Mitsubishi Electronics M557 User Manual download pdf (Page 22)

English-18

Troubleshooting

No Picture

• The display card should be completely seated in its slot.

• Power Switch and computer power switch should be in the ON

position.

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

computer.

• Check the connector for bent or pushed-in pins.

Image is scrolling or unstable

• Signal cable should be completely attached to the computer.

• Check the pin assignment and signal timing of your monitor and

display card with respect to the recommended timing and pin

assignment.

• If the MAC adapter is used, check for proper connection or make sure

the display card is MAC compatible and that the card is properly

seated in the computer.

LED on the monitor is not lit (no green or orange colour can be seen)

• Power Switch should be in the ON position and the power cord should

be connected.

Picture is fuzzy or Colour looks blotchy

• Adjust the Brightness and Contrast Controls.

• If the picture is fuzzy, adjust the Moire Canceler Control.

• Access the Degauss Control through OSD.

Activate the Degauss Control.

CAUTION: A minimum interval of 20 minutes should exist before the

Degauss Function is used a second time.

Picture bounces or a waving pattern is present in the picture

• Move electrical devices that may be causing electrical interference

away from the monitor.

Edges of the display image are not square

• Use the OSD Geometry Controls to straighten the edges.

• If possible, position the front of the monitor facing east.

Display image is not centered, too small, or too large

• Use the OSD Size and Position controls to adjust the image.

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Mitsubishi Electronics M557 User Manual Page 22