Question about Toshiba 43H71 43" Rear Projection Television

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Replaced convergence amps, no pic

I replaced both convergence amps on my 43h70 toshiba projection tv. Now I have sound but no picture. What can I do? Thanks

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  • bkdean003 Oct 20, 2008

    I'm new at fixing tv's I have two questions How do you identify a soder splash and what is an open picos. I can fix a soder problem, but will need directions on the picos. Thanks again

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Go over your soldering and make sure none of the pins are connected by a solder splash.and that all plugs are seated and that no picos are open...

Posted on Oct 20, 2008

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My tv has double color and tthe picture flips then turns itself off.


sounds like a short in the convergence circuit based on model number listed here,
4_18_2012_3_01_20_am.jpg

Apr 17, 2012 | Toshiba 43H70 43" Rear Projection...

1 Answer

I HAVE A TOSHIBA 43H70 I BOUGHT IN 2001 AND THE RED AND BLUE ARE OFF ON THE RIGHT SIDE. I HAVE TRIED TO USE THE CONVERGENCE BOARD TO STRAIGHTEN BUT MY RED WILLNOT MOVE TOWARD THE BLUE OR GREEN. ON NUMBER...


This tv the convergence board are dead.Any colors R,G,B mis alignment,don't matches any colors lines.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts are dead,must be replaced to solved convergence problems.The Shop will cost u $300-350 for parts and labors.

Jul 08, 2010 | Toshiba 43H70 43" Rear Projection...

1 Answer

Toshiba 43H70


You need to replace both convergence ICs numbers STK392-110 . You can order replacements at this link I am enclosing. They provide free installation instructions and offer free on line instan messaging while youre doing the repair. I am one of thier Techs. This job takes about 45 minutes from start to finish. heres the link .
http://servicemanuals.vstore.ca/

Apr 13, 2008 | Toshiba 43H70 43" Rear Projection...

1 Answer

Toshiba 43H70 Picture Problem


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 28, 2008 | Toshiba 43H70 43" Rear Projection...

2 Answers

3D image


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

Jan 23, 2008 | Toshiba 43H70 43" Rear Projection...

1 Answer

43h70 theatherview hd ser 53704921


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/

Nov 02, 2007 | Toshiba 43H70 43" Rear Projection...

1 Answer

43H70 has sound by no picture


also check the horizontal o/p transistor for short if ok ,look on the deflection board and see if there are any b+ voltage markings and test with meter for b+.

Sep 12, 2007 | Toshiba 43H70 43" Rear Projection...

1 Answer

43H70 has sound, no picture.


look in by your convergence ic's for load resistors to feed b+ to the ic;s see if any are opened there usually about 2,2 ohms 2watt

Sep 12, 2007 | Toshiba 43H70 43" Rear Projection...

1 Answer

43H70 Blue Convergence out of line and will not line back up


If the blue colors will not line up, and the blue appears to sag inward from one or more sides, then you can bet that one of your convergence IC's has either cracked loose or burned out. The IC should be resoldered or replaced and the convergence realigned by someone experienced with projection TV convergence circuits.

May 21, 2007 | Toshiba 43H70 43" Rear Projection...

1 Answer

Arched picture at bottom seperating the green and red


Your tv has a convergance failure. the convergance ic's need to be replaced. Upgraded part # STK392-150 or STK392-160. Both ic's should be replaced to prevent future failure of other colors.

May 20, 2007 | Toshiba 43H70 43" Rear Projection...

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