The Aerobics Inc. 92201 IZ7506‑ELV is a treadmill motor control board used in Pacemaster SX Pro models; it manages stepper drive, speed regulation, and safety interlocks. Common failure points on this class of boards include burnt or tripped MOSFETs in the power stage, degraded capacitors on the high‑voltage rail, and damaged driver ICs that cause erratic motor behavior or loss of communication with the treadmill controller. Initial checks should verify 48 V DC input integrity, inspect for visual signs of component damage (burn marks, bulging caps), and confirm proper operation of the motor driver outputs using a multimeter or oscilloscope. If the board passes these tests, review any error codes generated by the treadmill’s diagnostic interface to pinpoint firmware or sensor faults.[oss-gpt-20b]