Question about Toshiba 42H81 42" Rear Projection Television

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Tv picture is shakey

Picture is shakey for like 5 minutes until TV is warmed up, then pic is perfect. Once TV is done shaking the problem doesnt happen again until TV is left off for awhile.

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  • brinicol Jul 08, 2008

    I also have the same problem with a wavy shaky picture until the tv warms up for 5-10 minutes then it is crystal clear and steady. Do you know have costly it would be to fix, or if left will problem worsen. Thanks.

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  • 1,694 Answers

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

Posted on Feb 13, 2008

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Zenith z56dc1d dlp tv picture works for about 1 minute then starts shaking and tv shuts off


You may want to get it in a rather warm room and or remove rear cover and use a hairdryer to warm everything up inside the Cabinet--with rear cover off look to see if the fans are dirty etc and if they all come on, if a DLP especially look at the lamp itself and the fan that cools it.

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Bad picture until tv warms up


well its a problem fo an ic causing the issue that needs to be replaced

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try adjusting your color tuners located inside tv behind speakers.

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Shakey Screen


That problem is caused by defective capacitors on the Hyper Board location UZ01 stamped MVPU14. You will need to have a technican remove the board and replace all the 10 uF @ 16 Volt SMD caps p/n 24619040N found on that board. The Hyper board is no longer available as a part.

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1 Answer

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You have a bad capacitor in your power supply.

Dec 22, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57HX81 57 in. Rear Projection


Im guessing the the convergance ic are bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 19, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

Video distortion


unplug the tv before you go to work or for a couple of hours then plug it back in and let the tv warm up for 15 minutes and adjust the covergence

Dec 11, 2007 | Projection Televisions

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Shakey Picture


bad cap, spray some freeze on it till it comes back and you will find the bad part.

Nov 17, 2007 | Toshiba 65HX81 65" Rear Projection...

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On bright screens picture goes to white and shakes


Sounds like a bad crt, also has you set been used to play video games if so this could be a cause for bad crt, weaking tubes

Oct 23, 2006 | Mitsubishi WT-46807 46" Rear Projection...

1 Answer

Initially No Picture when Turned on but sound normal and 5 minutes later Picture is all RED and then Picture becomes NORMAL (all normal colors)


theres a high voltage block that all three of the anode leads attach to and sometimes a small crack happens across this block and will not let some or all of the crt's get the high voltage all at once untill it heats up a bit. now if this is not your problem i would make sure that all three crt sockets are attached to there tubes all the way as maybe justy maybe there loose and will only work after ther expand a bit. Now another problem that could cause this problem to occor origially would be that someone left off a crt ground strap and the crt arched and popped and caused the problem with the High voltage block. And no I cant see a tube being bad then comming on at first UNLESS when you say the red comes on is the picture all red with small retrace lines(small white lines)in the screen with no picture except for red???? No video only a red blank screen is what i mean. If thats what its doing then yes Ive seen heater to cathode shorts on a picture tube that would cause this problem but to be sure your really gonna need to have the set looked at.. Good Luck

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