Question about InFocus IN24 Multimedia Projector

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I have a new bulb but am getting a dark shadow around the edges of the picture. The bulb seems fine, but the shadowing is covering about half the screen. Any ideas?

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  • saleever Jul 10, 2010

    What glue would be used. I have some time and maybe can find the patience.

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The light tunnel under the colorwheel has collasped. This is a major repair. I have known some to glue the tunnel back together, but it requires patience and skill and the right kind of glue....

Posted on Jul 10, 2010

Testimonial: "Quick response. Seems to be correct."

  • patrick reagan Jul 10, 2010

    the glue i've seen used time after time is LOCTITE 444. I also recomend the spray accelerator to go use for super fast drying.

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2 Answers

My unit seems to work fine, except there is a dark shadow covering the right third of the projected image. Is this a sign that the bulb is going out?


this is the light tunnel needing to be adjusted or replaced because is has collasped due to the heat given off by the lamp during the life of the projector.

Aug 27, 2010 | InFocus ScreenPlay 4805 Multimedia...

1 Answer

I have a very dark vertical shadow over half the screen. Rest is fine. Settings fine bulb hours only 609


the light tunnel is collapsing and needs to be replaced. you can get the part from an infocus service center or send it in to them for repair. either way, try av solutions in ny. they're really good. www.avsolutionsny.com

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This is probably due to a defective cartridge, Charge Roller or Transfer roller.

Check the cartridge for a band of toner still on the drum.

Check the Charge roller for oil or smudges, this roller should be a lighter color and should be relatively free of toner or marks.

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A relatively smooth straight line is generally the cartridge.

A rather wavey or broken line is most likely the rollers.

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The drak Shadow mark I see on my Screen looks like the black soot like marks you see at the end of a flourescent tube. I think it is the back light.

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Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images. 

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

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1 Answer

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Seems a lightning strike took out my bulb
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after replacing the bulb perhaps 1 hour later a shadow began to appear at the top of the screen and progressed slowly down until only the edges are visible.
please can you help?

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