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

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Sony KP-57WS500 My tv will cut on for around 15 seconds and from what i can tell, the picture looks okay. It will go to a blue screen for about 1 second and cut off. It then gives me a diagnostic code of 8 flashes. Is this a flyback transformer or a bad d board? If so, where can i locate a board to replace. If not, can you help me figure out what else it could be? Thank you.

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  • gregd603 Sep 30, 2008

    Thanks for the information. Is this something that can be done easily by myself or is this a repairman call? Thanks

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8 times flash shows error in Flay back Transformer on D Board.
Fly back Transformer part number is ... 1-453-285-41 FBT ASSY, NX-4006
It is available at Part Store on $112.00
All above info are based on your question and feedback.
Good luck.

Posted on Sep 29, 2008

  • Shahid Electronics
    Shahid Electronics Oct 01, 2008

    It depends if you know good solder skills and identify electronics parts then you can do it yourself.
    TV has always high voltage shock risk so be careful while dealing with TV.



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Sony KP-57WS500 57" Rear Projection Television


If you follow the info from this website, you will be able to fix your TV.
Use at your own risk. Please be very careful when working around devices that generate high voltage is excess of 32.5Kv.

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1 Answer

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Since you get a picture for a while, it is unlikely to be either the flyback or the horizontal output transistor as those would not allow a picture for any amount of time. You would jsut get the 8 flashes. This sounds more like an over voltage problem that could be in the regulator circuit. I'll look up the service manual on this one and get you more details.

Dan

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Sony kp-57ws500 green screen then auto shutoff


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1 Answer

Kp-57ws500


My tv too had a blue screen problem. Then it started to shut down after staying on for less than a minute. I thought that I would with a huge repair bill but I followed the directions at this link: http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html and now my tv works perfectly.

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I got this Sony KP-57WS500 57 in TV for FREE from a guy posting it on craigslist because he saw "BLUE SWIRL LINES" also knows as "Retrace Line" on the screen and he went to several repair people and got high repair costs so he was giving it away for free, but i found a guide that tells you how to adjust the tv to make the blue or green or red lines go away, aparantly the line show up because the voltage on the color ray gun tubes that get out of adjustment. Here is the Link to the REPAIR GUIDE. http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

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