First off, thanks Pete for the link!!! Second off, thanks GGG for your experienced reply. Though you could have pointed me on the right direction to troubleshoot the no go and sound issues (LOL). It's not my intention to hang out a shingle with "I fix Proto 2 boards", that's NEVER going to happen! Nonetheless, I respect ones knowledge to be private. I'll poke around with the Proto's. My knowledge of electronic circuitry is based on Electro-Mechanical , and Digital pinball repair. Different than "O" gauge boards, but theories apply.
Thanks all,
Joe