Read LG 42LH50YR (CHASSIS:LP91B) 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.
TMDS3_RXC+
+5V_HDMI_1
TMDS3_RX2+
100
R304
HPD_MST_1
KDS184S
D300
A1
C
A2
TMDS3_RX0+
100
R327
DDC_SDA1
1K
R303
+5V_HDMI_3
CAT24C02WI-GT3
IC300
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
TMDS1_RX2+
TMDS2_RX1+
DDC_WP
TMDS3_RX1-
1K
R302
2SC3875S
RT1C3904-T112
Q300
E
B
C
10K
R312
SIDE_HDMI
+5V_HDMI_1
TMDS3_RX2-
2SC3875S
RT1C3904-T112
Q302
SIDE_HDMI
E
B
C
CEC
100
R318
TMDS2_RXC+
0.01uF
C300
KDS184S
D301
A1
C
A2
HPD_MST_3
2SC3875S
RT1C3904-T112
Q301
E
B
C
JP301
0.01uF
C302
JP304
DDC_SDA3
+5V_HDMI_3
DDC_WP
100
R307
JP305
1K
R314
SIDE_HDMI
TMDS2_RXC-
TMDS1_RX0-
0.01uF
C301
100
R329
DDC_WP
10K
R301
TMDS1_RX2-
TMDS2_RX1-
JP302
TMDS1_RXC+
DDC_SCL2
TMDS1_RX0+
TMDS3_RXC-
+5V_HDMI_2
100
R306
TMDS3_RX0-
100
R331
CEC
KJA-ET-0-0032
JK303
SIDE_HDMI
14
N
C
1
3
CEC
5
DATA1_SHIELD
20
JACK_GND
1
2
CLK-
11
CLK_SHIELD
2
DATA2_SHIELD
1
9
HPD
18
+5V_POWER
1
0
CLK+
4
DATA1+
1
DATA2+
17
DDC/CEC_GND
9
DATA0-
8
DATA0_SHIELD
3
DATA2-
1
6
SDA
7
DATA0+
6
DATA1-
1
5
SCL
+5V_MULTI
DDC_SCL1
+5V_MULTI
HPD_MST_2
TMDS2_RX2-
10K
R300
CAT24C02WI-GT3
IC301
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_SCL3
DDC_SDA2
KDS184S
D302
A1
C
A2
CEC
TMDS3_RX1+
JP300
TMDS1_RXC-
TMDS2_RX0-
+5V_MULTI
+5V_HDMI_2
100
R317
100
R305
CAT24C02WI-GT3
IC302
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
TMDS1_RX1+
JP303
TMDS1_RX1-
TMDS2_RX2+
TMDS2_RX0+
CEC
0
R313
68K CEC_READY
R315
CEC_C
MMBD301LT1G 30
V
CEC_READY
D303
CDS3C30GTH 30
V
CEC_READY
D304
+3.3V_MST
BSS83
Q303
CEC_READY
S
B
D
G
10K
R311
10K
R309
10K
R320
10K
R319
10K
R310
10K
R308
56000
R332
READY
JP306
JP307
JP308
QJ41193-CFEE1-7F
JK302
1
DATA2+
2
DATA2_SHIELD
3
DATA2-
4
DATA1+
5
DATA1_SHIELD
6
DATA1-
7
DATA0+
8
DATA0_SHIELD
9
DATA0-
10
CLK+
11
12
13
14
15
16
17
18
19
20
JACK_GND
21
.
22
QJ41193-CFEE1-7F
JK301
1
DATA2+
2
DATA2_SHIELD
3
DATA2-
4
DATA1+
5
DATA1_SHIELD
6
DATA1-
7
DATA0+
8
DATA0_SHIELD
9
DATA0-
10
CLK+
11
12
13
14
15
16
17
18
19
20
JACK_GND
21
.
22
MST_HPD : USE MST HPD
SW_HPD : USE SW HPD (Default)
OPTION
EAX58017401 Mstar LCD LH50
INPUT-HDMI
H6 LH50
3 12
2008/12/23
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