English-30
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 main power switch, it should be in the ON position.
• Power switches for the monitor and computer should be in the ON position.
• 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 automatically goes into standby at the preset time period after the video signal was lost. Press the button on
the monitor.
Power Key does not respond
• Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor.
• Check the main Power Switch 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 recommends using a moving screen saver at
regular intervals whenever the screen is idle, or turning off the monitor when not in use.
Picture is discolored
• Make sure “3D LUT Emulation” and “Color vision emulation” are “Off”.
• Make sure the “Picture mode” setting is the same as the ICC profile on the PC.
Color irregularities on screen
• Reduce “
Luminance”.
• Set “Uniformity” to “5”.
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 range” is displayed: Either signal clock or
resolution is too high. Choose one of the supported modes.
• An OSD warning “Out of range” is displayed on a blank screen: Signal frequency is out of range. Choose one of the
supported modes.
The image is unstable, unfocused or swimming is apparent
• The signal cable should be completely attached to the computer.
• Check the monitor and your display card with respect to compatibility and recommended signal timings.
• If text looks garbled, change the video mode to non-interlaced and use 60 Hz refresh rate.
LED on monitor is not lit
• The power switch should be in the ON position and power cord should be connected.
• Check the main power switch, it should be in the ON position.
•
Increase “LED Brightness” adjustment.
Picture is not as bright
• Make sure “ECO mode” is “Off” and “Power delivery limit” is “15W” or “20W”.
• LCD brightness degradation occurs due to long-term usage or extreme cold conditions.
• When the display cannot achieve the desired brightness, the numerical brightness value on the OSD will be yellow.
• When using an HDMI input, please change the “Video range”.
LED colors, except for blue, are blinking or glowing
• A certain failure might have occurred, please contact your supplier.
• If the monitor is powered off by the internal temperature being higher than the normal operating temperature, the LED will
blink red for five or six times. Power on the monitor again after confirming the internal temperature has been reduced to
normal operation temperature.
• The monitor could be in standby. Press the power switches on the monitor.
• If the LED blinks red during firmware updating, turn off and on the main power switch and update again.
