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Repair Process
PDP TV
☞A19
Check
defect type
Regular
Vertical
Line / Bar
Vertical
Line/Bar
Irregular
Vertical
Line / Bar
☞A18
Half
1.Check X B/D
No picture
2.Replace Board
☞A20
Check connection
Horizontal
of Connector (FPC)
Line/Bar
on Y Drive B/D
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A. Picture Problem
Symptom
Vertical bar/ Horizontal Bar
☞A1
Check Module pattern
by using "TILT" key
on SVC R/C
☞A20
Check connection
of Connector
(COF,TCP)
on CTRL B/D , X B/D
1.Connector re-connection
2.Eliminate foreign material on Connector
Normal
Picture?
Y
Close
Y
1. Check Y Drive B/D
Normal
N
1.Connector re-connection
2.Eliminate foreign material on FFC
Normal
Pattern?
N
☞A13
1.Check CTRL B/D
2.Replace Board
☞A13
Y
1.Check CTRL B/D
Normal
2.Replace Board
N
N
Replace
Module
☞A16
Normal
2. Replace Board
Picture?
Y
Close
5
Making
2009. 2 . 1
Revision
Y
Replace
Module
※CTRL B/D: Control board
Check Main B/D
N
Normal
Replace Module
Picture?
(If Main B/D doesn't cause)
Y
Close
※ H-Line's Cause is rare CTRL B/D
N
1.Check CTRL B/D
Normal
2.Replace Board
Picture?
Close
5/9
N
Replace
Module
Y
LGE Internal Use Only
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