Question about Toshiba 42H81 42" Rear Projection Television

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Stk392 What is the difference between a -110 and a -120 or -150 in the stk392 series? I want to replace these in my Toshiba 42h83 and want the best for the bang.

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  • joekin Jan 13, 2008

    many thanks!! joe

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We have always used the 150 in place of the 110 and 120. My shop has never had a problem and they are a heartier IC.

Posted on Jan 13, 2008

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Where is the cheapest place on line to get a convergence chip for toshiba


Newark electronics has very good prices for the Sanyo STK's. I wouldn't recommend buying the cheapest one you can find because it will be a copy and go bad again. The STK392-180 can be used. It has a higher rating and only costs $10 at newark.com.
You should replace both STK's and check the resistors near the heat sink and the fuses on the power board. Also check all of the solder joints.

Jan 13, 2010 | Toshiba 42H83 42" Rear Projection...

1 Answer

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 | Televison & Video

1 Answer

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

42H83 Convergence


Yes the convergence ICs need to be replaced, however so dont the six 1.8 ohm 1watt resistors as Toshiba recomends replacing those six resistors when the ICs are changed. You can get the 50H71 / 50H82 Convergence repair kit as the 42H83 is identical to the 50H71 series, so the kit will work for your model. Heres the link where you can get the kit.
http://servicemanuals.vstore.ca/

Aug 10, 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...

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 | Televison & Video

2 Answers

Convergence


Convergence amps can be upgraded from STK392-110 to
Hitachi brand STK394-160E Part # CZ 01341.....
+ Check B+ micro fuses F850,F851,etc.
+ solder bad connects on wire jumpers 008,010,017,048,600.
If you don't solder jumpers,you may blow fuse ( again )......T.

Let me know.............................

Nov 27, 2007 | 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

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...

2 Answers

What is it with the 53H71..... Its only 4 years old !!! I know that I am not alone here.


i would write to
Toshiba America, Inc.
1251 Avenue of the Americas
Suite 4110
New York, NY 10020

Mar 04, 2007 | Toshiba 53H71 53 in. Rear Projection...

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