Fanuc A06B-6057-H Servo Amplifier. DNC offer full services for the 1st AC Digital 6057 Series units for late digital system 10, 11, 0 and 15 series controls, including exchange, repair, used spares, fault diagnosis and testing facilities. 180 day warranty exists on Servo Amps repair and supplied parts, also servo boards, and transistor modules are available. For the A06B-6057 servo drives (Red Cap AC and S series servo motors) that are not in stock, or drives that not required urgently, DNC offer a 24 hour turnaround service as standard on A06B-6057- if AC axis repairs are Urgent then same day is possible with enough advanced notice.