Question about Toshiba 65H82 65" Rear Projection Television

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Slight convergence problem after changing convergence circuits

I have just changed the convergence circuits on my Toshiba 65H82 projection TV, and it fixed 98% of the problem. The remaining problem is when switched on, the screen will flicker and display wavy lines that seem to go away as it warms up. The flickering stops within the first minute or so, but the wavy lines take up to 7-8 minutes to fully go away. I am left with a very slight red/ green lines out of place on the lower right hand side of the screen. Is this caused by bad convergence resistors or pico fuses?

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  • Sonny Berry
    Sonny Berry May 11, 2010

    did you check the 1.8 ohm resistors? there are six of them

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My experience has been that the resistors have fallen out of range. These aren't expensive and neither are the caps that surround this area. If you're pulling the board out to change the resistors, might as well change the caps, too. If you're strapped for cash, but have a multi-meter, you can test the caps and the resistors after they've been taken out of circuit to save a little green. Let me know if you need any help testing them; I'd be glad to help.

Posted on May 22, 2009

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1 Answer

Toshiba projection tv no picture


You will need convergence work to this unit. Not cheap.(Not recommended for DIY unless already experienced in this type work). Might contact a local servicer experienced with Toshiba & see if they can give you a quote over the phone. Be sure you are sitting.
This is probably a good time to consider entering the 21st century & look at LCD or LED flat screens.

Jul 24, 2014 | Toshiba 65H82 65" Rear Projection...

1 Answer

Problem with picture


Bad convergence ic's. STK 392-120, best replacement. Or check for bad solder connections in convergence circuit.

Nov 25, 2011 | Toshiba 65H82 65" Rear Projection...

1 Answer

Re: Toshiba 65 in Cinema Series - 12 years old. Color Separation. Green bow at top center of screen, red and blue double images tilting upwards toward sides. Sometimes clears unassisted after set has...


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.

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.


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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.

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TV set after fluid change

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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

Jan 20, 2011 | Toshiba 65H82 65" Rear Projection...

1 Answer

My picture is jittery and goes all over can make out and picture


Ur tv have a convergence problems,it dead.U know how to solders?Must replaced 2 STK convergence ICS,and some or all it resistors.Tries Websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.

Apr 01, 2010 | Toshiba 65H82 65" Rear Projection...

1 Answer

Toshiba 65H82 that is showing red and green like an old 3-D movie. Was told it is probably a convergence circuit by tv repairman over the phone. Where can I get one & is this common?


Try adjusting the convergence from the second page of the menu. If this doesn't work then you may have to fix it.
If you are handy and know how to solder it isn't very difficult.
The circuit in question is an integrated circuit. It is a large IC mounted to a heat sink on the left hand board when viewed from the back.
Newark electronics has very good prices for the Sanyo STK's. I wouldn't recommend buying the cheapest one you can find because it will be a copy and go bad again. If you have STK392-110 or 120 or 150 then the STK392-180 can be used. It has a higher rating and only costs $10 at newark.com.
You should replace both STK's and check the resistors near the heat sink and the fuses on the power board. Also check all of the solder joints.
Newark electronics has very good prices for the Sanyo STK's. I wouldn't recommend buying the cheapest one you can find because it will be a copy and go bad again. The STK392-180 can be used. It has a higher rating and only costs $10 at newark.com.
You should replace both STK's and check the resistors near the heat sink and the fuses on the power board. Also check all of the solder joints.

Jan 19, 2010 | Toshiba 65H82 65" Rear Projection...

1 Answer

Toshiba 65H82 Projection TV; location of Convergence resistors


The caps will bleed off within a few minutes of being unplugged. I don't know which caps and resistors he was telling you about but here goes.
Typically along with the convergence IC's the output resistors under the heat sink are at least checked with a multimeter. They are large resistors and should match their color code markings. The caps are probably the caps in the hyper module (hyper board)
Here is a very good tutorial to do this repair or get it done: http://www.dshosu.com/how-to-fix-toshiba-rear-projection-hdtv-wavy-lines/

May 25, 2009 | Toshiba 65H82 65" 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...

2 Answers

Wavy picture


this is caused by a bad convergence module, and there are probably some dried out electrolytic caps in the circuit as well. i have one in the shop right now that came in with the same problem. if you have it serviced, make sure they replace all of the convergence modules (there are usually 2, but sometimes 3 of them), because if one went bad the other(s) is likely to go out soon as well.

Jun 28, 2006 | Toshiba 65H82 65" Rear Projection...

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