Question about Toshiba 57H81 57" Rear Projection Television

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Convergence ICs - Toshiba 57h81

Thanks for the info. I have a Toshiba 57h81 and I'm experiencing the same problems. Do I need to replace both ICs? And just to confirm, the stock number is STK392-110? Will I need any special tools, soldering skills or anything? I went to the link in your post and was able to find the part, but could not locate the free installation manual. Can you help me out? Thanks in advance!

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  • huntleyjr01 Jul 16, 2008

    Power light comes on. There is no sound or picture

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They send the instalation instructions with the ICs , which tells you what tools you would need and exactly how to replace them. yes both Ics should be repalced together as they work together to control the 3rd color. yes STK392-110 are the correct ICs for your model.

Posted on Jun 20, 2008

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I have convergence on all colors except blue on my Toshiba 57H81, Which parts do i need and where is the best place to order them from? Thank you in advance, Bob


U have all the tools like a soldering iron,a desoldering pump or a roll of desoldering braid and pretty good at doing soldering work,because were talking about ICS here?Must take out the covergence board to replaced 2 convergence ICS and some or all of it resitors.The websites like Tvrepairworld.com,Tvrepairkits.com have a convergence kits,just look for ur DLP tvs make and models for ur convergence kits.Or the shop,will cost u like $300-350 for parts and labors.

Feb 04, 2011 | Toshiba 57H81 57" Rear Projection...

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I have a Toshiba 57H81 57 in. Rear Projection Television. The picture started having "squiggles" in it, which at first went away after the T.V. "warmed up". Now they appear to be...


Ur tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 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 replace on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Jan 22, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

My toshiba 57h81 tv is showing up double vision, looking like the red is off and not aligned. Also the touch focus in the menu says error whenever i try to touch focus it.


This tv have a problems known as a Convergence problems,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.This parts must be replaced to solved the convergence board problems.The shop will cost u $300-350 for parts and labors.

Jun 17, 2010 | Toshiba 57H81 57" Rear Projection...

1 Answer

Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

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

1 Answer

Red color convergence on Toshiba 57H81


Often convergence issues do not require the entire board to be replaced. You can resolve it by replacing the convergence ICs. The part in question is STK392-110. You will need two of them and they cost around 10$ each. But replacing them is a pretty complicated procedure and I would not suggest it to someone without prior experience. A service manual should get you started in the right direction if you are planning to do this yourself.
https://www.completeservicemanuals.com/toshiba/crt-projection-television/57h81-service-manual/prod_1128.html

PS
: Disconnect from the power supply before you start the repair. Also read the legend, the hv circuits are denoted by a special symbol, so you will know what you shouldn't touch.

You may also need to replace the nearby resistors that may have popped the IC in the first place. Read the service manual for further details.

Good luck,
Sai.

Apr 01, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba Rear Projection Tv 40WH08B


If the convergence on one or more color does not align using the convergence setup procedure, that means that one or more convergence ICs must be replaced, that is the reason why you get bad picture.

That means that the convergence ICs are bad and must be replaced, the job is about $200/$300.

Here there is an example of the repair needed: Fixing Convergence problems in RPTV's

Mar 10, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba rear projection 57H81 Model


most possible cause is failed convergence ICs. Unplug the three wires for the convergence yokes then try powering up the set if it powers up the Convergence Ics need replacement

Mar 04, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57H81, Looks 3D, with touch focus error. how do I fix this?


you need a convergence repair kit. The 50H71 convergence repair kit available at the following link also applies to the H81 models it contains both ICs and the feed resistors. They also send instructions on how to do the repair. Heres the link.
http://servicemanuals.vstore.ca/

Nov 29, 2008 | Toshiba 57H81 57" Rear Projection...

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Convergence problem with a Toshiba 57h81


you need to replace both convergence ICs. they are both STK392-110 ICs you can get replacements at the following link with free instalation instructions with pictures so you can do the repair yourself. here is the link.
http://servicemanuals.vstore.ca/

Jul 26, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Toshiba 57h81 convergence bad


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

Jul 01, 2008 | Projection Televisions

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