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

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

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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.

Posted on Nov 06, 2010

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1 Answer

Blue dots on screen. what is it and can it be fixed? a new bulb was recently installed.


Yes,it is repairable.Blue dots on screen is sign of LCD failure at optical block assembly. There are three LCD on the optical assembly RED,GREEN and BLUE. Blue LCD failure causes blue dots on screen. Repair should be done by replacing blue LCD. Note! LCD replacement needs Extra care and precise tools such as oscilloscope and color pattern generator , for the color alignment after replacing LCD. But if you can afford, replacing the optical block is better,

Sep 26, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

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Green screen


inside the light engine there is a red a green and a blue glass color filter.The heat from the lamp causes the color to burn off the glass.You need new filters .One is red one is blue and one is green.The lcd itself doesnt make the color,it is a black and white device.The colr comes from light shining through colored glass

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Blue dots appearing on screen n bulb blew twice


IT NEEDS A LIGHT ENGINE. COST A LOT TO REPAIR.

Oct 06, 2009 | Televison & Video

1 Answer

Blue dots and streaks


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.


Oct 05, 2009 | Sony Grand WEGA KDF-60XS955 60" Rear...

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Is there any way that a rear projection screen can be cleaned? That is the inside of the screen not the outside.


Most definetly. There are three guns that have lenses that should be cleaned they are heavy glass and can be cleaned with lens cleaner or a mild glass cleaner. There is also a mirror that needs to be cleaned. If it is glass its easy to clean, however it maybe mylar in which case you have to be very careful cleaning it. Can make a major difference in picture quality.

Sep 27, 2009 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

Tiny Blue Dots all over scree. Now wont turn on.


is munes the same way, if it is try to clean
back mirror. if that don,t you need to call sony.
because it your eng is bad wicth is whear the pix come from.

Aug 25, 2009 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Blue dots on the lft. side of screen


Sorry I was mistaken. see this:

http://ciscdb.sel.sony.com/perl/news-item.pl?news_id=206&mdl=KDF50WE655

Looks like your model is covered till December 2008
Please be sure to rate this solution. Thanks!

Nov 13, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

4 Answers

Blue dots and blue color


my sony is 4yrs also it has blue dots on the left side from top to bottom and a blue blob on rt. bottom corner no longer under warr. please send repair solution.

Jan 12, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

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