Question about Toshiba 50H71 50" Rear Projection Television

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Toshiba 50H71 I have Toshiba 50H71 that red is way off on the bottom of the screen. tried the convergence set up but red would not move. The writing shows twice on the screen as Red Red Can you tell me what would be wrong?????

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You need to replace both the convergence ICs they are STK392-110 you can get new replacement ICs at the following link and they will provide free instalation instructions with pictures so you can do the repair yourself. Heres the link.
http://servicemanuals.vstore.ca/

Posted on May 30, 2008

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Double image in 2 colors one color red ofset above and at about 30 degree angle


The convergence needs to be repaired. The 50H71 convergence kit works in your model as well. You can get the kit at the following link which contains the parts and instructions.
http://servicemanuals.vstore.ca/product_info.php/pName/toshiba-50h71--50h81-convergence-repair-kit/cName/convergence-repair-kits

Jul 11, 2009 | Toshiba 43HX71 43" Rear Projection...

1 Answer

Can not adjust red convergence up or down it will adjust left or right


replace the convergence ICs and resistors. You can get the repair kit for your model at the following link. The kit contains the parts and instructions.
http://servicemanuals.vstore.ca/product_info.php/pName/toshiba-50h71--50h81-convergence-repair-kit/cName/convergence-repair-kits

Jul 10, 2009 | Toshiba 50H81 50" Rear Projection...

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Toshiba TP43H60 Convergence Problem


This may sound odd but try moving the remote further from the set. I have seen similar issue with my 42H81.

Jun 01, 2009 | Toshiba TP43H60 43" Television

1 Answer

My tv is showing a double picture in red its showing double in red


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 projeciton 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

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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 will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Mar 16, 2009 | Toshiba 50H71 50" Rear Projection...

1 Answer

Toshiba v43j22p 42" red shadows and lines over screen


6b5ee7e.png You may have a convergence problem. Here are some of the most common symptoms.

  • 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.
Here is a quick test....

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

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

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


You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick email and they will put one together for you. Their kits includes photo instruction guides, original Sanyo STK chips, convergence resistors, pico fuses, etc.

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

1 Answer

Getting 2 images on top of each other on Toshiba 50H71


How To Enter Service Menu is what you need to know and replace both of your STKs these ic chips control convergence.If they are STK392-110s use STK392-180s better ics.

Dec 18, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

ICS Convergence


Did you also check to make sure both pico fuse are good ?

Jun 09, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

Red picture toshiba model 50h71


try to turn down the screen control and see how the tv reacts.

Apr 10, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

Toshiba 50H71 50 in. Rear... Problem


set most likely has bad convergence ics J.D.W.

Mar 26, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

Toshiba Tv 50H71


This is like so many sets I have seen here. This problem has to do with the shutdown circuit turning the set off to protect it. As has been said many times this is a problem with the HV section which inclused the deflection, convergence, and horizontal output. These sections can not be repaired by someone who does not have electronics experience. I would suggest that you take this telvision to a repair shop in your area.

Sep 10, 2007 | Toshiba 50H71 50" Rear Projection...

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