Garmin GNC 420 - Manual (Page 235)

GNC 420(A) Pilot’s Guide and Reference
SECTION 13 – MESSAGES,
ABBREVIATIONS, & NAV TERMS
13-7
Message Description
Stored data was lost
All user waypoints, flight plans, and system settings have been lost due to a memory battery
failure or system reset.
Terrain See Section 10.3 for complete list of TERRAIN related Alerts and Annunciations.
Terrain configuration
conflict
The hardware configuration does not match the terrain software configuration. The
operational status of the terrain components is unknown and the unit should be returned to
a Garmin dealer for service.
Terrain configuration
has changed
The software has detected a change in the terrain configuration.
Terrain has failed
The terrain functionality self-test has failed. The operational status of the terrain components
is unknown and the unit should be returned to a Garmin dealer for service.
Timer has expired The count down timer has reached zero.
Traffic device needs
service Either the TCAD battery or the TCAD interrogation device has failed. If the message persists,
contact a Garmin dealer for assistance.
Unit configuration has
changed
The GNC 420 has detected a failure (during initial power up) in its system configuration.
Some system components may be unusable. Try cycling power off and back on. If the
message persists, contact a Garmin dealer for assistance.
User card format
unknown
A data card has been inserted, but the format of the card is not recognized.
Waypoint already
exists
The name entered for a user waypoint already exists in memory.
Waypoint(s) have been
replaced
One or more user waypoints were updated during a unit-to-unit crossfill operation.
Waypoint memory is
full All 1000 user waypoint locations in the GNC 420’s memory have been used. Delete
unwanted waypoints to make room for new entries.
190-00140-20 Rev. K