Question about Sony KP-61V90 61" Rear Projection Television

1 Answer

Bad color and dim picture after crackling noise

I have an older KP-61V90 Sony rear projection TV. I heard an electrical crackling noise then there was a green background, then squiggly shaking lines running horizontally. I tried to focus it but it just came back to a very green and purple colored picture. I tried to unplug it too and still the same green and purple. It is also kind of faded. I can see shaking light in the background of the picture also. I is nauseating. I do want a new TV but didn't plan on it now. What could be wrong and is it costly to fix?

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  • 2 more comments 
  • ohjoygee May 14, 2009

    I have done some troubleshooting before so what do I have to do here?

  • ohjoygee May 16, 2009

    Sorry it took me so long to do what you suggested. I cannot get a black screen. The Tv keeps shutting down when I try to adjust the color. There are also white line going horizontally accros the screen.

  • ohjoygee May 16, 2009

    I did read that wrong. I have, however figured it out with your help. Thanks for all of your advice. And walking me through this. It is now working much better. I will accept your fix. Thank you.

  • ohjoygee May 16, 2009

    The tech was helpful. It seems to be working good now. Thank you. I guess I won't need a new TV for now. :)

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Hi,
Sony KP-61V90 is 2001 model TV and I can assist you to fix it. I need to see screen results on TV so please take snap of TV screen that shows problem and email it to me welcomejee@yahoo.com

It is important to see what is result on TV screen to understand what is wrong inside.
Thanks.

Posted on May 14, 2009

  • 2 more comments 
  • Shahid Electronics
    Shahid Electronics May 14, 2009

    Thanks for sending me pictures, get back to you shortly.



  • Shahid Electronics
    Shahid Electronics May 14, 2009

    OK, screen result shows over green and low red and blue gun results.
    In my opinion, TV requires G2 (Screen) volt adjustment of all 3 guns and if you are familiar with TV repair, let me know to guide you.



  • Shahid Electronics
    Shahid Electronics May 14, 2009

    Please take off front speaker grill and find Focus Block that has 6 control knobs, check for 3 Screen Volt knobs that has mark R G B now turn G knob CCW slightly to reduce screen volt to get better picture result. If its still not better, turn it to original position and now turn R and B knob CW to increase screen volts, I would suggest to decrease Color Control up to Zero level so to get/ maintain Black & White picture.
    Upon good B/W picture, increase color level.
    Thanks.

  • Shahid Electronics
    Shahid Electronics May 16, 2009

    Sorry it took me so long to do what you suggested. I cannot get a black
    screen. The Tv keeps shutting down when I try to adjust the color.
    There are also white line going horizontally accros the screen.
    =====================================================================

    I never said to get black screen, in fact if you rotate control screen knob TV will sense it and goes to standby.
    I was saying to maintain good White Balance (black and white) level on screen by help / adjust these 3 screen control knobs.
    Thanks.


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