Nord Stage Classic Mod wheel/pitch bend/CV pedals not working

hey, all.

Doing my darndest to revive my Nord to its former glory.

I’ve fixed all key connections, re-lubricated the keys and it’s feeling great. Only problem is, the mod wheel/pitch bender are inactive. I’ve lived with this problem for years (treating it as an electric piano), but I really need either the Organ swell or the Control pedal to work so I can properly play organ.

Does anyone have any experience with this? I’m thinking they’re all downstream from the same problem.

Thank you

Failed to mention, upon plugging in the foot pedal, the volume drops significantly, as though the pedal were at minimum output.

maybe that helps.