Yep, the channel boards. I ordered some replacements (slightly higher uF, but same dimensions) and I'll change them when they come in, 5 minute job to do those.
Here are the caps installed before I started closing things up. Nothing really exciting... but perhaps all these photos will help someone down the road.
As expected, the closing up the case work was the biggest part of the job. I'm glad I remove it, it made the solder work easy and I got a good look at everything to make sure it's all clean and looking good. Overall pretty easy job since the caps that spaceace picked were an easy fit everywhere.
Fired up, allowed everything to get up to temperature and settle, set DC offset and balance, and now playing some music.
It's always amazing how much better things sounds after we work on them? The 717 is really sounding wonderful tonight!!