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Step 5
Operation check
After you have completed the replacement work, turn On the safety switch and follow the
procedure below to check the operation.
1.
Turn On the Display unit for the radar. Allow sufficient time for the radar to be
preheated (about 20 to 30 minutes/bring the radar unit to STBY mode).
2.
Start transmission from the short pulse range and gradually change it to the long
pulse range. Open the service engineer menu to perform tuning adjustment.
Check the
operation becomes unstable, bring the radar unit back to STBY mode
and restart transmission after allowing for an interval of 5 to 10
minutes.
3.
Transmit radio waves in long pulse range mode for about 15 minutes and reopen the
service engineer menu to perform tuning adjustment.
Adjust the setting in the service engineer menu until the tuning indication bar on the
display unit reaches the 8th calibration marking. Check in the test menu that the
magnetron current is between the 6th and 9th calibration markings.
4.
Finally, initialize the transmission time in the service engineer menu.
This completes magnetron replacement.
Chapter 4 Replacement procedure
current on the test menu during the time and if
magnetron
4-12
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