Display Problems - Compaq AP200 Maintenance And Service Manual

Display Problems

Problem
Screen is blank.
Graphics colors are wrong.
Characters are dim.
Monitor does not function properly when used with the
energy saver features.
Table 4-4
Solutions for Display Problems
Possible Solution
Monitor is not turned on and the monitor light is not on. Turn
on the monitor and check that the monitor light is on.
Screen save has been initiated. Press any key or move the
mouse to light the screen. Wait a few seconds for the screen
to become active.
Check the cable connection from the monitor to the
workstation and check the grounded AC outlet.
The brightness needs adjusting. Adjust the brightness control.
The energy saver feature has been enabled. Press any key or
type the password. Wait a few seconds for the screen to
become active.
The RGB (Red, Green, Blue) input switch on the back of the
monitor is incorrectly set. Set the monitor's Input switch to 75
ohms. If there is a sync switch, set it to External.
If a fixed-sync monitor is used, be sure that the monitor can
accept the same sweep rate as the resolution chosen.
Check that the graphics adapter is fully and properly inserted
in the PCI or AGP slot.
If the BNC cable is used, make sure that the Red, Green, and
Blue BNC cables are connected to the corresponding monitor
connectors.
Be sure the monitor's RGB inputs are set to 75 ohms.
Adjust the monitor's brightness and contrast controls.
Check that the video cable is securely connected to the video
card and monitor.
Set the RGB switch (and sync options, if available) to 75 ohms,
with the sync set to External. Refer to the documentation
included with the monitor.
A monitor without the energy saver feature is being used with
energy saver features enabled.
Disable the monitor energy saver feature.
Compaq Professional Workstation AP200 Maintenance and Service Guide
4-11
Continued