Question about Toshiba TP55H60 55" Rear Projection Television

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Toshiba TP55H60 power down after start up

If I uplug the tv for a little while and plug it back in,it turns back on for a very short period of time,then it shuts off and the blinking red lights occur.It will not turn back on until I unplug it for awhile,and then try again only for it to shut off again in about 20 seconds.I have had the tv for 8 years and would rather try to fix it rather than let it go,it still has a great picture and sound.Any help would be appreciated,thank you.

Posted by brindle on

  • 5 more comments 
  • atyeung May 17, 2008

    I have the same problem with my eight year of TV. Each unplay allows it to stay on for about 5 minutes. It does not seem to be the sleep timer or the auto turnoff when TV signal is missing.

  • Anonymous Jul 29, 2008

    I have the same problem. I'm going to try and remove the convergence module as all "flashing red light" issues seem to point to it! I'll keep you posted

  • Anonymous Aug 07, 2008

    I've got the same problem. From what I've read it apprears the convergence IC's have gone bad. I have ordered new ones and will replace them. I'll keep you posted on my results.

  • winzells Aug 13, 2008

    I have the same problem. TV powered down and red power light started blinking.

  • Anonymous Aug 22, 2008

    I tried changing the IC's and did get much luck. Now I get an immediate flashing light....Perhaps the new IC's need to be calibrated or something?

  • Anonymous Sep 07, 2008

    I replace the IC's with some I purchased from e-bay and instead of clicking off after 2-3 seconds, it turns off immediately. Replacing the STK-392 IC's didn't work.... I'll see what else I can come up with next.

  • John King
    John King Feb 13, 2018

    did anyone figure out the real fix for this ? power board ? mine works after unplug and a smack, still turns off sometimes tho.

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5 Answers

pmciare

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Try the following
1-unplug tv
2-remove bottom cover on tv
3-tap the power supply frame a few times (where the power cord enters the tv)
I had the blinking red light on my tv. I tried other solutions like removing the red wire a few times etc. Tapping the power supply frame solve the problem.

Posted on Jun 18, 2008

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Anonymous

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I tried the solution posted by pmcaire (tapping the power supply frame) and it worked. The tv is working now and I was able to cancel a very expensive service call this morning. ($325)

Posted on Dec 14, 2009

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Anonymous

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This most likely is the IC Convergence chip STK392-150. I ordered some on E-bay and the solution did not work. I believe there was a resistor or capacitor that also needed to be replaced so when I plugged in the TV with the replace IC convergence chips, they just popped again. I had to send it to a Toshiba repair show which charged me 400 bucks to fix it. That was 9 months ago.... Guess what, same problem again. Blinking red light. Time for a flat screen.

Posted on Aug 21, 2009

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I had the same problem a few years ago and had a tech come out . It was a bad resistor easy fix. Hard part was having the tv not work when tech was here to trace the problem.

Posted on Aug 01, 2008

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Possible cold solder connections given the age of the unit.

Posted on Sep 11, 2007

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