Simrad GI51 Gyro Interface
18
20221594 / B
SYMPTOM
CORRECTIVE ACTION
No speed output
1.
Check LED indicator for Speed
Log input or NMEA RX
(depending upon which signal that
is selected by DIP switch SW2.1).
2.
Check LED for NMEA input.
3.
If input signal is missing, check
cabling or status of speed log.
4.
If input signal is ok, check cabling
for output signal
Note!
If pulses from the speed log fail to appear, the speed will
decrease towards zero during the next half minute before the
speed output is stopped.
5.1
LED indicators
Several LED indicators are used to indicate correct status for
power and input/output signals.
For location of the LEDs, refer to
Component location
, page 12.
LED NO.
COLOUR
INDICATION
D1 Green
CPU running indicator. Flashes with apr. 1Hz when the
processor is running.
D103 Green
Power polarity indication. Green light when polarity is
correct.
D400
D401
D401
Green
Step out indicators. Flashes with Step Out signal.
D603
Green
NMEA In indicator. Flashes with NMEA In signal.
D602
Green
NMEA Out indicator. Flashes with NMEA Out signal.
D1000
D1001
D1002
Green
Step In indicators. Flashes with Step In signal.
D1301 Green
RGC proprietary indicator. Flashes with RGC proprietary
signal.
D1600 Red
Synchro fault indicator. Will be lit if any signal is lost or if
no synchro is connected.
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