im not sure about your guitar exactly but the knobs should be volume and tone. if there are 3 knobs it is mostlikly volume volume tone. the switch if its a 3 psoition switch is neck/both/bridge if its 5 you might have coil tapping. meaning in a certain position the switch turns your humbucker into a single coil.

sry its not much help but i dont know much about that kind of guitar.