NEC 50MP1 user manual Troubleshooting, Symptom Checks Remedy

Page 56

Troubleshooting

If the picture quality is poor or there is some other problem, check the adjustments, operations, etc., before requesting service.

Symptom

Checks

Remedy

Picture is disturbed.

• Is a connected component set directly in

• Leave some space between the display and

Sound is noisy.

front or at the side of the display?

the connected components.

Remote control unit operates

 

 

erroneously.

 

 

 

 

 

The remote control unit does not work.

• Are the remote control unit’s batteries

• Replace both batteries with new ones.

 

worn out?

 

 

 

 

Monitor’s power does not turn on

• Is the monitor’s power cord plugged into a

• Plug the monitor’s power cord into a power

when the remote control unit’s power

power outlet?

outlet.

button is pressed.

 

 

• Are all the monitor’s indicators off?

• Press the power button on the monitor to

 

 

turn on the power.

 

 

 

 

• Are the remote control unit’s batteries

• Replace both batteries with new ones.

 

worn out?

 

 

 

 

Monitor does not operate when the

• Is the remote control unit pointed at the

• Point the remote control unit at the monitor’s

remote control unit’s buttons are

monitor, or is there an obstacle between

remote control sensor when pressing

pressed.

the remote control unit and the monitor?

buttons, or remove the obstacle.

 

 

 

 

• Is direct sunlight or strong artificial light

• Eliminate the light by closing curtains,

 

shining on the monitor’s remote control

pointing the light in a different direction, etc.

 

sensor?

 

 

 

 

 

• Are the remote control unit’s batteries

• Replace both batteries with new ones.

 

worn out?

 

 

 

 

 

• The remote cable is plugged into the

• Unplung the remote cable from the monitor.

 

REMOTE IN terminal (Wired).

 

 

 

 

 

• The front panel buttons of the main unit

• The front panel buttons do not function

 

do not function.

during Control Lock.

 

 

 

No sound or picture is produced.

• Is the monitor’s power cord plugged into a

• Plug the monitor’s power cord into a power

 

power outlet?

outlet.

 

 

 

Picture appears but no sound is

• Is the volume set at the minimum?

• Increase the volume.

produced.

 

 

• Is the mute mode set?

• Press the remote control unit’s MUTE button.

 

• Are the speakers properly connected?

• Connect the speakers properly.

 

 

 

 

• Is AUDIO INPUT set correctly?

• Set AUDIO INPUT on the OPTION menu

 

 

correctly.

 

 

 

Poor picture with VIDEO signal input.

• Improper control setting.

• Adjust picture control as needed.

 

Local interference.

Try another location for the monitor.

 

Cable interconnections.

Be sure all connections are secure.

 

Input impedance is not correct level.

 

 

 

 

Poor picture with RGB signal input.

• Improper control setting.

• Adjust picture controls as needed.

 

Incorrect 15 PIN connector pin

Check pin assignments and connections.

 

connections.

 

 

 

 

Tint is poor or colors are weak.

• Are the tint and colors properly adjusted?

• Adjust the tint and color (under “PICTURE”).

 

 

 

Nothing appears on screen.

• Is the computer’s power turned on?

• Turn on the computer’s power.

 

 

 

 

• Is a source connected?

• Connect source to the monitor.

 

 

 

 

• Is the power management function in the

• Operate the computer (move the mouse,

 

standby or off mode?

etc.).

 

 

 

Part of picture is cut off or picture is

• Is the position adjustment appropriate?

• Adjust the “SCREEN” properly.

not centered.

 

 

 

 

 

Image is too large or too small.

• Is the screen size adjustment

• Press the “WIDE” button on the remote

 

appropriate?

control unit and adjust properly.

 

 

 

Picture is unstable.

• Is the computer’s resolution setting

• Set to the proper resolution.

 

appropriate?

 

 

 

 

POWER/STANDBY indicator is

• Horizontal and / or vertical sync signal is

• Check the input signal.

lighted in orange or red.

not present when the Intelligent Power

 

 

Manager control is on.

 

 

 

 

POWER/STANDBY indicator is

• The temperature inside the main unit has

• Promptly switch off the power of the main

blinking in red.

become too high and has activated the

unit and wait until the internal temperature

 

protector.

drops. See*1.

 

 

 

POWER/STANDBY indicator is

——————

• Prompty switch off the power of the main

blinking in green.

unit. See *2.

