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

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Sony tv Okay so the convergence goes out on my sony kp57ws500. I opt to replace the IC's. Dosen't work. I then decide to buy the whole D boars rebuilt from sony....looks the same as before. I have checked pico fuses on all boards and done visual inspection of caps for blow ups and come up with nothing. Any ideas before I call a service pro ?

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Don't waste any more time or money on it, I replaced pico fuses and ic's and still it did not work.
Some people have "wonderfull" stories here ,but I begining to wonder.
I desided not to spend more than $50.00 buks on it.I know it hurts to get rid of at least a $2,000 tv but mine gave me a lot of fun hours and I don't reget any of it.
This time around you have the internet to gide you on buying a better tv ,I just did!

Posted on Oct 23, 2008

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Convergence problem


Usually what happens is that the convergence IC goes bad or the fuse going to the convergence ic goes bad. Pico fuses they are called sometimes open up. You may want to open it up and pull the board out and check the solder connections on the convergence IC. Sometimes these get fractured or cold soldered and aren't making connection to the PC board.
Let me know if you feel comfortable with pulling TV chassis out or pulling the board that has the convergence IC on it out. Then you can resolder convergence IC OR replace it.First thing i would do is check to make sure there is between 22vdc and 25vdc on the fuse or the convergence IC. Let me know if this helps out any.... Sincerely HDTV GURU JAY

Mar 17, 2011 | Sony KP-57WS510 57" Rear Projection HDTV

2 Answers

Need part # KP-53XBR45, convergance IC


The convergence ICs are STK392-010, the locations are IC1601 and IC1602.

Apr 18, 2010 | Sony KP-53XBR45 53" Rear Projection...

1 Answer

Green lines developing about every 6 inches going across horizontally with slight arch on end sony projection tv KP57WS500


This is convergence out ICs failure and will be replaced for correct picture in TV.
Let me know if you can solder parts in circuit board of TV with necessary tools to provide you IC number and store address, or call local TV tech for fix if you are not comfortable with TV repair.
Thanks.


Oct 31, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

My set is 10 yrs old. In the upper left and lower


Try adjusting the convergence. If it won't move see below- red IC in particular
This sounds like 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 18, 2009 | Sony KP-43HT20 43" Rear Projection...

1 Answer

Vertical color seperation on a Sony KP57WS500 TV


YOU HAVE A CONVERGENCE PROBLEM. THE CONVERGENCE IC'S NEED TO BE REPLACED
EST $400.00

Dec 26, 2008 | Sony KP-57WS500 57" Rear Projection...

2 Answers

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.

Jan 22, 2008 | Sony KP-41T65 41" Rear Projection...

1 Answer

Sony Kp 51ws510


Sounds like convergance ic problem to me
· http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/

Nov 21, 2007 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Convergence problem


you will need to replace the stk ic's they are mounted to 2 large heat sinks in side the tv. the ic numbers are on the chips themselves. i do believe it is stk392-510 for sony. once you have the number you can buy these anywhere online. just put new ones in and should be good to go. if this doesnt work then there are a few resistors and fuses by the ic's that sometimes fail.

Oct 11, 2007 | Sony KP-46WT510 46" Rear Projection HDTV

6 Answers

HC-P4752W Blue Convergence??


You can replace the whole board, or opt to replace just the 2 IC's and a resistor or 2 that has probably failed. Lift the chassis & inspect the pins of the 2 IC convergence chips for hair line cracks around them. Inspect the small resistors out in front of the IC's for discoloring or burnt look compared to other similar resistors. The convergence board will cost much more than having the above repaced. Chips about fifeteen a piece, resisters .50 cents each plus shipping. Convergence board $100 plus.

Jul 22, 2007 | Samsung HC-P4752W 47" Rear Projection...

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