Avidyne IFD540 Installation Manual page 180

Component
CMOS Battery Dead CAS
Message
VHF Radio Slots displaying Red-
Xs
Unit starts up in Maintenance
Mode
Unable to get out of Maintenance
Mode or not sure how to
IFD to IFD Communication is not
functional as indicated by either
"CROSSYNC FAIL" CAS
message or no data sharing
observed between the IFDs
"Config Mismatch" CAS message
on IFD5XX (dual IFD5XX only)
600-00299-000
Trouble
The 10-year life expectancy of
the CMOS battery has been
reached. This may result in
longer GPS satellite acquisition
times.
No power on the P1002
Connector
Chassis ID not set to 0 or 1
USB fob installed at power up
IFD last shut down in
Maintenance Mode
---
IFD is misconfigured
Wiring incorrect
Configuration mismatch
between the two IFD540 units
Page 180 of 198
IFD5XX Installation Manual
Probable Cause Solution
Check Flight Mode settings on
User Options page for Display
and Bezel Brightness and source
Check power button on IFD
Check Mx Mode settings on
Lighting page for proper setting
Return the IFD to Avidyne
Service Center for battery
replacement
Ensure all governing circuit
breakers have power
Check and set as required, the
Chassis ID per section 2.2
Ensure fob is not in the USB slot
and reapply power to the IFD
Press the left or right side of the
AUX page until the "DONE" Line
Select Key is visible and press
that LSK to force the IFD to
restart into flight mode
Press the left or right side of the
AUX page until the "DONE" Line
Select Key is visible and press
that LSK to force the IFD to
restart into flight mode
Ensure RS-232 Channel 3 is set
to CrossSync on each IFD
Ensure serial Channel 3 wiring is
installed per Section 4.7
Power cycle the IFD5XX units
Verify configuration on IFD5XX
units
If problem persists, send IFD5XX
log data to Avidyne Technical
Support
Revision: 02