User Manual

66  │  Troub l eshooti ng
Built-in Diagnostics
Your monitor has a built-in diagnostic tool that helps you determine if the screen
abnormality you are experiencing is an inherent problem with your monitor, or with
your computer and video card.
NOTE: You can run the built-in diagnostics only when the video cable is
unplugged and the monitor is in self-test mode.
To run the built-in diagnostics:
1. Ensur
e that the screen is clean (no dust particles on the surface of the
screen).
2. Unp
lug the video cable(s) from the back of the computer or monitor. The
monitor then goes into the self-test mode.
3. Pr
ess and hold Button 6 on the front panel for 5 seconds. A gray screen
appears.
4. Car
efully inspect the screen for abnormalities.
5. Pr
ess Button 6 on the front panel again. The color of the screen changes to
red.
6. Inspec
t the display for any abnormalities.
7. R
epeat steps 5 and 6 to inspect the display in green, blue, black, white and
text screens.
The test is complete when the text screen appears. To exit, press But
ton 6 again.
If you do not detect any screen abnormalities up
on using the built-in diagnostic tool,
the monitor is functioning properly. Check the video card and computer.