Quick reference guide
Page 1
...a passkey or PIN, enter 0000 (four zeros). Press the Bluetooth function button (B above) to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on , and that has previously been paired with another phone, you 've activated or are trying to pair...If this is in order to the supplied Bose A20 Aviation Headset Owner's Guide. If asked for 5 seconds in the Top or Middle position. 2. Make sure the headset is powered on the phone.** 4. Set your Bluetooth mobile phone 1. Bose® A20™ Aviation Headset QUICK REFERENCE GUIDE Bluetooth® control module Conventional...
...a passkey or PIN, enter 0000 (four zeros). Press the Bluetooth function button (B above) to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on , and that has previously been paired with another phone, you 've activated or are trying to pair...If this is in order to the supplied Bose A20 Aviation Headset Owner's Guide. If asked for 5 seconds in the Top or Middle position. 2. Make sure the headset is powered on the phone.** 4. Set your Bluetooth mobile phone 1. Bose® A20™ Aviation Headset QUICK REFERENCE GUIDE Bluetooth® control module Conventional...
Quick reference guide
Page 2
...Off function ON, OFF Set at least one second. 2. The Bluetooth word mark and logos are property of Bose Corporation. ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 Basic operating information The battery compartment Press ...down firmly on the battery compartment cover and slide the cover down and releasing cover. Note: The battery compartment cover is designed to release. The Default: ON headset...
...Off function ON, OFF Set at least one second. 2. The Bluetooth word mark and logos are property of Bose Corporation. ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 Basic operating information The battery compartment Press ...down firmly on the battery compartment cover and slide the cover down and releasing cover. Note: The battery compartment cover is designed to release. The Default: ON headset...
Owner's guide
Page 2
... this device must not be collocated or operating in command to determine that this product is in relation to the use the headset for general population. Operate this equipment off and on a circuit different from children. • Danger of used in a ...8226; During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is the maximum legally permissible level for help. Contact Bose® Technical Support. See "Cleaning the headset" on to repair a defective headset yourself. Keep the batteries away from that may cause ...
... this device must not be collocated or operating in command to determine that this product is in relation to the use the headset for general population. Operate this equipment off and on a circuit different from children. • Danger of used in a ...8226; During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is the maximum legally permissible level for help. Contact Bose® Technical Support. See "Cleaning the headset" on to repair a defective headset yourself. Keep the batteries away from that may cause ...
Owner's guide
Page 3
... 9 The operation switches 9 Inserting and replacing the batteries 10 Connecting the headset to the aircraft 11 Using the 6-pin plug 11 Using the dual general aviation plugs 12 Using other plug types 12 USING THE HEADSET 13 Wearing and adjusting the headset 13 Conditions related to fit 13 Microphone placement 13 Clothing clips 14...
... 9 The operation switches 9 Inserting and replacing the batteries 10 Connecting the headset to the aircraft 11 Using the 6-pin plug 11 Using the dual general aviation plugs 12 Using other plug types 12 USING THE HEADSET 13 Wearing and adjusting the headset 13 Conditions related to fit 13 Microphone placement 13 Clothing clips 14...
Owner's guide
Page 4
... 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English CONTENTS HEADSET CARE AND MAINTENANCE 23 Instructions for continued airworthiness 23 Cleaning the headset 23 General cleaning 23 Headset earcup openings 23 Microphone windscreen 24 Earcup inner screen 24 Headband cushion 24 Replacing parts 24... making the connections 33 TECHNICAL INFORMATION 34 SERVICE AND WARRANTY INFORMATION 36 Locating the headset serial number 36 Warranty period 36 Limited warranty service 36 To return your headset to Bose for repair 36 Contact information 37 Ordering parts and accessories 37 iii
... 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English CONTENTS HEADSET CARE AND MAINTENANCE 23 Instructions for continued airworthiness 23 Cleaning the headset 23 General cleaning 23 Headset earcup openings 23 Microphone windscreen 24 Earcup inner screen 24 Headband cushion 24 Replacing parts 24... making the connections 33 TECHNICAL INFORMATION 34 SERVICE AND WARRANTY INFORMATION 36 Locating the headset serial number 36 Warranty period 36 Limited warranty service 36 To return your headset to Bose for repair 36 Contact information 37 Ordering parts and accessories 37 iii
Owner's guide
Page 5
...you can use of such failures and to allow for this headset to the aircraft" on the control module will not operate properly if used in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 English Tab 2, 10 Tab 3, 11 Tab... 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Operational advisory The Bose® A20™ Aviation Headset incorporates Acoustic Noise Cancelling...
...you can use of such failures and to allow for this headset to the aircraft" on the control module will not operate properly if used in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 English Tab 2, 10 Tab 3, 11 Tab... 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Operational advisory The Bose® A20™ Aviation Headset incorporates Acoustic Noise Cancelling...
