Mitsubishi Electronics LDT422V manual Troubleshooting

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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 Index Features Declaration of Conformity Important InformationImportant Information Declaration of the Manufacturer DeclarationErgonomics Recommend UseContents Parts Name and Functions Buttons, Switch, and IndicatorExit Input MuteConnectors and Terminals Parts Name and FunctionsAnti-theft lock slot Description Wireless Remote ControlHow to Use the Wireless Remote Control How to install the batteriesHow to remove the batteries Preparation for use Determine the installation location 1Preparation for installationDo not Attempt to Install the LCD Monitor by Yourself To avoid the monitor from fallingInstalling and removing the stands 2Installing the monitorInstalling the main switch cover Using the wall mount or ceiling mountInstalling in the portrait position 2Installing the monitorHow to set-up Conditions3Installing the speakers Before connecting the signal cable to PC and VideoHow to install the optional speakers Wiring diagram 4Connection procedurePrevention of disconnection of Hdmi cable Before making connectionsConnecting with a computer analog connection 4Connection procedureConnection via the RGB2 in connector DVI-D Connecting with a computer digital connectionComponent device Connecting a video device component video/HDMI deviceEnglish-21 Connecting the power source 5Connecting the power cord to the monitorFlow of How to Using How to UseVolume control Schedule setting Remote controlPower Indicator Power Management Function1Turning on all the connected devices Turning on external devicesRGB1 RGB2 RGB3 RGB4 DVD/HD VIDEO-S Video 2Selecting the video input4Auto-setup 5Selecting the picture mode3Controlling the external devices 7Picture adjustment 6Screen adjustment9Schedule setting 8Volume controlHow to set up schedule 9Schedule setting10Remote control RS-232C Remote controlConnection Power OFF Ascii HEX Power onVolume UP Volume DownConfiguration of OSD screen Main menuSub menu screen Basic operation of OSD Configuration and basic operation of OSD screenPicture OSD screen functionsScreen OSD screen functionsAudio  Audio Reset Balance  TreblePIP Picture in Picture  OFF Timer CONFIGURATION1 CONFIGURATION1 Reset  ScheduleCONFIGURATION2 CONFIGURATION3 Advanced Option Other functions Other functions PIP, POP functionReference Troubleshooting IPS SpecificationsPin Assignment North America Asia PacificEurope