User Manual
Table Of Contents
- About your Bose® A20® Aviation Headset
- Components
- Preparing the Headset for Use11
- The battery compartment
- Connecting the headset to the aircraft
- Wearing and adjusting the headset
- Using the control module
- Primary and secondary audio sources
- AUX audio sources (wired)
- Bluetooth® audio sources (wireless)
- Using the headset with a Bluetooth® device
- Pairing the first device
- Pairing another device
- Switching between connected devices
- Bluetooth multi-function button
- Making and answering calls
- Reconnecting to a previously connected device
- Recovering a lost connection
- Disconnecting a Bluetooth device
- Clearing the headset pairing list
- Controlling Bluetooth volume
- Using the headset with a Bluetooth® device
- Secondary audio modes
- Cleaning the headset
- Instructions for continued airworthiness
- Managing multiple secondary sources
- Ordering parts and accessories
- Contact information
- Limited warranty
- Locating the headset serial number
- Mounting the aircraft panel connector
- Replacing parts
- Microphone windscreen
6 - English
Contents
Recovering a lost connection ...............................................................................24
Disconnecting a Bluetooth device ......................................................................24
Clearing the headset pairing list .........................................................................24
Controlling Bluetooth volume ............................................................................. 24
Secondary audio modes ...................................................................................................... 25
Secondary Audio Mode selector ................................................................................ 25
Managing multiple secondary sources ....................................................................26
Setting the Priority (BT-AUX) switch .................................................................. 26
Headset Care and Maintenance ........................................................ 27
Instructions for continued airworthiness ........................................................................ 27
Cleaning the headset ........................................................................................................... 27
General cleaning ........................................................................................................... 27
Headset earcup openings ........................................................................................... 27
Microphone windscreen .............................................................................................. 28
Earcup inner screen .....................................................................................................28
Headband cushion .......................................................................................................28
Replacing parts .....................................................................................................................28
Microphone windscreen replacement ...................................................................... 28
Ear cushion replacement ............................................................................................29
Battery replacement ....................................................................................................29
Headband cushion replacement ...............................................................................30
Microphone assembly or terminator cover replacement .....................................30
Storage ...........................................................................................................................30
Troubleshooting .................................................................................. 31
Installation ........................................................................................... 36
Mounting the aircraft panel connector ............................................................................36
Technical Information ........................................................................ 37
Mono connection diagram .......................................................................................... 37
Stereo connection diagram ........................................................................................ 37
Helicopter (U174) connection diagram .....................................................................38
Details on making the connections ..........................................................................38
FAA Technical Standards Order .................................................................................40
Warranty and Service Information ................................................... 41
Locating the headset serial number ..................................................................................41
Limited warranty ...................................................................................................................41
Contact information .............................................................................................................42
Ordering parts and accessories .........................................................................................43