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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  • JCannon Dec 20, 2007

    Same problem. How much to have a technician fix? TV is from 2002, is hyperboard available

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

Posted on Nov 05, 2007

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1 Answer

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 | Televison & Video

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 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...

1 Answer

There are vertical 1" to 2" black lines that come and go. They are on the top half of the screen only. Also, the TV takes 40 min of flashing before the picture comes on. Our TV is about 5 years old. ...


Yes,This tv have two problems.One is the power supply board have dead capacitors,need it to replaced,the other is the vertical lining board on the bottom near the speakers need all the old lining to resolders.The shop will cost u $ half to repair,it to buy a new tv.

Apr 04, 2010 | Toshiba 42HP84 42 in. Plasma HDTV

1 Answer

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

FUZZY PICTURE


1 thing you can try. sounds silly but. the older a TV is the 75om cable in the back. un hook it, clean it with a tuch of alohol, and the post it hooks to. dry it good. and put it bake on tight. must times the white line come from a dirty, wore out, or bad cable to the set. best way to test this is wiggle the cable behind the set. if the intenstty of the lines change, it's you cable. replace is. hope this helps.

Mar 20, 2009 | Televison & Video

2 Answers

Plasma "warm up" is now up to 30 minutes and climbing


put a towel across the top of the tv so it can heat up faster and you will get your picture. be carefull!!

Jan 26, 2009 | Televison & Video

1 Answer

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


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

Dec 25, 2007 | Toshiba 50HX81 50" 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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