Hi. Sorry, I forgot to check the forum! Thanks for the information.
I put a meter on pin 8 and ground and got < 1vdc, when the sparky was running and after shutting down, the value did not change. I put an LED at your suggestion to pin 1 and ground and the LED was on, moved it to pin 8 and ground and it was always off, when the sparky was running and when it was off.
Perhaps I'm doing something wrong?
It's running the latest Volumio image. I did not check to see if the serial console was running on the TX/RX ports, don't know if that would make a difference.