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I have a Toshiba TV Mod 50H81 that has blue lines in tv it looks like a convergence. ?? Pat

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Hi,
Can you please provide more details about blue lines in picture problem?
It will help me to diagnose problem, did you tried to adjust convergence through convergence adjustment option in menu?
Thanks.

Posted on Mar 11, 2011

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Focus error 50h81 toshiba red line problem


Tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows or have 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.These parts must be replaced on the tv convergence board to fix it.To solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Jan 01, 2011 | Toshiba 50H81 50" Rear Projection...

1 Answer

The screen on our 50H81 Toshiba is blank, there is no audio and the red light by the power switch is blinking at a rate of one blink per second.


The most likely cause is shorted convergence chips and possibly a few pico fuses.

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 a convergenece repair kit with instructions from the links below.

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

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*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

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 17, 2010 | Toshiba 50H81 50" Rear Projection...

1 Answer

My toshiba tv 50h81 has double letters red and yellow it fails the touch tone test every time


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. 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, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

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

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV2_bing.gif may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 08, 2010 | Toshiba 50H81 50" Rear Projection...

1 Answer

The touch focus on my 50h81 says touch focus error, the red vertical is crooked. There is a red and touquoise line surrounding everything on the picture.


Ur convergence is dead.U must know how to solders?Must replaced 2 convergence ICS,and some or all the resistors.Tries websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost $300 for parts,and labors.

Mar 15, 2010 | Toshiba 50H81 50" Rear Projection...

1 Answer

The red will not line up when it is in the


You have a yoke and screen voltage issue with your red crt tube. If the red moves but not enough to do the convergence then you may be able to adjust the red crt. If the red doesn't move at all when you try to do the convergence then you most likely have bad convergence IC chips that need to be replaced. They aren't expensive, the last pair I did cost $36, but it involves taking the set apart and doing some tedious soldering. If you have no experience with this sort of repair you may want to go to a shop, They will charge $300-$400 to replace the IC chips. If you want to try this yourself post back and I can help point you in the right direction. 

Nov 29, 2009 | Toshiba 50H81 50" Rear Projection...

1 Answer

Toshiba Theaterwide HD 50 inch convergence problem


You will have to spend money to repair it. The Convergence IC's need replacing along with checking all the bias resistors for correct value. Do not attempt to align the Blue manually as you will have a headache once the problem is repaired. A normal repair bill is in the area of $250.00 for a service center to repair.

May 28, 2009 | Toshiba Televison & Video

1 Answer

Toshiba 50H81 projection television


Projection sets have two very common problems.

The first common problem is 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

Oct 22, 2008 | Toshiba 50H81 50" Rear Projection...

1 Answer

Toshiba 50H81 Projection TV


youre convergence ICs need to be replaced there are two of them they are both STK392-110 you can get replacement Ics and free instalation instructions at the following link.
http://servicemanuals.vstore.ca/

May 24, 2008 | Toshiba 50H81 50" Rear Projection...

1 Answer

Toshiba 50h81 turn it self off then back on


Did you check the supply fuses to the convergence ICs? Did you check the output resistors
then i would start by replace the convergence ic first.
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 01, 2007 | Toshiba 50H81 50" Rear Projection...

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