Read LG 42LN549C / 42LN549E (CHASSIS:LJ3AC) 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.
5V_HDMI_2
DDC_SDA_2
DDC_SCL_1
DDC_SDA_4
D0+_HDMI2
DDC_SDA_1
+5V_Normal
5V_DET_HDMI_2
D0-_HDMI2
5V_DET_HDMI_4
2.7K
R813
5V_HDMI_1
10K
R808
D1-_HDMI4
CEC_REMOTE_S7
5V_HDMI_4
D1-_HDMI2
1.8K
R802
10K
R811
D2+_HDMI2
100
R816
CK+_HDMI2
2.7K
R820
H
D
M
I_
2
10K
R809
HDMI_2
D2-_HDMI4
CK-_HDMI2
0.1uF
16V
C802
NON_CI_CAP
DDC_SDA_4
HDMI_CEC
1K
R803
HDMI_2
D2-_HDMI2
D2-_HDMI1
HPD2
0.1uF
16V
C801
NON_CI_CAP_HDMI_2
5V_HDMI_2
CK-_HDMI1
DDC_SDA_1
+5V_Normal
HDMI_CEC
1K
R801
DDC_SCL_4
D1-_HDMI1
CK+_HDMI4
10K
R821
HDMI_SIDE
10K
HDMI_SIDE
R823
1.8K
HDMI_SIDE
R815
DDC_SCL_2
20
33
20
95
G
A
E
JK801
la
mr
o
N_
2_
I
M
D
H
14
13
5
D1_GND
20
SHIELD
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
D0-_HDMI4
HPD4
D2+_HDMI1
D1+_HDMI2
1.8K
R804
HDMI_2
3
.3
K
R
80
5
+5V_Normal
DDC_SDA_2
HDMI_CEC
HPD1
20
33
20
95
G
A
E
JK802
la
mr
o
N_
1_
I
M
D
H
14
13
5
D1_GND
20
SHIELD
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
HDMI_CEC
D0-_HDMI1
5V_DET_HDMI_1
D0+_HDMI1
D0+_HDMI4
CK-_HDMI4
2.7K
R812
DDC_SCL_1
5V_HDMI_4
DDC_SCL_2
10K
R810
HDMI_2
2.7K
R819
H
D
M
I_
2
3
.3
K
H
D
M
I_
SI
D
E
R
81
7
D1+_HDMI1
DDC_SCL_4
0.1uF
16V
NON_CI_CAP_HDMI_SIDE
C803
5V_HDMI_1
D1+_HDMI4
CK+_HDMI1
1K
HDMI_SIDE
R814
D2+_HDMI4
3
.3
K
R
80
6
H
D
M
I_
2
2.7K
R827
H
D
M
I_
SI
D
E
2.7K
R828
H
D
M
I_
SI
D
E
MMBT3904(NXP)
Q801
E
B
C
MMBT3904(NXP)
Q802
HDMI_2
E
B
C
MMBT3904(NXP)
HDMI_SIDE
Q804
E
B
C
MMBD6100
D801
2
A
C
1
A
MMBD6100
D802
H
D
M
I_
2
2
A
C
1
A
MMBD6100
D803
H
D
M
I_
SI
D
E
2
A
C
1
A
OPT
VA803
VA803
VA802
OPT
VA801
OPT
51U019S-312HFN-E-R-E-LG
JK803-*1
SIDE_HDMI_32LS3500
14
RESERVED
13
CEC
5
TMDS_DATA1_SHIELD
20
BODY_SHIELD
12
TMDS_CLK-
11
TMDS_CLK_SHIELD
2
TMDS_DATA2_SHIELD
19
HOT_PLUG_DETECT
18
VDD[+5V]
10
TMDS_CLK+
4
TMDS_DATA1+
1
TMDS_DATA2+
17
DDC/CEC_GND
9
TMDS_DATA0-
8
TMDS_DATA0_SHIELD
3
TMDS_DATA2-
16
SDA
7
TMDS_DATA0+
6
TMDS_DATA1-
15
SCL
0
HDMI1_ARC
R807
HDMI_ARC
YKF45-7054V
HDMI_2_BDP_Model
JK801-*1
14
NC
13
CEC
5
DATA1_SHIELD
20
SHIELD
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
YKF45-7054V
HDMI_1_BDP_Model
JK802-*1
14
NC
13
CEC
5
DATA1_SHIELD
20
SHIELD
12
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
19
HPD
18
+5V_POWER
10
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
16
SDA
7
DATA0+
6
DATA1-
15
SCL
E
A
G
62
61
12
04
H
D
M
I_
SI
D
E
JK803
14
13
5
D1_GND
20
BODY_SHIELD
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
HDMI/RJP
8
HDMI_2
For CEC
SIDE_HDMI
HDMI
HDMI_1
For BDP In-Packing Model
- EMI Gasket Touch Jack
LA2AW
2 0 1 2 . 0 9 . 1 1
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