Question about Toshiba 50HX81 50" Rear Projection Television

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Toshiba 50hx81 Squiglly Lines

When you first turn on the TV the top half of the screen is squiglly. After the unit warms up (2 to 3 mins) the picture is normal. This occurs on all inputs.

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Re: toshiba 50hx81 Squiglly Lines

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

Posted on Nov 05, 2007

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White horizontal lines covering picture on Toshiba 51HC85

The set uses a Hyper board inside that processes all signals, it is well known for this issue, board no longer available=reason is quite simple : about a dozen tiny surface mounted filter caps on that board with age dry out, at first it will work after warms up as poor caps regain some capacitance and seem to be ok.

Buy a new set, you can send that board out and have it repaired/rebuilt but the last one I saw which was under extended warranty cost about 200 just for the board rebuild.

In the last 4 years Here on Fixya I have encountered only 2 people who were able with instructions had the skill to remove the board and replace those caps, both were top notch computer repair techs.

Dec 09, 2012 | Projection Televisions

1 Answer

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, 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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Glitchy picture with lines across screen when turned on

I can give you detailed guide describing exactly wich capacitors to replace . Your tv really only needs maybe 5 dollars worth of parts. But you must know how to solder and take things apart . also you must be able to put it back together. if only there was some way you could paypal 50 buck to me.;(

Oct 04, 2009 | Toshiba 50HX81 50" Rear Projection...

1 Answer

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.

Mar 07, 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.

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

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

i would check for loose connections by the convergence amp ics

Dec 25, 2007 | Toshiba 50HX81 50" Rear Projection...

2 Answers

Toshiba 42h81

Hello, one of possible solutions is to replace capacitors (10uF/50V) on HYPER (PD0246) module. Please ask the tech to check/replace them. If you need more info please advice.

Apr 27, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

Scrambling for first 15 mins

That is the exact problem I am currently having with my toshiba 50 in. I did some reading and it sounds like there is a temperature drift across one of the capacitors on the board and it takes longer and longer to warm up. Havent fixed it yet...

Mar 18, 2007 | Toshiba TP50H50 50" Rear Projection...

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