I have an 89 Ocean with an original SMX control unit that lights up, stuff clicks but never turns on the compressor or pump. Switching on manual override hot or cold fires everything up. I assume I have a problem in the Power Module where the override switch is mounted. Before I start digging in, it would be nice to have a schematic of the system. I can find a bunch of stuff on the newer SMX II and beyond units, but not much on the older. If anyone has an old install manual and can provide the schematic portion of the manual...maybe even a trouble shooting section that would be great!