Hi, I have edited the answers to your questions into the original post (to keep everything together). I hope this helps. Jon
PS I didn't see your edit until I was done with mine; sorry.
Ok. Someone must know the answer. My C18 SMD capacitor is open and unmarked. I don't think guessing at the value is quite the right way to go. So, I really need your help -- please! Or a complete schematic and BOM would be nice too.