Troubleshooting - NEC MultiSync LCD1990SXp Manuel D'utilisation

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Troubleshooting

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• 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. (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.
• Check the signal input, "DVI-D", "DVI-I", or "D-Sub".
• Ensure the DVI input mode is set to DIGITAL when the MAC digital output is
connected to the DVI-I connector.
• If the front LED is blinking amber, check the status of the IPM mode (see page 13).
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 side of the monitor.
Image Persistence
• Image persistence is when a residual or "ghost" image of a previous image
remains visible on the screen. Unlike CRT monitors, LCD monitors' image persistence
is not permanent, but constant images being displayed for a long period of time
should be avoided. To alleviate image persistence, turn off the monitor for as long
as the previous image was displayed. For example, if an image was on the monitor
for one hour and a residual image remains, the monitor should be turned off for one
hour to erase the image.
NOTE: As with all personal display devices, NEC DISPLAY SOLUTIONS recom-
mends using a moving screen saver at regular intervals whenever the screen is idle
or turning off the monitor when not in use.
Message "OUT OF RANGE" is displayed (screen is either blank or shows
rough images only)
• Image is displayed only roughly (pixels are missing) and OSM warning "OUT OF
RANGE" is displayed: Either signal clock or resolution is too high. Choose one of
the supported modes.
• OSM warning "OUT OF RANGE" is displayed on a blank screen:
Signal frequency is out of range. Choose one of the supported modes.
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