Troubleshooting - NEC NCL-1510 User Manual

Troubleshooting

If your monitor is not functioning properly, you may be able to solve the problem
by following the suggestions below :
Problem
Blank screen
Error message:
Video mode not
supported
The display does
not enter power
management
mode
Color defects
Size, position,
shape or quality
unsatisfactory
Duplicated
images
If the power LED is not lit, push the Soft power switch to turn the
monitor on. If the display unit is powered through the computer,
check that the computer is switched on.
The display unit might be in power saving mode. Push one of
the keyboard keys. Check that the keyboard is properly
connected to the computer.
Check that the signal cable connector is properly connected and
that the connection pins are not bent or damaged. If the
connector is loose, tighten the connector's screws.
Check that the power cable is correctly connected to the display
unit and to the power outlet.
Check the resolution and the frequency on the video port of your
computer.
Compare these values with the data in the Preset Timing Table.
The video signal from the computer does not comply with VESA
DPMS standard. Either the computer or the graphics adapter is
not using the VESA DPMS power management function.
Check that the signal cable connector is properly connected and
that the connection pins are not bent or damaged. Try another
color temperature.
Adjust the picture characteristics as described in the section
OSD Adjustment(4-3).
A problem with your graphics adapter or display unit. Contact
your service representative.
Possible solution
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