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

Sony KP57WV700 Convergence problem

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.

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Kris Wingert

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Problem could be low voltage from power supply as well as the amp ic for the convergence board. Need to take voltage readings from the test points on the board and compare them to the readings you should be getting from the service manual.

Posted on Jun 25, 2007

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KP57WV700 - Blue Lines Across The Screen

Problem #1) Convergence

Symptoms:

Screen Looks 3D
Colors wont align
Video may look distorted

Problem #2 CRT Fluid has clouded over. Symtoms

Dull looking video
White looking video
Halos around objects
Red/Orange looking video

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

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Nov 26, 2009 | Sony KP-57WV700 57" Rear Projection HDTV

1 Answer

Picture is distorted from center on my 65

You do have a failure in the convergence circuit of your set. If you are good at soldering you can replace the IC's yourself. They are on the large circuit board on the left side of the set looking from the back, and attached to a large aluminum heat sink. If you don't feel comfortable doing that, I reccomend removing the board and sending it to PTS corp in Indiana. They are pretty reasonable repairing boards, and a lot less than buying a new one.

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1 Answer

Picture is distorted from center on my 65" Sony projection TV.

hi. this will be an easy fix for you if you are a good solder. you will need to replace the convergence chip that is located on the PC board(main). this chip is damaged and it has failed due to this damage that has occurred. click below for your new convergence chip(stk).

CLICK HERE

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it is a convergence problem u may have 2 replace conv ic's and some resistors

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replace STKS on convergence board

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in the menu does it have a convergence menu? try doing that.

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replace the two convergence IC's
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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/

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Blue convergence off = needs convergence IC's replaced =
Would you like step - by - step how to ??????

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Sony KP-57WS500 57 in.

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

Mar 17, 2007 | Sony KP-57WS500 57" Rear Projection...

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Sony KP57WV700 Convergence problem

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Kris Wingert

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Sony KP-57WS500 57 in. Rear Projection...

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Sony KP57WV700 Convergence problem

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Kris Wingert

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KP-57WS500 57" Rear Projection Television

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Open Questions:

donde le conesto el cable tiene 3 puertos , pero uno tiene un agujero

my sony kp-57ws520 standby light flashes 9 times picture will not come on

sony rear projection tv blue screen to black with sound

Two Red Lights Sony KP-57WS500 My Sony KP-57WS500 has two red lights on- Timer/Standby and Stereo on. Tried turning it off for 5 minutes, didn't do anything. The TV obviously has power, but will not turn on. What should I do?

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