Well, add me to the latest list of "no sound" with the 707. Thankfully, there is some good info here, and I will be contacting Onkyo on Monday morning. I purchased this at the end of March 2010 - which puts me past the 2-year warranty period but within the 45-day grace period I have seen listed here.
Based on the experience of some in my same position, I assume they will ask me to send to a service center to verify the problem, and make an attempt to repair? I really would like a new replacement (709), but I'm not sure of the best way to go about this.
It is very frustrating to have purchased a unit that has had so many units affected by the same problem.
I have left a message for Michael Russo, but wonder if anyone has a tip on how to expedite this process? (I imagine I will have to go through the proper channels, but figured I might get lucky if Mr. Russo has the ability to fast track due to the number of units affected with this same problem)
I supposed I should consider myself lucky to have this problem this close to the warranty expiration - assuming the end result is a working unit or replacement, considering that my Onkyo 707 is in my home theater and doesn't get daily use. It can sit for a week or two without use.
Any feedback would be greatly appreciated - I have read this thread for hours and appreciate all the details. What a great resource.