Question about Toshiba 55H70 55" Rear Projection Television

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Projection TV convergence problem

The convergence is off on our Toshiba 55H70 Projection TV. The red + will move to form a white + Is there a way to get this fixed or should we just buy a new TV we will need to upgrade before the big change in 2009. However we are a little strapped this month and would like to just get it fixed.

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  • 398 Answers

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.

Posted on Sep 04, 2007

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Posted on Jan 02, 2017

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1 Answer

I can't get the red color to move and converge with the blue and green ... HELP?


You have a bad resistor 1.8 ohms it controls the red convergence
you have 3 of them all are 1.8 ohms 1 watt they are located in front of the Convergence ICs STK392-110

Aug 13, 2010 | Toshiba 55H70 55" Rear Projection...

1 Answer

Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?


Yes,U have some basic machanicals skills?The Toshiba Tv convergence board,it call a Hyper board.Try website Ebay.com to buy a refurbish board.This board no longer produced by Toshiba,if can't find it.The Convergence 2 STK ICS,and some or all it resistors,must replaced manually.Must have tools,and knowing how to do basic soldering,to do this.

Apr 06, 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

Parts for a Toshiba 55H70


I had the same problem. Different model same chassis. 1 convergence IC overheating was caused by red yoke. NLA at Toshiba. Fortunate customer had an extended warranty and got a new tv.

Jun 23, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55h70


sounds like the convergence ICs are defective and need to be replaced, they are STK392-110 you can get replacement ICs at the following link that include free instalation instructions.
http://servicemanuals.vstore.ca/

Jun 06, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Convergence fuse Toshiba rear projection tv


Wire jumpers need re-soldering....Locations 008,010,017 etc
on inside edge of signal board near convergence IC's.....research
my Toshiba " H " Model rear projection " blows fuses" solutions.
...................................T.

Jan 27, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Can not align color dirvertions on test screen


I think you need a remote to use the convergence features of this set. Does it have an auto convergence feature? And does it work?

Dec 31, 2007 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55" 55H70 model. Turns OFF, but won't turn ON until I unplug it from the wall first.


sounds like loose connections on the convergance amps ic's
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Aug 22, 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.

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