Figure 5-9. Gtx 33 Data Paths - Garmin Diamond DA 40 Maintenance Manual

5.10 GTX Troubleshooting
5.10.1 GTX Alerts
Failure Message
MANIFEST – GTX1 software
mismatch. Communication
Halted.
XPDR1 CONFIG – XPDR1
configuration error. Config service
req'd.
5.10.2 GTX Redundant Paths
Failure Message
BACKUP PATH – Transponder
using backup data path.
Primary Data Path
GDU 1040
PFD
ETHERNET
ETHERNET
RS-232
No. 1
GIA 63
Page 5-20
Revision 6
Cause
The system has detected an
incorrect software version loaded
in GTX 33.
The system has detected a GTX
33 configuration mismatch.
Cause
The GTX 33 is using a backup
RS-232 data path.
GDU 1040
MFD
GTX 33

Figure 5-9. GTX 33 Data Paths

Solutions
Reload software. See Section 7 for
GTX 33 Software Load Procedure.
Reload configuration file. See Section 7
for GTX 33 Configuration
Procedure.
Solutions
Check RS-232 configuration settings at
GIA and GTX page groups:
If configuration is not correct,
reconfigure GIA or GTX as
described in Section 7.
Check wiring.
Replace GIA1 with a known good unit,
to verify location of problem:
If problem persists, replace the
GTX 33.
If problem does not persist,
replaced GIA1.
Secondary Data Path
GDU 1040
PFD
ETHERNET
GTX 33
G1000/DA40 System Maintenance Manual
GDU 1040
MFD
ETHERNET
RS-232
No. 2
GIA 63
190-00303-03