JRC JMR-92 Series Field Service Manual page 475

Step 2 Remove the motor driver circuit board.
Remove all the connectors that are connected to the motor driver. Remove the four screws that
hold the motor driver unit.
HS モータ
NKE-2632-H
Motor driver circuit
ドライバー部
Port side
Step 3 Check the setting of the motor driver circuit.
The motor driver applies the 100 V/220 V common circuit. Before commencing replacement, set
the power supply of the driver to be replaced according to the power supply specification.
Motor Driver Circuit CBD-1950
左舷側
CBD-1950
H-7EPRD0039
1-2:100V 2-3:220V
Motor Driver Circuit CBD-1950
JP1 SETTING
1-2 short-circuit
2-3 short-circuit
3
JP1
1
4-255
M5 ねじ
Remove the four
screws (M5)
（4 箇所）
Description
100 VAC
220 VAC
Chapter 4 Replacement procedure