Question about Toshiba 42H81 42" Rear Projection Television

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My toshiba 42h81

The red focus line does not move sideways when I push auto focus.Then it says focus error.The picture has a double image like the red is not lined up.

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  • superpainter Dec 29, 2007

    Is the convergence amps the same in the 42h81 and the 42h71.There is directions for the 42h71.Are they repaired the same way, and do they have the same part#And does my 42h81 have the same part#?Does each color have a seperate part# and should all of them be replaced,or is there 1 that controlls all of them.Thanks Superpainter

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  • 205 Answers

Your convergence amplifiers have failed. There are lots of posts on this site for this problem. Take a look at this link:

http://www.fixya.com/support/t261950-43h71

There are a couple of links on this post that you will find helpful if you want to repair this yourself.

If you have more questions just ask.

Posted on Dec 28, 2007

  • ohiotom Dec 29, 2007

    I believe they will be the same in both sets. There are two convergence amps, and while it's possible only one of them is bad, you should replace them both while you have everything apart.

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Posted on Jan 02, 2017

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1 Answer

Auto focus has error. blue gun will not converge with teh red and green. On the auto focus the blue gun won't move verticaly


IF you do not get the right answer in the Chat session, close it and I will help you-----I know these sets very well.


SD TECH

Dec 28, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba TV Model 42H81 will not focus


Ur convergence it dead.Buy the kit and replace the ICS an the resister.Focus don't go that far.

Aug 11, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Convergence -manual


Replace the convergence amps and test and replace any or all of the 2.2ohm resistors in the yoke return path out in front of the amps. This unit takes two STK392-110 Sanyo originals, DO NOT GET CHINESE KNOCK-OFFS... Buy them from Acme sales out of Florida and you can be assured they're originals.
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993

Oct 11, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Like seeing double!


You need to replace both convergence ICs they are STK392-110. You can get replacement Ics with free instalation instructions with pictures at the following link
http://servicemanuals.vstore.ca/

Jul 14, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Red line


Need convergence IC's and probably several resistors that have changed value. Seek professional help, someone who uses ORIGINAL ic's, not generic or knock-offs

Jan 03, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

TOSHIBA REAR PROJECTION TV 42H81


you have a convergence problem that will require the replacement of the convergence amp ics.

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42H81 touch focus error


check for bad solder connections on the connvergence ics if that dont fix it then replace them

Nov 01, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

Help I have a 3 D image


You need to replace 2 ships stk 392-150 any question I'll be glad to help you 401 6170008 my name is George

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