3M
™
Mobile Projector MP225a
© 2011 3M. All Rights Reserved.
25
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Troubleshooting
The projector will not turn on.
•
The battery is not properly installed, or the power adapter is not connected to
the projector and a working wall outlet. Test the electrical outlet by plugging
another electrical device (like a radio) into the wall outlet to confirm that the
wall outlet works.
•
Attempt to remove and replace the battery.
•
Hold down the power button until the projector powers up.
The status indicator is flashing red when the power button is held down.
•
The battery needs to be charged or reinstalled. See “” on page 11.
The image is not visible or is very dim.
•
The 3M MP225a Projector is a battery-operated device and requires
controlled lighting conditions. The image may appear very dim in brightly lit
rooms.
•
Make sure the status indicator is green. This indicates that the projector is
powered on and projecting an image.
•
Project the image onto a flat, white surface.
•
Decrease the light on the surface where the image is being projected.
•
Decrease the size of the image.
•
When there is nothing connected to the projector, it will project the startup
screen.
The projector is displaying a question mark.
•
The projector does not support the video or computer input signal. Switch to
a signal that the projector supports. See “Supported Computer Signals” on
page 28.
A computer is connected to the projector but the projector will not display
the computer’s image.
•
Plug the VGA-audio cable into the projector and the icon in the upper-left
corner of the image will display the “VGA-Audio cable” icon. See “On Screen
Icons” on page 21.
