G1000 Redundant Connection Check - Garmin G1000 Nxi System Maintenance Manual

G1000 Redundant Connection Check

Perform the following steps to verify the following:
(A) The primary (PRI) and secondary (SEC) power sources for GIA 1, GRS 1, PFD 1, and
GDC 1.
(B) The AHRS and ADC data path to PFD.
(C) PFD and MFD Ethernet connection (includes ARINC connection between ADC and MFD
and DISPLAY BACKUP button function).
(D) Engine data availability to the displays and GPS data availability to the AHRS with either
GIA inoperative.
(A) PRI and SEC power sources for PFD 1, GIA 1, GSU 1, GRS 1 and GDC 1 check
1. Connect a ground power unit to the external power receptacle and turn on the ground
power unit.
2. Set the BAT, EXT PWR, and AVIONICS MASTER PWR switches to ON.
3. With the G1000 system in normal mode, pull the following circuit breakers on the right
hand circuit breaker panel:
•
PFD 1 (PRI)
•
AHRS 1 (PRI) or ADAHRS 1 (PRI)
•
ADC 1 (PRI) if installed.
•
GIA 1 (PRI)
4. Wait at least 5 seconds, then verify the data on PFD1 remains valid and the following
alert messages are not present:
•
GIA 1 FAIL (or any related message such as COM1, NAV1, XPDR1, GPS1)
•
AHRS 1 FAIL
•
ADC 1 FAIL
•
FAILED DATA PATH
5. Close the circuit breakers listed in step 3.
6. Repeat step 4.
7. Pull the following circuit breakers on the right hand circuit breaker panel:
•
PFD 1 (SEC)
•
AHRS 1 (SEC) or ADAHRS 1 (SEC)
•
ADC 1 (SEC) if installed
•
GIA 1 (SEC)
8. Wait at least 5 seconds, then repeat step 4.
9. Close the circuit breakers listed in step 7.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Page 122
Revision 1