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Page 5-24
G1000 System Maintenance Manual
Rev. A
190-00903-00
SELECT UNIT—GIA2
RS-232 WINDOW
Channel LRU Indicator
Status/Recommended
Actions
GIA2/GDC 74B #2 data path is functioning
correctly.
GIA2/GDC 74B #2 data path is not functioning
correctly.
•
Check PFD1 Alert Window for GIA or
GDC configuration or software error
messages. Correct any errors before
proceeding.
•
Verify GDC 74B #2 status is OK using the
AUX – SYSTEM STATUS page on the
MFD. If it has a Red-X, troubleshoot why
the GDC is offline before proceeding.
•
Swap GIA1 and GIA2, reconfigure both
GIA’s to their new locations to confirm if
the problem is in the original GIA2.
−
Replace original GIA2 if box turns
green after swapping units.
•
Check the GIA2/GDC 74B #2
interconnect wiring and unit connector
pins for faults.
•
Replace GDC 74B #2.
CHNL 1
GDC 74B #2
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 box is normal.