Question about Toshiba 56H80 56" Rear Projection Television

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Power light flashing/ no picture

Turned off tv last night 10:30 pm +/-. tried to turn on at 5:30 this am with remote nothing happened, tried power button nothing happened. I then noticed power light was flashing and tried to turn tv off with power button but light kept flashing so I then unplugged tv. When I plugged tv back in it came on but picture was very unstable, like it was tring to change size I unplugged it again but let it sit for a few minutes. When I plugged it back in it worked fine for about 30 minutes then went off and power light started flashing again. I then unplugged for about an hour and tried it again, it came on and had sound but no picture for a few minutes then went off and light started flashing again. HELP PLEASE!

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  • Jim Albritton Aug 01, 2007

    That helped once but now it doesn't
    sound tries to come on but is intermitant
    no piture

  • Anonymous Mar 14, 2014

    TV will not always switch on. Light flashes as if it is trying to switch on but does not. If you switch of and unplug it sometimes will switch on after ten mins.

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I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.

Posted on Jul 19, 2007

  • Graham Haylock
    Graham Haylock May 30, 2018

    Have you tried resetting the TV with the TV Volume and Channel +/- buttons.

  • Graham Haylock
    Graham Haylock May 30, 2018

    Just noticed the date so ignore this comment as It's very unlikely you have the TV still.

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This may denote a proble in either your switching powers supply or your Horizontal section derived high voltage power supply. These are both very dangerous sections in your television. My next question is important; do you have a background in electronics? If not I would not advise you working on this problem yourself and that you take the TV to a repair shop for servicing. If you do have some background in electronics, I would like for you to make the following obeservations: What was the TV doing (it actions)prior to it going out? Did you hear any sounds before it went out like buzzing or crackling? What do you hear when you try to turn it on now, clicking? These questions are just to develop some background into what might be happening to your set. Thank you, Shuttle83

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