Question about Sony Grand WEGA KDF-42WE655 42" Rear Projection HDTV

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Couloured spots on screen

I have couloured spots on my screen no damage to screen just spot on inside of screen

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If your model is a KDF-42WE655 Then it is LCD based rear projection TV .It cannot be affected by magnetic fields . Your colored spots are likely dust that has accumulated on the 3 lcd panels inside your TV (makes faint colored spots about the size of a half dollar ) OR failing polarization filter/lcd panel (very common in the blue panel(makes blue spots or yellow picture)).
The problem will be deep inside the very fragile optical block and I would reccomend contacting a local SONY servicer for diagnosis.

Posted on Oct 20, 2009

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Hi
sounds like you have colour impurity problems caused by a magnetic feild being near the Screen. Fist check for any new magnetic feilds nearby. If there have been no new changes, it may also be a faulty PTC device that automatically degausses the tube. When they fail, you will get problems with impurities by way of coloured spots on the screen.
Try disconnecting the set off at the wall for 30 mins, this will initiates the auto degauss process. If all is ok, the spots will be gone. If not, you will need to have someone handy with a soldering iron that is also familiar with TV repair to replace the PTC for you.

Please rate this solution. Happy to answer any other questions you may have. Cheers.
regards robotek

Posted on Jul 15, 2009

  • Dave D Dec 05, 2010

    Check out the class action lawsuits for defective Sony TV. Many models over the past 8 years with the same problem. Do some google search about your model and other similar Sony models with the blue spot and blue smudges on the left side of the screen and at the bottom. Sony is giving free TV's and/or greatly reduced prices for a new model. But hurry as many of the class action lawsuits have already expired.
    http://www.facebook.com/pages/I-Have-a-D...

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Posted on Jan 02, 2017

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