Furuno FS-1575 FS-2575 FS-5075 User Manual

11.  MAINTENANCE & TROUBLESHOOTING

The AC-DC power supply unit PR-850A has a circuit breaker. If the breaker has 
tripped, find the reason before resetting the breaker.

This function sends a test signal to a coast or ship station, over one of six distress and 
safety frequencies. For that reason, it should not be executed unnecessarily. You can 
prepare a test call beforehand (see paragraph 6.16.5).

1. Press the OTHER DSC MSG key to open the [COMPOSE MESSAGE].
2. Rotate the ENTER knob to select [MSG TYPE] then push the knob.
3. Rotate the ENTER knob to select [TEST MSG] then push the knob. [PRIORITY] 

is automatically set to [SAFETY].

4. With [TO] selected, push the ENTER knob.
5. Rotate the ENTER knob to select [DIRECT INPUT] or [ADDRESS BOOK DATA] 

then push the knob.
[ADDRESS BOOK DATA]: Select an MMSI from the [ADDRESS BOOK] (see 
section 6.15) then push the ENTER knob.
[DIRECT INPUT]: Enter the MMSI of the station where to send the test message 
then push the ENTER knob.

6. With [DSC FREQ] selected, push the ENTER knob.
7. Rotate the ENTER knob to select DSC frequency then push the knob.
8. With [GO TO CALL] selected, push the ENTER knob to send the test message. 

The screen is changed to one for transmission. After the call is sent, the equip-
ment waits for acknowledgement of the call. The timer starts counting up the time 
to wait for acknowledgement.

9. Do one of the following.

The audio alarm sounds and the message "TEST ACK received! [CANCEL]: Stop 
alarm" appears. Press the CANCEL key to silence the alarm.

ERROR:
VC error!
Please restart
the power supply.
[CANCEL]: Stop alarm

VC voltage decreases. Transmis-
sion is stopped.

Reset the power. If normal opera-
tion is not restored, contact your 
dealer.

POWER

ON

ON

OFF

AC INPUT 50/60Hz

DC OUTPUT

Breaker