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2.1
A. Power Circuit Troubleshooting
2.2 B. Performance Troubleshooting
Change
Power
Board
Start
Change
Video Board
End
No
Yes
Change
Power
Board
Is screen White ?
Is screen Black ?
Start
Change
Video
Board
Change
LCD
Panel
Yes
Yes
Yes
No
Abnormal Color ?
1
No
No
Replug or
Change
FFC cable
Change
Video
Board
Change
LCD
Panel
Yes
Yes
Yes
No
No
Change
Video
Board
No
No
Change
LCD
Panel
Yes
Yes
No
29
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VX510