Quick reference guide
Page 1
... a mobile phone, complete use instructions, and important safety information, refer to the supplied Bose A20 Aviation Headset Owner's Guide. Make sure the headset is in order to put the headset into "discoverable" mode. 3. Press the Bluetooth function button (B above ) is the ... a headset that has previously been paired with your phone to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on , and that the headset is powered on the phone.** 4. This indicates that the multifunction switch (A above ) to activate Bluetooth. Bose® A20™ Aviation Headset QUICK REFERENCE...
... a mobile phone, complete use instructions, and important safety information, refer to the supplied Bose A20 Aviation Headset Owner's Guide. Make sure the headset is in order to put the headset into "discoverable" mode. 3. Press the Bluetooth function button (B above ) is the ... a headset that has previously been paired with your phone to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on , and that the headset is powered on the phone.** 4. This indicates that the multifunction switch (A above ) to activate Bluetooth. Bose® A20™ Aviation Headset QUICK REFERENCE...
Quick reference guide
Page 2
... Default: MONO Power indicator The power indicator changes color to indicate the power status, as follows: Indicator color Power source Type of Bose Corporation. ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 To (Auto Off enabled) disable Auto Off, set the switch... to enable the Auto Off function. Auto Off function ON, OFF Set at least one second. 2. The Default: ON headset will not turn ...
... Default: MONO Power indicator The power indicator changes color to indicate the power status, as follows: Indicator color Power source Type of Bose Corporation. ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 To (Auto Off enabled) disable Auto Off, set the switch... to enable the Auto Off function. Auto Off function ON, OFF Set at least one second. 2. The Default: ON headset will not turn ...
Owner's guide
Page 2
...noise exposure during the working day. Refer to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is no guarantee that may not cause harmful interference, and (2) this equipment. i However, there is capable of ... requirements and other antenna or transmitter. Do not recharge, disassemble, heat, or incinerate. Exposure to repair a defective headset yourself. See "Cleaning the headset" on page 37. • Do not immerse the headphones in water or any interference received, including interference that ...
...noise exposure during the working day. Refer to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is no guarantee that may not cause harmful interference, and (2) this equipment. i However, there is capable of ... requirements and other antenna or transmitter. Do not recharge, disassemble, heat, or incinerate. Exposure to repair a defective headset yourself. See "Cleaning the headset" on page 37. • Do not immerse the headphones in water or any interference received, including interference that ...
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
... in the passive mode when the power is off (power indicator is aircraft powered, connect the headset to the aircraft power sources only as described in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 Symptoms of failure may include loud tones, distortion, and loss of such failures...
... in the passive mode when the power is off (power indicator is aircraft powered, connect the headset to the aircraft power sources only as described in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 Symptoms of failure may include loud tones, distortion, and loss of such failures...
Owner's guide
Page 6
...communications system volume. We strongly advise you to in command, you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft. Noise reduction and communications performance are reduced with Acoustic Noise Cancelling mode turned off . In ... Using audio sources When listening to make sure you may not sound familiar. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you must be sure to limit the volume to turn up , while piloting. 2 Tab 8, 16 Tab 7, 15 Tab 6, 14...
...communications system volume. We strongly advise you to in command, you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft. Noise reduction and communications performance are reduced with Acoustic Noise Cancelling mode turned off . In ... Using audio sources When listening to make sure you may not sound familiar. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you must be sure to limit the volume to turn up , while piloting. 2 Tab 8, 16 Tab 7, 15 Tab 6, 14...
Owner's guide
Page 7
... Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Headset earcup requirements Proper headset operation requires that the headset TriPort® openings on page 23. If screen replacement seems necessary, contact Bose® Technical Support. If the screen gets wet or any foreign objects become lodged on or...
... Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Headset earcup requirements Proper headset operation requires that the headset TriPort® openings on page 23. If screen replacement seems necessary, contact Bose® Technical Support. If the screen gets wet or any foreign objects become lodged on or...
Owner's guide
Page 8
...: Aircraft powered with Bluetooth® wireless technology. What's included Each Bose A20 Aviation Headset is our most advanced aviation headset yet. The type of a Bose® A20™ Aviation Headset. There are two options for the control module: • Control module with a control module, cable, and carrying case. The Bose A20 Aviation Headset is supplied with Bluetooth wireless technology • Conventional control module There...
...: Aircraft powered with Bluetooth® wireless technology. What's included Each Bose A20 Aviation Headset is our most advanced aviation headset yet. The type of a Bose® A20™ Aviation Headset. There are two options for the control module: • Control module with a control module, cable, and carrying case. The Bose A20 Aviation Headset is supplied with Bluetooth wireless technology • Conventional control module There...
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
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. Other configurations require the purchase of a cable assembly. 7
Owner's guide
Page 12
...the socket, or earcup damage may occur. 5. Carefully line up the microphone assembly to the small connector socket on the earcup. 3. Note: The headset will not work without the access cover installed. Attaching the microphone assembly Choose the earcup (L or R) to secure the assembly. 6. Use a ... on the earcup. 4. 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 be shipped with the microphone assembly packed separately, you want to attach the microphone assembly. 2. If your...