 

 

 

 

*1 Overheat protector

If the monitor becomes too hot, the overheat protector will be activated and the monitor will be turned off. If this happens., turn off the power to the monitor and unplug the power cord. If the room where the monitor is installed is particularly hot, move the monitor to a cooler location and wait for the monitor to cool for 60 minutes. If the problem persists, contact your NEC dealer for service.

*2 In the following case, power off the monitor immediately and contact your dealer or authorized NEC Center.

The monitor turns off 5 seconds after powering on and then the POWER/STANDBY indicator blinks. It indicates that the power supply circuit or, one or more fans have been damaged.

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Contents User’s Manual Precautions Important InformationTo avoid damage and prolong operating life Précautions DOC avis de conformationMises en garde et précautions de sécurité AvertissementRemarque Limited Warranty Plasma Monitors Contents How to Attach Options to the Plasma Monitor Ventilation Requirements for enclosure mountingFeatures you’ll enjoy include Contents of the PackageIntroduction Introduction to the PlasmaSync 50MP1 Plasma MonitorPart Names and Function Front ViewRear View/ Terminal Board RGBRemote Control Unit RGB/PCBattery Installation and Replacement 5MULTIUsing the wired remote control mode Handling the remote control unitOperating Range Approx 7m/ 23ftInstallation Personal computer with a digital RGB outputConnecting Your Document Camera Connecting Your VCR or Laser Disc PlayerConnecting Your DVD Player Connections with Equipment that has a Digital InterfaceExternal Speaker Connections Right LeftPin Assignments and Signal Levels for 15 pin RGB Analog RGBBasic Operations To set the off timer To cancel the off timerAfter the power is turned off with the off timer To check the remaining timeWhen watching videos or digital video discs When watching high definition video sourceWide Operations Watching with a wide screen manualWhen Picture Size is set to OFF  Supported resolution Picture Size setting Watching computer images with a wide screenSelecting the input signals to be displayed Adjusting the OSM controlsMulti Screen Operations Showing a couple of pictures on the screen at the same timeOSMOn Screen Menu Controls Menu OperationsMain menu Sub menu Functions Picture Settings Menu Adjusting the picture Picture adjustment screen  Adjusting the computer imageExample Setting the Theater mode  Types of picture modesSetting the color temperature Example SettingOnce the setting is completed  Setting the color temperature Adjusting the white balance Adjusting the color to the desired qualityExample Adjusting the White Balance Example Setting NR-3 Reducing noise in the picture NR  Types of noise reductionSound Settings Menu Adjusting the treble, bass and left/right balanceExample Adjusting the bass  Sound settings menuScreen Settings Menu Adjusting the Position, Size, Fine Picture, PictureAdjExample Adjusting the vertical position in the normal mode When Auto Picture is OFFFunction Settings Menu Setting the on-screen displayAdjusting the position of the menu display Example Adjusting the position of the menu displayTo adjust the position Adjusting the position of the menu displaySetting the power management for computer images Example Turning the power management function onPower management function Power management settingsPOWER/STANDBY indicator Description Turning the picture back onSetting the picture to suit the movie Example Adjusting the Gray LevelExample Setting the Cinema Mode to OFF Cinema ModeSetting RGB3 ADJ Example Setting PLE to LockWhen you adjust the RGB3 ADJ Reducing burn-in of the screenResetting to the default values PLEOrbiter InverseOption Settings Menu Setting the allocation of the audio connectorsSetting the BNC connectors Audio InputSetting a computer image to the correct RGB select screen Example Setting the RGB Select mode to MotionTo set the RGB select mode to Motion BNC SelectSetting high definition images to the suitable screen size Example Setting the 1080B mode toRGB Select modes HD Select modesSetting the picture size for RGB input signals Example Setting the on mode to OFFInformation Menu Picture SizeSetting the language for the menus Setting the video signal formatExample Setting the menu display to Deutsch Example Setting the video signal format to 3.58 NtscVideo signal formats NtscType of connector D-Sub 9-pin male External ControlApplication ConnectionsCommand Check Sum CKS, Error Processing, and ACKCommunication Format Unit ID 1 and Unit IDCommand Reference List Audio Mute On Audio Mute OffOSM Select Color Gain DataInput Mode Request Sharpness Gain DataContrast Gain Data Bright Gain DataRED Gain Data Green Gain DataBlue Gain Data Multi Screen SelectVideo ADJ Request Failure Mode Request Audio Select SetAudio Select Request Long Life SetComputer input signals supported by this system Table of Signals SupportedSupported resolution Page Troubleshooting Symptom Checks RemedySpecifications SignalsPage Page NEC T
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