3M CP40 用户手册

If your projector does not seem to be functioning properly, check the items below before you 

contact an authorized service center.

The projector can not be 

turned on.

•  Ensure the battery is fully charged or the AC power adapter 

is properly connected.

The projected image is 

too dark.

•  Use the projector in a darker environment.
•  Increase the brightness by using the AC power adapter.
•  Project the image on a flat, white surface.
•  Decrease the size of projected image.

The projected image 

is dim.

•  Adjust the focus. Please refer to “Adjusting the Focus” 

section.

•  Check if the lens is dirty.
•  Replace with an image of higher resolution.

The image is not played.

•  Ensure the image format is compatible. 
•  Replace with another file or memory card.
•  Convert the file with the attached AMC software.

No image is projected 

when an AV device is 

connected.

•  Ensure the connected device is equipped with AV-out 

function.

•  Check if the AV Cable is connected, and the projector is 

switched to AV-in function.

•  Check if the AV Cable is plugged correctly.

The surface temperature 

of projector feels warm.

It is normal for this projector to generate moderate heat 

during normal operation.  Always keep the ventilation slots 

free of dirt or obstructions and operate the projector in a 

properly ventilated environment.