Fanuc system 6. DNC offer exchange, repair, testing of parts for the system 6 control, 6, 6B, 6BII, 6C series master pcb, graphics, io, axis, res/ind, power supply units, CRT displays, keyboards and much more for the FS-6 controls. Covering system 6M, 6MA, 6MB, 6T, 6TB, 6G, 6P and many other variations of control system for thousands of CNC machine tools during the early 1980’s.