Question about Toshiba 42H81 42" Rear Projection Television

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Toshiba 42H81 - Constant jumping picture on scren

The picture just keeps jumping on my Toshiba 42H81. The TV will show perfect for about 2 hours, then the picture starts jumping. If I turn off the tv for a few hours, when I turn it back on, it shows good for about 30 minutes, then the picture starts jumping again. Now the jumping is constant. Last year, I had the same problem and I paid a repair man $400 to change the original board with a refurbished board. However, it seems like the problem has reoccurred. Can someone tell me what is the problem here or is this tv a lemon? It doesn't make sense to me why would I encounter the same problem if the whole board was changed. Walt

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  • Walt James Dec 11, 2006

    Thanks for responding.

    Approx. how much will it cost to purchase the hyper module and the stks packs? Is this a big job for a repairman?

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It needs the hyper module replaced might as well have em do the stk packs too its too old to be a lemon the part that was replaced was not new it was in someone elses tv and had problems there too the trick is to find someone that will fix it so it lasts

Posted on Dec 09, 2006

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Posted on Jan 02, 2017

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1 Answer

What causes blurry/wavy picture on Toshiba 42H81 TV?


Ur convergence is dead,must know how to solders?Buy a convergence kit at this websites.Tv repair World.com,Tvrepairkits.com.

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Ur convergence it dead.Buy the kit and replace the ICS an the resister.Focus don't go that far.

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1 Answer

Picture looks like it is jumping


Sounds like a vertical sync issue on the chassis board. However you also mentioned the picture moves left to right or vice versa which would suggest a horizontal sync issue. Either issue is not repairable by the DIY. Sync issues must be isolated using test equipment usually found in repair shops. My suggestion push it down a hill and enjoy the show then go buy that flat screen you almost purchased last week.

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1 Answer

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Bad capacitors on Hyper module = no longer available, but
can be rebuilt by PTS Corp or a qualified tech...........T.

Feb 13, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

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Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
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cost for DYI is about 60 bucks

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1 Answer

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Bad hyper module = no longer available = have qualified tech
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1 Answer

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Any horizontal or sqiiggly lines in the picture or just a loss of light level?

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2 Answers

Toshiba 42h81


Hello, one of possible solutions is to replace capacitors (10uF/50V) on HYPER (PD0246) module. Please ask the tech to check/replace them. If you need more info please advice.

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Blown fuse over and over


you need to solder all the connectors and plugs between the 2 boards

Mar 05, 2007 | Toshiba 42H81 42" Rear Projection...

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