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Repair Process
PDP TV
First of all, Check whether all of cable between board was inserted properly or not.
(Main B/D↔ Power B/D, Power B/D↔ Y-sus B/D,Y-Sus B/D ↔Z-Sus B/D,LVDS Cable,Speaker Cable,IR B/D Cable,,,)
☞A1
Check Module pattern
by using "TILT" key
on SVC R/C
<SVC R/C & Pattern>
Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A. Picture Problem
Symptom
No Picture/Sound OK
☞A2
Check
Y
Normal
Sound
N
No Picture/No sound
☞A5~A6
☞A3
Check voltage
Y
Check
. -V
Normal
Vs, Va
. V
. V
N
Move
Power problem
Section
※Refer to the Module label for each voltage
-V
Check
Y
Sound
LVDS Cable
OK
N
Move
Section
☞A12
Check B+ Voltage
Y
on Power Board
Y
Normal
/ Control Board
SC
.Check B+(5V)
ZB
N
☞A8~A11
1. Check Y-Sus/ Z-Sus Board
2. Replace defective B/D
V
V
Y
SC
ZB
1
Making
2009. 2 . 1
Revision
Y
Normal
Close
N
Replace
Main B/D
☞A13
1.Check Control Board
Y
Normal
2.Replace Control B/D
N
Move
Power problem
Section
☞A4
1/9
. LED on
. Crystal(X101)
. 1.8V, 3V, 5V FET
. Rom update
LGE Internal Use Only
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