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Page 5-28
G1000 System Maintenance Manual
Rev. A
190-00903-00
SELECT UNIT—GIA2
ARINC 429 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.
IN 5
GDC 74B #2
GIA2/GDC 74B #2 data path functionality is unknown.
Reload GIA2 configuration files.