...the socket, or earcup damage may occur. 5. Carefully line up the microphone assembly to the small connector socket on the earcup. 3. Note: The headset will not work without the access cover installed. Attaching the microphone assembly Choose the earcup (L or R) to secure the assembly. 6. Use a ... on the earcup. 4. 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 be shipped with the microphone assembly packed separately, you want to attach the microphone assembly. 2. If your...
Owner's guide
Page 13
... access the operation switches. 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 remain securely closed. Note: The battery compartment cover is shipped with factory-set operation defaults. Open the battery...
... access the operation switches. 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 remain securely closed. Note: The battery compartment cover is shipped with factory-set operation defaults. Open the battery...
Owner's guide
Page 14
... Forcing an improper connection will alter the accuracy of inactivity. Press down firmly on a phone call , then it takes to shut off headset power. 2. To insert or replace the batteries 1. Note: Rechargeable batteries will cause permanent damage to release. The following table shows possible positions..., default setting, and purpose for mono audio systems (to preserve battery power. Auto Off functionality The Auto Off feature detects when the headset is terminated. With the switch in use a pen or a small, flat-tipped screwdriver to 9 minutes of the battery power indicator....
... Forcing an improper connection will alter the accuracy of inactivity. Press down firmly on a phone call , then it takes to shut off headset power. 2. To insert or replace the batteries 1. Note: Rechargeable batteries will cause permanent damage to release. The following table shows possible positions..., default setting, and purpose for mono audio systems (to preserve battery power. Auto Off functionality The Auto Off feature detects when the headset is terminated. With the switch in use a pen or a small, flat-tipped screwdriver to 9 minutes of the battery power indicator....
Owner's guide
Page 15
... panel connector" on the sleeve near the end of the 6-pin plug. 2. Firmly press the plug into the 6-pin connector provides the headset with aircraft power and intercom audio. CAUTION: Do not pull the connector out without first pulling back the sleeve. Align the 6-pin plug to...the connector. Align keyway Push plug in To disconnect the headset 1. 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 Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to a dual G/A plug for...
... panel connector" on the sleeve near the end of the 6-pin plug. 2. Firmly press the plug into the 6-pin connector provides the headset with aircraft power and intercom audio. CAUTION: Do not pull the connector out without first pulling back the sleeve. Align the 6-pin plug to...the connector. Align keyway Push plug in To disconnect the headset 1. 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 Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to a dual G/A plug for...
Owner's guide
Page 16
... the plugs look similar, the microphone plug is also available with other jack. It will only fit into one of the headset has two general aviation (G/A) plugs that connect to various aircraft audio jacks. These single-plug connectors should be inserted into the other types of plugs...Then insert the thinner microphone plug into the appropriate jack on page 7. 12 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. Insert the thicker intercom plug in first.
... the plugs look similar, the microphone plug is also available with other jack. It will only fit into one of the headset has two general aviation (G/A) plugs that connect to various aircraft audio jacks. These single-plug connectors should be inserted into the other types of plugs...Then insert the thinner microphone plug into the appropriate jack on page 7. 12 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. Insert the thicker intercom plug in first.
Owner's guide
Page 17
... . In very loud conditions, such as during takeoff, you put the headset on in Acoustic Noise Cancelling® as the headset compensates for instructions on page 27. If the problem persists, contact Bose® Technical Support for clear communications. Your experience with the headset powered on , lightly grasp each ear. • Adjust the headband...
... . In very loud conditions, such as during takeoff, you put the headset on in Acoustic Noise Cancelling® as the headset compensates for instructions on page 27. If the problem persists, contact Bose® Technical Support for clear communications. Your experience with the headset powered on , lightly grasp each ear. • Adjust the headband...
Owner's guide
Page 18
... 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Though it is not facing mouth 3. Do not purse your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Grasp the boom with your fingers and...
... 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Though it is not facing mouth 3. Do not purse your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Grasp the boom with your fingers and...
Owner's guide
Page 19
... turn off Acoustic Noise Cancelling noise reduction. 15 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 on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control...
... turn off Acoustic Noise Cancelling noise reduction. 15 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 on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control...
Owner's guide
Page 20
...adjust volume of the left and right volume control wheels on the control module adjust the volume of the corresponding earcup. Even at the headset control module. Power indicator New alkaline AA batteries will be set to adjust volume of light Indicates Aircraft Battery Battery Battery None Slow ...Bluetooth® wireless technology indicators. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET • Double-click the power button to loud sounds may cause hearing damage. To toggle the indicators between dim and bright, rapidly press the power...
...adjust volume of the left and right volume control wheels on the control module adjust the volume of the corresponding earcup. Even at the headset control module. Power indicator New alkaline AA batteries will be set to adjust volume of light Indicates Aircraft Battery Battery Battery None Slow ...Bluetooth® wireless technology indicators. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET • Double-click the power button to loud sounds may cause hearing damage. To toggle the indicators between dim and bright, rapidly press the power...