Japan Radio Co. JSS-2150, Руководство по обслуживанию

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Maintenance
4-1
4. MAINTENANCE
4.1 Periodic inspections
4.1.1 Checklist
Check the following items during periodic checks. If there are other regulations directed by the
concerned administration or inspection body, follow those regulations.
Procedure Item Description
1 Check installation of the equipment
Check if the equipment is fixed properly and if
screws are tight.
2 Check cleanliness
Check if the equipment is clean. If the exhaust is
covered with dust, use a cloth to clean it.
3 Check antenna installation
Check if the antenna and antenna tuner are
properly fixed, and if there are problems with the
waterproofing.
4 Check voltage of power source
Check the AC and DC power voltage.
Check that the equipment automatically switches
to the backup DC power input when AC power is
cut.
5 Check registration ID
Check the ship's MMSI and the equipment's
manufacture number.
* Menu F1.1 Registration
6 Check basic operation
Check basic operations of the equipment,
including the power on and off switch, adjust
frequencies with the jog dial, RF GAIN and VOL
knob operation, jog dial operation, and
transmission with the PTT and CW KEYER keys.
7 Checking the alarm history
Check the alarm history.
* Press ENT twice on the Menu 6.2 Alarm
information screen
8 Run self diagnosis
Run the self diagnosis for each unit.
* Menu 6.1 Self diagnosis
9 Check Tx power and frequency
Check Tx power using the equation P = Vc x Ic x η .
* F2.3.1 TX power adj. (mentioned above)
Check Tx frequency using a frequency counter.
10 Modulation frequency
Check the DSC/NBDP AF (see 4.1.2), or if needed,
check the test tone frequency (see 4.1.3).