LG 50PX950-AA (CHASSIS:PA02B) Service Manual ▷ View online
Check Connector and cables
JK1000 (Component/Rear AV)
P900 (RGB)
JK1002 (Side AV)
Replace connector or
cable if found damaged
Check signal
JK1000 (
Component/Rear AV
) :
R1005, R1006
R1010,R1011
R1010,R1011
P900 (RGB) : R931, R933
JK900 (Side AV) : R1039, R1040
Replace the Resistor
Check IC100 signal
JK1000 (Component/Rear AV) :
R209, R210, R212,R213,R220,R221
P900 (RGB)
: R216, R217
JK900 (Side AV)
) : R214, R215
Replace the Resistor
Follow procedure
All source audio trouble shooting
Making
전자 - 6-2
Revision
PDP TV
Input
Block
Component / AV/RGB Audio Problem
Y
Y
Y
N
N
N
11/15
2010. 8 . 13
< SPDIF waveform – sample >
- Defend on the input signal.
- Defend on the input signal.
Making
전자 - 6-2
Revision
PDP TV
Input
Block
Optical Audio Problem
N
Check Signal (JK1000 #3)
Check SPDIF signal (R1051)
Replace BCM(IC100)
Check 5V #2 on JK1003
Y
12/15
N
Check Q501 Output (L516)
Y
2010. 8 . 13
Making
전자 - 6-2
Revision
PDP TV
Input
Block
No OSD( or Picture) Problem
Check DISP_EN(R253)
Check R27/R28 and
MICOM
Check LVDS Cable damage
or open connectors
.
Check LVDS DATA
Replace Cable
Check Vs,Va, 5V,17V
on Power Board
Replace Power Board
Check LED blanking
When press a key on R/C
Follow Power-Up Boot Fail
Y
Y
Y
Y
N
N
N
N
13/15
Change BCM(IC100)
N
Check Module condition
Y
2010. 8 . 13
Making
전자 - 6-2
Revision
PDP TV
Input
Block
USB Problem
Check USB 2.0 Cable for damage
or open conductors
Check C1116/C1117 voltage 5V
Y
N
Check IC1101/1102 #8 status
is high ?
Check P1101/P1102
Replace Connector
Y
N
Check R1133,R1134,R1137,R1138
Y
Replace Capacitor
N
N
Replace the Resistor
14/15
Check USB Module condition
Y
Y
Y
Check R200,R201
N
Replace IC1100
Y
Change BCM(IC100)
2010. 8 . 13
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