Mitsubishi Electronics MDT651S manual Troubleshooting

Page 59

Troubleshooting

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The signal cable should be securely connected to the display card/computer.

The display card should be securely seated in its slot.

The Main Power Switch and the computer power switch should be in the ON position.

Make sure that the correct mode has been selected on the display card or system being used. (Please consult the display card or system manual to change the graphics mode.)

Check the monitor and your display card with respect to the compatibility and recommended settings.

Check the signal cable connectors 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.

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 display devices, MITSUBISHI ELECTRIC 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 securely 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 re-adjusted.

Check the monitor and your display card with respect to the compatibility and recommended signal timings.

If the displayed text is garbled, change the video mode to the non-interlace mode and use 60 Hz refresh rate.

Image of component signal is greenish

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

LED on the 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.

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

RED LED on the monitor is blinking

A certain failure may have occurred. Please contact your nearest authorized MITSUBISHI ELECTRIC service facility.

Displayed image is not sized properly

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

Make sure that the correct mode has been selected on the display card or system being used. (Please consult the display card or system manual to change the graphics mode.)

Selected resolution is not displayed properly

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

No sound

Check to see if the speaker cable is properly connected.

Check to see if the mute is activated.

Check to see if the volume is set to the minimum level.

Wireless remote control is not available

Check the wireless remote control’s batteries status.

Check if the batteries are inserted correctly.

Check if the wireless remote control is pointing at the monitor’s remote sensor.

“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 if the power supply is interrupted unexpectedly, then the “OFF TIMER” will be reset.

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

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Contents LCD Display Monitor Page English Page Index Features Declaration of Conformity Important InformationImportant Information Declaration of the Manufacturer DeclarationErgonomics Recommend UseContents Front Rear Control buttons Buttons, Switch, and IndicatorParts Name and Functions Video Connectors and TerminalsParts Name and Functions Anti-theft lock slotDescription Wireless Remote ControlHow to remove the batteries How to Use the Wireless Remote ControlHow to install the batteries GND CAT5 Tx BOXFrontRear Flow of preparation Preparation for useDo not Attempt to Install the LCD Monitor by Yourself 1Preparation for installationDetermine the installation location Lay the screen face down Installing the monitorUsing the monitor without the bezel Conditions 2Installing the monitorInstalling in the portrait position How to set-upHow to install the optional speakers Before connecting the signal cable to PC and VideoBefore making connections 4Connection procedureWiring diagram Prevention of disconnection of Hdmi cableSecond monitor connection 4Connection procedureConnecting with a computer analog connection Analog connection Connection via RGB3 in D-SUB connectorConnection via the RGB6 in connector DisplayPort Connecting with a computer digital connectionFactory preset timing Connection via the RGB2 in connector DVI-DDVD player Component device Connecting a video device component video/HDMI deviceVideo device Composite video/S video device Connection to one monitor Connecting CAT5How to install Installation to Windows XP Installation to Windows VistaCAT5 EQ 5Connecting CAT5Allowable cable length Monitor control via RS-232C Connecting RS-232CMonitor connection using LAN 7Connecting LANConnecting the power source 8Connecting the power cord to the monitorFlow of How to Using How to UseTurning on external devices Power Management FunctionPower Indicator 1Turning on all the connected devices2Selecting the video input 4Selecting the OSD language 3Controlling the external devices6Selecting the picture mode 5Auto-setup8Picture adjustment 7Screen adjustment10Schedule setting 9Volume controlHow to set up schedule 10Schedule settingRS-232C/RS-485 Remote control 11Remote controlRemote control LAN Remote control 11Remote controlOperation buttons Key guide Sub menu Adjustment items Adjustment statusConfiguration of OSD screen Main Menu Screen Main menuBasic operation of OSD Configuration and basic operation of OSD screenPicture OSD screen functionsPrimary Picture ResetOSD screen functions Auto BrightnessScreen Treble Audio ResetAudio BalancePIP Picture in Picture CONFIGURATION1 CONFIGURATION2 Monitor Information ScheduleDate and Time Advanced Option Heat Status Power on DelayTerminal Setting Advanced Option ResetPicture size Picture modeControl Lock mode Other functionsTo use a computer to control the monitors Other functionsSupplemental information of the auto brightness function To control multiple monitors collectivelyPIP Size Small PIP, POP functionPIP POP Side by Side OFF Aspect Full ReferenceRemote control numbering function Troubleshooting Vesa DPM Vesa DDC2B, DDC/CI SpecificationsPin Assignment Pin Assignment