Patent ID: 6304403
Filing Date: 2001-10-16
Classification: G11B

Abstract:
A read/write preamplifier circuit for a disc drive having at least one disc adapted to store data, a plurality of data heads adapted to transfer data to and from a disc, and a drive controller, the preamplifier circuit comprising:a plurality of read/write preamplifiers, each adapted to communicate with the drive controller and with at least one data head associated therewith, at least one of the read/write preamplifiers comprising a fault detecting circuit adapted to detect whether two or more of the read/write preamplifiers are concurrently selected for communicating with their associated data heads; anda data storage register readable by the drive controller and comprising a fault flag which indicates whether the fault detecting circuit detects that two or more of the read/write preamplifiers are concurrently selected for communicating with their associated data heads.