Toshiba 50HX81 50" Rear Projection Television Logo

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Anonymous Posted on Jun 29, 2010

Hello i have a 50hx81 toshiba television and i'm having problems w/ the screen....it's closing...how can i fix it?

  • Anonymous Jul 01, 2010

    Thank you...I got rid off my tv because it's only taking space in my living room and the screen has completely closed

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  • Posted on Jun 30, 2010
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Well if its close down in size you have a vert, problem

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Trying to locate a power button for Toshiba 50HX81 50 in. Rear Projection Television

Its called a micro-switch and they are fairly generic--look for a parts set similar to yours. If you need the actual plastic button array try Toshiba who might still have it.
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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.
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is a red tube problem needs to be replaced, or red output control board is bad. send to repair.
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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
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If you managed to find a manual or have resolved the problem, please post it back here to benefit others. You probably had a partial or complete power supply failure.
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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.
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Go to Powered Products List view all in my profile and read
Toshiba entries........Let me know how it is going.........T.
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Bad hyper board = Needs rebuilt, technician skill level high....
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