Read LG 42PJ250R-TA / 42PJ251R-TB (CHASSIS:PP01A) Service Manual online
ⓒ LG Electronics. Inc.2009
Making
Revision
PDP TV
Symptom
A. Picture Problem
Picture broken/Freezing
Repair Process
Y
4
N
Check RF Signal level
Normal
Signal?
Check RF Cable
Connection
1. Reconnection
Check
S/W Version
S/W Upgrade
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc
SVC
Bulletin?
Replace
Main B/D
Check
Tuner soldering
Normal
Picture?
Y
N
Y
Close
Normal
Picture?
Y
Close
. By using signal level meter
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
- Signal Quality (Normal: over 50%)
Normal
Picture?
Y
Contact with signal distributor
or broadcaster (Cable or Air)
N
N
Normal
Picture?
Y
Close
N
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