NEC MultiSync LCD1550ME Service Manual page 27

Troubleshooting
No picture
• The signal cable should be completely connected to the display card/
computer.
• The display card should be completely seated in its slot.
• Check the Vacation Switch should be in the ON Position. Front power
Switch and computer power switch should be in the ON position.
• Check to make sure that a supported mode has been selected on the
display card or system being used. (Please consult display card or
system manual to change graphics mode.)
• Check the monitor and your display card with respect to compatibility
and recommended settings.
• Check the signal cable connector for bent or pushed-in pins.
Power Button does not respond
• Unplug the power cord of the monitor from the AC outlet to turn off
and reset the monitor.
• Check the Vacation Switch on the left hand side of the monitor.
Image persistence
• Image persistence is when a "ghost" of an image remains on the
screen even after the monitor has been turned off. Unlike CRT
monitors, LCD monitors' image persistence is not permanent.
To alleviate image persistence, turn the monitor off for as long as an
image was displayed. If an image was on the monitor for one hour
and a "ghost" of that image remains, the monitor should be turned off
for one hour to erase the image.
NOTE: As with all personal display devices, NEC-Mitsubishi Electronic
Displays recommends using a screen saver at regular intervals
whenever the screen is idle.
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