Garmin G1000 Nxi System Maintenance Manual page 156

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PFD 2 ARINC 429
Channel
LRU
GRS 77 or
GRS 7800
IN 1
or GSU 75
#2
GDC 7400
or
IN 2
GDC 72 #2
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
Indicator
Status
Green
PFD2/GRS or GSU 2 data path is functioning correctly.
PFD2/GRS or GSU 2 data path is not functioning correctly.
Verify GRS or GSU 2 status is "OK" using the Aux –
System Status page on the MFD. If it is not, correct
condition before proceeding, reference GRS
troubleshooting sections.
o Swap GRS1 and GRS2 (no reconfiguration
o Replace original GRS1 if box turns green after
Load PFD2 configuration file.
Red
Swap PFD2 and PFD1 to confirm if the problem is in
the original PFD2.
o Replace original PFD2 if box turns green after
Swap GRS1 and GRS2 (no reconfiguration required)
to confirm if the problem is in the original GRS1.
o Replace original GRS1 if box turns green after
Check the PFD2/GRS or GSU 2 interconnect wiring for
faults.
PFD2/GRS or GSU 2 data path functionality is unknown.
Amber
Reload PFD2 configuration file.
Green
PFD2/GDC #2 data path is functioning correctly.
PFD2/GDC #2 data path is not functioning correctly.
Verify GDC #2 status is "OK" using the Aux – System
Status page on the MFD. If it is not, correct condition
before proceeding, reference GDC troubleshooting
sections.
Load PFD2 and GDC #2 configuration files.
Red
Swap PFD2 and PFD1 to confirm if the problem is in
the original PFD2.
o Replace original PFD2 if box turns green after
Check the PFD2/GDC #2 interconnect wiring for faults.
Replace GDC #2 if problem remains.
PFD2/GDC #2 data path functionality is unknown. Reload
Amber
PFD2 configuration file.
required) to confirm if the problem is in the
original GRS1.
swapping units.
swapping displays.
swapping units.
swapping displays.
Page 143
Revision 1

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