Bose A20 Aviation 2015-present Owner's guide - Page 5

Contents Recovering a lost connection 23 Disconnecting a Bluetooth® device 23 Clearing the headset pairing list 23 Controlling Bluetooth® volume 23 Secondary audio modes...24 Secondary Audio Mode selector 24 Managing multiple secondary sources 25 Setting the Priority (BT-AUX) switch 25 Headset care and maintenance 26 Instructions for continued airworthiness 26 Cleaning the headset...26 General cleaning...26 Headset earcup openings 26 Microphone windscreen 27 Earcup inner screen...27 Headband cushion...27 Replacing parts...27 Microphone windscreen replacement 27 Ear cushion replacement 28 Battery replacement...28 Headband cushion replacement 29 Microphone assembly or terminator cover replacement 29 Storage...29 Troubleshooting 30 Installation 35 Mounting the aircraft panel connector 35 Technical information 36 Mono connection diagram 36 Stereo connection diagram 36 Helicopter (U174) connection diagram 37 Details on making the connections 37 FAA Technical Standards Order 39 Warranty and service information 40 Locating the headset serial number 40 Limited warranty service...40 Contact information...41 Ordering parts and accessories 41 English - 5