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Troubleshooting
$ Abnormal Display(Abnormal Image is on Screen.(except abnormality in Sustain or Address))
& Abnormal Display is related with Y-MAIN, X-MAIN, Logic Main and so on.
This page shows you how to check the boards, and the following pages show you how to find the defective board.
F5001 for VDD
F5002 for Vs
F5004 for VCC
F5005 for OUT_L
Q5009~Q5021
4-10
Great user manuals database on
[ Logic Main ]
Observation of
abnormal display
[ Logic Main ]
LED Blinks
( action of Vsync )
Regular
abnormal
pattern
YES
Replace the Board
[ Y-MAIN ]
Check several points
OPEN
FUSE
Replace the Board
OK
SHORT
FET
Replace the Board
OK
Y-MAIN
Normal State
UserManuals.info
Abnormal
Display
[ Y-MAIN ]
Check necessary points
NO
Logic Main
Normal State
Replace Panel
F4001 for VCC
F4002 for Vs
F4004 for VDD
F4005 for Ve
Q4002~Q4003
Q4011~Q4016
[ X-MAIN ]
Check necessary points
[ X-MAIN ]
Check several points
OPEN
FUSE
Replace the Board
OK
SHORT
FET
Replace the Board
OK
X-MAIN
Normal State
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