Posted on Jun 15, 2008

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Power On Displays Flashing "Protected"

I have a Sony STR-DE535 amplifier and sound system. Whenever it is powered on, in the display window is the legend "Protected." I turned all the speakers off position and when I powered on again, had still the same problem. The same "Protected" alert displays whatever program I request from the amplifier, be it radio stations or TV or whatever, and the system does not function. No sound at all, not even static. I checked the troubleshooting guide in the back of the Users Manual; no help. Any help in finding a solution to this "Protected" problem will be sincerely appreciated.

1 Answer

Francisco Mauricio G

Sony Master 1,551 Answers
Posted on Sep 13, 2008

Francisco Mauricio G

Sony Master

Joined: Feb 16, 2008

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The audio amplifier IC´s are on short circuit.

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