JRC JMA-993-SA Instruction Manual page 229

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8.1
FUNCTION CHECK
Make operational check on the radar equipment regularly and if any problem is found, investigate it
immediately. Pay special attention to the high voltage sections in checking and take full care that no
trouble is caused by any error or carelessness in measurement. Take note of the results of checking,
which can be used efiectively in the next check work.
Operational check shall be made in accordance with Table 8.1 Function Check List in the order as
soecified in it.
Table 8.1 Function Check List
Equipment Check ltem
Criteria
Remarks
Transmitter-
receiver Unit
Tuning LED of Receiver The LED is lighting during operation
48 NM range
Display Unit
Video and echoes on the screen
Sensitivity
CRT brilliance can be conlrolled
conectly
Various markers
Various numerical indications
Lighting
Can be correctly controlled
Safety switch and various
currents and voltages
(1) Referto Checkof SafetySwitch,
Various Currents and Voltages,
and Signals.
Communication lines
(2) Refer to Check of Peripheral
Units.
Panel
(3) Refer to Check of Panel.
ARPA
(4) Refer to Check of ARPA.
Magnetron current
(5) Refer to Check of Magnetron
Current.
Performance Monitor
(6) Refer to Check of Performance
Monitor.
Error Logging Display
(7) Refer to Check of Error Logging
Display.
System Information Display
(8) Refer to System Information
Display.
8-1