Troubleshooting - NEC MultiSync P243W User Manual

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.
• 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.
• Check the signal input.
• If the front LED is blinking amber, check the status of the OFF MODE mode (see page 15).
• The monitor will automatically turn off by "POWER SAVE TIMER" or "OFF TIMER" function when it is working. Please
turn off "POWER SAVE TIMER" or "OFF TIMER".
Power Button does not respond
• Unplug the monitor's power cord from the AC outlet to reset the monitor.
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 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 COLOR VISION EMU is OFF.
• Make sure the PICTURE MODE setting is the same as the ICC profile on the PC.
• First, use the front POWER button to turn off the monitor. Then use the POWER button turn the monitor on while holding
RESET (PIP) and SELECT (INPUT) buttons at the same time. This will reset all color parameters to the factory setting.
This reset will take about 10 seconds and then the factory settings screen is displayed.
Color irregularities on screen
• Reduce BRIGHTNESS.
• Set UNIFORMITY to "5".
Moving image is not smooth
• When using a DVD player or any other type of high-definition device, consult the User's Manual included with the device
for detailed information on changing the signal from interlaced to progressive.
• Set RESPONSE IMPROVE to ON.
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.
The image is unstable, unfocused or swimming is apparent
• The 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 text looks garbled, change the video mode to non-interlaced and use the 60 Hz refresh rate.
LED on the monitor is not lit (no green, blue or amber color can be seen)
• The power switch should be in the ON position and the power cord should be connected.
• Increase the LED BRIGHTNESS adjustment.
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