Question about Denon DRA-685 Receiver

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I cant get any sound to come out of the receiver. I checked that the speaker wires are not touching. if it is in protection mode how do I get that turned off

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Good start checking your speaker wires. A better test would be to disconnect them entirely in case there's a short inside the speaker itself. Keep the volume WAY down when you power back up and see if it runs for a while. If it does, then you do have a short somewhere - probably inside speaker. If it trips off, you might want to think in terms of getting the problem fixed rather than defeating the protection circuit.

Posted on Nov 12, 2010


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This generally means you've got a short somewhere, and the received is trying to protect itself.

My suggestion is to disconnect all of your speakers at both ends, and reconnect them.

Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.

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I just hooked up my old Onkyo TX-8511 receiver to my bose speakers, which is also hooked up to a subwolfer. When I turn the volume up the system goes into protect mode. Any solutions.

Just check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Rewire if necessary..
Are you using banana plugs for connecting speaker or just directly. Some times even a little tiny wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.

Otherwise, do your bose speakers play out load on other systems?

Mar 08, 2009 | Onkyo TX-8511 Receiver

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