3M MP7720 Owner's Manual download pdf (Page 29)

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Common Problems & Solutions

PROBLEMS TRY THESE SOLUTIONS

NO POWER

• Plug the power cord into the AC Inlet.

• Plug the power cord into the power Inlet.

• Wait two minutes after the projector has been turned off

before turning the projector back on.

NO PICTURE

• Check that you have selected the proper input source.

• Ensure all cables are connected properly.

• Adjust the brightness and contrast.

• Remove the lens cap.

IMAGE ISN’T SQUARE

ON THE SCREEN

• Reposition the unit to improve its angle on the screen.

• Use the keystone correction function key on the control

panel of the projector or the remote control unit.

POOR COLOR

• Select the correct video system.

• Adjust brightness, contrast, or saturation.

IMAGE IS BLURRED

• Press the Auto key on the control panel of the projector

or the remote control unit to get better picture quality.

• Adjust the focus.

• Reposition the unit to improve its screen angle.

• Ensure the distance between the unit and screen is

within the adjustment range of the lens.

REMOTE CONTROL

DOESN’T WORK

• Replace the battery with a new one.

• Make sure there is no obstacle between the remote

control and the unit.

• Stand within 4 meters (13 feet) of the unit.

• Make sure nothing is blocking the receiver on the control

pad.

™

Personal Projector MP7720

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3M MP7720 Owner's Manual Page 29