![background image](http://html1.mh-extra.com/html/viewsonic/vg500b-1/vg500b-1_service-manual_1021189015.webp)
The Ver. Or Hor.
Sync. Does not hold
Are the output of
gm2115 (CLK,
H, V, DE)
normal
Tighten two flex
cables at CN501,
CN502
End
ReplaceU400
End
Are two flex cables
attached firmly at
the LCD panel
connectors
Replace V901 (LCD
panel)
End
Are two flex cables
attached firmly at
CN501, CN502
Are the input
waveforms of
gm2115 normal
Tighten two flex
cables at CN501,
CN502
Yes Yes
Yes
Yes
No
No
No
End
ViewSonic Corporation
12
VG500b-1
Confidential
– Do Not Copy
Summary of Contents for VG500b-1
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