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We have a rear projection tv and we cannot set the convergence on the red and blue lines to the green. IT is a toshiba 50HX81.

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

Posted on Jun 29, 2008

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Toshiba 50HX81 TV looks kind of old school 3D with red and green hue. Bad bulb? How involved is this to fix and where do I find parts?


No,not the bulb problems.Tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look like.The Toshiba tv have a "HYPER BOARD"known as a convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the convergence board,must be replaced to solved the tv convergence pictures problems.U have tools like a soldering iron,desoldering pump or desoldering braids,solders?Can u do basic soldering?Tries websites like Tvrepairworld.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop,will cost u $300-350 for parts and labors.

Oct 21, 2010 | Toshiba 50HX81 50" Rear Projection...

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Information on seeting convergence for 50hx81 tv


In the customer menu select convergence with the Toshiba remote.

If it is skewed and or will not adjust you have a convergence circuit problem. If this is the case let me know and I will tell you what is involved to repair the set.

I have fixed hundreds of sets with this kind of trouble.

If this has helped you, rate this solution as I do this here for FREE.

SD TECH

Nov 24, 2009 | Televison & Video

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REd light blinking on my 50HX81 CRT TV- Toshiba,no


Check out the link below. Seems to be a power issue. Not sure if it is worth fixing.

http://www.justanswer.com/questions/1opaa-50hx81-tv-not-turn-power-button

Mar 07, 2009 | Toshiba 50HX81 50" Rear Projection...

1 Answer

Red double picture with green and blue


convergence problem there are 2 integrated circuits inside the set needs to be replaced

Aug 25, 2008 | Toshiba TZ50V51 50" Rear Projection...

1 Answer

Toshiba Rear Projection TV


In the videomenu theres an option called convergence. you can shift blue and red color arround the green on, hopefully solving you're problem.

Good Luck

Jul 20, 2008 | Toshiba 43A10 43" Rear Projection...

1 Answer

Toshiba TV 50HX81


Check fuses on Power Supply board (F850, F851, F852) and all other fuses. Replace blown fuses (will need an ohm meter to check fuses). I would also replace the two convergence amps (STK392-110's on the signal board, the big black ICs on the two heat sinks). This worked for me.

Mar 30, 2008 | Toshiba 50HX81 50" Rear Projection...

1 Answer

Toshiba tv


convergance amp ic bad.
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 07, 2008 | Toshiba 50HX81 50" Rear Projection...

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