Check Mic key input, It can be enabled | Garmin 225B, 225A manual

Problem

Possible Cause

Action

GTR 225 does not power on	No power to the	Check power connections,
	GTR 225	breakers, and main
		avionics switch
	Faulty electrical	Contact your dealer to
	wiring or connection	perform electrical system
		test
GTR 225 does not transmit	No power to Com	Check power connections
	Mic key connection	Check Mic key input
		connection
Intercom doesn’t function	It can be enabled	Check connections
	or disabled via a
	remote mounted
	switch or via the
	menu.
	No voice activation,	Check ICS page, Intercom
	or if must talk too	On/Off, Adjust Intercom
	loud
Can’t change active frequency	Com Radio not	If in Lock Out mode,
	communicating. The	press the external Com
	radio may also be in	FLIP/FLOP key for two
	lockout mode. In this	seconds to return to
	case the radio would	normal operation or cycle
	be tuned to 121.50	the avionics power. If the
	and the active freq	condition persists, contact
	would not be able to	dealer.
	be changed.
Display shows	Corrupted system	Contact factory
“Com Radio Needs Service” at	calibration
start-up	parameters

Table 4-1 Troubleshooting

4-2

Garmin GTR 225/225A/225B Pilot’s Guide

190-01182-00 Rev. A

Image 40

Garmin 225B, 225A manual Check Mic key input, It can be enabled, Or disabled via a Remote mounted, If in Lock Out mode

Contents

GTR 225/225A/225B November Limited Warranty Garmin GTR 225/225A/225B Pilot’s Guide Operation Product Registration and Support US Toll Free Canada Toll Free Contents Index Index-1 Product Description Photo Sensor Power/Com Volume/Squelch Knob Pilot Controls Tuning LARGE/SMALL Concentric Cursor Knobs FLIP/FLOP KeyCom Key MEM Key Func Function Key USB PortMON Monitor Key Power On Com RadioSelecting a Com Frequency Selected Frequency Monitoring the Standby Com Channel Saving a Com ChannelAfter selecting the desired characters, press ENT Monitor Annunciation Standby Frequency Being Monitored After making a selection, press ENT Selected Wpt Type Emergency Channel Com Database Look-UpActive and Standby frequencies Stuck Mic Frequency Database Reverse Look-UpRemote Frequency Selection Control Airport Identifier Shown For Freqs In Database This page intentionally left blank SYS Config Com Spacing Functions Description Com Frequencies Press the Func key to access the FunctionsRecent Com Frequencies Com User Frequencies Press the CLR key to delete this User frequencySelected Frequency Select Wpt Name Select Wpt Type Press ENT Key To Delete Selected Freq Frequencies. Press ENT Select User FreqsSelect User Freq Value Select User Wpt Name Com Database Frequencies Press ENT Key To Set Selected Freq As StandbyIdentifier Selected Freq As Active Com Nearest Airports APT Com Nearest Area Control Center ACC FrequenciesTurn the Small knob to display the available ACCs Turn Small Knob To Scroll Through Available Airports Com Nearest Flight Service Station FSS Frequencies 13 Com Nearest FSS Frequencies Com Nearest Weather WX Frequencies 14 Com Nearest Weather Frequencies ICS Configuration Adjust Intercom Aux Audio Turn the Small knob to turn the Aux Audio On or Off Intercom On/Off Speaker On/OffIntercom On/Off function. Then, press the ENT key Speaker On/Off function. Then, press ENT Com Spacing System ConfigurationTurn the Small Knob to Select the Channel Spacing Brightness Display BrightnessSelect the Offset Value Display Contrast Database InfoDisplay Contrast function. Then, press the ENT key Database Version function. Then, press the ENT key Load Database function. Then, press the ENT key Load DatabaseUSB Port USB Cable USB Memory Device Software Version Serial NumberPress the Func key to return to the main menu Serial Number function. Then, press ENT Timers Setting Up the Count Down Timer Setting Up the Count Up Timer Viewing Timers in the Com DisplayPressing CLR and then ENT will reset the displayed Timer Pressing ENT twice will stop the displayed Timer Count Down Timer Value Highlighted When Counting Up 36 Count Down Timer Value Now Counting Up This page intentionally left blank Troubleshooting Appendix It can be enabled Or disabled via a Remote mountedIf in Lock Out mode Check Mic key input Updating the Frequency Database Messages Power has been Re-apply power to the unit Switch has beenAll installations Radio will no longer Transmit Installations This input will now Index Stuck mic 2-5 Support