I finally got a chance to take a look and a few of the voltages were completely messed up.  I replaced the various parts to get the voltages reading as expected and everything is working as it should.  I appreciate your help, I had been away from working on this stuff awhile and I completely...

Yikes, rereading my post makes me wonder what I was doing when I typed that mess out.  Anyway, I don't know why I didn't actually check voltages, I'll do so tonight and report back.  Thanks!

Greetings,   I'm hoping someone can point me in the right direction to solve an issue with my pupdac.  I built it last winter and it ran great for 3-4 months and I really enjoyed the sound.  However, one day it stopped outputting sound (still shows up as USB DAC) and I started to investigate...