JRC JMA-932B-SA User Manual page 385

(3) Loosen the four screws (M4) to remove
the driver unit, which has the motor
driver circuit board on its back side.
(NKE-1130)
Disconnect the cables connecting the motor to the
motor driver circuit board.
(4) Remove the cover on the left (port) side
and remove the five screws (M5) to
remove the fixture. (NKE-1130)
8.5 Replacement of Major Parts
Driver unit (driver circuit
board at the back side)
Driver circuit board
Remove the metal fixture.
8-30
Remove the
four screws.
Disconnect the
cables.
Remove the
five screws.
8 8 8