JRC JMR-92 Series Field Service Manual page 383

Step 2 Remove the plate of the Motor driver circuit.
Remove the cover on the left (port) side. Remove the screws (three M4 screws) and cables
connected to the motor driver circuit board. Remove the metal plate to which motor driver circuit
board and relay filter circuit board are attached.
Step 3 Replace the Motor driver circuit.
Remove the cables connected to the motor driver circuit board. Remove the screws (four M4
screws) and then replace it. After having replaced the driver circuit board, reassemble the unit by
following the disassembly procedure in the reverse order. Do not forget to tighten the bolts or
screws, and make sure that the cables are connected.
Remove the three
screws.
Remove the
eight screws.
4-163 Chapter 4 Replacement procedure