
G1000 System Maintenance Manual – Diamond DA40/40F Page 5-37
190-00545-01 Revision G
Table 5-19. GIA1 ARINC 429
Channel LRU Indicator Status
IN 5 GDC 74 #1
GIA1/GDC 74A data path is functioning correctly.
GIA1/GDC 74A data path is not functioning correctly:
• Reconfigure GIA1.
• Reconfigure GDC 74A.
• Check the GIA1/GDC 74A interconnect for wiring
faults.
• Swap the GIA’s to confirm if the problem is in the
original GIA.
o Replace original GIA if box turns green after
swapping units.
o Replace GDC 74A if problem remains.
GIA1/GDC 74A data path functionality is unknown. Reload
GIA1 configuration file.
IN 6 GRS 77 #1
GIA1/GRS 77 data path is functioning correctly.
GIA1/GRS 77 data path is not functioning correctly:
• Reconfigure GIA1.
• Reconfigure GRS 77.
• Check the GIA1/ GRS 77 interconnect for wiring
faults.
• Swap the GIA’s to confirm if the problem is in the
original GIA.
o Replace original GIA if box turns green after
swapping units.
o Replace GRS 77 if problem remains.
GIA1/GRS 77 data path functionality is unknown. Reload
GIA1 configuration file.
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