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
43
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VP191b/s
6-2-1 Power Circuit Troubleshooting
6-2-2 Performance Troubleshooting
Summary of Contents for VLCDS25973-2W
Page 34: ...31 ViewSonic Corporation Confidential Do Not Copy VP191b s ...
Page 35: ...32 ViewSonic Corporation Confidential Do Not Copy VP191b s ...
Page 79: ...11 PCB Layout Diagrams Main Board 76 ViewSonic Corporation Confidential Do Not Copy VP191b s ...
Page 80: ...Main Board 77 ViewSonic Corporation Confidential Do Not Copy VP191b s ...
Page 81: ...Control Board 78 ViewSonic Corporation Confidential Do Not Copy VP191b s ...