GE Brivo OEC 715 Service Manual page 230

Otherwise, redo the mA Preheat Table Calibration. If the curve still can't be converged within 10ms,
slightly adjust R37 on FDB and redo mA Preheat Table Calibration.
18. Perform mA Accuracy Check refer to section 4.3.1.
and preheat mA calibration.
19. After the calibration process completion, remove the extend board and recover the system.
If the requirement is not met, redo mA calibration
Calibration
4-19