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Epson 822+ Projector still dim after replacing bulb

4+ year old Projectors hung from ceiling in classrooms are so dim the image cannot be seen. changing bulb and doing the manufacturer's basic dust cleaning did not resolve the problem.

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  • 25 Answers

I'm not familiar with your specific model, but are the units LCD or DLP? What I've seen in LCD projectors used in schools, museums, etc. that are left-on for several hours per-day, is that the UV filters in the optical blocks will fail. They usually change to an amber-brown color and block most of the light. It's the equivalent to putting sunglasses on. Do the units also exhibit a greenish-yellow tint instead of proper color?

Posted on May 01, 2013

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Posted on Jan 02, 2017

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SOURCE: Projection is so dim

Hi,

Click HERE for the user manual.
I hope this helps.

Goodluck,
Please don't forghet to rate the solution

Posted on Mar 22, 2008

Marrie
  • 563 Answers

SOURCE: Optoma EP732H Projector - Image is Whitewashed

Hi tourblack

I wouldn't think that this is a lamp issue , as the lamp will make the picture fade away in brightness and wouldn't look white washed.

Check if the brightness is set to 50% and the contrast on 50% as well.

This could be a colourwheel that is in need of replacement.

Posted on May 13, 2008

  • 14 Answers

SOURCE: proector image is dim

I have changed the bulb on my LG projector recently. I found the rotating colour wheel to be full of dust. Upon opening the cavity where the light is redirected and reflected onto the imager, I saw all mirrors also had a layer of dust. I don't think it was so dirty that it affected the brightness of the image, but I cleaned it anyway using an earbud. I cleaned both sides of the color wheel as well. You need to be careful in working with the optics of the projector!

Posted on Sep 14, 2008

  • 1 Answer

SOURCE: White vertical line in the center of projected image

I have a Dell 2400MP projector that had the same problem of vertical white lines appearing over the screen.

This may seem like a simple solution, and I don't know if this will work for you, but the way I solved the problem was simply to press the bottom side of the projector, until the white lines disappear . Until now, the problem has yet to resurface.

Here's some simple steps:
1. Turn on projector
2. Connect projector to computer
3. Focus projector
4. If white vertical line appears, firmly press underside body of projector
5. See if vertical white line disappears
6. If not, try slowly pressing other parts of the body of the projector and see if white lines disappear.
7. If solution doesn't work, you may need to send it to the service center.

Hope this solution works for you.

Best Regards,
Ghazali Ridzwan
http://www.ghazaliridzwan.com

Posted on Oct 29, 2008

  • 3 Answers

SOURCE: Projector turns on but no light or image from lens.

The bulbs do not always look broken when dead. You say it is used often. The life of a bulb is around 1400 hours I believe. This normally equates to a year or two depending on your usage levels. Did you notice your image getting dimmer in the months before it stopped working? This would be a good sign it was in need of replacement. Are the lights flashing very rapidly or blinking slowly? If they are flashing very rapidly this indicated the bulb will not fire and needs replacing.

Posted on Apr 30, 2009

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