Originally Posted by Sheridan1952
If that "shadow" completely obscures the image, then it has to be inside the imaging chamber, in front of the imaging display. If the "shadow" only DARKENS that portion of the image, then the problem is in the light path BEFORE the imager, probably in the area of the color wheel/light tunnel.
You are not going to solve this by merely removing the lamp. The projector MUST be opened to find and correct (if possible) the problem.
This is great info for me, thanks. I've taken laptops apart before, but I have no clue about projectors. Maybe it's something very basic, like a piece of plastic which got shaken out of place.
The shadow darkens that portion of the image, although severely. It doesn't completely obstruct it.