Question about Toshiba 50H72 50" Rear Projection Television

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I'm having the same flickering issue with my Toshiba 50H72,

I'm having the same issue with my Toshiba 50H72, constantly flickering, like a power problem, however, it almost completely clears up when I switch the input to a HD input.
Any idea what I can do to fix it?
Is there some part that I could replace to fix this?
I don't want to buy a new set yet, if it's a minor repair.
Thanks, Larry

Posted by on

  • Philip Frye
    Philip Frye May 11, 2010

    Larry! Has this done this flickering in the past on a non-HD source or channel? Blessings, A/V Media Guy

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

ctf1800
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SOURCE: Toshiba 43A61 - No Picture, no sound

If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:

  • Unplug the set and wait a few seconds
  • Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system. If it finds that there truly is a problem, then the set is shut down and the LED will again flash. In this case, you need to call a service tech. Most of the time, however, the unplug/replug routine is enough to get the set up and running.

Posted on Dec 11, 2007

ctf1800
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SOURCE: Toshiba 50H72 50 in. Rear

possibly the STK392-110 ic's? it seems like it is the vertical convergence.
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

Posted on Dec 14, 2007

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SOURCE: toshiba 62hm195 repair issues

This may sound obvious but did you check to make sure that your lamp access door is properly secured? The set will not power up if the door does not contact the micro switch. Also double check all of your internal wire connections. You may have inadvertently forgot to reconnect a cable or not fully seated one. I know I was guilty of both errors at one time or another while I was working on mine.

Posted on Aug 21, 2008

SOURCE: Wavy Lines which clear up after being on for 10 minutes - Toshiba 50H82

It will cost about $300 to fix. The Hyperboard has to be replaced. I had it repaired over 2 years ago and it works great.

Posted on Sep 25, 2008

  • 1 Answer

SOURCE: violent shaking picture initially but slowly tapers off but still shakes

i have a 50h82 with the same problem as above,please help,billy

Posted on Oct 07, 2008

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the Y-SUS BOARD is for picture in tv.if the picture is not coming or not proper the Y-SUS board needs replacing .but if the picture is blurry or with linings reparing helps.but in your case the tv does not turns on with y-sus board connected only error led comes on.this means y-sus board needs replacement.
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Most Hyper modules are no longer available from Toshiba.
Hyper modules go bad due to problems in the power supply.
Which also needs attention.
We have developed a method of repairing the modules.
We are a Toshiba dealer in Milwaukee.
Note: What you read on the Internet is only a guess. You guess at you own expense and risk.
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Elmbrooke@gmail.com

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Hi,
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Rick Macy
BC Electronics
Macy41@aol.com

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