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

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What causes 900+ blue dots appear on my Sony rear projection tv?

900+ blue dots appear on my sony rear projection tv when I turn it on. I replaced the XLZ lamp and problem still exists. HELP!

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Dot problem in Sony DLP TV caused by bad light engine (optical block)
Its costly part and needs qualified TV tech to fix it.

Posted on Jul 25, 2009

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Ive had the problem. You dont need a qualified tech. I found a page http://sites.google.com/site/sonylcdrptvproblems/sonykdf-55wf655opticalblockreplacement#TOC-Optical-block-cleaning Ive used it and totally tore my tv apart and put it back together. Cleaned all the filters and fans and everything in the light path. Dots still exist. Yes needs new optical block due to bad light engine. You can do this on your own and save a ton of money.

Posted on Apr 18, 2012

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1 Answer

Sony wega lcd tv blue dots


thats caused by the optical block which is very expensive to replace. Sony has had alot of issues with the blue dots on the screen its not worth repairing due to the high cost of the optical block

Feb 28, 2013 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

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...

1 Answer

Near the bottom edge of the screen on my Wega KF-50WE 610 has appeared a ''blue haze'' that appears after the TV has warmed up. It started a few days ago as ''fuzzy blue dots'' about the size of silver...


This was caused by a defect in the optical block of the TV. It will only get worse with time and the only way to fix it is to replace the whole optical block which is very expensive (over $1000 usually) and time consuming (you need to take the whole TV apart). However, since it was a defect, there was a class action lawsuit that caused Sony to extended the warranties for certain models on the optical block for parts and labor. Call Sony to see if your model was one of the ones they extended the warranty for.

Oct 04, 2009 | Sony Grand WEGA KF50WE610 50" Rear...

1 Answer

Large blue covering entire bottom right corner and blue dots


optical block failure call sony, they are a known fault on all rear pro sets from 2003-2007, they may replace for free, have extended warranty on this part.... there are lawsuits pending against sony over this problem

Sep 13, 2009 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Yellow dot about the size of a nickel that appears on the center of the screen. Any help as to what causes this or how to go about correcting?


You probaly have a phosphor burn in the center of the blue picture tube. Solution is to replace the tube or have it rebuilt.

Apr 30, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Blue dots in KDF-60WF655


Yes, your optical block ( light engine) is bad. Heat generated by the lamp circuit with its poorly designed ventilation system, cause the LCD panels inside the light engine to fail. They are the size of a postage stamp. There are 3 LCDs, for red, blue, and green. The heat causes them to warp and de-laminate.

Sony has systematically downed played the scope of this issue. It appears however that virtually every LCD projector they make can develop damage in the light engine which is extremely expensive to fix.

I suggest contacting Sony and your state's attorney general's office of consumer complaints asking for action on this.

michtech

Feb 01, 2009 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Blue line problem with Sony Grand WEGA KDF-55WF655 Rear Projection TV.


We had the free repair from SONY for the blue dots and splotches. It works great now but you need to hurry and contact them as the offer expires I believe in December.

Sep 25, 2008 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Bad picture


Sony wega blue dot or star pattern on screen
http://esupport.sony.com/perl/news-item.pl?news_id=206&mdl=KDF42WE655
Models: KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620
Sony LCD Rear Projection TV - Optical Block Problems
http://splinke.googlepages.com/sonyrearprojectionlcdtv-opticalblock

Jan 19, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

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