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Multimedia projector dead pixels

I have already returned my projector twice for service (once for dead pixels and once for click-click-no-go) They sent me a replacement unit and recently it began with the daily increasing dead pixels again. I have one last shot at sending it in before my warranty expires, but would like to know if anyone knows a do-it-yourself solution for when it happens again.

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Posted on Jan 02, 2017

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SOURCE: unit will not power on

Company said it was defective. Sent back for exchange.

Posted on May 31, 2008

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Is the whole screen bluish in colour or just areas. If you look closely at the screen are the bluish areas composed of rectangular pixel shapes. If it is then the blue lcd panel may have dead pixels, otherwise it's a glass polarizer plate that may be degraded due to aging.

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When we project to the screen, we are getting spots on the screen - mostly noticeable in dark. We blew for dust and still no change


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First time using infocus 1x projector with this laptop - installed drivers but there is no start up screen on the projector and will not display laptop image.


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Optoma EP716 Projector


Hi,

Make sure that the resolution shown by the projector matches with that of the computer resolution. Many projectors does it automatically.
But if there exists a problem in resolution matching, there is a chance of getting partial picture. So better check that the resolution shown by the projector matches with that of the computer.

Also, the pixel may be degraded due to,
  • Their susceptibility to heat; the organic compounds used in LCD filters - in particular the blue - can be broken down by excess heat, resulting in a degradation of image quality.

  • "Dead Pixels"; pixels can become permanently on or permanently off, and while this is barely noticeable with one dead pixel, the presence of multiple dead pixels can be a irritation.
The only way to fix the problem is to replace the 3 LCD panels which, if you could get the part would cost you more than a new one.
LCDs are really difficult to make so lots of them do actually get passed with dead pixels on them.

But i suggest you to get some advice from the service center too.....
Hope my info solves your problem.
Thanx for using fixya.

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