NEC MultiSync V520, User'S Manual And Safety Manual

Page: 18 / 33

E-14
Troubleshooting
No Picture
• The display 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 display
card/computer.
• Check the connector for bent or pushed-in pins.
Image is scrolling or unstable
• Signal cable should be completely attached to the computer.
• Check the pin assignment and signal timing of your monitor
and display card with respect to the recommended timing and
pin assignment .
• If the MAC adapter is used, check for proper connection or
make sure the display card is MAC compatible and that the
card is properly seated in the computer.
LED on the monitor is not lit
(no green, orange or yellow color can be seen)
•
Power Switch should be in the ON position and the power cord
should be connected.
Picture is fuzzy or Color looks blotchy
• Adjust the Brightness and 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.
Picture bounces or a waving pattern is present in the picture
• Move electrical devices that may be causing electrical
interference away from the monitor.
Edges of the display image are not square
• Use the OSM Geometry Controls to straighten the edges.
• If possible, position the front of the monitor facing east.
Display image is not centered, too small, or too large
• Use the OSM Size and Position controls to adjust the image.