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Technics piano SX-PX665 burnout

Our Technics SX-PX665 piano has suffered a catastrophic burnout of the output stages - power amps, loudspeakers, and headphone o/p all destroyed themselves - nasty burning smell, and lots of horrible buzzing until it all went dead. We got it fixed (power amp mended, and the speakers replaced) and it all worked for about a week until the same thing happened again. How can we prevent this from happening? Anyone got a fix?

Reply to
colin
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It goes without saying that until someone can properly determine the CAUSE of the catastrophic failures there is no means of preventing a repeat. Simply replacing the obvious burnt out components without determining the root cause of them burning out does not solve the problem.

Reply to
Ross Herbert

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