Messages - Garmin GTR 225 Pilot's Manual

5.1 Messages

When a message has been issued by the unit, the message will be shown on
the display. After viewing the messages, press the ENT key to acknowledge the
message and return to the previously viewed page. An acknowledged message
will not be redisplayed even if the condition persists. Messages provide an aid to
troubleshooting system operation.
Message
COM RADIO -
COM radio needs
service.
COM RADIO -
COM radio may be
inoperative.
COM RADIO -
COM overtemp
or undervoltage.
Reducing transmitter
power.
190-01182-00 Rev. B
Display of Message
Messages
Description
The COM radio is
reporting that it needs
service. The COM radio
may continue to function.
The COM radio is not
communicating properly
with the system.
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.
Garmin GTR 225/225A/225B Pilot's Guide
Message
Action
Cycle the power to the COM
radio. Contact dealer for
service.
Press and hold the volume
knob or the external COM
remote transfer (COM RMT
XFR) switch, if installed – this
will force the COM radio to
121.5 MHz. Contact dealer for
service.
Decrease length of COM
transmissions, decrease cabin
temperature and increase
cabin airflow (especially
near the GTR). Check aircraft
voltage and reduce electrical
load as necessary. Contact
dealer for service if this
message persists.
5-3