Instruction Manual

G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air Page 5-13
190-00716-01 Revision 4
GIA1 ARINC 429
Channel LRU Indicator Status
IN 5
GDC 7400
#1
Green
GIA1/GDC 7400 #1 data path is functioning correctly.
Red
GIA1/GDC 7400 #1 data path is not functioning correctly.
• Load GIA1 and GDC 7400 #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 green after
swapping units.
• Check the GIA1/GDC 7400 #1 interconnect wiring for
faults.
Replace GDC 7400 #1 if problem remains.
Amber
GIA1/GDC 7400 #1 data path functionality is unknown. Reload
GIA1 configuration files.
IN 6
GRS 77 or
GRS 7800 #1
Green
GIA1/GRS 77 or GRS 7800 #1 data path is functioning
correctly.
Red
GIA1/GRS 77 or GRS 7800 #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 green 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 green after
swapping units.
Check the GIA1/GRS 77 or GRS 7800 #1 interconnect wiring
for faults.
Amber
GIA1/GRS 77 or GRS 7800 #1 data path functionality is
unknown. Reload GIA1 configuration files.