Read LG 50PK980-ZA (CHASSIS:PD02C) Service Manual online
ⓒ LG Electronics. Inc.2009
Making
전자 - 6-2
Revision
2010. 2 . 22
2/9
PDP TV
Symptom
A. Picture Problem
No Picture/No Sound
Repair Process
2
Check IR operation
Power
LED ON?
Latest S/W update
from GCSC
(Firmware Management)
N
Y
OSD
appear?
Y
N
Y
N
Close
Check Module pattern
by using “TILT” key
on SVC R/C
Normal
N
Check
Sound
Sound
OK
Y
N
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 …
. RF Cable connection
. SCART Cable connection
. HDMI Cable connection
. Component Cable …
Normal
Y
N
Repair/Replace
IR B/D
Check
Vs, Va
Normal
Check voltage
. -V
Y
. V
SC
. V
ZB
Y
N
Move
Power problem
Section
Normal
Y
Check B+ Voltage
on Power Board
on Power Board
/ Control Board
.Check B+(5V)
Normal
1.Check Control Board
. LED on
. Crystal(X101)
. 1.8V, 3V, 5V FET
. Rom update
. Crystal(X101)
. 1.8V, 3V, 5V FET
. Rom update
2.Replace Control B/D
Y
N
Move
Power problem
Section
1. Check Y-Sus/ Z-Sus
Board
2. Replace defective B/D
Board
2. Replace defective B/D
N
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