Question about Toshiba 57H81 57" Rear Projection Television

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Toshiba TV repair

I have a Toshiba 57" DLP Projection TV Model # 57H82 that has a fuzzy picture. It recently developed a blurry picture.The picture corrects after I shut it off for a couple of minutes then turn it back on but then resumes to the fuzzy/blurry state after half an hour of running. Also the audio went out as well. It seems to me that something shorted in the main pcb board but I'm not sure. Anyone knows how to fix this.

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  • sdppavlicek Jul 04, 2008

    the screen on my toshiba tv is fuzzy, and it gliches.

  • sdppavlicek Jul 04, 2008

    The screen from my toshiba television stays fuzzy the whole time, along with the gliches it has in it.

  • rendell5242 Jul 14, 2008

    I have the same TV with the same problem. Hint, I power-up the tv set and it is fuzzy; in an effort to expedite my viewing I put on the PnP which plays fine until I get the same reception on the main channel.



    57H81 rear projection TV

  • shurman francis
    shurman francis Oct 02, 2008

    i have the same problem with a toshiba 42" prjection tv. i have chaged the 2 stk ic's but there is no change. the picture is all missed up..

    what can be the problem?

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I have a Toshiba HD LCD tV, model 37AV50U. the screen is black. I still get audio and can change the channels but the screen stays black. It doesn't even show the menu box. Is this something I can fix myself?

Posted on Apr 11, 2010

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I have a toshiba 60inch projection tv. when i turn it on after about ten seconds or so the screen turns white and it shuts off the red power button on the tv starts flashing . i unplug the tv and plug it back in several times or so eventually it will stay on and have a perfect picture

Posted on May 22, 2008

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It has a black rectangle in the top of the screen, it looks almost like a magnet.

Posted on Sep 23, 2010

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I have tuned my toshiba 32 inch tv sevel times time now and when i go on to guild its still saying noo event name?

Posted on Dec 28, 2012

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I have Toshiba 42 inch DLP and the pic was get blurry colors bleeding. We would turn it on and it would be fine for about half an hour. Then the same thing picture getting slowly worse.
At first we tried opening the sides and sucking all the dust out. That helped for a bit.
I read it might be the color wheel so my husband took the back of the TV apart and found the colorwheel. It was filthy we used a lense cleaner and cleaned it off. Put it all back together works like new!
That saved us so much time, trouble, and money.
Chances are the color wheel is dirty if you are experiencing anything like we were!
Good luck!
Beth

Posted on Feb 06, 2010

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You say it's a DLP yet the model number shows as a standard projection, anyway what you seem to have is a Hyper board problem, many shops can repair this Fragile board but it's not for the weekend tv tech to try to do

Posted on Feb 13, 2008

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There are two chipset calls STK.you have to change them.something like this with defferent code
http://chinaimportexport.wikispaces.com/file/view/Semi-Conductor-STK4121II-STK392-150-.jpg

Toshiba TV repair - images.jpeg
moz-screenshot-1.jpg

Posted on Mar 22, 2009

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Posted on Jan 02, 2017

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1 Answer

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If the TV looks zig zag or scrambled and its moving aroudn the screen the hypermodule has failed.
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This is a model first sold 2002.

They have a history of the Hyper board failing. Usually noise or lines in the picture and the warmup time gradually gets longer and longer.

This board processes all signal from all inputs inside the set and is no longer available from Toshiba.

The only way to get one is from a national company called PTS Electronics who rebuilds or repairs them--cost for rebuilt board is about 220 plus shipping and part number for this model is:
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I have a service bulletin with photos of the board on my computer.

It is a financial decision, not a job for the average do it yourself person to attempt.


Let me know if you have questions or need help.

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