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
Preparing the Headset for Use
English - 15
To disconnect the headset
1. Pull back on the sleeve near the end of the 6-pin plug.
2. Gently continue pulling back to remove the plug from the connector.
Caution: Do not pull the connector out without first pulling back the sleeve.
Forcing the connector out will damage the cable and/or the aircraft instru-
ment panel.
Pull sleeve back, then pull plug out
Sleeve
Using the dual general aviation plugs
The most common battery powered (only) version of the headset has two general
aviation (G/A) plugs that connect to the aircraft audio. Although the plugs look
similar, the microphone plug is shorter, thinner, and has a slightly different shape
than the intercom plug.
Insert the thicker intercom plug in first. It will only fit into one of the jacks.
Then insert the thinner microphone plug into the other jack.
Microphone
Intercom/Audio
Using other plug types
The headset is also available with other types of plugs for connecting to various
aircraft audio jacks. These single-plug connectors should be inserted into the ap-
propriate jack on your aircraft control panel. Refer to “Power and cable variations”
on page 10.