Question about Sony Grand WEGA KF50WE610 50" Rear Projection HDTV-Ready Television

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Sony 50we610 optical block

I have a brand new optical block for a 50we610. i decided to buy a new tv rather than repair the sony. anyone interested in buying it, please e-mail me at

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Hi there how much you want for the optical block thanks

Posted on May 16, 2008

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Blue random cloudy patches have appeared on the screen of my KF-50WE610 Grand VegaLCD Projection TV. They are most noticeable in dark scenes but are now starting to be more prominant even in

You have a Bad Optical Unit Block. Go to Facebook and type in I Have A Defective Sony TV. Click Like on that Page SONY will offer you a Replacement TV!

Nov 06, 2011 | Sony Grand WEGA KF50WE610 50" Rear...

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Blue dots in screen . does that mean the lamp is going ?


I dont know of a good way to tell people bad news. The problem with the blue dots is expensive. A part called the optical block is failing. In general, the optical block takes the red green and blue pictures from the little lcd screens and puts everything togther perfectly. This requires several mirrors, filters, lcds, and parts that I dont even know the names of.

Buying a brand new optical block is a 1000 to 3000 dollar thing. To have the block rebuilt is about 350 dollars.

Sony has been trying to make the customers who purchased these tv's happy by providing extended warrentys, or giving them a special deal on a similar sized new LCD tv.

I would try to complain to sony and see what you can get accomplished. If you do opt to repair the optical block the odds are that it will happen again in a few years. Ebay and the chicago craigs list are where I have seen the guys who are capable of rebuilding those blocks.

I am sorry for the bad news.

Nov 25, 2010 | Sony Grand WEGA KDF-55XS955 55" Rear...

1 Answer

Dim and reddish picture SONY lcd kf-50we610

Light Engine/optical block
Encompass Parts Distrubtion 1-800-638-3328

Apr 14, 2010 | Sony Grand WEGA KF50WE610 50" Rear...

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Is the sony tv kf-50we610 is a slim panel from the back?

Your TV is a LCD projection TV. It does not have a panel, it uses a optical block in order to project the image onto a mirror and to the screen of the TV.

Nov 12, 2009 | Sony Grand WEGA KF50WE610 50" Rear...

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Blue in lower left corner and blue dots all over screen , Started with one dot and has been steadily progressing to more and more dots.

This is a common failure in Sony Projection LCDs that is known as an optical block problem. The optical block repair is very costly (about $1000-1500 depending on the shop) which is about the cost of a brand new comparable TV as current prices. This issue usually occurs in the TV about 1-4 years after purchase of the TV depending on usage.

Sony has been slowly extending the warranties on certain models but the model you have listed above was not one of the ones that had the warranty extended. I would first call Sony to see if they will at least pay for part of the repair. If not and you still would like to get the TV repaired, you could replace it yourself and save a couple hundred bucks in labor but it is going to be very time consuming because you need to take the whole TV apart to get to the optical block.

If you decide to replace it yourself, the link below has detailed pictures and a guide for optical block replacement along with a overview of the issue you are having with the TV.

Oct 16, 2009 | Sony Grand WEGA KF60XBR800 60" Rear...

2 Answers


Hey joseph, actually replacing the optical Block is not necessary at all, all you need to do is get into the "Service Mode" of the Tv and change a few setting around, did it a few weeks ago and now my TV looks perfect, no reason to waster $1200 as sony is trying to get over on all us consumers.

Oct 29, 2008 | Sony Grand WEGA KF60XBR800 60" Rear...

1 Answer

Green picture

i have a brand new optical block for a 50we610. if you would like to purchase it please e-mail me at

Mar 15, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

2 Answers

Sony grand vega rear projection

Sorry to say, that is an indication of a bad light engine. Probably will cost about 1000 bucks or so to repair. Good Luck

Feb 11, 2008 | Sony Grand WEGA KF50WE610 50" Rear...

3 Answers

Cleaning Internals

yes you have dust in your optical block may have to be replaced

May 25, 2007 | Sony Grand WEGA KDF-42WE655 42" Rear...

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