Another SR706 fixed.
I spent some time on the phone with Onkyo. I tried fishing for the "one time complementary repair" mentioned earlier in the thread. Unfortunately for me, the phone rep I got was on a hellbent mission to sell me a new receiver through the buyback program. ...Sigh.
He really was a smart guy, he kept trying to impress me with how much he knew about the HDMI board. So I figured I might as well try to talk to the guy about it, maybe he knew about the capacitor issue being on the inside, and would offer some helpful tips. He got a little bit hostile and wanted to know how I knew about the caps going out. I told him about this thread.
"Oh yeah, the AVS forum... well they're all DIY'rs, none of them are 'professionals', so you really can't trust anything you read there." So I knew this guy wasn't going to help me. I asked if I could buy a daughter-board directly from Onkyo, he said I had to be a registered dealer. So I asked him for a nearby reference that could order one. The closest registered shop was in Atlanta, so I called them. Their tech was extremely helpful and forbearing with my questions. But the hard line was a bare minimum of $160 + shipping 300 miles each way to get the board installed.
What have I got to lose at this point. I bought 12 caps from Parts Express for $2.28: Part No. 020-1704
I replaced all twelve tonight. Fixed.
A thank you to CZ_the_day. If you have a paypal, I'd love to toss you some beer money. You saved me at least $157.72.
A big thank you to the guys who had the wits to apply the 606 fix to the 706 and posting about it.