ALARM MESSAGES AND CORRECTIVE ACTIONS
20221529 / C 105
Internal power failure in Control unit
Generated when the Control unit’s power supply are over current
or over voltage.
1 Turn OFF the power by pressing the POWER button, and
repress the POWER button after 20 seconds.
2 If no alarm is activated, continue the start-up procedure as
described in Start-Up, page 10.
3 If the alarm is repeated, contact Simrad’s local dealer for
assistance.
Inverter failure
Alarm generated in the Inverter in the Master compass is over
current or over voltage.
1 Turn OFF the power by pressing the POWER button, and
repress the POWER button after 20 seconds.
2 If no alarm is activated, continue the start-up procedure as
described in Start-Up, page 10.
3 If the alarm is repeated, turn OFF the power and check the
inverter fuse, F1:12A.
For location and replacement of the fuses, refer to page 29
onwards.
Zero cross failure
This alarm is generated when the reference angle for the
compass bearing not can be properly detected, or if a fault is
generated in the bearing calculation.
1 Press the DISP button until the flashing bearing is
displayed in the LCD.
2 Adjust the bearing with the arrow buttons until the bearing
corresponds to the vessel’s actual bearing, and confirm the
entry with the ACK/ENT button.
If the bearing input was accepted by the system, the LCD
will display current bearing without flashing.
3 Report the error to Simrad even if the bearing is accepted
and the alarm removed.
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