Question about Toshiba 57H81 57" Rear Projection Television

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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

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Chi Chu

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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.

Posted on Feb 04, 2011

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I'm getting a double image of everything on the screen in a hazy blue colour. I tried configuring the colour within the menu but the cross simply won't line up. touch focus seems to work with the...


Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.

Aug 11, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

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

57H81 rear-projection Toshiba red un-aligned


sounds like to me that you need to replace the convergence IC's.

Apr 06, 2010 | Toshiba TheaterWide 52HM84 52" Rear...

3 Answers

I believe the blue lamp in my 57H81 is going bad.


You need to replace convergence out chips in your Toshiba 57H81 tv by qualified tech because 3-D look picture in rear projection tv shows some thing wrong with convergence output chips.
Your tv model number shows it is rear projection tv that use 3 tubes to make color picture on front screen where as dlp tv use one lamp as back light source to present picture at front screen that is generated in light engine.

Mar 25, 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

Fuzzy/ distorted tv pic


Projection sets have two very common problems.

The first common problem is convergence


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 Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant 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

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Dec 22, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Focus error


You need to replace both convergence ICs part number STK392-110 you can get replacements with free instalation instructions with pics at this link.
http://servicemanuals.vstore.ca/

May 04, 2008 | Toshiba 57H81 57" Rear Projection...

2 Answers

TOUCH FOCUS ERROR on Projection Toshiba TV


My 57H81 won't converge, plus I get the "touch focus error" message. I could get manual convergence of blue, but not red. Plus, during touch focus the red would not move horizontally

Nov 25, 2007 | Toshiba 57H81 57" Rear Projection...

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