Question about Toshiba 42HDX82 42" Rear Projection HDTV-Ready Television

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Blue will not Converge

Yesterday the convergance went out can't get the blue to reallign. I have tried the auto converge and get the green and red lines nice and straight... blue line has a bow or an arc to it. Final picture gives you a nice 3d movie effect with the blue being off by 2-3" to the right with a slight arc to it. Any guidance would be greatly appreciated.

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Re: Blue will not Converge

This is the typical convergence problem. There are two IC's that need to be replaced. They are soldered into the printed circuit board. If you have no soldering skills, and are in the US, you can take the model number and go to, as they will rebuild or sell you a refurbished board . There is a phone number listed at the site if you need help getting the pricing. Good Luck

Posted on Mar 29, 2007

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Re: Blue will not Converge

Are the convergence chips the same model? Can I just buy the STK392-110's and solder them in? Is that all I need to do?

Posted on May 04, 2010

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Philips 43pp92 blue will not converge

STK392-120 is convergence correction amplifier.. the problem is the convergence circuit... try to check the small Valuie electrolytic capacitors or High value resistors! maybe the said parts is in change Value... used a ohmmeter tester to find the chenge value parts!.

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This happens when convergence out ICs become defective.
Replace convergence ICs on D board to get correct picture. This qualified TV tech job.

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need to replace both stk392-110 , one is for vertical and the other for horizontal , if one is bad the otrere one would go bad anytime

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bad convergence would cause show to look as if it was supposed to be a 3-d movie, if a bulb was going out then people would look purple blue -green,or some other off color, so likely the green bulb is going out from the color of the people you described.

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Convergence problem, blue ghosts

Projection TV sets have several common problems listed below.

Problem #1) Convergence


  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
Problem #2 CRT Fluid has clouded over.


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You can see more examples and find a fix here...


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1 Answer

JVC I'Art AV-56wp74

A repair facility will charge 400 to 600.00 for the repair. Or you can repair it yourself if you can solder. As both convergence ICs need to be replaced. They are STK392-110 you can get replacement ICs at the following link with free instalation instructions with pictures so you can do the repair yourself. Heres the link.

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2 Answers

Converging green?

jaymz, you can`t move the green, the green tube is always mounted in the middle and is not adjustable from the convergence menu. red & blue should be converged one at a time on top of the green, once you have accomplished this the crosshatch grid will be white and that means your done :)

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Panasonic blue convergence problem

Yea, you have to have the two convergence Amp IC's replaced. Should run you about 300 bucks or so. Good Luck

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Replaced bulb and converge problems

After replacing a Picture tube convergence/geometry allignments can be quite extensive and if they're not fairly precise the sensors for the auto conv. can not be calibrated therefore your auto conv. not working as you described. The key is usually the geometry start with the green lines and get them as square as you can then align the red/blue. Since the auto is not going to blue that often means the blue is to far out and the sensors are not picking it up.

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