Figure 5-8. Gea 71 Data Paths - Garmin Diamond DA 40 Maintenance Manual

5.9 GEA Troubleshooting
5.9.1 GEA Alerts
Failure Message
MANIFEST – GEA1 software
mismatch. Communication
Halted.
GEA1 CONFIG – GEA1
configuration error. Config service
req'd.
5.9.2 GEA Redundant Paths
Failure Message
BACKUP PATH – EIS using
backup data path.
Primary Data Path
GDU 1040
PFD
ETHERNET
ETHERNET
RS-485
No. 1
GIA 63
G1000/DA40 System Maintenance Manual
190-00303-03
Cause
The system has detected an
incorrect software version loaded
in GEA 71.
The system has detected a GEA
71 configuration mismatch.
Cause
The GEA 71 is using a backup
RS-485 data path.
GDU 1040
MFD
GEA 71

Figure 5-8. GEA 71 Data Paths

Solution
See Section 7 for GEA 71 Software
Load Procedure.
See Section 7 for GEA 71 Configuration
Procedure.
Solutions
Check RS-485 configuration settings at
the GIA page group:
If configuration is not correct,
reconfigure GIA as described
in Section 7.
Check wiring.
Replace GIA1 with a known good unit,
to verify location of problem:
If problem persists, replace the
GEA 71.
If problem does not persist,
replace GIA1.
Secondary Data Path
GDU 1040
PFD
ETHERNET
GEA 71
GDU 1040
MFD
ETHERNET
RS-485
No. 2
GIA 63
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Revision 6