Users Guide

60  │  Tro ub l esh ootin g
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 computer.
3. T
urn On the monitor.
The floating dialog box should appear on-screen (ag
ainst a black background), if the
monitor cannot sense a video signal and is working correctly. While in self-test
mode, the power LED remains white.
NOTE: The message may slightly differ, depending on the connected
input signal.
4. Th
is box also appears during normal system operation, if the video cable
becomes disconnected or damaged.
5. 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 perform the
previous procedure,
check your video controller and computer, because your monitor is functioning
properly.