G900X/G950 Installation and Maintenance Manual – Troubleshooting
Page D-35
190-00719-00
Revision D
Database and Software Alerts (continued)
Message
Cause
Solutions
DB MISMATCH – Terrain
database version mismatch.
The PFD and/or MFD
have different terrain
database versions
installed.
DB MISMATCH – Obstacle
database version mismatch.
The PFD and/or MFD
have different obstacle
database versions
installed.
DB MISMATCH – Terrain
database type mismatch.
The PFD and/or MFD
have different terrain
database types installed.
DB MISMATCH – Airport
Terrain database mismatch.
Xtalk is off.
The PFD and/or MFD
have different airport
terrain database types
installed.
•
Insert two identical version
supplemental database cards in the
PFD and MFD.
SW MISMATCH – GDU
software version mismatch.
Xtalk is off.
The system has found the
PFDs and/or MFD
software versions do not
match.
•
Load correct software version into
both displays.
MANIFEST – PFD1 software
mismatch. Communication
Halted.
The system has detected
an incorrect software
version loaded in PFD1.
MANIFEST – MFD software
mismatch. Communication
Halted.
The system has detected
an incorrect software
version loaded in MFD.
•
Load correct software version into
the display.
CNFG MODULE – PFD1
configuration module is
inoperative.
The PFD master
configuration module has
failed.
•
Check master configuration module
connector and wiring for damage
inside the GDU connector backshell.
•
Replace master configuration
module, wiring harness and pins.
NOTE
New Terrain/Obstacle cards, Jeppesen
Aviation Database and other optional
features (i.e. TAWS unlock card) will
need to be replaced if the master
configuration module is changed (see
note above). The System ID number will
change to a new number when installing
a new master config module. The old
Terrain and other cards will no longer
work as they will remain locked to the
old System ID number.