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How do you change a convergence board on a toshiba tv and roughly how much will one set me back. also if i was to get a professional to do it what would be a resonable price thanks

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To be honest, this repair is not for a novice as it requires tv problem solving and isolation skills, and soldering skills. I would recommend that you call around to the various tv repair shops and get at least three firm estimates. The repair is in the 125 dollar range.

Posted on Sep 12, 2009

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Posted on Jan 02, 2017

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2 Answers

The tv vision is red, green, yellow, orange, very very blurry, and it is not possible to watch the television. How could I fix it?


Please do us a favor and rate this solution after reading.

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

e87380c.jpg
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

Please do us a favor and rate this solution after reading

May 15, 2011 | Akai PT5492S 54" Rear Projection...

2 Answers

The blue convergence is off at the bottom and doesnt readjust using the option.. can it be fixed?


Please do us a favor and rate this solution after reading.

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

e87380c.jpg
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

Please do us a favor and rate this solution after reading

May 09, 2011 | Toshiba 50A61 50" Rear Projection...

1 Answer

After various boards and repairs, I still have problem with my picture, my TV wont take the convergence adjustments done manually and the auto convergence display an error message. TV man says the...


If you mean it will no longer store the settings, replace the X2402 8 pin EEporm. They are only a few pennies to buy and that will save you a fortune.

Jan 06, 2011 | Toshiba 57H81 57" Rear Projection...

1 Answer

Ihave a toshiba 43 inch hd 2002 rear projection the picture has shiffited to the right can I fix this


This tv have a problems known as a convergence problems,it dead.The tv have colors lines R,G,B mis alignment,have colors shadows picture or 3D picture? The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,require changing to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Oct 16, 2010 | Toshiba 51H84 51" Rear Projection...

2 Answers

So the colours match up on the left hand side of the picture, and progressively fan out towards the right. The convergence had to be lined up manually for to come to this view. As well the picture has...


The "Hyper board" known as the tv convergenece board,it dead.Any colors lines R,G,B mis alingnment anywhere in the picture,have colors shadows pictures or 3D pictures.The tv convergence board have 2 STK convergence ICS and some or all it resistors are dead.These parts,must be changed on the tv convergence board,to solved tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Oct 13, 2010 | Toshiba 50HDX82 50" Rear Projection...

1 Answer

Color shadows


Tv have convergence problems.Ur tv have a "Hyper board" the tv Hyper board convergence are dead on it.The 2 STK convergence ICS and some or all it resistors are dead.Must changes these parts to solved the convergence problems.The shop will cost u $300-350 for parts and labors.

Jun 25, 2010 | Toshiba 50H82 50" Rear Projection...

1 Answer

Toshiba TP48C90 Convergence (replaced ICs, worked for 2 days)


Well, my thought is that there are a ton of knock off generic convergence IC's out there that usually hold up as long as yours did. Professionals like me will only use Sanyo original STK's. The counterfeit STK's out there are everywhere. Do some research on the web to locate Sanyo originals, they are out there.

Jun 11, 2009 | Toshiba Televison & Video

1 Answer

Convergence Issue on Toshiba TN50X81 - Service Manual & Parts Source?


Replace the convergence IC's - P/N STK192-110 with part STK192-150 or 180. Then you can go back in and make the detailed convergence settings and get your picture back in alignement. Also check the flame-resistant resistors around the ICs to make sure that none of them have opened up.

Jan 11, 2009 | Toshiba TN50X81 50" 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...

4 Answers

Convergence problem with Toshiba TV 42H83


Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Aug 04, 2007 | Toshiba 42H83 42" Rear Projection...

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