LG 50PS8000 - Picture Broken;Freezing

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Only for training and service purposes
LGE Internal Use Only
Making
Revision
2009. 2 . 1
4/9
PDP TV
Symptom
A. Picture Problem
Picture broken/Freezing
Repair Process
4
Y
N
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)
→ 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 Digital signal level meter
. By using Diagnostics menu on OSD
( Menu→Setup→Diagnostic)
- Signal strength (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
※ ’09 years new model apply chip tuner
so, chip tuner is soldered on main PCB
[ Chip Tuner: IC1104(XC5000) ]