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Blinking red power light - set will not turn on

HI, this morning I turned on the tv to watch the weather and in a few minutes, noticed that the screen had gone black. I still had audio at that point but turned everything off to restart - I have Directv so restarted that receiver as well.
Once I did this, the tv tried to turn on (you could hear it click) but the screen stayed dark and the power button began to flash red. I cannot turn off the power button by pushing on it. It continues to flash red and the screen stays black with no audio now.

Have tried replugging it in and out and even changed power strips in case that had gone bad but other things plugged into it seem to work.

What has happened? Thanks.

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  • Mc Robb Jan 23, 2008

    OK - I put the make and model number in the place where you asked for it but here it is. It is a Toshiba 57HC85 - rear projection monitor. We have had it just over 2 yrs now with no problems.

    I called Toshiba and they had me unplug for a few minutes and then plug back. When I did that, I got a blue screen very briefly with pale blue lines across it but after about 3 seconds, the screen went black again. But I did have audio until the screen went black. Thanks for your help.

  • Mc Robb Jan 27, 2008

    Thanks for you comments. I am in a wheelchair so cannot do the actual work. My husband was reluctant to do anything ourselves so I have called the repair guy. Hope it doesn't cost me an arm and a leg!

  • Cary Farah
    Cary Farah May 11, 2010

    need make and model number



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I know it has been awhile since this was posted. In simple explination, one of the tubes has shorted. It is more than likely the blue tube if the screen is turning blue before it shuts off. I have the 46h84 Toshiba widescreen and it has recently done the same problem. To troubleshoot, remove the control board for the tube, make sure it does not touch anything, plug the TV in and see if it stays on for at least 5 minutes. If so, the tube is the ptoblem. If it shuts back off, reconnect the tube and try it with the other boards. if the problem exisit with the tv the same each time, it is a controller board that is no good. Isolating that is a bit more difficult and I have not had the experience troubleshooting those. Good luck

Posted on Dec 05, 2008

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Heres your fix

Posted on Jan 24, 2008

  • Cary Farah
    Cary Farah Jan 28, 2008

    please mark the post as fixya!


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Were the pale blue lines real thin in a slight diagonal from bottom to top of your screen? If so you either have a bad component in the blue drive, Blue CRT socket or your Blue CRT is shorted.Try removing the blue CRT socket and trying to power up your set for a moment without the blue socket attached to the tube. Be sure the CRT socket doesn't touch any components when you try this. Let me know if the set starts up without the blue.

Posted on Jan 23, 2008

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