Service manual

4-2.1 A. Power Circuit Troubleshooting
4-2.2 B. Performance Troubleshooting
Start
Change
Main Board
Change
Power
Board
Yes
Yes
No
End
Start
Yes
No
Change
LCD Panel
Change
Main Board
Is screen white ?
Yes
Yes
No
Yes
No
Change
LCD Panel
Change
Main Board
Abnormal Color ?
Yes
Yes
No
Yes
Replug/Change
FPC Cable
No
1
Yes
No
Change
LCD Panel
Change
Main Board
Is screen black ?
Yes
Yes
No
Yes
Change
Inverter Board
No
ViewSonic Corporation
26
Confidential – Do Not Copy
VP171/b/s