The Allen-Bradley 74103-244-56 printed circuit board, also known as the 1336-BDB-SP6D printed circuit board is a spare part kit that contains a gate drive printed circuit board or PCB. It can be used for drives with faulty gate drive PCBs which belong to the Allen-Bradley1336 PLUS, 1336 PLUS II, 1336 IMPACT, and 1336 FORCE product lines. Specifically, the 74103-244-56 printed circuit board works with the Frame B 1336 series drives which fall into 2 categories that are Series C and up 1336 IMPACT, FORCE, and PLUS drives with 30 Horsepower output ratings and 460 Volts AC input voltage ratings, and Series A and up 1336 PLUS II drives with 30 Horsepower output ratings and 460 Volts AC input ratings. One 74103-244-56 kit is required for each AC drive.

A gate drive PCB such as the 74103-244-56 PCB is a printed circuit board (PCB) which operates as a power amplifier device. It accepts input at low power from an integrated circuit (IC) and it provides a high current at its output which is used to drive the gate of a transistor which could be a power MOSFET or an IGBT brake. Several precautions are recommended by Allen-Bradley to ensure the safety of the users and equipment during the repair of AC drives such as the 1336 series. These include the use of a static-free work area, the disconnection of the drive's electrical power, and allowing bus capacitors to discharge to 0 Volts prior to working on the drives. Additionally, since the drives contain parts that are sensitive to ESD, Allen-Bradley also recommends that the users wear grounded wrist straps and use static-shielded containers for storing the drive components.