Sony KP-46WT510 46" Rear Projection HDTV Logo
Posted on May 23, 2008
Answered by a Fixya Expert

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Sony KP-46WT510 46 in. ic problem

Hi there,

The following are the issues I'm currently experiencing with my TV.

There is a concave image(middle part of the picture bending in and the outer ends bending out)
The red-blue-green colors were separated so it looked like 3 images at once.

I understand that you've recomanded replacing both the convergence ic when experiencing this problem and refer a webpage to purchase the parts from. Do you think this will solve the blury image and is it something that I could do myself or should I simply take it to a tech and have it repaired there.

1 Answer

Sonny Berry

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  • Sony Master 8,617 Answers
  • Posted on May 23, 2008
Sonny Berry
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Joined: Jan 03, 2008
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If you can solder it should be an easy fix for about 50.00 You need two Convergence ICs STK392-560 the link I am posting has replacement ICs and provide free tech support by instant messageing as well as instalation instructions with pics on how to change the ICs. A repair shop will charge between 4 and 6 hundred to do the job which is about an hour. I would also suggest getting about 6 of the 4.7ohm 1/2watt resistors also as sony will sometimes blow a couple with the ICs but the repair tech will help you find the open one if there are any. Heres the link to the site.
http://servicemanuals.vstore.ca/

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Image curve

Hi,
Image curve, it seems tv got problem with convergence output ICs failure.
Do you get off color picture or like 3 pictures in tv screen?
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You have a convergence malfunction.......the convergence ic's and the protecter picp fuses in the power are will need to be replaced by a qualified perso. A reputable shop may charge around $300 to repair. If you have technical ability,I can guide you further to repair yourself as well
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Hi,
It would be great to assist you in Sony convergence issue.
As you said, for some time TV shows bad convergence in picture that shows its matter of lose/ dry solder joints in D board, specially on convergence out ICs pins that need to be re-solder.
There are 2 big black ICs mounted on aluminum heat sink on D Board of TV, below image shows D Board location in TV.
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bc7880f.jpg
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Lots of Blue shadows off to side. concaved picture almost

HI, this is a failed convergence chip that is located on the convergence board. it will need to be replace ASAP. you can just replace the chip or , you can order a new board.

Replacing the chip can be a rough job if you don't have tech experience. if you are a fluid tech and you can solder and know your way around a circuit board, just replacing the chip will cost less. if you are not an experienced TV tech, i recommend a service call to the nearest TV tech to replace the convergence board.
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Take a look at my post on Convergence IC replacement..Thank you GURU JAY
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Replace both IC's, reassemble...test........................
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