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Toshiba Projection TV #57H82. TV will not turn on and has a blinking red light. Is it a convergence problem? How do i fix it. Where do I look for troubleshooting on the circut board? My emailis: dawndias@sbcglobal.net Thank-You, Dawn

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  • dawnde Aug 14, 2008

    Thank-You so much. I will check it out.

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Yes conv. prob. needs rebuilding by tech.

Posted on Aug 14, 2008

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I have a Toshiba 57H82 rear projection tv. It has colored wavy lines on the screen and no picture.


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You 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

Apr 19, 2011 | Toshiba 57H82 57" Rear Projection...

1 Answer

Toshiba projection tv model 57H82 color convergence is off. tried the TouchFocus and get and error. tried manually but the red will only move up and down. i need it to move left and right.


OK, the problem is one of the STK392-110 convergence amps has died. It is rare that both die at the same time, so either vertical or horizontal will go out, but not both. Also look for an open fusable resistor near said IC.

May 28, 2010 | Toshiba 57H82 57" Rear Projection...

1 Answer

Picture colors scrambled


Ur convergence it dead,Know how to solders?Buy a convergence kit to repair.These websites have the kit.Tv repair World.com,Tv Repair Kits.

Dec 12, 2009 | Toshiba 57H82 57" Rear Projection...

1 Answer

TV turns off and power light blinks unpluged andd still does it.


Likely to be the STK convergence chips causing a protection circuit to switch the TV off. Have you got any onscreen convergence problems (i.e, colour fringes)?

May 27, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Service Manual for Toshiba 57H82


By the red being "off" I suspect you have a convergence problem and adjusting will bnot likely fix the problem. The convergence amps need to be replaced but if you email me I can send you the servoce manual... Just provide me with enough info in your mail, model number, because I get nearly 3000 emails a day and I won't likely remember what manual you're looking for...
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993
premtech@willapabay.org

Dec 18, 2008 | Toshiba 57H82 57" Rear Projection...

1 Answer

Service manual for Toshiba 57H82


I found an owners manual and other info on your TV but not a maintenance/service manual. I would suggest contacting Customer support, See below: 
 
Customer_Support@tacp.com

http://www.tacp.toshiba.com/customersupport/

Dec 17, 2008 | Toshiba 57H82 57" Rear Projection...

1 Answer

I am working on this tv it has no picture and there is a red light blinking


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
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com

Feb 06, 2008 | Toshiba 57H82 57" Rear Projection...

1 Answer

Toshiba 57H82 Convergence issue


more info here:

http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

May 05, 2007 | Toshiba 65H82 65" Rear Projection...

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