JRC JMR-92 Series Field Service Manual page 365

Step 3 Replace the brake circuit.
Remove the four screws (M4) on the resistors at the top of the unit. Remove the cable that is
connected to J1504 of the motor driver circuit, and replace the brake circuit (CFA-253: resistor with
cable). After replacing the brake circuit, reassemble the unit 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.
Step 4 Operation check
After completing the replacement work, turn On the safety switch and check operation by
following the procedure below.
(1) Turn On the Display unit. After the countdown is completed, start transmission and check that
the radar image appears without error.
This completes brake circuit replacement.
Remove the four screws.
4-145 Chapter 4 Replacement procedure