Question about Sony KP-46WT510 46" Rear Projection HDTV

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Fixing the convergence ic's

Do I need to call a repairman or can this be done by myself?

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Do it yourself, its an easy repair and if you go to the following link they have the replacement ICs and they include free step by step instructions on how to do the repair, and they offer free on-line instant messaging with one of thier techs will youre doing the repair, They even have service manuals. Heres the link
http://servicemanuals.vstore.ca/ If you dont know your IC numbers just click on the contact link on the lower left side of thier homepage and send them an email with your model number and they will get back to you quickly with the proper ICs that your model uses.

Posted on Apr 08, 2008

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you have a convergence issue. The convergence ics need to be replaced. These are soldered in place and should only be done by a professional repairman

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This is symptom of convergence output chips failure in rear projection tv, replacement of convergence output chips will fix the problem.
Chips/ IC replacement requires soldering work in circuit board, if you are not familiar with electronics stuff fixing an soldering work, call local tv repairman to help you.
Thanks.

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We just recently bought it used and had it moved. Now there is a constant shadow and on words its even worse. I can't get into the program to align it manualy. Can I find a way to do it myself or do I need...


Most likely a repairman - but review the info below to determine

convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

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We have a problem with the ghosts. double people and colors are all over the place. went to convergence and tried to enter to go to auto or even manual but only got lines of different colors can we fix...


Need a repairman - unless you've done soldering and electronic component replacement b4.
convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 24, 2009 | JVC AV-65WP74 Rear Projection Television

1 Answer

I have a 50" projetion toshbia the blue will not line up on the bottem there is also a curve i would like to know if it is worth fixing or can it be fixed and can i do this by myself and what part i could...


Hello: Seems your convergence IC's have failed. These are two large IC on the Main Powersupply board. Have both replaced as a preventive measure.
If you are good at unsoldering and soldering componet IC's then yes you can do this yourself.
The IC are STK-392-110 but use 120's instead.

Oct 20, 2009 | Projection Televisions

4 Answers

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Sounds like a convergence IC problem, you will need to replace them'

Heres a quide
see the before and after pictures to verify your problem
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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1 Answer

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STK392-020 ICs are the convergence ICs for your model, you may also want to check the 3.5 amp pico fuses and the 4.7 ohm 1/2 watt resistors as well.

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Auto convergence


Bull!!!!!!!!! i dont think he knows what hes doing....
you can send the board into ptscorp.com have them check it out, it's the board with big black iC stk392-XXX send that one in, you convergence is done thru the menu system.

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1 Answer

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U say the set is bowed in from top, could this be a foldover? If so then the ic problem may not help. Check to see if any fluid leakage has dropped on your deflection board. If so then you probably will need to clean and replace some capacitors. This is kind of common with the philips projo's. Look around crt for fluid leakage and on board.

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1 Answer

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They are large black colored IC's with the markings of STK392-xxx (xxx could be 110,120,150) There could be open resistors as well and you have to make sure if you do replace the IC's that you apply heat sink compond to the back of them otherwise they will prematurely fail.

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