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

2 Answers

Toshiba 42H83 projection TV red convergence issue

I know what the problem is and I guess I kind of figured that I have to replace the red convergence chip. ok.. with that being said... I have looked all over the place to get the part. When I looked into what the present "messed up" chip has onit. It does indeed have the "STK" on the chip. That is it though. How do I know which chip to get and where on earth can I purchase one? if you could send a link pls. My TV is driving me nuts. my green and blue are working fine but there are red lines all through it. It is a projection TV. also... when I open the back of my TV, The red convergence chip was right there,,, very accessible :) I think I could do it on my own.

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  • mkmqangl Jul 12, 2008

    Thank you so VERY VERY much!!!!!!!

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2 Answers

When I opened up the STK area on my TV, I found that the STK # is actually STK 392-110 That was the number was on the blk box.

Posted on Jul 28, 2008

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  • Toshiba Master
  • 8,617 Answers

The Convergence Ics are STK392-110 ICs you can get replacement Ics at the following link and they provide free instalation instructions.
http://servicemanuals.vstore.ca/

Posted on Jul 03, 2008

  • Sonny Berry
    Sonny Berry Jul 12, 2008

    Excuse me your set actaull uses STK394-250 ICs . Toshiba changed the ICs for the H83 Models. Sorry for posing the wrong number, yours is the only Toshiba that uses that number STK

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1 Answer

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?


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.

Jul 18, 2010 | 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

How do i get the blue and red lines to line up


They are adjusted through the convergence control in the menu.If they do not adjust, the convergence IC's are bad and need to be replaced.
Call a good TV Tech.

Jul 30, 2009 | Toshiba 42H83 42" Rear Projection...

1 Answer

I have double vision on my projection tv (toshiba 42H83).


Sounds like your convergence chips have failed. This is a common problem. You can get a repair kit from www.TvRepairKits.com .

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

1 Answer

Convergence problem with Toshiba TV 42H83


I am still working on it! Need a technician in Alacante Spain!

Jul 25, 2008 | Projection Televisions

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 model tz50v61 convergence


need to repleace convergence ic # stk392-110 or stk392-160 on hitachi brand

Mar 16, 2008 | Toshiba 42H83 42" Rear Projection...

4 Answers

Convergence problem with Toshiba TV 42H83


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
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2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Aug 04, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Toshiba 42H83


Most projects in life are "easy",if you know how.Chassis will have to be pulled,convergence IC's replaced w/top quality parts to prevent recall.Some excellant soldering will be needed for prevent maintenance,for instance,the steel jumper wires feedig b+ to convergence IC's. RE-align in servicer mode==final step.

Aug 03, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Toshiba 42H83 rear projection tv turns on but i have no picture or sound. happened suddenly. What can troubleshoot before seeking proffessional hel.


Check all micro-fuses in power supply.If two or three are bad,a convergence circuit O/H will be necessary.Pro help usually required-chassis pull,replace convergence IC's and careful hand- soldering needed to prevent call-back.

May 21, 2007 | Toshiba 42H83 42" Rear Projection...

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