If the projected image contains electronic interference (noise) or static, try the following solutions:
Check the cables connecting your computer or video source to the projector. They should be:
Separated from the power cord to prevent interference
Securely connected at both ends
Not connected to an extension cable
Check the settings in the projector's Signal menu to make sure they match the video source.
If available for your video source, adjust the Deinterlacing and Noise Reduction settings in the projector's Image menu.
Image >
Image Enhancement
>
Noise Reduction
Image >
Image Enhancement
>
Deinterlacing
Select Auto as the Resolution setting in the projector's Signal menu. (PowerLite 994F)
Select a computer video resolution and refresh rate that are compatible with the projector.
If you are projecting from a computer using a VGA computer cable, adjust the Tracking and Sync. settings in the projector's Signal menu. (PowerLite 994F)
If you adjusted the image shape using the projector controls, try decreasing the Sharpness setting in the projector's Image menu to improve image quality.
If you connected an extension power cable, try projecting without it to see if it caused interference in the signal.