Garmin 255A manual Turn the Small knob to turn the Aux Audio On or Off

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3.4.2Aux Audio

The Aux function allows you to turn Aux Audio On/Off and set the volume value.

1.Press FUNC to access the Functions. Turn the LARGE knob to select the ICS Function. Turn the SMALL knob to view the Aux Volume function. Then, press the ENT key.

Figure 3-29 Select the Aux Audio Function

2.Turn the SMALL knob to turn the Aux Audio On or Off.

3.Turn the LARGE knob to select the Aux Volume. Turn the SMALL knob to set the value. Then, press the ENT key.

Turn Small Knob To Turn Aux On/Off

Turn LARGE And

Then SMALL Knob To

Adjust Aux Volume

Press the ENT Key to Save the Displayed Value

Press the CLR Key To Revert to the Previous Value

Figure 3-30 Adjust Aux Audio

4.Press the CLR key to revert to the previous Volume value and then repeat step 3 to select a new value.

3-16

Garmin GNC 255A/255B Pilot’s Guide

190-01182-01 Rev. A

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Contents GNC 255A/255B November Limited Warranty 190-01182-01 Rev. a Iii Operation Product Registration and Support US Toll Free Canada Toll FreeRecord of Revisions Contents 2.1 2.22.3 Index Index-1 This page intentionally left blank Getting Started Product DescriptionPower/Com Volume/Squelch Knob Nav Volume/ID KnobPilot Controls 5 C/N Com/Nav Key Tuning LARGE/SMALL Concentric Cursor KnobsFLIP/FLOP Key OBS KeyUSB Port Func Function KeyMON Monitor Key Power On Com RadioSelecting a Com Frequency Monitoring the Standby Com Channel Saving a Com ChannelAfter selecting the desired characters, press ENT Description After making a selection, press ENTCom Database Look-Up Frequency Database Reverse Look-UpEmergency Channel Stuck MicRemote Frequency Selection Control Nav Radio Selecting a Nav FrequencySaving a Nav Channel Listening to the Nav Audio Channel 01-36OBS Mode 14 CDI DisplayDistance/Speed/Time DST Display 15 DST Data DisplayThis page intentionally left blank Functions Functions DescriptionCom Frequencies Recent Com FrequenciesTurn the Small knob to select an Entry Com User Frequencies Press the CLR key to delete this User frequencyEditing a Com User Frequency Frequencies. Press ENTCom Database Frequencies Com Database FrequenciesCom Nearest Airports APT Nearest APT function. Then, press ENTCom Nearest Area Control Center ACC Frequencies Turn Small Knob To Scroll Through Available FrequenciesCom Nearest Flight Service Station FSS Frequencies 13 Com Nearest FSS FrequenciesCom Nearest Weather WX Frequencies 14 Com Nearest Weather FrequenciesNav Frequencies Recent Nav FrequenciesNav User Frequencies Press the ENT key to delete the displayed frequencyEditing a Nav User Frequency Nav Database Frequencies 21 Nav Database FrequenciesWhen duplicate identifiers are found, press ENT Nav Nearest VORTurn the Small knob to display the available VORs ICS ConfigurationAdjust Intercom Functions displayAux Audio Turn the Small knob to turn the Aux Audio On or OffIntercom On/Off function. Then, press the ENT key Intercom On/OffSpeaker On/Off Speaker On/Off function. Then, press ENTSystem Configuration Com SpacingDisplay Brightness 34 Set Display BrightnessDisplay Contrast function. Then, press the ENT key Display ContrastDatabase Info Database Version function. Then, press the ENT keyLoad Database Load Database function. Then, press the ENT keySoftware Version function. Then, press the ENT key Software VersionSerial Number Press the Func key to return to the main menuTimers Setting Up the Count Down TimerTo select a starting timer value Pressing CLR and then ENT will reset the displayed Timer Setting Up the Count Up TimerViewing Timers in the Com Display Pressing ENT twice will stop the displayed Timer48 Count Down Timer Value Now Counting Up This page intentionally left blank Troubleshooting AppendixIf in Lock Out mode It can be enabledOr disabled via a Remote mounted Calibration error Recalibrate resolverUpdating the Frequency Database Messages Verify glideslope deviation Power has been Re-apply power to the unitSwitch has been Property withRemote com All installationsInstallations Been in pressedNav radio is Contact dealer for service Not communicatingProperty with System This page intentionally left blank Index Remote frequency control 2-5 Reverse look-up 2-4 Revisions