Question about Sony STR-DE585 Receiver

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"Protect" feature increasingly activated.

My setup has been working fine for the past few years. About 6 months ago, the "protect" feature activated itself (shut off all audio coming from the reciever) at a particularly dynamic part of a DVD we were watching (Lord of the Rings, I think). I shut off the unit and turned it back on, and finished watching the movie wthout any problem. Now, the "protect" feature is becoming increasingly activated, and at levels that are less and less dynamic, to the point where I cannot truly take advantage of DVD audio tracks. The manual only briefly mentions the "protect" feature, and then only in reference to troubleshooting no speaker output when initially setting up the reciever. I have checked all connections and everything is good, plus nothing has changed (no components added or removed) since the problem started. Playing music does not seem to cause the same problem.

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  • CTjaycee Nov 28, 2008

    I started having the same problem and it is a royal pain.

  • paulstead_61 Apr 13, 2009

    I have the same problem. Playing guitar hero through xbox. Smelt burning then Protect comes up. Does anyone know the fix?

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You may have an output transistor gone bad and it is trying to run on one good transistor since they commonly are used in pairs (one positive and one negative). Time for a trip to the shop. Good luck.

Posted on Jan 23, 2007

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Posted on Jan 02, 2017

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