50PJ260R-MB (CHASSIS:PP01A) - LG TV Service Manual (repair manual). Page 23

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ⓒ LG Electronics. Inc.2009
Check IR operation
Power 
LED ON?
Latest S/W update
from GCSC 
(Firmware Management)
N
Y
OSD
appear?
Y
N
Y
N
Close
Making 
Revision 
PDP TV
Symptom
A. Picture Problem
No Picture/No Sound
Repair Process
Check Module pattern 
by using “TILT” key
on SVC R/C
Normal
N
Check
Sound
Sound
OK
Y
N
Move 
No Picture/ Sound Ok
Section
Close
Y
Check 
LVDS Cable 
Replace
Main B/D
Normal
Y
N
Replace
Main B/D
Normal
Check Input signal
. RF Cable connection
. SCART Cable connection
. HDMI Cable connection
. Component Cable …
2
Normal
Y
N
Repair/Replace
IR B/D
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