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VG700b Series Service Manual
5-3
VX
700b series
Yes
No
No
Yes
Change
Main Board
Change
Main Board
Change
VGA Cable
Change
LCD Panel
Is screen scrolling ?
Is screen flickering ?
Yes
Yes
Yes
Yes
No
No
End
Yes
No
No
Yes
Change
LCD Panel
Change
Inverter Board
Is LCD line defective?
Bad Uniformity ?
Yes
No
Yes
Change
Main Board
Adjust H.size
Fine tune or
Auto Image Adjust
Have line bar or noise?
Yes
Yes
No
1
Yes
No
Yes
Ghost image ?
Yes
Yes
Change
LCD Panel
Yes
Connect VGA
cable to the PC
directly
Yes
No
Check the
Compatibility on
the computer
Yes
No
No
Feedback info.
to
View Sonic
Change
Main Board
Yes
Adjust H.size
Fine tune or
Auto Image
Adjust
ViewSonic Corporation
Confidential
– Do Not Copy
VG700b