Bose A20 User Manual

English - 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

Bose A20 Specifications

General

Type	Aviation Headset
Connectivity	Wired
Battery Life	Up to 45 hours
Warranty	5 years
Noise Reduction	Active Noise Reduction
Bluetooth	Yes
Weight	12 oz (340 g)
Compatibility	General Aviation Aircraft
Cable Length	Varies with connector type
Microphone	Electret Noise-Cancelling