Question about Toshiba 50H81 50" Rear Projection Television

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Convergence problem The TV colors are all distorted. I tried the touch focus and get TOUCH FOCUS ERROR. I tried to manually converge the colors and the green is way off. I can move the red and the blue but can't converge them to the green. What do you think is the problem.

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  • hamild15 Jun 28, 2008

    I have the same problem. Any ideas of a solution?

  • duhtroll Sep 27, 2008

    What does this procedure cost, or just the parts? Mine just started doing this tonight.

  • califslo Oct 29, 2008

    mine was purchased in 2001,......having the same problem except the blue is what's distorted....and I too get the focus error

  • furryl Nov 01, 2008

    We are having the same issue - can line up the red - but not the blue ... how much does it cost to fix?

  • tracidawn Nov 06, 2008

    I have the same problem with the red and blue not being connected and it looks 3-D. Is it worth fixing or cost too much? HELP!!

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Replace the Convergence amplifiers. Mine did the same. It was like watching a 3D movie without the glasses. It is not hard to do for someone who knows their way around a circuit board repair. Otherwise call a reputable service shop.

Posted on Jul 10, 2008

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1 Answer

Got new STK392-040 chips and picture is still distorted. Manual convergence still won't alligne all colors.


the 183 is entry into the tech menu===you need to test all the low value resistors around the convergence chips(only 6 or 8) and they will read low and a resistor with NO reading may be your problem.

Also these sets use a pico fuse going to each chip--either right with it or back at the source----know what a pico fuse looks like"

Mar 12, 2012 | Samsung HCM4216W 42" Rear Projection...

1 Answer

Touch focus error blue


The tv HYPER board it is dead aslo known as a tv convergence board.Tv have a convergence problems,it is dead.Tv Magic Focus button no longer response give error messages.Tv have any colors lines R,G,B mis alignments,have colors shadows pictures or 3D picture look alike?Yes,than the tv HYPER board it is dead also known as a tv convergence board must have it components parts replaced like 2 STK convergence ICS and some or all of resistors too.To fixed the tv HYPER also known as a tv convergence board to solved the tv convergence pictures problems.The tvs shops will cost u like $300-350 for parts and labors.

Aug 12, 2011 | Toshiba 42H82 42" Rear Projection...

1 Answer

Screen looks distorted when on, what should i do?


Tried push the FOCUS buton on the remote or tried convergence aligment,R,G,B colors lines don't lines up,picture have colors shadows or 3D pictures?The tv have a convergence pronlems,it dead.The tv convergence board is dead.Try website like Tvrepairworld.com to buy a whole convergence board for the replacement.The AKAI/SAMSUNG tvs are using the same convergence board.

Sep 22, 2010 | Samsung PCL6215R 62" Rear Projection...

1 Answer

"touch focus error" appears when the test is completed. There is a double effect showing on the pictures and the words. What can be done to fix this?


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 photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

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

Aug 14, 2010 | Toshiba 65HDX82 65" Rear Projection...

1 Answer

I have a double image on my screen. When I push


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou 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

Feb 21, 2010 | Toshiba 65H81 65" Rear Projection...

2 Answers

Toshiba 50hdx82 tv touch focus error blue is bowed.


Convergence is dead.Know how to solders.Must replaced the 2 Convergence ICS,and all it resitors.To do it ur self repair buy a convergence kit at Tv repair World.com,Repeairkits.com.The shop will cost u $300 for parts and labors.

Feb 04, 2010 | Toshiba 50HDX82 50" Rear Projection...

1 Answer

Toshiba 57hx81 tv has a bow at bottom of screen and blue in color tried using toush focus & got error then tried to focus manually & couldn't get the bottom lines to focus all the way down


noted in the owners manual, if auto focus returns message "error" , it suggests to use manual convergence setting..failing that, is it resonable to suspect that the STK-392-110 (convergence (2)chips)are beginning to fail, bendt horizonital lines is the effect. you can check all the resistors and pico fuses (power board)near the chips for shorts, chances are they are ok. seeing that there is somewhat of a picture (kinda like 3-d). i would repaired it!.. while your there do the hyperboard repair as well by replacing the 10 caps with 16v@10uf. (causing a wavy vertical distortion effect).

Jan 12, 2010 | Toshiba 57HX81 57" Rear Projection...

1 Answer

Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

Dec 02, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

51" sony projection with distorted pic and color


The convergence amplifiers are likely blown.
Fairly easy fix if you are good at soldering.
Search this site for convergence repair.
Dan

Sep 09, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Touch Focus/manual convergence


· http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
· http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Oct 14, 2007 | Toshiba 57H81 57" Rear Projection...

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