seeburg 3w1 com problem

Hello Everyone,

First posting for me. I have a very nice 1951 Seeburg 100B juke with
a newly aquired 3w1 wallbox connected to it. When I make a selection
on the wallbox, it does it's thing and I can hear the jukebox clicking
in response ... but nothing happens after that. I though that the
older Seeburgs were set up with everything needed to connect to a
wallbox. Since I can hear it responding, I (maybe incorrectly) assume
that the 2050 tube is working. Any ideas? Thanks