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Sonix26 " lcd tv

When i turn telly on picture fine but after 10mins warm up i get horizontal banding across the picture can this be fixed in any way????? please help

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  • munchies Jan 06, 2008

    2 years i think please reply

  • Mr HV Jan 05, 2009

    My problem is similar. about 5 Min after the TV (Toshiba 42HP83) is turned on, a flashing horizontal black bar appears across the middle of the screen. The picture in the remaining portions (outside the bar) of the TV is still fine though. Please help!. Thanks.



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How old is this TV?

Posted on Jan 06, 2008

  • Greg Collins Jan 06, 2008

    Without seeing a picture of it, from your description I'd say these
    were what is known as 'hum bars' generally caused by failing capacitors
    in the power supply allowing power line noise into the circuitry.
    It can be a lengthy process figuring out which one of many it is.
    Sounds like it is temperature related however. So get a can of
    freeze spray and methodically freeze portions of the circuitry to
    isolate what it is. It is no doubt an inexpensive part, but
    finding which one is letting the noise through is the problem.



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