JRC JMA-932B-SA - Parts Required for Periodic Replacement; Replacement of Magnetron

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8.5.1 Parts Required for Periodic Replacement
Here are parts required for periodic replacement
Part name Interval Radar model Part type Part code
JMA-922B-6XA/9XA
JMA-923B-7XA/9XA
M1568BS 5VMAA00106
1. Magnetron 4,000 hours
JMA-932B-SA
JMA-933B-SA
M1555 5VMAA00104
JMA-922B-6XA/9XA
JMA-923B-7XA/9XA
MDBW10822 MDBW10822
2. Motor 10,000 hours
JMA-932B-SA
JMA-933B-SA
MDBW10823 MDBW10823
3. Fan (Scanner Unit) 20,000 hours
JMA-922B-6XA/9XA
JMA-932B-SA
7BFRD0002 7BFRD0002
4. LCD PANEL 50,000 hours 7WSRD0002* 7WSRD0002*
5. Fan (Radar Process
Circuit)
20,000 hours
109R0612S4D13 5BFAB00588
6. Fan (Power Supply) 20,000 hours 109R0612S4D01 5BFAB00652
7. Backup battery 5 years CR2032 5ZBCJ00012
8. Hard disk 2 years CDD-717 CDC-717
9. UPS battery 3 years
CBD-1831
(CBD-1626)
CBD-1831
(CBD-1626)
10. CPU fan 4 years MPXP34470 MPXP34470
“*” means revision, such as A, B and so on.
8.5.2 Replacement of Magnetron
Replacement of magnetron must be made by specialized service personnel.
For details, refer to Service Manual.
Use necessarily the parts to meet the part types in the above shown in the
table.
When mounting a new magnetron, do not touch the magnet with a screwdriver or put it on an iron plate.
After replacement, connect the lead wire correctly.
Handling of Magnetron under Long-Time Storage
The magnetron that has been kept in storage for a long time may cause sparks and operate unstably when its
operation is started. Perform the aging in the following procedures:
(1) Warm up the cathode for a longer time than usually. (20 to 30 minutes in the STBY state.)
(2) Start the operation from the short pulse range and shift it gradually to the longer pulse ranges. If the
operation becomes unstable during this process, return it to the standby mode directly. Keep the state for 5
to 10 minutes until the operation is restarted.