NEC X552SAVT, X462SAVT user manual Troubleshooting, English-39

Page 41

Troubleshooting

English

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.

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 main Power 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 recommends 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 OSD Image Adjust controls to focus and adjust display by increasing or decreasing the fi ne adjustment. When the display mode is changed, the OSD 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.

Image of component signal is greenish

Check to see if the DVD/HD input connector is selected.

LED on monitor is not lit

(no green or red color can be seen)

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.

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

Check to see that the power indicator option in the OSD is set to ON.

RED LED on monitor is blinking

A certain failure might have occurred, please contact your nearest authorized NEC DISPLAY SOLUTIONS service facility.

If the monitor is powered off by the inside temperature being higher than the normal operating temperature, a RED LED will blink six times. Power on the display again after confi rming the inside temperature has been reduced to normal operation temperature.

Display image is not sized properly

Use the OSD Image Adjust controls to increase or decrease the coarse adjustment.

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.)

Selected resolution is not displayed properly

Use OSD Display Mode to enter Information menu and confi rm that the appropriate resolution has been selected. If not, select corresponding option.

No Sound

Check to see if audio cable is properly connected.

Check to see if mute is activated.

Check to see if volume is set at minimum.

Check to see if computer supports an audio signal through DisplayPort.

If unsure, contact the computer manufacturer.

Check to see if SURROUND is ON.

Check Internal/External speaker switch.

Remote Control is not available

Check the Remote Control’s batteries status.

Check if batteries are inserted correctly.

Check if the Remote Control is pointing at the monitor’s remote sensor.

Check the Remote Control Mode status.

The remote control system may not function when direct sunlight or strong illumination strikes the remote control sensor of the LCD monitor, or when there is an object in the path.

“SCHEDULE”/“OFF TIMER” function is not working properly

The “SCHEDULE” function will be disabled when the “OFF TIMER” is set.

If the “OFF TIMER” function is enabled and the power to the LCD monitor is turned off when the power supply is interrupted unexpectedly, then the “OFF TIMER” will be reset.

Snowy Picture, Poor Sound in TV

Check antenna/cable connection. Use new cable if necessary.

Interference in TV

Check components for shielding, move away from monitor if necessary.

RS-232C or LAN control is not available

Check RS-232C or LAN cable connection.

Check “CONTROL” setting in “EXTERNAL CONTROL”.

Check the “ID=ALL REPLY” setting in “EXTERNAL CONTROL”.

Either light vertical or horizontal stripes may appear, depending on the specifi c display pattern. This is no product fault or degradation.

English-39

Image 41
Contents User’s Manual Declaration of Conformity IndexEnglish-1 Canadian Department of Communications Compliance StatementFCC Information English-2 Important InformationCleaning the Cabinet Cleaning the LCD PanelRecommended Use ErgonomicsContents Mounting InstallationPlease note the following when mounting on wall or ceiling Attaching Mounting Accessories Installing and removing optional table top stand Using Wall Mount AdapterVentilation Requirements Prevent TippingEnglish-8 Attaching optional external speaker X401SEnglish-9 Attaching optional external speaker X462S/X552SControl Panel Parts Name and FunctionsTerminal Panel Wireless Remote Control Handling the remote control Operating Range for the Remote ControlDetermine the installation location SetupInstall the remote control batteries Connect the supplied power cordAdjust the sound Switch on the power of all the attached external equipmentAdjust the screen See pages 22 Adjust the image SeeConnections Wiring DiagramBefore making connections English-16Connecting a DVD Player or Computer with Hdmi out Connecting a Personal ComputerConnecting a Computer with DisplayPort English-17English-18 Power on and OFF ModesBasic Operation Using Power Management Power IndicatorSelecting a video source Picture AspectAmbient Mode Picture ModeAmbient parameter setting Information OSDEnglish-21 OSD On-Screen-Display ControlsEnglish-22 AdjustPicture English-23 AudioSchedule English-24 PIPOSD English-25 Multi DisplayEnglish-26 Display ProtectionEnglish-27 Advanced OptionEnglish-28 English-29 Image Sticking of LCD PanelRecommendations English-30 Remote Control FunctionEnglish-31 English-32 ConnectionEnglish-33 Function Monitor ID = Code DataNetwork Setting by Using an Http Browser Connecting to a NetworkControlling the LCD monitor via LAN Control OverviewPreparation Before Use Network SettingsHandling of the Address for Operation via a Browser English-35English-36 Alert Mail SettingEnglish-37 Alert error message listOSD Display PROTECTION-FAN CONTROL-COOLING FAN = AutoEnglish-38 FeaturesEnglish-39 TroubleshootingEnglish-40 Specifications X401SProduct Specifications English-41 Specifications X462SEnglish-42 Specifications X552SEnglish-43 Pin AssignmentDisposing of your old NEC product Manufacturer’s Recycling and Energy InformationEnergy Saving Weee Mark European Directive 2002/96/EC