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

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Sony Wega purple spots KF50WE610

My sony projection lcd purchaced in spring of 2004 has purple spots on light backgrounds on all formats DVD, TV, VCR ect..I have attatched a picture that I found with someone who is having the same problem.

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  • Anonymous Dec 14, 2007

    I have this same problem. I asked a saleman about this; he said to spray some canned air in and around the bulb and in and round where the bulb is mounted. I have removed the bulb and dusted off the bulb. I didn't use any canned air. This helped with some of the spots but not all of them. What else can I do?

  • Sensfan Dec 15, 2007

    Same here! Purple spots everywhere and I thought maybe the screen needs cleaning. I'm interested in trying the "cleaning of the bulb method" if I can locate it. Any other tips?

  • Anonymous Dec 16, 2007

    I am having the same problem with my WEGA KF42WE610 , red or purple spots on the screen.

  • kidding Dec 17, 2007

    How much is an optical assy and how can a person order them?

  • Anonymous Dec 23, 2007

    I have purple ghost shadows, and i have tried the video adjustments auto, and1,2,3, to no avail



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How does a person go about getting an optical assy and what would the cost be?

Posted on Dec 17, 2007

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You will need an optical assy.

Posted on Oct 13, 2007


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I have a 55" Sony Wega HDTV rear projection television and it has developed purple pin size spots on the screen. It started with just one spot and quickly grew to hundreds of spots over a couple weeks....

You should do a regular cleaning maintenance to the air filter and exchange it regularly. Small dust particules may get into the internal projection module and those spots became visible.

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Is very likely that the lamp will need to be replace soon.
Is some cases those spots might be generated in the inner part of the lamp.

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Thats caused by a bad optical block. The cost of that repair will almost always be greater than replacing the TV.Thats a very common issue with alot of Sony DLP models which suffered that optical block issue with the blobs of color usually blue or green

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Having a big yellow spot background in the middle of the picture.

Hi , it seems you are experimenting a light engine problem.Here's how your tv works: Basically there's 3 LCD chips that create the colors and image by blending together.When these chips start to melt you will get those blue spots, pixilation even vertical lines.You will need to replace the light engine. Have a blessed one!

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Blue blothes on LCD screen

Blue blotches spreading over the screen are failure of the optical block

contact Sony to see if you are eligable for a free repair.

Sony will cover the cost of the optical block repair (parts and labor) at no charge through December 31, 2008 for 2004 Model Year Grand WEGA™ Televisions with the blue spot problem.

Models: KDF-42WE655, KDF-50WE655, KDF-55WF655, KDF-60WF655, KDF-55XS955, KDF-60XS955, KF-42WE620, and KF-50WE620
Read more: Help from Sony for LCD rear projection with blue spots - Home Theater Forum - Home Theater Systems -

Don't bedeterred by the dating of this announcement, it is a manufacturing fault and they have been pr5etty good to a lot of people with the same problem.

Please rate my help++++Thanks for using FIXYA

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1 Answer

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The light engine is bad. Contact Sony . They may help you with this.

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