JRC JMR-92 Series Field Service Manual page 361

Step 2 Remove the metal plate of the motor driver circuit board and relay
filter circuit board
Remove the cover on the left (port) side. Remove the cable connecting to the motor driver circuit
board and relay filter circuit board. After removing the screw (three M4 screws) and the cable,
remove the metal plate to which the motor driver circuit board and relay filter circuit board are
attached.
Remove the
three screws.
Motor driver circuit board
4-141 Chapter 4 Replacement procedure