Sailor RT5022 VHF DSC Operation Manual page 32

5.2.1.1 Ship´s power
Ship´s power may occasionally be interrupted for a short time, e.g. if switching between land
power or generator power. The VHF equipment will turn off immediately when power is
failing. If power does not resume within 10 minutes the VHF cannot be expected to start up
automatically.
5.2.1.2 Fuses
If a press on the ON/OFF button does not turn on the VHF, though ship´s power is present,
check if the fuse may have blown. The main fuse is located on the rear side of the VHF, just
below the power plug. Replace fuse with a new one, if found blown.
Fuse 15A ATO
5.2.2 Self-test
Symptom: Radio operation is difficult.
It is possible to make a self-test of the equipment user interface. Any entry means and
readouts can be verified in the self test. The test is executed from menu 5.
If any of the following tests are failing the local Thrane & Thrane representative should be
contacted for assistance.
5.2.2.1 Key test
All push buttons can be checked using the self-test in menu 5.1. Pressing or releasing any
key on the front panel will be echoed in the graphic display. Only exception is DISTRESS
and ON/OFF - which will maintain their functionality. These buttons may be pressed
periodically for a short time to check that they are functional. Pressing
the test.
5.2.2.2 Display test
The information/message display is an LCD screen. A test of all pixels in the screen is
executed in menu 5.2. Triangles are shown in the display.
5.2.2.3 LED test
The LED test will check all light indicators including the channel display. Running the LED
test (5.3) will turn on all indicators for 2 seconds, where after these will return to their
previous state.
5.2.2.4 Alarm and Audio Test
Entering this test item (5.4) will route the distress and urgency alarm sound to all speakers
where this alarm is to be heard.
Additionally the 4 external relay outputs (CALL, ALARM, AUX1 and AUX2) will be activated
for the duration of the test signal. The relays resume to their respective functional state when
the alarm tone terminates (after 3 seconds).
26
twice will exit
0611