Troubleshooting - uAvionix AV-30-E Installation Manual

14 Troubleshooting

The following steps are to aid in identifying installation or unit
performance related issues:
Issue.
Power
Unit does not power-on.
Unit will not shut off, even if power is
removed.
Stabilization
Unit will not stabilize and aligning
annunciator remains
DG drifts more than 30 degrees per
hour.
Unit flashes "NO MAG" on right side
Unit flashes "MAG CAL" on the right
side
Battery
Battery indicator shows
Trim
Roll, Pitch or Slip show small but
constant error.
Airspeed or Altitude shows small but
constant error.
UAV-1004234-001, AV-30-E Installation Manual
Rev H
Table 14-1 – Troubleshooting
on.
FAIL.
Possible Reason
Check associated breakers.
Ensure aircraft battery is greater than 10
Check wiring and pinouts.
Ensure no pitot or static blockage or line kinks are
present (locking pressure and airspeed indication over
40 knots)
Pitot and Static sensors need to be zeroed as
described in Section 13.2.8
Return to factory for service if unit does not align
within 3 minutes of power-on.
Ensure running latest available software; perform
Vibration Check as described in Section 13.2.7
Perform Gyro Calibration as described in Section
13.2.2
Enable magnetometer aiding, if internal or AV-Mag
external magnetometer is available – see Section
13.1.9
Check that you have selected the intended internal or
AV-Mag external magnetometer function.
Check AV-Mag wiring for intermittent connection or
poor grounding.
Complete the Mag Calibration flight in Section 13.2.3 if
using the internal magnetometer.
Complete the on-ground 12-point calibration in Section
13.2.4 if using the external magnetometer.
Contact uAvionix support.
Ensure unit is level in panel (using a bubble level or
similar)
Set trim adjustment in Installation menu. See
Installation Manual for
Set trim adjustment in Installation menu. See
Installation Manual for
and section 13.2.9
VDC.
instructions..
instructions... Section 13.2.8
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