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Repair Process
PDP TV
Symptom
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, Power B/D ↔ Z-Sus B/D(for 60Inch), LVDS Cable, Speaker Cable, IR B/D Cable)
☞A1
Check Module pattern
by using "TILT" key
on SVC R/C
<SVC R/C & Pattern>
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Only for training and service purposes
A. Picture Problem
No Picture/Sound OK
☞A2
Check
Y
Normal
Sound
N
No Picture/No sound
☞A5~A6
☞A3
Check voltage
Y
Check
. -V
Y
Normal
Vs, Va
. V
SC
. V
ZB
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
Normal
/ Control Board
.Check B+(5V)
N
☞A8~A11
1. Check Y-Sus/ Z-Sus Board
2. Replace defective B/D
V
V
Y
SC
ZB
1
Making
Revision
Y
Normal
Close
N
Replace
Main B/D
Y
Normal
N
Move
Power problem
Section
☞A4
1/10
☞A13
1.Check Control Board
. LED on
. Crystal(X2), 3.3V, 5V
. Rom update
2.Replace Control B/D
LGE Internal Use Only
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