&
5-6 . PV632AT
S
ERVICE
Yes
No
No
Yes
No
Start
No
Yes
Change
Main Board
Change
Main Board
Change
LCD Module
Change
VGA Cable
Change
Main Board
Change
LCD Module
Change
Inverter Board
Change
LCD Module
Check FPC
cable connect ok ?
Is screen white ?
Change
Inverter
Board
Is screen
scrollig ?
Is screen
flickering ?
Is LCD
line defective ?
Have
bad uniformity ?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Change
LCD Module
Yes
5-2.3
C. Performance Troubleshooting
Change
Main Board
Reset &
Adjust “Tracking or
Frequency” ?
Screen with
noiseor line bar
?
Yes
Yes
Yes
No
No
Reset ok?
Change
Main Board
Make sure
I/P is VGA/SVGA,
not XGA ?
Is display smaller
?
Yes
Yes
Yes
Yes
No
No
No
End
No Trouble Found
