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Sony KP51WS520- stand by light flashes 9 times and won't turn on.

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  • Brian May 04, 2010

    Hi I am a process engineer in the circuit card industry, i build circuit boards for a living. Soldering is old hat, however de-bugging without a schematic is not a good thing to do. I appreciate your insight on this issue. Do you have a mfgr p/n for those components?

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Greetings, This is direct from the Sony Service manual

9 times, Diagnosis: Audio error. Possible causes: +- 19V line is shorted. (A, B boards), IC708 is faulty. (A board), PS701 or PS702 is opened. (A board). Symptoms of the problem: No sound or picture. Fails to start

Because of the intracies and risks of electrocution and radiation in this repair I suggest you arrange for a tech, rather than to attempt it yourself. Often changing the faulty component or the actual boards, fails to resolve the problem totally as it may have become damaged deeper into the circuit.

Thanks for using FIXYA


Posted on May 04, 2010

  • dennis bullard May 04, 2010

    We don't have one, but it will be available from Sony.com at a price. Or one of the workshop manual sites. try typeing in the model number and circuit diagram to your browser. But don;t hold your breath, Sony has been tightening up on pirate diagrams of late.

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