Question about Toshiba 57HX81 57" Rear Projection Television

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Rolling lines from bottom to top on Toshiba 57hx81

Hello! I have a Toshiba 57hx81 and recently began having problems with it. At all times when tv is on, there are lines that roll from bottom to top, sometimes slowly, sometimes fast. The lines are seperated about 2 feet, always seperated the same distance. I thought I might have been getting intereference from something but couldnt eliminate a possible source. This is happening when I watch both cable and dvd's. Thanks, Mike

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Re: rolling lines from bottom to top on Toshiba 57hx81

Hyper module out, picture become spuratic, due to frequency
drift in tuner sub assy. , module 23148024 , needs new
capacitors, 10mfd X 16 vdc....problem is! this module is no longer available, so if you can find a source great!.. expect to
dish out $230.00 + for part, not unless your an electronics guru,
and replace capacitors...AP

Posted on Nov 20, 2007

Re: rolling lines from bottom to top on Toshiba 57hx81

Sounds like filter cap in the main ac power supply if you can spare 100.00 you can buy a incircuit cap tester from mat electronics they work great make sure tv in not plugged in and caps are discharged get back to me

Posted on Nov 02, 2007

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Re: rolling lines from bottom to top on Toshiba 57hx81

Mike I suppose it might be the Flex converter failing on you, you will probably want a repairman on this one, these are really complicated to work on and if there is about 5yrs of age on set it may need sent in for a rebuild on the flex.

Posted on Jul 09, 2007

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Hyper module replacement

This HYPER board for Toshiba tv now is really rare.Try website to find a refurbish one.Ur tv is having convergence problems?Colors R,G,B lines mis alignments,have colors shadows or 3D pictures look alike?U have all the tools and can do basic soldering?Yes,tries websites like, to buy a convergence kit to repair it ur self.Or the shop,will cost u like $300-$350 for parts and labors.

Feb 13, 2011 | Toshiba 57HX81 57" Rear Projection...

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Toshiba 57hx81 tv has a bow at bottom of screen and blue in color tried using toush focus & got error then tried to focus manually & couldn't get the bottom lines to focus all the way down

noted in the owners manual, if auto focus returns message "error" , it suggests to use manual convergence setting..failing that, is it resonable to suspect that the STK-392-110 (convergence (2)chips)are beginning to fail, bendt horizonital lines is the effect. you can check all the resistors and pico fuses (power board)near the chips for shorts, chances are they are ok. seeing that there is somewhat of a picture (kinda like 3-d). i would repaired it!.. while your there do the hyperboard repair as well by replacing the 10 caps with 16v@10uf. (causing a wavy vertical distortion effect).

Jan 12, 2010 | Toshiba 57HX81 57" Rear Projection...

1 Answer

Hello I have a Toshiba 57hx81 projection TV and one day It just went out blank screen it gets power just now sound or picture. so my question is where are the fuses located? i looked and cant seem to find...

pico fuses are located on the brown board left side after the back cover is removed. they are scattered all over that board, but are reconized by the board markings Example: F470-120v @2 amps.

check all solder jionts, a common problem

Jan 03, 2010 | Toshiba 57HX81 57" Rear Projection...

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Toshiba 57hx81, has a slight squikgly line near the top of screen, colors seemed faded, not bright. i did the convergence adjustment and adjust the colors/focus with front lower right screws..Is there a...

jhinsincity: you dont need to be here, do you? the problem are the caps on the hyperboard, 10 -16v@ 10uf, rear access right hand green board, model 57hx81, the hyperboard must desoldered from main board. read the post on wavy lines,,

Dec 30, 2009 | Toshiba 57HX81 57" Rear Projection...

1 Answer

My 57hx81 has a slight concave bow in the middle top to bottom

Sounds like a problem in the vertical sweep circuit. Check voltages to your convergence ICs. If they are  not to spec then look for bad fuses and capacitors on the power board. These will throw off the DC voltage to the convergence chips causing the bow effect. I've had a single bad pico fuse ($1) cause this symptom. 

Dec 06, 2009 | Toshiba 57HX81 57" Rear Projection...

1 Answer

57HX81 projection tv,color is mostly red and picture is double.

This is a convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$300

Sep 28, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57HX81 is all wiggly and distorted (youtube video attached)

I don't know about that. Someone probably was rough with it and messed them up. You should have a technician look at it.

Jun 16, 2008 | Toshiba 57HX81 57" Rear Projection...

1 Answer

Convergence problem

sounds like bad solder connections on convergance ic solder then if the problem still there replac ic

Oct 24, 2006 | Toshiba 57HX81 57" Rear Projection...

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