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''Protect'' mode on Denon AVR 800

What to do when this happens?

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  • lswittenberg Jul 23, 2009

    Will try and leave a message back with results..

    Tx!

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Protect mode appears when there is a problem with the amp it goes into this mode to avoid any further damage to the system. to begin with disconnect all the speakers and see if it continues or else it could be that moisture in the circuits have caused it to go in protect mode or else ther is some shorting in the circuitry. It wud be wise to have it serviced by an authorised personnel

Posted on Jul 23, 2009

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tech48
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SOURCE: Receiver goes into protect mode when hitting certain volume level

There is a problem in one of the output channels of the amplifier. That is the only reason it will do this. I work at an authorized Denon service center and have seen this problem several times, but it has never been the same thing that causes it. It has always resulted in extensive troubleshooting to find the problem. One time it was a capacitor in the pre-driver circuit for one of the channels, another time it was a transistor in the same type of circuit. I can not remember all the other causes. But without the proper tools and the knowledge of how to troubleshoot an amplifier circuit you will never figure it out.

Since this is an older model, more than 3 years old, it is no longer under warranty. They get a 2 year warranty from Denon. You can take it to any service center that works on stereo equipment and they should be able to fix it for a reasonable fee. Probable around $125 to $150 depending on their rates. It may seem like a lot, but it is much cheaper than buying a new one.

Since this is really the only option for you, unless you have the tools and knowledge, a FixYa! would be much appreciated and appropriate.

If you would like to troubleshoot it yourself, let me know, I have the service manual in PDF and can email it to you if you like and help you with troubleshooting it. But be aware, it is not an easy job.

Dave

Posted on Nov 10, 2008

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