Denon AVR-391 - AVS Forum
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post #1 of 3 Old 02-16-2013, 04:54 PM - Thread Starter
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I have a 2 year old AVR-391. Over time it has had strange bouts of what I call "alien chatter" where the unit starts giving me a strange alien like sounding audio signal through my speakers when I would power it on or change a channel ocassionally. Now I have a strange high pitch resinance that is coming through the front left surround speaker. I have changed all HDMI cables, speaker wires, swapped rear speakers to the front and no change. Does anyone know what can do for this aside from replacing the entire unit?
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post #2 of 3 Old 02-16-2013, 08:44 PM
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Try resetting the microprocessor (p. 51 OM).

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post #3 of 3 Old 02-18-2013, 08:17 PM - Thread Starter
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Done... actually made it worse as the resonance is constant in most surround modes now and more alien chatter.
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