Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television

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Sony KP-57WS500 Pictures problem

I had a Sony KP-57WS500 big screen TV. It was working fine for the last 3 years,now suddenly I see a double images.I reset the color and the flash focus that didn't help, so I open the back of the TV and and block one beam lights at a time to see which beam light is not fuction right. The red and blue seems to work fine, but the green beams has an arc (pincusion) on the pictures that why is not line up with the blue and red beams. I try to adjust the green beams, but it only zome in and out. Are there anyway I could adjust the green beams to make the arc line straight with the red and blue beams or maybe there's something else to it? Please help me if anybody have any ideas. Thanks so much!

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Your Convergence Correction Amplifier ICs have gone bad (STK329-110) They must be replaced along with the biasing resistors

www.electronix.com has the parts you will need plus I would suggest that you have a qualified TV repair person do the installation for you.

Make sure the traces on the circuitboard are good and that the solder connections are good.

But the ICs and resistors need to be replaced.

Thank you,
Shuttle83

Posted on Oct 26, 2007

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Posted on Jan 02, 2017

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1 Answer

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if you have a big sub right against it it needs to be moved away as the magnets can affect the big screen picture.

Mar 30, 2012 | Sony KP-57WS500 57" Rear Projection...

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Have Sony KP-57ws500 rear projection i had the bulbs replaced 3 years ago now itseams as if everyting is out of focus.images outlined in green and red.


Hi,
It sounds TV got convergence out ICs failure problem and causing 3D image or outlined picture.
There are 2 convergence out ICs mounted on D board in TV that need to be replaced.
Let me know if you need part number of ICs if you want to replace by yourself or call local Tv tech to fix it.
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Jul 02, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

2 separate colors on screen


sounds like your convergence IC's have finally gone bad.. they seem to last 5 years on average.. have a look here: http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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Sounds like a conergence circuit failure, probably a couple of AMPs and a few discreet components. Probably 250-300 repair

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1 Answer

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the unit needs the convergence ic's replaced and probably a couple of safety resistors.average repaire are about 300 from a tv shop

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