The 540S-TC is an S series solid body electric guitar model introduced by Ibanez for 1987. It was also called the PRO540 Saber as part of the Roadstar II/Roadstar Pro series. The 540S-TC was produced in Japan by FujiGen.
The 540S-TC features a sleek, arched, double cutaway mahogany body bolted to a maple Wizard neck with a 22-fret rosewood fretboard with dot position markers. Components include IBZ/USA pickups made by DiMarzio with an triple-coil pickup (essentially a humbucker mounted together with a single-coil in a single pickup ring) at the bridge and a C2 noiseless, stacked single-coil (which Ibanez describes as "vertical humbucking" pickups) in the neck positions, an Edge double locking tremolo bridge with a locking nut and Gotoh tuning machines. It has a traditional bolt-on neck joint with a stamped metal plate.
It's assumed that very few examples of this model were produced, as it never appeared in a catalog and very few (perhaps only one) have ever been seen. The 540S is a more common version with a more traditional humbucker/ single/ single pickup configuration.
The 540S-TC has individual on/off switches for each of its three pickups. The volume pot has a push/pull switch for coil splitting the bridge humbucker.