Question about Toshiba 50HX81 50" Rear Projection Television

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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?

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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.

Posted on Oct 21, 2010

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Posted on Jan 02, 2017

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1 Answer

TV has RED and GREEN colors distorting the color output of the TV. Can not simply adjust color and hue. Red and Green still remains controlling and dominant. How do I fix this?


If it does this on all inputs then it is the tv itself. You can try different sources and cables to see if the problem is not the tv. If the problem is the tv I would suggest having the tv repaired. It looks like a nice unit so it would probably be worth fixing. I would find a reputable local shop to take it to.

May 25, 2015 | Sony Bravia KDL60EX720 60-inch 3D LED TV

2 Answers

Everything looks out of focus and the color hue is really bad. how can i fix this


Tv have a problems known as a convergence problems.The tv convergence board it is dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?Yes,than the tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts on the tv convergence board must be replaced to fixed the tv convergence board to solved the tv convergence picture problems.U have all the tools and also can do ICS chips soldering?Yes,than tries websites like Tvrepairworld.com,Tvrepairkits.com to buy a tv convergence kit that belong to ur tv make and model and repair it ur self.Or the shop will cost u like $300-350 for parts and labors.

May 07, 2011 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

Picture has a white hue. Is this a bulb problem and if so how do i know which one


projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


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Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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69189a5.pngSOLUTION

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jan 16, 2011 | Philips 55PW9383 55" Rear Projection...

1 Answer

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

2 Answers

Picture looks like 3D. The writing and picture look like they have a doubled effect


This is a convergence problem that can be as simple as poor connections at the convergence ICs or defective ICs. If you can solder and are comfortable working inside the set, you can probably repair this yourself. If you wish to attempt the repair, please confirm the model number so I can give you the part numbers and I will update this with additional details and instructions.

Dan

Oct 25, 2009 | Toshiba 50HX81 50" Rear Projection...

1 Answer

Looks like 3D tv


Try doing a calibration. Projection TVs work with 3 picture tubes (Red, Green, Blue). The Red may be off to one side causing the hues.

The manual is available here for instructions on how to perform calibration:
http://www.retrevo.com/samples/Hitachi-manuals.html#Projection%20TV

Apr 06, 2009 | Hitachi Televison & Video

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...

1 Answer

Red screen on 50" toshiba rear projection


red tub bad, you can adjust the red tub when you take the lower part of the front panel off and the plastic cover under the front screen
there will be 6 controls on the right hand side the three top are the brightness look for the one mark "R" and see if turning it down helps.

Dec 02, 2007 | Toshiba 50HX81 50" Rear Projection...

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