3M MP7720 - Manual (Page 29)


7URXEOHVKRRWLQJ
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.
26 3M ™
Personal Projector MP7720
© 3M IPC 2000
Table of Contents