Chapter 3
Troubleshooting
This Chapter IncludesN
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Screen Image and Video Signal Issues
No picture
• Make sure the signal cable is fully connected to the monitor and the computer.
• Make sure there is no DisplayPort converter adapter connected. The monitor does not support DisplayPort converter adapter.
• Make sure the computer’s display card is completely seated in its slot.
• Make sure both the computer and monitor are powered on.
• Make sure that a supported resolution has been selected on the display card or system being used. If in doubt, please refer to the user’s manual of the display controller or system to change the resolution.
• Check the monitor and your display card with respect to compatibility and recommended signal timings.
• Check the signal cable connector for bent or pushed-in pins.
• The monitor may be in power saving mode. The monitor automatically goes into standby at the preset time period after the video signal is lost. Press the button on the monitor.
• Make sure the connected device outputs a signal to the monitor.
The image is unstable, unfocused or swimming is apparent
• Make sure the signal cable is fully connected to the monitor and the computer.
• Use the OSD Image Adjust controls to focus and adjust the display by increasing or decreasing the [FINE] adjustment. hen 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.
The image is not properly reproduced
• Use the OSD to enter the [INFORMATION] menu and confirm that the appropriate resolution has been selected.
• Use the [AUTO ADJUST] functions. (Analog input only).
Picture is not bright
• Make sure [ECO MODE] is [OFF].
• Make sure the signal cable is fully connected to the monitor and the computer.
• LCD brightness degradation occurs due to long-term usage or extreme cold conditions.
• If the brightness fluctuates, make sure [DV MODE] is set to [OFF].
Selected resolution is not displayed properly
• If the resolution you set is over or under a range, “OUT OF RANNE” window will appear then warn you. Please set supported resolution at the connected computer.
Brightness variations over time
• Change [DV MODE] to [OFF] and adjust brightness.
NOTE:
hen [DV MODE] is set to [ON], the monitor automatically adjusts brightness based on the video signal.
No Video
• If no video is present on the screen, turn the button off and on again.
• Make sure the computer is not in a power-saving mode by touching the connected keyboard or the connected mouse.
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Hardware Issues
button does not respond
• Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor.
Message “OUT OF RANGE” is displayed (screen is either blank or shows rough images only)
• Image is displayed roughly (pixels are missing) and an OSD warning “OUT OF RANNE” is displayedN Either signal clock or resolution is too high. Choose one of the supported modes.
• An OSD warning “OUT OF RANNE” is displayed on a blank screenN Signal frequency is out of range. Choose one of the supported modes.
LED on monitor is not lit
• Make sure the power cord is properly connected to the monitor and the wall, and make sure the monitor’s power button is on.
• Set [POER INDICATOR] is [ON].
No Sound
• Check to see if speaker cable is properly connected.
• Check to see if [MUTE] is activated.
• Check to see if [VOLUME] is set to a minimum.
• Check to see if the computer supports an audio signal through DisplayPort or HDMI.
• Check selected [SOUND INPUT] when DisplayPort or HDMI is in use.
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, the image persistence on LCD monitors is not permanent, but single still image 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.
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