Question about Sony KP-51WS500 51" Rear Projection Television

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Bow in the green tube, what is a reasonable price for repair

I have a Sony KP-51WS500. Recently the green occasionally projects is a 'bow' or horizontal hourglass. The bottom curves up and the top curves down. It seems to be doing it more and more. Usually turning it off and on will solve the issue. Now it seems to be stuck. I don't beleive there is any adjustment for this. From reading other posts, it sounds like it is a resistor or chip on a board that needs to be replaced or re-soldered. What causes this, does the soldering fail from temperature fatigue? I have opened it up and have tried some adjustements, without zapping my self, but I don't have a clue what I'm doing. I dont think I made things any worse. What is a fair price for repairs of this sort? Thanks, Ken Oh, my good friend has the same TV in a 57". He has the same problem, but it seems like it is more than just the green tube. Is this just a cronic problem with these Sony TVs?

Posted by Anonymous on

  • Anonymous Sep 15, 2006

    techman,

    thanks for the information. It ended up the best I could find was $520.00 which included them coming to the house for a quote, picking it up and returning it. It is alot more than I wanted to do, but I was without options.

    Now with that said, they returned the TV. Things were better, but they obviously did not take their time adjusting the image. The red is out of alignment and there is still a very slight bow. Which is quite noticable with a ticker tape bar at the bottom of the picture. Also the self-diagnostic function still indicates "Vertical deflection stopped".


    They are coming back to adjust the TV, do they have to reset the self-diagnostic, or couls something still be faulty?

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Your problem as well as your freinds tv is nota cronic problem with only Sony TVs but with every rear tube projection set ever made. The convergence ICs mostly go bad and yes, sometimes, a cold solder connection on the main convergence board can cause these problems. The IC's should be replaced as a pair as that takes care of problems your going to have down the road with the other colors going funky. A normal repair , depending on the area your in should run about 250.00 up to, but no more then 400 bucks. Good Luck

Posted on Aug 14, 2006

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