Barco Coronis 21-inch Installation & user manua Installation And User Manual page 101

General tips
Problem description
No image during PC start-
up
Nothing happens when
you press or rotate the
control wheel
The image is non-propor-
tionally spread out over
the screen
The image on the screen
is rotated 90°
The previous image
remains slightly visible on
the screen
On a dual-head system,
the images on the left
and right display seem to
be switched
Possible tests or solutions
• Check the VGA jumper settings on
the display controller
• Check the CMOS settings in the PC
BIOS
• The User Controls may be disabled.
Please read the paragraph about
the "User Controls" function.
• Select another resolution in the
Windows "Display Properties"
control panel
• Select another resolution in the
Windows "Display Properties"
control panel
• This phenomenon, called "image
sticking" is normal if the same
image has been on the screen for a
long time. The ghost image will
disappear after some time.
Over 10 hours operation with the
same image content is not
recommended. Switching on the
display DPMS may decrease the risk
of image sticking.
• A slight case of image sticking can
be solved by continuously
displaying a full white image during
a number of hours.
• Switch the video cables at the
display controller or at the display
video inputs
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