Garmin G1000 Nxi System Maintenance Manual page 173

Invalid Data Field
Engine/Airframe Sensors (All
Invalid)
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Associate
d LRU(s)
•
If software was loaded to a new GDU display, be sure that
the user settings for the replaced display were cleared.
Clear user settings by pressing the CLR key on the
replaced display while applying power to it. Acknowledge
the on-screen prompt by pressing the ENT key or the right-
most softkey.
•
Check for GEA related Alert messages on the PFD.
Correct any Alerts concerning software or configuration
errors by reloading software or configuration as noted.
•
Verify GEA internal power supply, configuration, and
calibration status in configuration mode.
GEA 71 
The internal power supply, configuration and
calibration boxes should be green. If they are red,
&
replace the GEA 71.
GIA 63W
•
Verify internal, external, and reference voltages listed in the
Main Analog and I/O A Analog boxes are not dashed out
(does not include Aircraft Power 1 and 2).

If any voltages are dashed out, replace the GEA.
•
Ensure the GEA is online (green checkmark on the Aux –
System Status page).

If GEA is not online verify unit is receiving power at the
rack connector.

Check the GIA/GEA interconnects for faults.

Reload configuration files to both GIA's and the GEA.
•
If problem persists, replace the GEA 71.
Solution
Page 160
Revision 1