Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV

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I have blue hazy streaks and tiny blue dots on my lcd tv

I have blue hazy streaks and tiny blue dots on my LCD projection sony projection tv. How do I get rid of them?

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Hey there it looks like you are having problems with your LCD chips it sounds like the blue one is starting to burn out and that is why you are getting this kind of side effects, to be honest with you I dont think they sale the LCD chips by them selfs what you need to buy (that is if you want to invest any money in this set) is the OPTICAL BLOCK not a light engine your tv set is a LCD projection and this tv set dont have light engines.

If you go to youtube and type in LCD projection you will see some great videos on how this projection works

Please rated this solution!!!!




Posted on Jul 15, 2010

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You need a light engine. I do not remember if your model is still under Sony's recall. You might want to call them.

Posted on Jul 08, 2010

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1 Answer

I have blue dots on the screen. I cleaned the glass on the projection bulb and the prizm but still have blue dots.


Your tv is an LCD projection one - in which the image is generated by 3 small LCD screens. The blue dots are pixels from the blue LCD that are dead - always fully open.The only fix is to replace the LCD panel and that is going to cost you around $300.

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Blue streaks might have been just your video connection and problem with signaling. But, blue dots is faulty light engine, aka "optical block". The engine in this could be a defective LCD array. Very expensive, a optical block is about $850. Hope it's still under warranty. You could get a rebuilt one, possibly. Need service adjustment too. Bad problem that Sony has with these kinds of sets.


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Sorry but you have a BAD light engine Sony is well know for this part to go bad quick, I think your tv is DLP?

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if you see blue pixel type groups of squares or dots you may have a burnt light engine and this is common in many LCD rear projection sets; a blue screen may mean the engine became burnt--LCD rear projection sets of this kind have an optical enginge--with red,green,blue prizims--sometimes they get burned by the lamp---a photo would tell me or most techs what the problem is---the cost of a replacement engine is very expensive--some models with this problem are covered by Sony even if the set is no longer in warrant

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The blue dots are cause by a defective optical light engine. This parts is quite expensive.
Read the info from this link for more info.

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Sounds like magnetic interference,Do you have a speaker close to that corner?If so you need to relocate it a little farther away.

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Hi Guys

The Blue dots or discolouration you are seeing is due too the Blue LCD screen having cracked from excessive heat. This normally happens when you have a power failure while the Television was on. This obviously because the Blue LCD sits next to the lamp - the main cause of heat. The correct part number on the 60" is A-1086-952-A. It is very, very ,expensive.

Sorry to have been the bearer of bad news. Good luck : )

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