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
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.
4.7K
R421
2SC3052
Q405
IR-OUT
E
B
C
ZD402
SUB_SDA
+5VST_MST
10K
IR-OUT
R427
KEY2
120ohm
L406
+3.3V_MULTI_MST
120ohm
L403
IR
2SC3052
Q404
IR-OUT
E
B
C
22
IR-OUT
R430
0.1uF
C408
ZD400
10K
IR-OUT
R429
470pF
C412
+5VST_MST
10K
IR-OUT
R428
SUB_SCL
KEY1
0.1uF
C407
READY
IR_OUT
500-ohm
L410
BEAD_USE LH20_30
BEAD_USE LH20_30
120ohm
L402
0
L410-*1
R_USE LH20_30
+5VST_MST
47uF
C406
470pF
C404
47K
IR-OUT
R426
+3.3V_MST
500-ohm
L411
BEAD_USE LH20_30
BEAD_USE LH20_30
0
L411-*1
R_USE LH20_30
R_USE LH20_30
4.7K
R420
0
R417
0.1uF
C411
+3.3V_MST
0
R400
READY
0.1uF
C414
ZD401
47pF
C403
12507WS-12L
P400
1
2
3
4
5
6
7
8
9
10
11
12
13
+3.3V_MST
MLB-201209-0120P-N2
L404
MLB-201209-0120P-N2
L407
CONTROL KEY
EAX58017401
Mstar LCD LH50
CONTROL KEY
H6 LH50
4 1 2
2008/12/23
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
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.
+12V_AUDIO
6800pF
C701
MNT_LOUT
RT1C3904-T112
Q701 E
B
C
MNT_L_AMP
RT1C3904-T112
Q700
E
B
C
MNT_R_AMP
+12V_AUDIO
6800pF
C700
LM324D
IC701
3 INPUT1+
2 INPUT1-
4 VCC
1 OUT1
6 INPUT2-
5 INPUT2+
7 OUT2
8
OUT3
9
INPUT3-
10
INPUT3+
11
GND
12
INPUT4+
13
INPUT4-
14
OUT4
MNT_ROUT
+12V_AUDIO
33pF
C702
33pF
C703
0.01uF
C704
1K
R703
1K
R702
4.7K
R700
4.7K
R701
10K
R707
10K
R704
6.8K
R709
6.8K
R708
5.6K
R706
5.6K
R705
0.1uF
C707
0.1uF
C709
EAX58017401
Mstar LCD LH50
AMP & HOTEL OPTION
H6 LH50
7 1 2
2008/12/23
AMP :GAIN X 4
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