QVision Operations and Installation Guide
3-4
TROUBLESHOOTING
The following table suggests solutions for problems you may encounter when using the
monitor,
especially for the first time.
Problem
Probable Cause
Solution
No picture
The power switch for the
computer or the monitor is
not turned on.
Turn the power
switches on.
The cables are misconnected or
disconnected.
Check 15-pin connector.
Check BNC connectors.
Check AC contact on
the power cable.
The brightness/contrast
adjustments are not set
correctly.
Check the brightness
and contrast
adjustments.
Unstable
Picture
The signal cable is
misconnected
The compatible video mode
(VGA or above to 1024 x 780)
is not being used.
Check BNC connectors.
Check the documentation
included with the video
board.
Missing color
The BNC cables are
misconnected.
Check BNC connectors.
Display not full
or too small
Improper adjustments for
horizontal or vertical size.
Non-standard signals
may require special
adjustments. Contact
your Authorized
COMPAQ Reseller or
your Authorized
COMPAQ Service
Provider.
