JRC JMR-92 Series Field Service Manual page 506

After having replaced the receiver, 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.
Step 3 Operation check
After having completed the replacement, 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. Transmit the radar wave in the long range
mode and open the service engineer menu to perform tuning adjustment. With the
service engineer menu open, also make sure the magnetron current is shown between
the 8th and 10th calibration markings.
This completes receiving unit replacement.
Chapter 4 Replacement procedure
(5) Remove the flange screws
(three screws in the back)
(3) Loosen the
two screws.
(4) Remove the
metal fitting.
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(2) Remove the
three screws.