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When trying turn the TV on, the green light comes on, then it goes straight to standby and the red light flashes three times before switching itself off completely

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  • marym298 Sep 16, 2010

    We bypassed the cut off switch and now the TV is staying on but its got a red band across the top, the band measures approx 2.5cm.
    Any ideas?

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3 flashes signify that the power source is in protected mode because there's a big short inside it - so big it actually dies right after signalling it.
The tv must be opened and the power source tested.If the defect is too extensive the entire source will have to be replaced. I think it's time to take the tv to a repair shop, unless you have a good electronics experience there's nothing left you can do to it.

Posted on Sep 16, 2010

  • Azrael SRL Sep 16, 2010

    The band can be caused by a faulty panel driver board (a T-con board in a LCD tv or a Y-sus board on a plasma) or a faulty panel. If the tv is a plasma then the failure of the screen would easily trigger the protection in the power source. The only way to reliably test this is to replace the board with a good one.

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