A1
C
A2
DDC_SDA_1
2:E10;AL9
D0+_HDMI3
2:E13
+5V_ST
D0-_HDMI2
2:E11
DDC_SDA_3
2:E14;AL14
CK+_HDMI2
2:E10
EDID_WP
1:AJ20;AI16;AL12
CEC_REMOTE
K19;K8;AH25
DDC_SDA_2
2:E12;AL19
D1+_HDMI1
2:E9
D2-_HDMI2
2:E12
JP601
EDID_WP
D602
ENKMC2838-T112
A1
C
A2
DDC_SDA_3
DDC_SCL_3
JP603
D1+_HDMI2
2:E11
D0+_HDMI1
2:E8
5V_HDMI_2
DDC_SDA_1
2:E10;K7
JP605
D0-_HDMI3
2:E13
CK-_HDMI3
2:E13
DDC_SCL_1
2:E10;AL9
D1-_HDMI2
2:E11
JP600
5V_HDMI_3
D0+_HDMI2
2:E11
D2+_HDMI3
2:E14
GND
D1-_HDMI1
2:E9
D1-_HDMI3
2:E14
D2-_HDMI3
2:E14
CK-_HDMI1
2:E8
D2+_HDMI1
2:E9
+5V_ST
GND
CK+_HDMI3
2:E13
GND
CEC_REMOTE
K19;X14;AH25
CK-_HDMI2
2:E11
DDC_SCL_3
2:E15;AL13
D0-_HDMI1
2:E9
DDC_SCL_2
D1+_HDMI3
2:E14
DDC_SCL_2
2:E12;AL18
D2-_HDMI1
2:E9
JP606
DDC_SCL_1
2:E10;K7
+5V_ST
CEC_REMOTE
K8;X14;AH25
JP604
D600
ENKMC2838-T112
A1
C
A2
DDC_SDA_2
5V_HDMI_1
D2+_HDMI2
2:E12
CK+_HDMI1
2:E8
JP611
EDID_WP
JP607
5V_HDMI_1
HPD1
Q601
2SC3052
E
B
C
5V_HDMI_2
HPD2
Q602
2SC3052
E
B
C
5V_HDMI_3
HPD3
Q603
2SC3052
E
B
C
IC601
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC600
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
IC602
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
R607
0
GND
+3.3V_ST
HDMI_CEC
Q600
SSM6N15FU
OPT
3
DRAIN2
2
GATE1
1
SOURCE1
4
SOURCE2
5
GATE2
6
DRAIN1
D603
MMBD301LT1G
30V
CEC_REMOTE
R625
0
C605
0.1uF
16V
OPT
R627
120K
C600
0.1uF
16V
C601
0.1uF
16V
C602
0.1uF
16V
C603
0.1uF
C604 0.1uF
C607 0.1uF
R600
2K
R601
2K
R602
2K
R603
22
R609
0
R618
0
R619
0
R620
0
R621
0
R622
0
R645
0
R642
0
R640
0
R623
0
R605
0
R617
10K
R616
10K
R615
10K
R613
1K
R614
1K
R612
1K
R606
22
R604
22
R610
22
R611
22
R608
22
R631
OPT
JP602
R646
4.7K
R649
4.7K
R6
2
8
4.
7K
R626
4.7K
R630
4.7K
R629
4.7K
JK601
EAG39789402
1
D2+
2
D2_GND
3
D2-
4
D1+
5
D1_GND
6
D1-
7
D0+
8
D0_GND
9
D0-
10
CK+
11
12
13
14
15
16
17
18
19
20
21
22
JK600
EAG39789402
1
D2+
2
D2_GND
3
D2-
4
D1+
5
D1_GND
6
D1-
7
D0+
8
D0_GND
9
D0-
10
CK+
11
12
13
14
15
16
17
18
19
20
21
22
JK602
EAG42463001
14
13
5
D1_GND
20
JACK_GND
12
11
2
D2_GND
19
18
10
CK+
4
D1+
1
D2+
17
9
D0-
8
D0_GND
3
D2-
16
7
D0+
6
D1-
15
UI_HW_PORT3
UI_HW_PORT1
UI_HW_PORT2
SIDE HDMI (OPT:SIDE_HDMI)
$0.26
(OPT:REAR_HDMI_2EA)
HDMI_CEC
HDMI
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