Compaq Professional Workstation AP200 Reference Manual page 113

Solving Display Problems
Problem
Screen is blank.
( Continued )
Monitor does not
function properly
when used with
energy-saver
features.
Video colors are
wrong.
Characters are dim.
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Continued
Cause
You are using a fixed-sync
monitor and it won't sync at
the resolution chosen.
Monitor without energy-saver
capabilities is being used with
energy-saver features enabled.
This indicates that either the
cabling or monitor impedance
is incorrect.
The brightness and contrast
controls are not set properly.
Cables are not properly
connected.
The RGB switch on the back of
the monitor is incorrectly set.
Compaq Professional Workstation AP200 Reference Guide
Solution
Be sure that the monitor can
accept the same sweep rate
as the resolution chosen.
Disable monitor energy-saver
feature.
1. If you are using BNC
cables, be sure that the
Red, Green, and Blue
BNC cables are
connected to the
corresponding monitor
connectors.
2. Be sure your monitor's
RGB inputs are set to 75
ohms.
Adjust the monitor brightness
and contrast controls.
Verify that the video cable is
securely connected to the
video card and the monitor.
Set the RGB switch (and sync
options, if this option is
available) to 75 ohms, with
the sync set to "External."
Refer to the documentation
included with the monitor.
Continued
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