English-28
Troubleshooting
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• Make sure the signal cable is fully connected to both the monitor and the computer.
• Make sure the computer’s display card is fully seated in its slot.
• Do not use a DisplayPort converter adapter. This device is not supported.
• Make sure both the computer and monitor power switches are in the ON position.
• The monitor will automatically turn off by the “POWER SAVE TIMER” function when the “POWER SAVE TIMER” setting
is “ON” and continues in power save mode for 2 hours. Please touch the power key.
• Make sure that a Major Supported Timings has been selected for the display card in the system being used.
(Please consult the manual for the system or display card for supported resolution and changing the settings).
• 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.
• Make sure the connected device outputs a signal to the monitor.
• If the front LED is dark blue, check the status of the OFF MODE SETTING mode (see
) or HUMAN SENSING
Power Key does not respond
• Unplug the monitor power cable from the AC outlet to turn off and reset 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 recommends 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)
• OSD warning “OUT OF RANGE” is displayed on a rough image (pixels are missing): Either the signal clock or resolution
is too high. Change the settings to a supported mode.
• OSD warning “OUT OF RANGE” is displayed on a blank screen: The signal frequency is out of range. Change the
settings to a supported mode.
Image is unstable, unfocused or swimming is apparent
• Signal cable should be completely attached to the computer.
• Use the OSD Image Adjust controls to focus and adjust the display by increasing or decreasing the fine adjustment.
When the display mode is changed, the OSD Image Adjust settings may need to be readjusted.
• Check the monitor and your display card with respect to compatibility and recommended signal timings.
• If your text is garbled, change the video mode to non-interlace and use 60Hz refresh rate.
LED on monitor is not lit (no blue or amber color can be seen)
• Power Switch should be in the ON position and power cord should be connected.
• Increase LED BRIGHTNESS adjustment.
Picture is not bright
• Make sure ECO MODE and AUTO BRIGHTNESS are turned off.
• If the brightness fluctuates, make sure AUTO BRIGHTNESS is turned off.
• Signal cable should be completely attached.
• LCD brightness degradation occurs due to long-term usage or extreme cold conditions.
• When using an HDMI input, please change “VIDEO LEVEL”.
• If the brightness fluctuates, make sure DV MODE is set to STANDARD.
Display image is not sized properly
• Use the OSD Image Adjust controls to increase or decrease the Coarse adjustment.
• Make sure that a Major Supported Timings has been selected for the display card in the system being used.
(Please consult the manual for the system or display card for supported resolution and changing the settings.)
• When using an HDMI input, please change “OVER SCAN”.
• Please check “TILE MATRIX” and “180° ROTATE” settings.
