Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Blue haze/blue dots on hd tv

Why does my Sony hd tv now have a blue haze along the bottom and now little blue dots in parts of the picture

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  • tgzeni Oct 23, 2008

    I have same problem. What is "optimal block"?

  • calvito Nov 03, 2008

    It started with a blue stain in the lower corner of the screen. Then, blue dots started appearing up the center of the picture. They seem to be multiplying.. Also, the entire picture has a blue tint. Anybody has any ideas??

  • papfitzner9 Nov 04, 2008

    my parents are having the same blue haze/blue dots problem.They  bought their tv at sears 4 years ago. service is coming out tomorrow to check it out.  I noticed in solutions the fix may be an optical board, passed that on to my dad who plans on talking to sears before they send a repairman out.
    will keep you posted on the results. thanks for the insight. 

  • Anonymous Nov 07, 2008

    I have the same problem and I looked at Sony's web site. This is a common problem on the grand Wega TV's from 2004. They are offering to cover costs of repair on TV's out of warranty for his problem or offering replacement TV's for greatly reduced prices. Call 1-866-850-8681



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You likely have a bad optical block. Sony was supplying the optical block as a warranty repair until June of this year, but that warranty has expired.

Posted on Oct 20, 2008

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I went to this website:
and found my tv was covered under this program. SONY will do one of two things... fix your tv by installing a new light engine/optimal block free of charge, or sell you a new tv a reduced price: KDL-42V4100 for $300 + tax; or KDL-46V4100 for $378 + tax; or KDL-46W4100 for $523 + tax. I bought a new tv (new technology - no light engine/optimal block) as why be potentially faced with same problem a few years from now. SONY gave me absolutely no hassle whatsoever.

Posted on Nov 04, 2008

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Just found this on the sony website. here is the link. sony says they will cover the costs for the optical block including parts and labor through dec 31 2008.

Posted on Nov 04, 2008

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That could only be the optical block, Sony p/n# A1084662a and heaven help you if it needs to be replaced. It is the single most expensive part of the DLP based projection Tv's costing approximately $900.00 dollars plus core and shipping..
You'll need to take this one to a quality repair center to have it estimated. It may be that they can repair it also - but whatever the case these type of repairs are not cheap.
Please don't kill the messenger...
Good Luck!

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Green dot in middile of my screen

The green dot in the center sounds like a burn mark on one or more of the picture tubes inside the set, and the curved lines are telling me that you have a problem in the convergence circuits. The blue haze around everything white tells me you either have a lot of dust build up on the lens over the CRTs, or your picture tube(s) are very weak. If this set is over about 12 years old, I would replace it. I doubt if you will be able to get the green dot out of the picture without changing the tubes which would be VERY expensive.

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