Question about Toshiba 50HX81 50" Rear Projection Television

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Issues with picture after moving Toshiba 50HX81 - picture is bad

We moved the TV downstairs and it had to be turned on its side to fit through the stairway door. When connected to the cable box, the picture is mangled and colors are off. The TV menu display is fine. Someone said turning TV on its side would break it. Any ideas?

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I would check for loose connections by the convergence amp ics
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on Jan 07, 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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At the bottom of the screen the words or picture is duplicated in blue in an arch pattern what is the problem


This is due to needing to adjust the convergence. Go to your menu using the remote. You may have to go into advanced to find the convergence option. This should allow you to merge the colors together on a grid. From time to time these projection TVs get this problem especially if they are bumped or moved. It's easy to fix. Make sure you sit of stand directly in from of the TV to move the color lines together.
Rob

Oct 24, 2009 | Toshiba 50HX81 50" Rear Projection...

1 Answer

Toshiba 50hx81 no picture or sound


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.
Thanks-

Dec 16, 2008 | Toshiba 50HX81 50" Rear Projection...

1 Answer

Toshiba TP50H15


You can adjust the lines and make them straight. You can also in the same process, make them line up.
1. With the TV on, press the mute button the remote control so that you have picture but no sound.
2. With remote in one hand (holding it as far from the TV as you can but still be able to reach the TV with your other hand), press and hold the mute button again, with the other hand, using the control panel underneath the screen, press the menu button on the TV set.
You will notice an "S" on the screen on the right hand side about 2/3 from the left, halfway up the screen (If you did this right).
This means you are in service mode.
With the remote, curse right only once and you will have some information displayed in the upper left. The top line is Item, the one underneath is Data.
Press "7." This will display the built in cross hatch pattern. You can move the line around with the directional circle located at the center of the remote. Using the "3" button, you can decide which color to move. To move the curser to a new location, The number pad doubles as a direction key pad. (2-up), (4-left), (6-right), (8-down). To simplify the process, you can eliminate the red or blue or green lines and only focus on one color at a time. "0" will shut on/off the green line. "100 button" will shut on/off the red line. "CH RTN or Enter will shut on/off the blue line.
"7" will exit the process as well as get you there.
Power off when you are done and turn back on.
Repeat as needed.

Jul 05, 2008 | Toshiba 50HX81 50" 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

Horrible picture after moving


Sounds like your convergence chip has gone bad.

Jan 25, 2008 | Toshiba 50HX81 50" Rear Projection...

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Toshiba 50hx81 Squiglly Lines


Bad hyper board = Needs rebuilt, technician skill level high....

Sep 15, 2007 | Toshiba 50HX81 50" Rear Projection...

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My TV will not come on but the power button blinks red!


Very interesting. I have a Toshiba 53 H71. Same issue. It occurred to me after a move.. No one has offered any help on it. Posted about a week ago. Guess no one knows anything about these TV's....

Sep 02, 2006 | Toshiba 50HX81 50" Rear Projection...

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