System Maintenance Manual

Page 5-14 G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air
Revision F 190-00682-01
GIA2 RS-232
Channel LRU Indicator Status
CHNL 1 GDC 74B #2
GIA2/GDC 74 #2 data path is functioning correctly.
GIA2/GDC 74 #2 data path is not functioning
correctly.
• Load GIA2 and GDC 74 #2 configuration files.
• Swap GIA2 and GIA1, reconfigure both GIA’s to
their new locations to confirm if the problem is in
the original GIA1.
o Replace original GIA2 if box turns to a
green checkmark (√) after swapping units.
• Check the GIA1/GDC 74 #2 interconnect wiring
for faults.
Replace GDC 74 #2 if problem remains.
GIA2/GDC 74B #2 data path functionality is unknown.
Reload GIA2 configuration files.
CHNL 2 GRS 77 #1 (output only)
GIA2/GRS 77 #1 output data path is not monitored. A
black N/A box is normal.
CHNL 5 GTX 33/33D #2 w/TIS
GIA2/GTX 33 #2 data path is functioning correctly.
GIA2/GTX 33 #2 data path is not functioning
correctly.
• Load GIA2 and GTX 33 #2 configuration files.
• Swap GIA2 and GIA1, reconfigure both GIA’s to
their new locations to confirm if the problem is in
the original GIA1.
o Replace original GIA2 if box turns to a
green checkmark (√) after swapping units.
• Check the GIA2/GTX 33/33D #2 interconnect
wiring for faults.
Replace GTX 33/33D #2 if problem remains.
GIA2/GTX 33 #2 data path functionality is unknown.
Reload GIA2 configuration files.