Internal Power Failure In Control Unit; Inverter Malfunction; Zero Cross Failure - Simrad GC80 Compact MK2 User Manual

Simrad GC80/85 Compact MK2 Gyro Compass
988-12718-003
2
Check the input from the power supply to the Control unit:
Terminal board/Terminal: ......... ICNT/TB3, 24M+ and 24M-
Voltage: .......................................... 24 V DC +30% / -20%
3
Check the cables from the main power supply to the Control unit
4
Remove power to the Control unit and check the fuse:
XF6: 10 A
For location and replacement of the fuses, refer to page 42 onwards.

Internal power failure in Control unit

The alarm is generated when the Control unit's power supply is over
current or over voltage.
1 Turn the power OFF by pressing the POWER button. Re-press the
button after 20 seconds.
2
If no alarm is activated, continue the start-up procedure as
Start-up
described in
3 If the alarm continues, contact Simrad's local dealer for assistance.

Inverter malfunction

The alarm is generated if the Inverter in the Master compass is over current
or over voltage.
1 Turn the power OFF by pressing the POWER button. Re-press the
button after 20 seconds.
2 If no alarm is activated, continue the start-up procedure as
Start-up
described in
3 If the alarm continues, turn the power OFF and check the inverter
fuse:
XF1: 12 A.
For location and replacement of the fuses, refer to page 42 onwards.

Zero cross failure

This alarm is generated when the reference angle for the compass bearing
cannot be detected, or if there is an error in the bearing calculation.
1 Press the DISP button until the flashing bearing is displayed in the
LCD.
2 Adjust the bearing using the ARROW buttons until the bearing
corresponds to the vessel's actual bearing. Confirm the entry by
pressing the ACK/ENT button.
, page 19.
, page 19.
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