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Repair Process
PDP TV
☞A21
Check RF Signal level
Y
Normal
Signal?
N
Check RF Cable
Connection
1. Reconnection
2. Install Booster
N
Normal
Picture?
Y
Close
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A. Picture Problem
Symptom
Picture broken/Freezing
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu→Setup→Diagnostic)
- Signal strength (Normal : over 50%)
- Signal Quality (Normal: over 50%)
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc
Normal
Picture?
N
Contact with signal distributor
or broadcaster (Cable or Air)
Y
Check
SVC
S/W Version
Bulletin?
Y
S/W Upgrade
Normal
Picture?
Y
Close
4
Making
2009. 2 . 1
Revision
■ Menu→Setup →Booster
Booster menu
N
Normal
On→Off: Check
Picture?
Off→On: Check
Check
Tuner soldering
N
Replace
Main B/D
※ '09 years new model apply chip tuner
so, chip tuner is soldered on main PCB
[ Chip Tuner: IC500(XC5000) ]
4/9
Y
Close
N
LGE Internal Use Only
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