Users Guide

Troubleshooting | 39
Troubleshooting
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions .
Self-Test
Your monitor provides a self-test feature that allows you to check whether your monitor
is functioning properly. If your monitor and computer are properly connected but the
monitor screen remains dark, run the monitor self-test by performing the following
steps:
1 T
urn off both your computer and the monitor.
2 Unp
lug the video cable from the back of the computer. To ensure proper Self-Test
operation, remove all digital cables from the back of computer.
3 Turn on the monitor.
NOTE: A dialog box should appear on-screen (against a black background), if the
monitor cannot sense a video signal and is working correctly. While in self-test
mode, the power LED blinks white.
NO
TE: This box also appears during normal system operation, if the video cable
becomes disconnected or damaged.
4 T
urn Off your monitor and reconnect the video cable; then turn On both your
computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check your
video controller and computer, because your monitor is functioning properly.