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Posted on Feb 08, 2009
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Toshiba 50H72 projection tv-problem with horizontal tearing or s-ing sometimes will go away after warming up. Can I get some help with what may be the cause? Please?

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  • marycakes60 Feb 08, 2009

    Yes, but it could be one or any number of capacitors in the convergence circuit that might not smell or look blown or show any leakage.

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  • Posted on Feb 08, 2009
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Hi, bad news, you have a bad hyper module which is NLA from Toshiba, you need to have a local tech change out all the leaky caps inside the module, a very tedious job that requires an expert at unsoldering smd devices, video-tek

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Its a cause of high voltage on one of Cpacitors of the convergence board.

check any smell of blown capacitors.

and replace it!!

  • Jalal Sordo Feb 08, 2009

    well u can use the multimeter and switch it to Mesure ressistance.
    then start check the capacitors or even u can use the farad meter.

    for every capacitor it shud show the same referfence described on it!!

    hard work good luck.

    or u can take it to a tech. cuz u need a serious tech skills on this task.

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1answer

My toshiba 50h72 has wavy lines inthe picture and i cant fix it please help
Hi

wavy lines in the picture or maybe on your LCD

check here for any solutions: http://ccabong26.blogspot.com/
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Dec 01, 2011 • Toshiba 50H72 50" Rear Projection...
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Only the bottom half of the screen comes on
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Jan 05, 2011 • Toshiba 50H72 50" Rear Projection...
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Dec 18, 2009 • Toshiba 50H72 50" Rear Projection...
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I have a Toshiba 50H72. When I initally start the tv up the picture scrolls up. I have to wait for anywhere from half an hour to an hour for the picture to clear up and continually turn the tv on and of....
i am pretty sure u need to go to the menu and check your v chip or a button on the tv that starts with the letter v that will control the picture
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Apr 24, 2009 • Toshiba 50H72 50" Rear Projection...
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The red seems to be out of place on my toshiba 50h72 projection t
Replace both convergence ICs they are stk392-110 you will also need at least the six 1.8 ohm 1watt resistors. You can get replacement ICs and resistors at the following link and they provide free installation instructions so you can do the repair yourself.
heres the link.
http://servicemanuals.vstore.ca/
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Jan 18, 2009 • Toshiba 50H72 50" Rear Projection...
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Toshiba Tv Problem
What is meant by "tears"?
If you can find a reputable tech he should be able to reflow solder a couple areas on the set and make your troubles go away.
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Feb 28, 2008 • Televison & Video
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When initially turned on the picture jumps around for several minutes
"Fonzie-ing it" ? It's terrible that I understood what that meant. lol

Sounds like the tuner has a bad solder joint. You may need a Repairman.

Geno
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Jan 24, 2008 • Toshiba 52HMX84 52" Rear Projection...
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Diagonal distorted picture
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Dec 14, 2007 • Toshiba 50H72 50" Rear Projection...
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Wavy Screen on Startup
I gather from your post that wavy can mean two possible things as the TV comes on, you see the picture flow like ocean waves? In this case you may have 60Hz hum modulating with the picture, this is actually unlikely these days, but I have heard it happens sometimes. The other thing it could be is light horizontal tearing. This happens when the horizontal frequency is too high or too low. You are not going to like my solution because I feel that for problems like this the set must be analyzed not just subjected to "shotgun troubleshooting", so here I go, Take the TV to a repair shop.
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Feb 28, 2007 • Toshiba 50H72 50" Rear Projection...
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