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

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My Toshiba 42H83 (2004) has double (or triple) images. Is this something that can be fixed? Is the repair some sort of lamp? If so, is that an easy fix?

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This tv have a problems known as a convergence problems,it dead.The tv convergence booard the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board, must be replaced to solved the tv convergence problems.The shop will cost u $300-350 for parts and labors.

Posted on Jul 18, 2010

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Posted on Jan 02, 2017

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The old projector TV's are using 3 lamps for Red Green Blue....in your case the Green lamp stopped working....either the Green lamp burned or the lamp board is defective.

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Yes, the convergence IC's need to be replaced. If you are not experienced in TV repair, I would recommend getting a qualified repair man to do it for you.

Here is a link with instructions on how to do this, if you feel adventurous:
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

Should you find this info useful, kindly take a moment to "Accept" it. Thanks.

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1 Answer

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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...

1 Answer

Double imaging


The Toshiba 55H70 is a standard rear projection set. It does not have a "lamp", it has 3 picture tubes. When the colors suddenly do not line up on the screen, it means that one of your convergence output IC's has burned out and needs to be replaced. This is very common on those sets. If your set is using the STK392-110 IC's, it is probably a good idea to go ahead and replace both IC's with the newer upgraded STK392-150 IC's. The IC's should be replaced and the convergence circuits realigned by a qualified tech familiar with Toshiba projection sets.

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