
G1000 System Maintenance Manual – Diamond DA40/40F Page 5-33
190-00545-01 Revision G
5.6.2.1 PFD RS-232 / ARINC 429 CONFIG Page
Table 5-16. PFD1 ARINC 429
Channel LRU Indicator Status
IN 1 GRS 77 #1
PFD1/GRS 77 data path is functioning correctly.
PFD1/GRS 77 data path is not functioning correctly:
• Configure PFD1.
• Configure GRS 77.
• Check the PFD1/GRS 77 interconnect wiring for
faults.
• Swap the PFD with the MFD to confirm if the
problem is in the original PFD.
o Replace original PFD if box turns green
after swapping displays.
o Replace GRS 77 if problem remains.
PFD1/GRS 77 data path functionality is unknown. Reload
PFD configuration file.
IN 2 GDC 74 #1
PFD1/GDC 74 data path is functioning correctly.
PFD1/GDC 74 data path is not functioning correctly:
• Reconfigure PFD1.
• Reconfigure GDC 74A.
• Check the PFD1/GDC 74 interconnect wiring for
faults.
• Swap the PFD with the MFD to confirm if the
problem is in the original PFD.
o Replace original PFD if box turns green
after swapping displays.
o Replace GDC 74A if problem remains.
PFD1/GDC 74 data path functionality is unknown. Reload
PFD configuration file.
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