Originally Posted by TOM356C
If you have found the relay board for the slides, you will have a relay for each slide. If you have more than 1 slide,you can switch relays & see if it works. There are schematics for Nationals available on a couple of sites.
Tom 07 Pacifica
I have found no schematics on my 7372 yet that are any good.
Thinking these might the relays not sure.