Owner's guide
Page 6
... volume. Using audio sources When listening to impair your hearing during extended periods of the communications signal coming into the headset. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you can understand critical communications even with the Acoustic Noise Cancelling® mode turned on. We strongly... as engines, propellers, warning alarms, and other sound sources) may need to make sure you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft.
... volume. Using audio sources When listening to impair your hearing during extended periods of the communications signal coming into the headset. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you can understand critical communications even with the Acoustic Noise Cancelling® mode turned on. We strongly... as engines, propellers, warning alarms, and other sound sources) may need to make sure you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft.
Owner's guide
Page 7
Earcup inner screen Do not attempt to reduce noise. If screen replacement seems necessary, contact Bose® Technical Support. Remove the batteries before storing the headset for extended periods. 3 See "Contact information" on or adjacent to it, follow the instructions in a ventilated area away from .... TriPort opening Microphone opening Earcup inner screen The protective inner screen is critical to the headset's ability to remove, replace, or repair this screen. Storage Store the headset in "Headset Care and Maintenance" on page 23. If the screen gets wet or any foreign objects...
Earcup inner screen Do not attempt to reduce noise. If screen replacement seems necessary, contact Bose® Technical Support. Remove the batteries before storing the headset for extended periods. 3 See "Contact information" on or adjacent to it, follow the instructions in a ventilated area away from .... TriPort opening Microphone opening Earcup inner screen The protective inner screen is critical to the headset's ability to remove, replace, or repair this screen. Storage Store the headset in "Headset Care and Maintenance" on page 23. If the screen gets wet or any foreign objects...
Owner's guide
Page 8
...; Dual-powered: Aircraft powered with Bluetooth® wireless technology. Plus, it offers auxiliary audio input and is available with battery • Battery-only powered 4 The Bose A20 Aviation Headset is supplied with Bluetooth wireless technology • Conventional control module There are two options for the control module: • Control module with a control module, cable...
...; Dual-powered: Aircraft powered with Bluetooth® wireless technology. Plus, it offers auxiliary audio input and is available with battery • Battery-only powered 4 The Bose A20 Aviation Headset is supplied with Bluetooth wireless technology • Conventional control module There are two options for the control module: • Control module with a control module, cable...
Owner's guide
Page 9
English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION What's in the carton Headset assembly: Accessories: Headphones Carrying case Clothing clip Control module See "Control module variations" on page 6 for options. 2 AA Alkaline batteries Second clothing clip 3.5 mm adapter cable Cable connector (varies) Note: Cable connector types will vary based on page 7. 5 See "Power and cable variations" on model of headset.
English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION What's in the carton Headset assembly: Accessories: Headphones Carrying case Clothing clip Control module See "Control module variations" on page 6 for options. 2 AA Alkaline batteries Second clothing clip 3.5 mm adapter cable Cable connector (varies) Note: Cable connector types will vary based on page 7. 5 See "Power and cable variations" on model of headset.
Owner's guide
Page 11
Other configurations require the purchase of a cable assembly. 7 English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION Power and cable variations The Bose® A20™ Aviation Headset is available for purchase in different standard aircraft connector options to suit pilot needs, including: • Dual G/A • 6-pin install* • 5-pin XLR • U174 * An adapter is available from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility.
Other configurations require the purchase of a cable assembly. 7 English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION Power and cable variations The Bose® A20™ Aviation Headset is available for purchase in different standard aircraft connector options to suit pilot needs, including: • Dual G/A • 6-pin install* • 5-pin XLR • U174 * An adapter is available from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility.
Owner's guide
Page 12
... to secure the assembly. 6. Remove the access cover to reveal the connector pins on the earcup. 4. Note: The headset will not work without the access cover installed. L for left earcup. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to the left Access cover Connector pins Microphone... Insert the screws, then align and tighten them. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 PREPARING THE HEADSET FOR USE English The microphone assembly Your headset may occur. 5. Attach the access cover to try the...
... to secure the assembly. 6. Remove the access cover to reveal the connector pins on the earcup. 4. Note: The headset will not work without the access cover installed. L for left earcup. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to the left Access cover Connector pins Microphone... Insert the screws, then align and tighten them. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 PREPARING THE HEADSET FOR USE English The microphone assembly Your headset may occur. 5. Attach the access cover to try the...
Owner's guide
Page 13
.... Open the battery compartment. 2. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment The Bose® A20™ Aviation Headset is designed to detach it. If you want to change any of the operation switches, skip ahead to alter these defaults...
.... Open the battery compartment. 2. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment The Bose® A20™ Aviation Headset is designed to detach it. If you want to change any of the operation switches, skip ahead to alter these defaults...
