Question about Toshiba 57HX81 57" Rear Projection Television

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Convergence problem i have a toshiba 57hx81 and one day when i turned on the tv the colors were all messed up. so my friend tried to re-converge the lines and we got the red and green to match up but the blue wouldn't. when i try to touch focus it, it just says touch focus error. the sound still works and everything else too. any ideas?

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Re: convergence problem

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

Posted on Nov 02, 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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I bought this model from a friend and he mentioned that when moving the tv around it might get bumped a little bit and this could "throw the colors off". HE said i could pop the outter casing off...

Tv now have colors R,G,B lines mis alignments,have colors shadows or 3D pictures look alike?Yes,this tv have a problems known as a convergence problems,sorry but ur friend screw u over.This tv the convergence board is dead.The tv convergence board require replacing 2 STK convergence ICS and some or all of it resistors too.Fix the convergence board to solved the tv convergence picture problems.U have all the tools and can u 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.

Jan 22, 2011 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

Picture started flashing like 3-D in the hd ed mode

ll projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.



Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change



You can see some more examples and find a fix using this link on Fixya

Jan 14, 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...

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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

Color convergence messed up

you can get the convergence repair kit for your model that has both convergence IC and the six feed resistors at this link, The repair kit also has step by step instructions with pictures so you can do the repair your self. Heres the link.The 50H82 kit is the same for the 57H82,

Feb 01, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

PROJECTION TV Phillips 9P6031c103

this is what convergance looks like;

if pix is dark their is 6 adjustments knobs in the front of the tv under the screen and behind the plastic cover. the top three are the brightness bottom three is focus.

Nov 24, 2007 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Strange Image Flubbering/Convergence Problem, Flutters From Dark Picture To Light Picture.

you "tooled around with the convergence board" well this chassis has several problems if the convergence doesnt hold replace both stks resolder around that area per tosh tech bulletin the bright problem is probably the hyper module all toshs should be checked with toshiba website to see if they were part of the recalls for power supply caps

Nov 30, 2006 | Hitachi 50UX57B 50" Rear Projection...

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