Garmin GTN 625 Pilot's Manual page 430

Message
Foreword
COM RADIO -
Getting
Com overtemp
Started
or undervoltage.
Reducing
Xpdr Ctrl
transmitter power.
Com/Nav
FPL
COM RADIO -
Direct-To
Com locked to
121.5 MHz. Hold
Proc
remote com
transfer key to exit.
Wpt Info
CONFIGURATION
Map
- Terrain/TAWS
configuration is
Traffic
invalid. GTN needs
service.
Terrain
Weather
CONFIGURATION
MODULE -
Nearest
GTN configuration
module needs
Services/
Music
service.
COOLING -
Utilities
GTN overtemp.
Reducing backlight
System
brightness.
Messages
Symbols
Appendix
Index
16-4
Description
Com radio is
in overtemp or
undervoltage mode
and transmitting power
has been reduced to
prevent damage to the
com radio. Radio range
will be reduced.
Com radio is locked to
121.5 MHz.
TAWS is inoperative
due to a configuration
problem with the GTN.
This message will be
accompanied by a TER
FAIL annunciation.
The GTN cannot
communicate with its
configuration module.
The GTN may still have
a valid configuration.
Backlight brightness
has been reduced
due to high display
temperatures. The
backlight level will
remain high enough to
be visible in daylight
conditions.
Garmin GTN 625/635/650 Pilot's Guide
Action
Decrease length of com
transmissions, decrease cabin
temperature and increase cabin
airflow (especially near the GTN).
Check aircraft voltage and reduce
electrical load as necessary.
Contact dealer for service if this
message persists.
The external com remote transfer
(COM RMT XFR) switch has been
held and the com radio is tuned to
121.5. To exit this mode, hold the
com remote transfer (COM RMT
XFR) switch for two seconds.
Contact dealer for service.
Contact dealer for service.
Decrease cabin temperature and
increase cabin airflow (especially
near the GTN). Contact dealer for
service if this message persists.
190-01004-03 Rev. F