NEC LCD2070WNX user manual Troubleshooting, Appendix

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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 back side of the monitor.

Image Persistence

Please be aware that LCD Technology may experience a phenomenon known as Image Persistence. Image Persistence occurs 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 recommend displaying moving images and using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use.

Image is unstable, unfocused or swimming is apparent

Signal cable should be completely attached to the computer.

Use the OSM Image Adjust controls to focus and adjust display by increasing or decreasing the fine total. When the display mode is changed, the OSM Image Adjust settings may need to be re-adjusted.

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 colour can be seen)

Power Switch should be in the ON position and power cord should be connected.

Check the Vacation Switch should be in the ON position.

Make sure the OSM LED Brightness Control is at the proper setting.

Display image is not sized properly

Use the OSM Image Adjust controls to increase or decrease the H. SIZE.

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.)

No Video

If no video is present on the screen, turn the vacation switch off and on again.

Make certain the computer is not in a power-saving mode (touch the keyboard or mouse).

USB Hub does not operate

Check to make sure the USB cord is properly connected. Refer to your USB device User’s manual.

Appendix

If you need detailed information about the controls, please use the advanced menu.

<How to use the advanced menu>

Turn off your monitor.

Turn on your monitor by pushing the “POWER” and “SELECT” button at the same time for at least one second simultaneously.

You will see the Advanced menu.

<How to exit the advanced menu>

Turn off and restart your monitor in the normal way.

Tag1

Auto Black Level (Analog input only)

Automatically adjusts the black level.

 

 

 

 

Black Level (Analog input only)

Manually adjusts the black level.

 

 

 

 

 

English-15

English

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Contents MultiSync LCD2070WNX English-17 IndexEnglish-1 DeclarationDeclaration of Conformity Canadian Department of Communications Compliance StatementFCC Information English-2Contents English-4 Quick StartEnglish-5 Figure C.4Tilt and Swivel Raise and Lower Monitor ScreenRemove Monitor Stand for Mounting English-6English-7 Flexible Arm InstallationBrightness/Contrast Controls Auto Adjust Analog input onlyControls Colour Control System Image Controls Analog input onlyTools Menu ToolsEnglish-10 InformationOSM Warning English-11 Safety Precautions and MaintenanceRecommended use Cleaning the Cabinet Cleaning the LCD PanelErgonomics To avoid scratchesEnglish-13 SpecificationsMonitor Specifications MultiSync LCD2070WNX Monitor English-14 FeaturesAppendix TroubleshootingEnglish-16 TCO’03 CongratulationsDisposing of your old NEC product Manufacturer’s Recycling and Energy Information