Sony KP-57WS500 57" Rear Projection Television Logo

Question about Sony KP-57WS500 57" Rear Projection Television

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Sony KP-57WS500 57 in.

Where can i purchase these convergence ic's from? Can solder and repair circuit boards. Is it cheaper to repair or replace complete board? thanks

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Oh no it is less expensive to repair the printed circuit boards. You should buy only the IC,s that sony recomends you to buy. They will cost you more then a replacement IC will but they are not all alike even if they have the same numbers on them. Go to http://www.partstore.com and enter your model number and look for the STK IC. Don't forget to get some heatsink compound to install on the back of the new IC's before you reinstall them.. Remember to always double or triple check your work and make sure you have no solder bridges or shorts on the board. If you need a copy of the service manual, post your e-mail addy and I will send you one thru Pando. Pando is available online at www.pando.com for a free download. Pando lets you send large files via e-mail and the Sony manual is large. Good Luck

Posted on Mar 17, 2007

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I have a Sony KP57WV700. The problem I have just started. On the left hand side there is a blue shadow. I try the Auto Convergence but this did not help. I also try the manual Convergence but it does not let me move the blue cross far enough to merge with the white Cross. I?m thinking it?s the Convergence amp IC. Have you ever seen this problem and know how to fix? I have the service manual. I just need to know what to do.I can solder pretty good. I'm just concern about the high voltage.

Posted on Jun 23, 2007

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Hi,
This problem appears due to convergence output ICs failure located on D board in tv. There are two big black ICs that need to be replaced, soldering work is required.
Let me know are you handy with electronics stuff repair and can replace parts in circuit board to provide you more technical info OR local tv repairman will do this job for you.
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Replace both of your STK ICs STK392-110s use 150s Mats has Them 1-800-628-1118
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Hi,
This is symptom of convergence output chips failure in rear projection tv, replace convergence ouput ICs in tv to get it fixed.
If you are handy with electronics stuff repair and can solder parts in circuit board then check 2 big black ICs mounted with aluminum heat sink on D board of tv, replace them with same numbers and if you feel uncomfortable working with tv circuit boards, local tech will help you.
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Yes, this problem can be fixed if you are handy with electronics stuff repair and can solder parts in circuit board easily with proper tools.
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Let me know exact model number and brand of your TV for further info as question shows its Sony KP-51HW40 tv.

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I have Sony KP-46WT500 Projection TV. For some time it appears convergence went bad. I see multiple images, especially at edges and corners. As many as 3 images Red, Blue and Green. I am an Electronics...

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.
Resolder pins of these 2 ICs and also check any other dry/ cold solder joints in circuit board. I do not think of IC replacement as problem occurs some time.
Let me know if you have additional question.
Thanks.

bc7880f.jpg
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You probably need to replace the convergence IC's and do a good cleaning of the internal mirror and lens. This repair will involve soldering and un-soldering on the printed circuit board. If you have no printed circuit board repair experience, play it safe, and have a pro do this repair for you as that price sounds reasonable for this type of repair. Good luck!
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Kp-57ws500 sony projection tv convergence problem

Sony convergence problems
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/
look for the board that has heavy heat sinks on them the ic will be stk392-XXX
no experience in soldering i would send the board into ptscorp.com and have them repair it.
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Sony KP-57ws500 57in rear projection

yes, you can do that but , boards are expensive ,its better to replace the ic's and may other resistors assosiate with to them. step by step folowing intructions may you can try only if you already have some tools. like soldering iron ,multimeter ,solder, and patience . hope this help you to make your decision, if you need part # let me know
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