Question about Toshiba 42H81 42" Rear Projection Television

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42h81 touch focus error

I have replaced the stk chips and can manually adjust convergense but the touch focu still will not work. Am i missing something? Is there a service manual anywhere for free?
shannon

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  • Toshiba Master
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You can get one at the following link, they are not free but the tech support they offer with the manual purchase is free.
http://servicemanuals.vstore.ca/

Posted on May 28, 2008

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COMO CUANTO COSTARA LA CONVERGENCIA DE COLOR VERDE


If can speak English I can help as my Spanish is limited---the convergence of green cannot be adjusted except in technical menu and if bad needs both the stk-392-110 chips replaced first.
5_29_2012_1_41_11_pm.jpg

May 29, 2012 | Toshiba 42H81 42" Rear Projection...

1 Answer

When the TV is on, on the outlines of people and text are in Red and Green lines. I have tried the touch focus and it is not working. it is saying that there is a "touch focus error" can I manually adjust...


you need 2 new convergence chips, part number stk 392-110, also check for burnt up resistors next to the chips, major disassembly and soldering, you probably need a tv repairman.

Sep 24, 2009 | Toshiba 42H81 42" Rear Projection...

2 Answers

Red out of focus


Hi. your convergence board is failing. this board regulates the the alignment procedure and , the chip set is damaged. replace the convergence board soon.

May 22, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

STK IC CHIP 392-110


I made the same repair in a Toshiba 42h81 I replaced the STK 392-110 and after a lot of searching found the cheaper ones last 6 month or so be sure to use Sanyo IC's and replace the resistors with them when the IC's let go they take the resistors out I posted my repair On my page if it will help you dennisgm052.weebly.com

Dec 02, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Hitachi 50ux26b/27k with AP63 chassie convergence problem


It looks like the STK chips need to be replace for fix the distorted colors.
You can download the service manual from here: http://www.eserviceinfo.com/downloadsm/11792/Hitachi_60SX12B.html

Feb 05, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

42h81


I am having the same problem with my red lamp. i get an error on the touch focus and I cannot manually converge the red lamp.
let me know if you find out a way to fix the problem

chad

Dec 27, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Still green


go In service convergence mode and try to adjust red and green if you cant then it's convergance amp ic's
if you can adjust them so they align up try doing a touch fous after that,.

Dec 16, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

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...

2 Answers

Red is out of line


Is time to call a Pro,the repair will need parts replaced and then it might need to be adjusted from the service menu.

Sep 19, 2006 | Toshiba 42H81 42" Rear Projection...

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