Friend of mine has a Denon 1601, but has lost the manual to it. The problem is, when he turns it on, the thing pops to life for just a second then immediately shuts down. It sounded to me like it might be that whole reset-the-microprocessor thing. I have the 4800, and for resetting it tells me to hit buttons his doesn't come close to having! So here's the question: does it sound like resetting is the way to go here, and if so, can anyone tell me how to do it? I posted this at AR as well, so I'm hoping between the two I can snag somebody who can give me a hand! Thanks in advance!