Question about Toshiba 55H70 55" Rear Projection Television

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My 55H70 is jumping around and very colorful and then just turns off. Is this a Convergence issue?? How do I fix it??

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Jose Garcia

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Yes , stk392-110

Posted on May 08, 2009

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The color is messed up. the color is all different colors like red,green and blue.


Your convergence is out of whack.

This can be caused by a failed convergence IC - or can be adjusted using the Convergence settings in the main menu.

May 15, 2011 | Toshiba 55H70 55" Rear Projection...

1 Answer

The picture on my Toshiba 55H70 is distorted. Most of the screen is fine, but the bottom left looks bent with all three colors misaligned. I tried adjusting the convergence some but it did nothing for that...


hello am rico, you need to replace your convergence ics (stk392 or 393 something esle). check for caps,fuses, resistors, cold solder in the boards. if you need more help, feel free to call at anytime. 602-810-7149.

Jan 07, 2011 | Toshiba 55H70 55" Rear Projection...

1 Answer

I have a Toshiba 55H70 TV. Lately it has been having issues with the screen. The picture will go out and theres different color lines, if we turn it off or unplug it and plug it back in it comes back. we...


Sounds like possibly cold solder connections on the convergence IC's I believe there are 3 in your tv. They are easy to spot big black IC's that have STK392-xxx stamped on them.. If your lucky you can solder the connections and be back in business. Sometimes because of the bad connections left unrepaired it will cause the ic's to fail then they would need replacing. If you have soldering skills you might try yourself. Be careful and make sure its unplugged. If you arent skilled at soldering I wouldnt recommend even trying it.

Oct 17, 2010 | Toshiba 55H70 55" Rear Projection...

1 Answer

Red Color Convergence is off


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 Sony2_bing.gif,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer2_bing.gif, 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 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 here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 12, 2010 | Toshiba 55H70 55" Rear Projection...

1 Answer

Color convergence issue.


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

Mar 27, 2010 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55H70 COLOR PROBLEMS


turn your red screen voltage down till you get grey, your convergence out puts will need replacing
also the limiting resistors usually a low resistance, cheers parts from global look for stk -*.*

Oct 08, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Pic distorted slightly on left side. news (crawl) on bottom of screen angles down on left side, top of pic seems to angle up also. very minor problem but annoying anyway! pic clarity & color excellent.


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Jan 29, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Projection TV convergence problem


Get it fixed, because this is a simple repair. One of your convergence IC's has burned out and needs to be replaced. A good tech can fix the set in-house in about an hour and a half, and I charge $150 when I fix a set like that but shops in your area will vary so ask around. If you have a satellite receiver or a cable box, the changeover in 2009 should not affect you.

Sep 04, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55H70 had convergence problem fixed that now vol.went out


check to make sure that the tv switch on the back panel for surround sound is not in the on position check the customer menu to make sure that the speakers are turned on

Sep 28, 2006 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55H70 convergence problem fixed but now vol.is gone


I just posted a question about a convergence problem( juice07 ). I am unable to adjust the red color in the convergence adjustment mode. Did you have a similar problem ?? Please help.

Sep 28, 2006 | Toshiba TP50H50 50" Rear Projection...

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