Gary, Andy, Finally back to this issue. I'm still in the same spot. I: Disconnected the secondary RX Verified I'm at 5 Using teeny-weeny voltage meter probes, confirmed the connector had line voltage BUT, I still have zeros for the external voltage. Below are the shots that Gary requested. ANY AND ALL IDEAS welcomed. I'm going to physically swap the RX's to see if the current primary is just not listening to the teeny-weeny connector. Thanks Mike p.s. sorry for the poor shot quality.