Question about Toshiba 42H83 42" Rear Projection HDTV-Ready Television

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Toshiba 42H83 Touch Focus Problem

Currently the screen is not aligned correctly. The bottom of the screen when you touch focus does not allow the line towards the left of the screen to properly align. The picture and screen are there but the picture is distorted. Is this something expensive?

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I just got finished repairing the same model . The convergence modules are bad cost of repair is 250.00 for a service center to fix. My advice would be call your local service center tell them what i told you bad convergence ic and ask them how much they charge,


thanks doctor video good luck since 1987

Posted on Jun 14, 2008

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My Toshiba 42H83 has developed a color problem. The color blue is about an inch off the other colors, the picture looks like a 3d movie without the glasses. I have used the touch focus button on the...


Alot of rear projection t.v.'s have a convergence option in the menu on the t.v. There you can set the try to set the colors back how their supposed to. Mine has a cross in the middle of the screen and you just have to try to get all 3 colors to line up. Unfortunately, the actual lens inside mine has to be aligned so it doesnt work. Just something to try though, hope it helps.

Jan 05, 2010 | Toshiba 42H83 42" Rear Projection...

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I have blue archimg on the bottom of my 42h83.


replace the two STK392-110 convergence Ics and the six 1.8 ohm 1watt resistors.

Dec 06, 2009 | Projection Televisions

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Hi, my tv shows a double image with red outline I pressed the Touch Focus and the red did not have a verticle was straight line, but the horizontal line was not straight, but came back with touch focus...


you have a convergence problem
it will require a couple new ics its best to replace as a pair stk392-110 although i recommed using the stk392-150 as a replacement and also there are some jumpers that should be resolderd on those boards to assure continued operation hope this helps you

Sep 11, 2009 | Toshiba 42H83 42" Rear Projection...

1 Answer

Convergence issues with Toshiba 42H83 - Red lines will not align


Absolutely! if the consumer control has failed to rectify the problem you need expert help. There are two control boards near the power supply 1 or both are involved and more than 90% of the time both of the boards have to be replace otherwise the problem will occur again in a short time.
It is not a DIY project for the unskilled as it has to be tuned correctly when it is installed.
Better to leave it to the professional

Please rate the help to keep the FREE service online ++++

Aug 31, 2009 | Toshiba 42H83 42" Rear Projection...

1 Answer

Double outline "red" around images


Hi you have bad convergence ic stk modules ,Cost for repair center to fix is 250.00. call your local repair center ask there prices on convergence ic repair. It is a very common problem every 3 to 5 years .Our service center does a lot of these.


thanks doctor video 1987

Jun 01, 2008 | Toshiba 42H83 42" Rear Projection...

2 Answers

Toshiba 42 inch rear projection T.V.


this sounds like a convergence loss... the most likely cause of this is what is known as stk's or convergenc ic(chips) have gone bad.. also it cound be the output resistors. most likely need replaced

May 12, 2008 | Toshiba 42H83 42" Rear Projection...

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42H83 auto touch focus ERROR and hyper board bad?


repleace cap for $ 80 , thats good , the error is do to comvergenge aligment

May 03, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Double Picture


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
http://www.hdtvoice.com/voice/index.php?s

Jan 05, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Will not 'Touch Focus' - Toshiba 42H83


1)I have yet to learn any advantage to replacing -110's with -150's
I think there is a misconception that increasing numbers =
better,more durable results....Actually, using OEM or better
quality should be most important.Generics from any source
tend to be seconds,thirds, junk ! Name brand are first quality
2)Check B+ feed resistors next to convergence IC's = burnt ?

3)Solder wire jumpers on signal board = 008,010,017,600,etc.
prevent maitenance

Dec 20, 2007 | Projection Televisions

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