NEC MultiSync EA271Q-WH, User Manual

English-28

Troubleshooting

No picture

•฀

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฀

page 15

) or HUMAN SENSING 

(see 

page 16

).

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.