Garmin Diamond DA 40 Maintenance Manual page 71

MESSAGE ADVISORY Alerts
Message Advisory
PFD FAN FAIL – The cooling fan for the PFD is
inoperative.
MFD FAN FAIL – The cooling fan for the MFD is
inoperative.
GIA FAN FAIL – The cooling fan for the GIAs is
inoperative.
From this point forward, all other message advisory alerts are standard to the G1000
system and are not specific to the DA 40. Messages are grouped according to LRU.
5.4 GDU 1040 Troubleshooting
5.4.1 GDU 1040 Common Problems
Symptom
Display will not track photocell
Keypad/bezel will not track photocell
Display will not track dimmer bus
Keypad/bezel will not track dimmer
bus
5.5 GDU 1040 Alerts
5.5.1 Software/Configuration Alerts
Failure Message
SW MISMATCH – GDU software
version mismatch. Xtalk is off.
MANIFEST – PFD1 software
mismatch. Communication
Halted.
MANIFEST – MFD software
mismatch. Communication
Halted.
MFD1 CONFIG – configuration
error. Config service req'd.
PFD1 CONFIG – configuration
error. Config service req'd.
5.5.2 Database Alerts
Failure Message
MFD1 DB ERR – MFD1 aviation
database error exists.
G1000/DA40 System Maintenance Manual
190-00303-03
Solution
Ensure that the CDU FAN and/or AV FAN circuit breakers are
closed.
Check cooling fan wiring.
Replace cooling fan. Refer to Figure 2-2 and/or Figure 2-7
for installation drawings.
NOTE
Recommended Action
Check display lighting settings on the Main Lighting page:
If problem persists, replace defective unit.
Check keyboard lighting settings on the Main Lighting page:
If problem persists, replace defective unit.
Check display lighting settings on the Main Lighting page.
Switch MFD and PFD:
If problem follows unit, replace defective unit.
Check keyboard lighting settings on the Main Lighting page.
Switch MFD and PFD:
If problem follows unit, replace defective unit.
Cause
The system has found the PFD
and MFD software versions do not
match.
The system has detected an
incorrect software version loaded
in the PFD.
The system has detected an
incorrect software version loaded
in MFD.
A configuration mismatch has
occurred between the display and
the Master Configuration Module.
Cause
The MFD has encountered an
error in the Jeppesen aviation
database.
Solution
Load correct software version. See
Section 7.1 for GDU 1040 Software
Loading procedure.
Reconfigure MFD and/or PFD as
described in Section 7.1.2.
If unable to reconfigure, replace
defective master configuration
module as described in
Section 6.8.
Solution
Reload Jeppesen database.
Replace the MFD.
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