Dell Crystal Monitor - Manual (Page 25)

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Solving Problems
Dell™ Crystal Flat Panel Monitor User's Guide
Troubleshooting the Monitor
Common Problems
Camera Problems
Product Specific Problems
Troubleshooting the Speakers
Troubleshooting the Monitor
Self-Test Feature Check
Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If the monitor and computer connections are
correct and nothing appears on the screen, run the monitor self-test by performing the following steps:
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer or output device to ensure proper Self-Test operation.
3. Turn on the monitor.
If your monitor screen remains blank after you reconnect the cables, check the video controller and computer.
Common Problems
The following table contains general information about common monitor problems you might encounter and the possible solutions.
CAUTION: Before you begin any of the procedures in this section, follow the Safety Instructions .
If the monitor is working and cannot sense a video signal, a floating self test dialog box appears on the screen.
NOTE: While in the self-test mode, the monitor displays the Dell logo.
NOTE: Self test dialog box also appears during normal system operation if the video cable becomes disconnected or damaged. Turn off your
monitor and reconnect the video cable; then turn on both your computer and the monitor.
COMMON SYMPTOMS PROBLEM DESCRIPTION POSSIBLE SOLUTIONS
No Video/DELL logo off No picture, monitor is dead. l Check the cable connections.
l Verify that the monitor and computer power cables are connected to a working
electrical outlet.
l Ensure that you have pressed the power button.
No Video/DELL logo on No picture or no brightness. l Increase brightness & contrast controls.
l Perform monitor self-test feature check.
l Check for damaged leads on the connector head.
l Reboot your computer and monitor.
Poor Focus Picture is fuzzy, blurry, or ghosting. l Eliminate video extension cables.
l Perform monitor reset.
l Lower video resolution or increase font size.
Shaky/Jittery Video Wavy picture or fine movement. l Perform monitor reset.
l Check environmental factors.
l Relocate and test in another room.
Missing Pixels LCD screen has spots. l Cycle power on-off.
l These are pixels that are permanently off and this is a natural defect that occurs
in LCD technology.
Brightness Problems Picture too dim or too bright. l Perform monitor reset.
l Adjust brightness & contrast controls.
Horizontal/Vertical Lines Screen has one or more lines. l Perform monitor reset.
l Perform monitor self-test feature check and determine if these lines are also in
self-test mode.
l Check for damaged leads on the connector head.