Garmin Cirrus Perspective SR20, Line Maintenance Manual

Page: 72 / 316

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Page 5-26 Cirrus Perspective™ Line Maintenance Manual
Rev. E 190-00920-00
GIA1 RS ‐ 232 (continued)
Channel LRU Indicator Status
CHNL 7
GMA
347*
GIA1/GMA 347 data path is functioning correctly.
GIA1/GMA 347 data path is not functioning correctly.
•
Check PFD Alert Window for GIA or GMA configuration
or software error messages. Correct any errors before
proceeding.
•
Make sure the GMA 347 status is OK using the AUX ‐
SYSTEM STATUS PAGE on the MFD. If there is a Red ‐ X,
troubleshoot why the GRS is offline before proceeding.
•
Swap GIA1 and GIA2. Reconfigure both GIA’s at their
new locations to see if the problem is in the original
GIA1.
−
Replace original GIA1 if box turns green after
swapping units.
•
Check the GIA1/GMA 347 interconnect wiring and unit
connector pins for faults.
•
Replace GMA 347.
GIA1/GMA 347 data path functionality is unknown. Reload
GIA1 configuration files.
NOTE
* ‐ The path is identified by the Cirrus Perspective™ System as GMA 1347#1
on the GIA RS ‐ 232/RS ‐ 485 CONFIG page.