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2009 Toshiba 55 inch lcd t.v. turns off by itself after 1 hour and 50 minutes I have to wait a minute or two before it will alow me to turn it back on. then it consistantly repeats this cycle over again. In addition, randomly but often it will turn off after only 20 minutes, If it is during this 20 minute cycle then it turn itself back on aoutomaticly! I have had the service guy out several times he has replaced the Main PCB, Inverter and Power PCB still not fixed! Then he took the t.v.back to his shop. and said he had no problems. He thinks it has to be something in my house interfearing... How would I even test for this is there any companies that do this? I have unpluged my Cablebox DVR and the proble still existed. I have run a movie through the Bluray player and the problem still exists....I do have a Onkio home theater that I got at the same time I got the t.v. it has always been hooked up to run t.v. Please help!! Thanks you!

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  • lil_bit42 Aug 28, 2010

    2009 Toshiba REGZA 55ZV650U

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  • Master
  • 10,594 Answers

Hi,
Let me know model number written on rear of tv, this will enable me to check its schematics if I have it.
Thanks.

Posted on Aug 27, 2010

  • Shahid Electronics
    Shahid Electronics Aug 28, 2010

    It sounds firmware problem and only Toshiba service center can update it.

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