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Bose A20 manual What’s in the carton, Headset assembly, Accessories

Models: A20

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INTRODUCTION

What’s in the carton

Headset assembly:

Headphones

Clothing clip

Control module

See “Control module variations” on page 6 for options.

Second clothing clip

Cable connector (varies)

Accessories:

Carrying case

2 AA alkaline batteries*

3.5 mm adapter cable

Note: Cable connector types will vary based on model of headset. See “Power and cable variations” on page 7.

Note: *Replace batteries with alkaline batteries only. Do not use any other battery chemistries.

Page 9

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Bose A20 manual What’s in the carton, Headset assembly, Accessories

Contents

Owner’s Guide A20 AVIATION HEADSETImportant Safety Instructions SAFETY INFORMATIONWarning Choking USING THE HEADSET CONTENTSADVISORIES INTRODUCTIONTROUBLESHOOTING HEADSET CARE AND MAINTENANCEINSTALLATION SERVICE AND WARRANTY INFORMATIONADVISORIES Operational advisoryVolume control Hearing safetyUsing audio sources Recognizing aircraft soundsEarcup inner screen Headset earcup requirementsTriPort opening Microphone opening Earcup inner screenINTRODUCTION What’s includedWhat’s in the carton Headset assemblyAccessories Control module variations Battery powered options Power and cable variationsDual powered options INTRODUCTIONThe microphone assembly Attaching the microphone assemblyPREPARING THE HEADSET FOR USE Opening the battery compartment The battery compartmentThe operation switches To change the operation switchesInserting and replacing the batteries Auto Off functionalityTo insert or replace the batteries Using the 6-pinplug Connecting the headset to the aircraftTo connect the headset To disconnect the headsetUsing the dual general aviation plugs Using other plug typesMicrophone Intercom/Audio USING THE HEADSET Wearing and adjusting the headsetMicrophone placement Conditions related to fitMic label Mic is 1/2 inch from mouth Clothing clipsMic is too far away Mic label is not facing mouth Press to open clipPower button Using the control moduleVolume control Power indicatorAudio priority Auxiliary AUX audio inputPosition Multifunction/Audio priority switchFunction OperationPairing the headset with your phone Using the headset with a Bluetooth-enabledphoneReconnecting to a previously connected phone Bluetooth indicator light statusRecovering a lost connection Disconnecting a Bluetooth technology-enabledphoneTo clear pairing device history from the headset Bluetooth volume controlTo make a call Making and answering callsTo answer a call To end a callGeneral cleaning Cleaning the headsetHEADSET CARE AND MAINTENANCE Instructions for continued airworthinessMicrophone windscreen replacement Replacing partsMicrophone windscreen Headband cushionEar cushion replacement Battery replacementReplacing the ear cushions Headband cushion replacement Microphone assembly or access cover replacementStorage In case of difficulty TROUBLESHOOTINGNoise Reduction CommunicationsProblem AudioProblem TROUBLESHOOTINGProblem Auxiliary audio inputProblem TROUBLESHOOTINGAuto off Bluetooth wireless technologyProblem ProblemINSTALLATION Mounting the aircraft panel connectorMono connection diagram Stereo connection diagramINSTALLATION Helicopter U174 connection diagram Details on making the connectionsINSTALLATION Pin numberTECHNICAL INFORMATION FAA Technical Standards Order ConditionCategory Limited warranty service WarrantySERVICE AND WARRANTY INFORMATION Locating the headset serial numberContact information Ordering parts and accessoriesSERVICE AND WARRANTY INFORMATION Page Framingham, MA 01701-9168USA AM325453 Rev.07 2012 Bose Corporation, The Mountain