System Maintenance Manual

Page 5-12 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air
Revision G 190-00682-01
GIA1 ARINC 429
Channel LRU Indicator Status
IN 2
(applies only
with SW Image
0636.03 and
subs)
GRS 77 #2
GIA1/GRS 77 #2 data path is functioning correctly.
GIA1/ GRS 77 #2 data path is not functioning correctly.
• Load GIA1 configuration file.
• 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) to
confirm if the problem is in the original GRS2.
o Replace original GRS2 if box turns to a green
checkmark (√) after swapping units.
• Check the GIA1/ GRS 77 #2 interconnect wiring for faults.
GIA1/ GRS 77 #2 data path functionality is unknown. Reload
GIA1 configuration files.
IN 5 GDC 74 #1
GIA1/GDC 74 #1 data path is functioning correctly.
GIA1/GDC 74 #1 data path is not functioning correctly.
• Load GIA1 and GDC 74 #1 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.
• Check the GIA1/GDC 74 #1 interconnect wiring for faults.
Replace GDC 74 #1 if problem remains.
GIA1/GDC 74 #1 data path functionality is unknown. Reload
GIA1 configuration files.