![background image](http://html1.mh-extra.com/html/viewsonic/vg511s/vg511s_service-manual_1021193015.webp)
Color absent
or wrong color
No
Yes
Yes
Segment for
specific color
Scaler O/P short or
open
No
TTL O/P short or open
Noise at certain scale for
more than one color
Use 32 or 64 gray scale
Use 256 gray scale with
R/G/B white
Shadowing
Yes
No
(1) VGA cable quality
bad
(2) Power(3.3V/2.5V)
have big noise
Noisy
Measure R/G/B input
use block pattern
Check VGA cable
(1)Too long?
(2)Quality no good?
C
Picture Abnormal but Stable & size correct
12
ViewSonic
Corporation
Co
nfidential
-
Do
Not
Copy
VG511s
VG512s
Содержание VG511s
Страница 26: ...23 ViewSonic Corporation Confidential Do Not Copy VG511s VG512s ...
Страница 35: ...11 PCB Layout Diagrams Main Board 32 ViewSonic Corporation Confidential Do Not Copy VG511s VG512s ...
Страница 36: ...Main Board 33 ViewSonic Corporation Confidential Do Not Copy VG511s VG512s ...
Страница 37: ...Control Board 34 ViewSonic Corporation Confidential Do Not Copy VG511s VG512s ...