System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 5-13
190-00682-01 Revision G
IN 6 GRS 77 #1
GIA1/GRS 77 #1 data path is functioning correctly.
GIA1/GRS 77 #1 data path is not functioning correctly.
• Load GIA1 configuration files.
• Swap GIA1 and GIA2, reconfigure both GIA’s to their new
locations to confirm if the problem is in the original GIA1.
o Replace original GIA1 if box turns to a green
checkmark (√) after swapping units.
• Swap GRS1 and GRS2 (no reconfiguration required, ref.
GRS Configuration and Testing sections) to confirm if the
problem is in the original GRS1.
o Replace original GRS1 if box turns to a green
checkmark (√) after swapping units.
Check the GIA1/GRS 77 #1 interconnect wiring for faults.
GIA1/GRS 77 #1 data path functionality is unknown. Reload
GIA1 configuration files.