Appendix A Troubleshooting; Solving Common Problems - HP Compaq Presario,Presario CQ1569 User Manual

A Troubleshooting

Solving Common Problems

The following table lists possible problems, the possible cause of each problem, and the recommended
solutions.
Problem
Power LED is not on.
No Plug & Play.
Picture is fuzzy and has ghosting
shadowing problem.
Picture bounces, flickers or wave
pattern is present in the picture.
Monitor is stuck in active off-mode.
ENWW
Possible Cause
Monitor is not turned on or
plugged in.
Computer is not Plug & Play
compatible.
Screen image may need
adjusting.
Electrical interference.
An external device connected
to the monitor may be loose or
not connected.
Solution
Be sure to press the power button to turn on the
monitor and that the power cord is properly
connected to a grounded power outlet and to the
monitor.
In order for the Plug & Play feature of the monitor to
work, you need a Plug & Play compatible computer
& video card. Check with your computer
manufacturer. Also check the monitor's video cable
and make sure none of the pins are bent
Make sure the HP monitor driver is installed (HP
monitor drivers are available at
or on the monitor CD if one is provided).
Adjust the contrast and brightness controls. Make
sure you are not using an extension cable or switch
box. HP recommends plugging the monitor directly
into the video card output connector on the back of
the computer.
Move electrical devices that may cause electrical
interference as far away from the monitor as
possible.
Use the maximum refresh rate your monitor is
capable of at the resolution your are using.
Check the following:
● The computer power switch should be in the on
position.
●
The computer video card should be snugly
seated in its slot.
●
Make sure the monitor's video cable is properly
connected to the computer.
● Inspect the monitor's video cable and make
sure none of the pins are bent.
●
Make sure the computer is operational by
pressing the Caps Lock key on the keyboard
Solving Common Problems
http://www.hp.com
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