Question about Toshiba 42H81 42" Rear Projection Television

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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 the guns?

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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.

Posted on Sep 24, 2009

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Posted on Jan 02, 2017

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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

Green, red, and blue lights don't line up on screen


hi you have faulty convergance ic also there may be some faulty resistor and capacitors that sit in front of the ic, thanks

shaun

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Images have red and green outlines on them picture somewhat fuzzy


your convergence ic's are Shorted

They have a kit for this tv it is available through local parts distributors
If you can't find it locally just Google HITACHI CONVERGENCE KIT

If you are not good with de-soldering and soldering do not attempt this repair. Remember to replace all the resistors in the kit

If you are not sure about doing this repair you should have your local tv guy do it for you


I

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2 Answers

Toshiba 57h81 green will not focus


Typically this is a convergence problem and can be repair relatively easy. Refer to this video to determine if you truly have a convergence problem. Also make sure you use your TV's original remote to make this adjustment.

Nov 15, 2008 | Toshiba 57H81 57" Rear Projection...

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...

1 Answer

Aging 43H7143


http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 24, 2007 | Toshiba 43H71 43" Rear Projection...

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Philips 55PP9401 ProjectionTelevision


it seems as you need your tubes re-alinged dont get riped off by tv experts saying it will cost you loads if you have a screw driver and a gentl touch just re focus your red green and blue-simple cost you nothing

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Blue ghost


If you have the ability to work on solid state electronics and know how these circuits work, you will need to replace the convergence IC's in this TV set. If you do not, call in a pro to assist you in this repair. Good Luck

Jun 20, 2007 | Toshiba 43H71 43" Rear Projection...

1 Answer

Convergence not lining up


Sounds like the green is out of focus. If the focus control for the green does not control it enough to make the width the same as the red, then, the lens on top of the green can be adjusted to focus that tube. On the lens, there is a wing nut on a screw to loosen it and move the lens left or right a bit to help with the focus. Hope this helps.

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1 Answer

Convergence problem


sounds like bad solder connections on convergance ic solder then if the problem still there replac ic

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