No Picture/No Sound - LG 42PJ350R Service Manual

Repair Process
PDP TV
Symptom
Check Module pattern
by using "TILT" key
Normal
on SVC R/C
Move
No Picture/ Sound Ok
Section
A. Picture Problem

No Picture/No Sound

Y Check
Sound
Sound
OK
N
N
Check IR operation
Making
Revision
Y
Check
Normal
LVDS Cable
N
Replace
Main B/D
N
Repair/Replace
Normal
IR B/D
Y
Y
Power
LED ON? appear?
N
Latest S/W update
Replace
from GCSC
Main B/D
(Firmware Management)
N
Normal
Y
Close
2
Y
Close
Check Input signal
. RF Cable connection
Y
OSD
. SCART Cable connection
. HDMI Cable connection
. Component Cable ...
N
ⓒ LG Electronics. Inc.2009