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Posted on Feb 16, 2008

YELLOW SPOT ON SCREEN

WHEN IMAGE IS PROJECTED ONTO THE SCREEN THERE IS A YELLOW SPOT TOWARDS THE MIDDLE OF THE IMAGE. I WIPED THE FRONT LENS BUT IT DID NOT GO AWAY. COULD IT BE BURNED ON THE INSIDE BULB OR SOMETHING?

  • 2 more comments 
  • Mikadododo Mar 16, 2008

    I also have a large yellow area in the centre of my projected image. I would appreciate any advise abouit this problem

  • Anonymous Nov 28, 2008

    I also have the yellow spot. The image/spot has a clearly defined and sharp margin, and seems to be some sort of geometric shape (ie - not a round dot). I removed the bult and examined it and it appears to be perfect - no burn in or marks of yellow detected on the lens. I'm suspecting the prism or LCD next but don't know how to examine these...

  • dshadank Mar 27, 2009

    i have yellow straight lines on the left corner of the screen!!

  • ggalea Apr 07, 2009

    I'm an electronics eng. techn by training. I have the same problem. This is not DUST, or a SMUDGE. It is a pixel problem as the problem "speck" is geometric and is exactly in the place of the pixel realestate. It is yellow too. I imagine that this is a defect with the individual transmission via the pixel transister driver. I have taken mine apart and determined that this is in the core of the image driver. It would appear a design flaw and, apparently, common with this model of Sony projector. The only way to fix this with out spending $1,500 (yes, no sh#@!) is to go after Sony as a collective and make big big big NOISE!

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  • Posted on Jul 26, 2008
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There may be a dust fleck on one of the LCD screens inside your projector. I had a similar problem and managed to clean it. But it requires you to dissassemble the entire projector !!!. If you are not technical, don't do this yourself. !!!

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no you cannot remove, you have to change the screen inside the monitor. the spot cause burn on the screen picture.
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The entire image quality is determined by the quality of the optical engine - if something goes wrong with it it's clearly visible on the screen. In your case the heat of the bulb has deformed the first lens, and that has caused optical aberration - color shifting.
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[email protected]..
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