Steve and Marty,
Thank you for your responses. The service manual is a keeper for sure. I found what I needed from the schematic on page 29. It shows the 8-pin Mini DIN configuration and the pin-out for each. Since this connector is prefixed with the letter J, I am assuming the view is as if I'm looking into the jack (female connector) on the backside of the 817. Is that correct??
Mark WB8BCU