Mitsubishi Electronics MDT521S user manual Troubleshooting

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Troubleshooting

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

The display card should be completely seated in its slot.

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.

If nothing is displayed on the screen when HDCP device is connected, reset the power of the device.

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 personal 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 completely attached to the computer.

Use the OSD Image Adjust controls to focus and adjust 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 compatibility and recommended signal timings.

If your text is garbled, change the video mode to non-interlace 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 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 a power-saving mode (touch the keyboard or mouse).

RED LED on monitor is blinking

A certain failure might have occurred, please contact your nearest authorized MITSUBISHI ELECTRIC service facility.

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 confirm that the appropriate resolution has been selected. If not, select corresponding option.

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Contents LCD Display Monitor Index HOW to Setup ScheduleDeclaration of Conformity Important InformationDeclaration of the Manufacturer DeclarationErgonomics Recommended UseContents Parts Name and Functions Buttons, Switch, and IndicatorCAT5 input/output connectors modular con- nector 8 pin Connectors and TerminalsPicture Mode button Wireless Remote ControlOperating Range for the Remote Control Handling the remote controlCAT5 Tx BOX Setup Procedure Recommended Adjustment Adjust the soundAdjust the screen See pages Adjust the image SeeConnection of the CAT5 video connec- tion function When MDT521S is installed in portrait positionCAT5 video connection LandscapeCAT5 EQ Various settings involved in the CAT5 video connectionConnection to multiple monitors Allowable cable lengthUpright position Lay the screen face down Ventilation Requirements for enclosure mountingTo avoid monitor from falling Hdmi Wiring DiagramConnections Before making connectionsConnect the LCD Monitor to a Personal Computer Connecting a Personal ComputerConnecting with Digital Interface Equipment Connect the LCD Monitor to a Computer with a Digital OutputDVI-D Connect the LCD Monitor to a DVD Player BNC-RCARCA DVI-D Hdmi BNC Connecting to a VCR / Stereo AmplifierConnect the LCD Monitor to a VCR / Stereo Amplifier BNC RCAUsing the remote control Power on and OFF ModesPressing the Main Power Switch Pressing the power buttonAudio Source Switching Power IndicatorUsing Power Management Picture ModeVIDEOS, Video Information OSDRGB1, 2, 3, 4 DVD/HDOSD On-Screen-Display Controls Picture Picture Reset Auto BrightnessFront Sensor Select on for normal use Screen PIP Picture in Picture AudioConfiguration RS485 Termination OFF TimerCAT5 Cable Length Serial ControlTiling Film ModeAdvanced Option IR ControlAdvanced Option Reset Power on DelayHdmi Input Mode DVI Input ModeHOW to Setup Schedule Image PersistenceRecommendations PIP, POP and Side by Side Supplemental information of the auto brightness functionTo control multiple monitors collectively To use a computer to control the monitors Remote control numbering functionInterface Control command diagramOperation commands Read commandControl sequence Features Troubleshooting No Sound Remote Control is not availableSCHEDULE/OFF Timer function is not working properly No Signal is displayed on the screenSpecifications MDT521S SpecificationsPin Assignment Mini DIN 4P GNDRXD TXD GND RTS CTS Mitsubishi Contact Information North AmericaEurope