System Maintenance Manual

Page 5-10 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air
Revision F 190-00682-01
5.2.1.2 GIA RS-232 / ARINC 429 CONFIG Page
GIA1 RS-232
Channel LRU Indicator Status
CHNL 1 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.
CHNL 2
GRS 77 #2
(output only)
GIA1/GRS 77 #2 output data path is not monitored. A black
box N/A is normal.