UPDATE!!!!!!
what do you guys think?
Continuing my story...
I ended up bringing in my Denon receiver for servicing to American (the place I bought it). I thought they serviced in-house, but actually they have a proprietary repair shop somewhere in Wisconsin they ship to that handles all repairs. Regardless, I was pleased with their response time as I received a call from a technician at their Wisconsin servicing center the day after I dropped it off at American in Johnston. The bad news. He indicated my BSP board was bad and would need to be replaced at a cost around $300.
This is a 3 1/2 year old unit, so I'm not pleased with this news especially given the fact I believe I can buy a comparable new Denon for about $500.
I had the technician look up my servicing record because I'd had a problem with my original unit shortly after buying it. They replaced it due to being under warranty. He indicated the original unit was replaced due to the same issue -- bad/failing BSP board.
My conclusion (and I'd be curious to hear if anyone has other thoughts). The outlet in the main living area that the vacuum was plugged into must share the same circuit (not sure if proper term) as the outlet I have my equipment plugged into in the backroom. For some reason, this must have caused the problem and I'm guessing, was the same thing that caused my original unit to go bad 3 1/2 years ago. That said, I'm a bit surprised the surge protector did not prevent any problems and/or the Denon's own internal protection devices (assuming there is such a thing) did protect it from damage.
At the end of the day, I'm probably going to buy a new A/V receiver and also will need to add a dedicated outlet for my stereo equipment to prevent this in the future. Other thoughts?
