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Audio Systems/Denon avr-1601 power problem

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Expert: - 9/17/2008


Question
my power keeps shutting off after 3 sec. and goes back to standby. the standby
light then blinks continuously. Is my amp shot?

Answer
Probably not.
Most common causes of this problem (which is activation of the protection circuit) are;

ONE:  Shorted voice coil in one of the speakers.
TWO:  Shorted wiring somewhere, most often a speaker wire strand is touching over on the terminal at the back of the amplifiers.
THREE:  Shorted out power transistor caused by overdriving the speakers and running the amplifier too hot causing it to break down.

So, remove the speaker connections at the back of the avr and see if it still shuts down. If it does, the problem is internal.  If it seems okey with no speakers connected it is a bad speaker or wiring.

Lastly, on occasion, the avr will lock up from software corruption. This can be corrected with a hard reset.  To reset, unplug the power cord for 30 minutes; then try it again.

Hope this helps.  Questions?


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Cleggsan

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Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.

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Have been associated with audio design, standards, testing and component systems for over 40 years.

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Review technical manuscripts for IEEE Spectrum Write occasionally for high-end audio publications

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BSEE/MSCS/MBA

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Past Employee/advisor to several well known audio products manufacturers

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