Question about InFocus ScreenPlay 4805 Multimedia Projector

3 Answers

4805 i have a 1 ft wide shadow going down the length of the screen on the right side, what can this be and is it fixable?

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  • Anonymous Nov 25, 2007

    I have same problem. Took out bulb and lenses blew everything out. Still have shadow. I contacted infocus, waiting for reply.

  • tocarpen Dec 10, 2007

    thanks. I am probably going to get it replaced.

  • Anonymous Dec 18, 2007

    I have the same problem, only the shadow runs from top to bottom on the left side of the screen. I have had the projector for about 4 years and I thought it must be time to replace the bulb. It did not help and now the picture is not as bright as it use to be also. Bulb replaced 12/17/07 I would appreciate any advice.

    thank you



3 Answers

I took the projector ap part and found that the square box / glass pris-sim had come ap-part. I also cleaned the color wheel. The picture is back to normal. I used 60 sec epoxy to put the square box back together.

Posted on Dec 18, 2007


Is your projector ceiling mounted? This is a common problem with these projectors, I am assuming that this projector is ceiling mounted because the shadow would be on the left if it is the right way up. This is caused by the light tunnel (a sort of hollow box made of mirrors) collapsing. It will have to be replaced but can also be glued (araldite epoxy or similar NOT SUPER GLUE) back together if the mirrors are still in good condition but requires a lot of patience. Best left to someone who has done this before as the colour wheel has to be removed and this is very delicate.

Posted on Dec 09, 2007

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  • 3 Answers

Do you have the projector inside a hush box? If so, it could be too far back in the box. Readjust and see if that removes your shadow.
You may have a haze on your lenses. Have you tried cleaning your color wheel and associated lenses? This procedure is for the skilled since you must disassemble your projector. Keep in mind that the color wheel is VERY, VERY fragile. Use a lens cleaning agent or 91% isopropyl alcohol and q-tips. The agent must not leave a haze. Have plenty of time and patience since this may take you about an hour just to clean the color wheel. Did I mention that the color wheel is VERY fragile…

This link may also be helpful. See section 5.10.

I hope this helps,

Posted on Nov 28, 2007

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Posted on Jan 02, 2017

SOURCE: shadow on right side of screen

Shadows on the left or right (if the projector is ceiling mounted) of the projected image area has nothing to do with the DMD it is the light tunnel tha is at fault. See other posts about this problem.

Posted on Dec 31, 2007

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