Nec 750F User Manual download pdf (Page 16)

Troubleshooting

No picture

• Display card should be completely seated in its slot.

• Power Button and computer power switch should be in the ON position.

• Signal cable should be completely connected to display card/computer

and monitor.

• Check connector for bent or pushed-in pins.

Image is scrolling or unstable

• Signal cable should be completely attached to the computer and monitor.

• Check pin assignments and signal timings of the monitor and your

display card with respect to recommended timings and pin assignments.

• If the Macintosh cable adapter is used, check for proper connection or

make sure the display card is Macintosh compatible and that the card is

properly seated in the computer.

LED on monitor is not lit

(no green, orange color can be seen)

• Power Switch should be in the ON position and power cord should

be connected.

Picture is fuzzy or color looks blotchy

• Adjust Brightness and Contrast Controls.

• Access the Degauss Control through OSD controls. Activate the

Degauss Control.

CAUTION: A minimum interval of 20 minutes should elapse before the

Deguass Control is used a second time when not switching

between modes.

Picture bounces or a wavy pattern is present

in the picture

• Move electrical devices that may be causing electrical interference away

from the monitor.

• See inside cover of User’s Manual for FCC information.

Edges of the display image are not square

• Use the OSD 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 OSD Size and Position Controls to adjust the image.

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Nec 750F User Manual Page 16