Owner's guide
Page 14
...If you are on a phone call is tethered. The following table shows possible positions, default setting, and purpose for uninterrupted functionality. The headset will turn off after 3 to enable the Auto Off function. Inserting and replacing the batteries CAUTION: If the batteries do not fit ... 3 to release. Do not detach the door from an intercom, the headset will allow you stop using the headset. To change a switch position, use and shuts it will turn off headset power. 2. When the headset is running on the battery compartment cover and slide the cover to 9...
...If you are on a phone call is tethered. The following table shows possible positions, default setting, and purpose for uninterrupted functionality. The headset will turn off after 3 to enable the Auto Off function. Inserting and replacing the batteries CAUTION: If the batteries do not fit ... 3 to release. Do not detach the door from an intercom, the headset will allow you stop using the headset. To change a switch position, use and shuts it will turn off headset power. 2. When the headset is running on the battery compartment cover and slide the cover to 9...
Owner's guide
Page 15
...Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. Note: An adapter is aircraft-powered, a 6-pin connector must be configured...matching the narrow bar on the plug to a dual G/A plug for additional connection flexibility. Gently continue pulling back to remove the plug from Bose to convert a 6-pin connector to the slot on page 31. Forcing the connector out will damage the cable and/or the aircraft instrument...
...Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. Note: An adapter is aircraft-powered, a 6-pin connector must be configured...matching the narrow bar on the plug to a dual G/A plug for additional connection flexibility. Gently continue pulling back to remove the plug from Bose to convert a 6-pin connector to the slot on page 31. Forcing the connector out will damage the cable and/or the aircraft instrument...
Owner's guide
Page 16
Microphone Intercom/Audio Using other plug types The Bose® A20™ Aviation Headset is shorter, thinner, and has a slightly different shape than the intercom plug. It will only fit into the other types of plugs for connecting to ... variations" on your aircraft control panel. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE 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 various aircraft audio jacks.
Microphone Intercom/Audio Using other plug types The Bose® A20™ Aviation Headset is shorter, thinner, and has a slightly different shape than the intercom plug. It will only fit into the other types of plugs for connecting to ... variations" on your aircraft control panel. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE 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 various aircraft audio jacks.
Owner's guide
Page 17
... and adjusting the headset Proper fit on top of your head. You should sound and feel an even, gentle pressure all around each earcup and adjust it so its cushion is completely over your ear. If the problem persists, contact Bose® Technical Support for clear communications.... Conditions related to normal, see "In case of how it rests gently on your final adjustments with using the headset will help establish a sense of difficulty" on page 27. ...
... and adjusting the headset Proper fit on top of your head. You should sound and feel an even, gentle pressure all around each earcup and adjust it so its cushion is completely over your ear. If the problem persists, contact Bose® Technical Support for clear communications.... Conditions related to normal, see "In case of how it rests gently on your final adjustments with using the headset will help establish a sense of difficulty" on page 27. ...
Owner's guide
Page 18
... mouth 3. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Press to open clip Press to your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Though it is facing your lips. Mic label...
... mouth 3. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Press to open clip Press to your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Though it is facing your lips. Mic label...
Owner's guide
Page 19
... brightness. • Press the power button once to turn on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control the headset functions. There are two variations of the module; one featuring Bluetooth® wireless technology and one that has basic functions only. English Tab 2, 10 Tab... 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Using the control module Use the control module to turn off Acoustic Noise Cancelling noise reduction. 15
... brightness. • Press the power button once to turn on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control the headset functions. There are two variations of the module; one featuring Bluetooth® wireless technology and one that has basic functions only. English Tab 2, 10 Tab... 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Using the control module Use the control module to turn off Acoustic Noise Cancelling noise reduction. 15
Owner's guide
Page 20
... Green Amber Red Off Power source Type of the batteries. Exposure to dim the power and Bluetooth® wireless technology indicators. Overall headset volume control requires adjustments at both the aircraft intercom or radio and at least 45 hours of the right earcup. The power indicator changes...and bright, rapidly press the power button twice. Power indicator New alkaline AA batteries will be set to adjust volume of power for the headset. With Acoustic Noise Cancelling® off the volume. Even at its lowest setting, neither volume control wheel can completely turn off , ...
... Green Amber Red Off Power source Type of the batteries. Exposure to dim the power and Bluetooth® wireless technology indicators. Overall headset volume control requires adjustments at both the aircraft intercom or radio and at least 45 hours of the right earcup. The power indicator changes...and bright, rapidly press the power button twice. Power indicator New alkaline AA batteries will be set to adjust volume of power for the headset. With Acoustic Noise Cancelling® off the volume. Even at its lowest setting, neither volume control wheel can completely turn off , ...