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My Sony Bravia (model: kdl-40ve5) loses brightness and then proceeds to go back and forth between a clear picture and a picture without brightness. Any solutions?

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  • buk25 May 25, 2011


    The tv is roughly 2 years old and the problem started abouta month ago. Unfortunately the productisn't under warranty protection any longer. The loss of brightness is for all inputs; one minute the picture is brightwith vivid colors and the next the bright colors fade into dull gray colors.

  • buk25 May 26, 2011

    I'm pretty handy. I'm willing to take the back cover off and attempt to correct.

  • buk25 May 27, 2011

    Thank you. I'll try to look at it over the weekend and let you know how it goes.

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Hi,
How old is this tv and how long it got this problem?
Is it still under warranty?
Does it give same problem/ picture in all inputs?
These info will help me to diagnose possible cause of problem.
Thanks.

Posted on May 24, 2011

  • 1 more comment 
  • Shahid Electronics
    Shahid Electronics May 25, 2011

    There are two possible problem for that symptom, either backlight is not working properly (becomes high and low causing vivid-dull picture) OR lcd panel (screen) itself is defective.
    Are you handy with electronics stuff repair and can observe backlight function at rear of tv by taking off tv back cover?

  • Shahid Electronics
    Shahid Electronics May 26, 2011

    Thats good, if backlight inverter board found bad, you can buy replacement from shopjimmy.com or search it over internet for more good price.

  • Shahid Electronics
    Shahid Electronics May 27, 2011

    Wish you good luck
    Thanks.

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