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Bose A20 manual Control module variations

Models: A20

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INTRODUCTION

Control module variations

If you opted for Bluetooth® wireless technology, you received the control module featuring Bluetooth technology. If not, you received the conventional control module.

Bluetooth control module

Conventional control module

	Left/Right volume controls*
	Power indicator
Bluetooth	Power button
Bluetooth
indicator
Bluetooth	Bluetooth
function button	Bluetooth
function button	Volume Up button
	Volume Up button
Multifunction		Audio Priority
switch:	Bluetooth	switch:
Top	Volume Down button	Top
Intercom		Intercom
prioritized	Auxiliary (AUX)	prioritized
Middle	Auxiliary (AUX)	Middle
Middle	audio input	Middle
Intercom	audio input	Intercom
Intercom		Intercom
mixed		mixed
Bottom		Bottom
Intercom		Intercom
only		only

*Control the intercom volume

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Bose A20 manual Control module variations

Contents

A20 AVIATION HEADSET Owner’s GuideSAFETY INFORMATION Important Safety InstructionsWarning Choking ADVISORIES CONTENTSUSING THE HEADSET INTRODUCTIONINSTALLATION HEADSET CARE AND MAINTENANCETROUBLESHOOTING SERVICE AND WARRANTY INFORMATIONOperational advisory ADVISORIESUsing audio sources Hearing safetyVolume control Recognizing aircraft soundsTriPort opening Microphone opening Headset earcup requirementsEarcup inner screen Earcup inner screenWhat’s included INTRODUCTIONHeadset assembly What’s in the cartonAccessories Control module variations Dual powered options Power and cable variationsBattery powered options INTRODUCTIONAttaching the microphone assembly The microphone assemblyPREPARING THE HEADSET FOR USE The operation switches The battery compartmentOpening the battery compartment To change the operation switchesAuto Off functionality Inserting and replacing the batteriesTo insert or replace the batteries To connect the headset Connecting the headset to the aircraftUsing the 6-pinplug To disconnect the headsetUsing other plug types Using the dual general aviation plugsMicrophone Intercom/Audio Microphone placement Wearing and adjusting the headsetUSING THE HEADSET Conditions related to fitMic is too far away Mic label is not facing mouth Clothing clipsMic label Mic is 1/2 inch from mouth Press to open clipUsing the control module Power buttonPower indicator Volume controlAuxiliary AUX audio input Audio priorityFunction Multifunction/Audio priority switchPosition OperationUsing the headset with a Bluetooth-enabledphone Pairing the headset with your phoneRecovering a lost connection Bluetooth indicator light statusReconnecting to a previously connected phone Disconnecting a Bluetooth technology-enabledphoneBluetooth volume control To clear pairing device history from the headsetTo answer a call Making and answering callsTo make a call To end a callHEADSET CARE AND MAINTENANCE Cleaning the headsetGeneral cleaning Instructions for continued airworthinessMicrophone windscreen Replacing partsMicrophone windscreen replacement Headband cushionBattery replacement Ear cushion replacementReplacing the ear cushions Microphone assembly or access cover replacement Headband cushion replacementStorage Noise Reduction TROUBLESHOOTINGIn case of difficulty CommunicationsProblem AudioProblem TROUBLESHOOTINGProblem Auxiliary audio inputProblem TROUBLESHOOTINGProblem Bluetooth wireless technologyAuto off ProblemMounting the aircraft panel connector INSTALLATIONStereo connection diagram Mono connection diagramINSTALLATION INSTALLATION Details on making the connectionsHelicopter U174 connection diagram Pin numberTECHNICAL INFORMATION Condition FAA Technical Standards OrderCategory SERVICE AND WARRANTY INFORMATION WarrantyLimited warranty service Locating the headset serial numberOrdering parts and accessories Contact informationSERVICE AND WARRANTY INFORMATION Page 2012 Bose Corporation, The Mountain Framingham, MA 01701-9168USA AM325453 Rev.07