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Sony KP-57WS500 Wondering if you know what pqrt is needed to get the front speaker to work. I was told very early on that someone took off the front panel and cross the connections somehow & it blew out the board that works the volume/speaker on the set. I have been able to bypass the volume problem through my stereo receiver.

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The Audio output is on the A board sony part A-1300-550-A if you are looking to replace the board I know where you can get a new replacement A board at the following link, and If you leave them a email and mention that I sent you they may offer you a discount as I do tech support for them. Heres the link leave them a email, see what they say.
http://servicemanuals.vstore.ca/

Posted on Aug 08, 2008

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I have a 57 in.Sony projection tv model # KP-57WS500.I have the circuit board with the convergence ic's on it almost out.The only thing holding me up is the two round red wires one is smaller than the...


The large red wire gets pushed in then turned about 90Degrees and it pops right out of the HV splitter. The smaller red wire gets traced back up front and unplugged from the focus block behind the speaker grille.

Aug 18, 2011 | Sony KP-57WS500 57" Rear Projection...

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Sony kp-57ws500 flashes blue, green, red then turns off


Re-insering the flyback wire is usually very easy. Push in and give a slght turn and check to see if grabbed. It sounds as if there is more issues than flyback wire. TV should turn on without one crt connected

Dec 14, 2009 | Sony KP-57WS500 57" Rear Projection...

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Do you have any speakers or magnets next to the tv? If so, that is not good.
It may be a convergance issue. Check to see if you have any adjustments on the back of your tv to adjust picture. If not, if may be a faulty capacitor that needs to be replaced

Jul 02, 2009 | Sony KP-57WS500 57" Rear Projection...

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Sony 57" projection TV - need replacement screen


The part number for the screen for the KP57WS500 does not match the one for the KDP-57WS550. The inner screen is still available for the KDP using part number 4-095-924-01 for $120.32

Hope this helps,
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Mar 23, 2009 | Sony KP-57WS500 57" Rear Projection...

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JUMPING VERTICAL WHITE LINES


UNPLUGGED TV FOR OVER NIGHT(WAS TOLD 4 HRS) STILL HAD PROBLEM. TOOK ALL CABLES OUT CABLE BOX,DVD,2 VCRS,AMP,SATELLITE, AND FM AMPLIFIER. OPENED BACK VACUUMED ALL BOARDS WITH SOFT BRUSH ,CLEANED LENSES ,MIRROW,FIRST TIME IN 10 YRS. TV LOOKS VERY SHARP!!!!!!!!!!!!!!!!! I THINK IT MAY HAVE BEEN THE FM BOSTER AMP TRANSFORMER GOING BAD CREATING INTERFEARANCE. JUST A GUSS.. COULD NOT HAVE BEEN THE DIRTY LENSES I DONT THINK THAT WOULD HAVE CAUSED INCONSIST CONSENT JUMPING LINES.ENERY THING RECONECTED (NO FM BOSTER AMP) TV LOOKS GREAT. THANKS FOR YOU GUYS GIVING ME THE CONVDENCE TO GET IN THAT PROGECT. KEEPING FINGERS CROSED.......THANKS TV IS A SONY KP-61XBR300 NOT A KP-57WS500 57 IN.

Nov 30, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony kp-57ws500


you need a new green CRT, sony has had some problems with the green and blue crts developing shorts . Let me know if you need further assistance.

May 09, 2008 | Sony KP-57WS500 57" Rear Projection...

2 Answers

Kp-57ws500


Do either the red or the green crts come up at all?? If not the heaters in the blue crt could be bad - loading down the HV and the shutdown circuit turns the set off.. Only repair for that is to replace the blue crt, but I would have it tested first.. In the shop here we use a B&K467 to test for shorts and emission leaks but that's old school.. B&K has since come out with far superior crt tester/rejuvenators..
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Dec 09, 2007 | Sony KP-57WS500 57" Rear Projection...

5 Answers

Sony KP-57WS500 57 in. Rear Projection Television


Hi Guys

Your problem here has to do with the amount of aging that happens to the three colour tubes - red, green and blue.

Blue actually ages slower than red and green. What actually happens is the green tube deteriorates and due to green being the predominant colour for brightness causes the blue tube`s flyback lines to appear - especially when switching between inputs or when the video is blanked.

No replacing the blue tube will not solve your problem as the tube is actually the best one of the three.

As someone mentioned there is a way to adjust this by removing the speaker grill assembly in front of the set. Doing the service mode adjustment with the remote is not the right way to solve the problem - you would be adjusting the colour gain and off-set values and would seriously be compromising the white balance of the set.

On the left hand side behind the speaker cover you will see a black square block with six adjustment points. Look for the one marked SCR BLUE, Switch the set to a unused input so the blue lines become visible. Now adjust the BLUE point counter clockwise until the lines disappear. A small adjustment should do it, Switch back to a picture and make sure the whites are still white.

This should sort your problem. I would however suggest asking a Sony service centre to do this for you. This is a dangerous thing to do as you will be working close to the 35Kv supply the the anodes of the three tubes.

I hope this answers your question.

Goo luck.

Jun 05, 2007 | Sony KP-57WS500 57" Rear Projection...

2 Answers

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

Apr 20, 2007 | Sony KP-57WS500 57" Rear Projection...

1 Answer

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hi, I was reading forums on other sites and someone posted a solution- replace the hv splitter/focus/screen block. I have similar problem with my set and was wondering if you had yours fixed and how. I haven't tried replacing the above parts because still searching for the best solution. so please email me if you have your set fixed and how. thanks Arv

Aug 12, 2006 | Sony KP-57WS500 57" Rear Projection...

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