NEC MultiSync A500 Manuel D'utilisation page 18

Troubleshooting/Support
FACTORY PRESET: Selecting Factory Preset allows you to reset all
OSM settings except IPM OFF MODE back to the factory settings.
Individual settings can be reset by highlighting the control to be reset and
pressing the RESET button.
Troubleshooting/Support
Problem
No Picture
Image is scrolling or
unstable
LED on the monitor is
not lit (no green, orange
or yellow color can be
seen)
Picture is fuzzy
Picture bounces or a
waving pattern is
present in the picture
Edges of the display
image are not square
Check These Items
The video card should be completely seated in its
slot. Power Switch and computer power switch
should be in the ON position. The signal cable
should be completely connected to the video
card/computer. Check the connector for bent or
pushed-in pins.
Signal cable should be completely attached to the
computer. Check the pin assignment and signal
timing of your video card with respect to the
frequency range and pin assignment. If the MAC
adapter is used, check for proper connection or
make sure the video card is MAC compatible and
that the card is properly seated in the computer.
Power Switch should be in the ON position and
the power cord should be connected.
Adjust the Brightness, then Contrast Controls.
Access the Degauss Control through OSM.
Activate the Degauss Control. CAUTION: A
minimum interval of 20 minutes should exist
before the Degauss Function is used a second time.
Move electrical devices that may be causing
electrical interference away from the monitor.
Use the OSM Geometry Controls to straighten the
edges.
E - 13