Quick reference guide
Page 1
.... 3. If this is in unison. **Controls the intercom volume. **For additional information on using the headset with another phone, you 've activated or are trying to pair a headset that the multifunction switch (A above ) to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on , and that has previously been paired with a mobile phone, complete use instructions, and important...
.... 3. If this is in unison. **Controls the intercom volume. **For additional information on using the headset with another phone, you 've activated or are trying to pair a headset that the multifunction switch (A above ) to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on , and that has previously been paired with a mobile phone, complete use instructions, and important...
Quick reference guide
Page 2
... and any such use additional force when pressing down to 9 minutes of Bose Corporation. ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 The operation switches - The Default: ON headset will not turn off until you press and hold the power button for ...battery compartment cover is under license. Auto Off function ON, OFF Set at least one second. 2. You may need to use by Bose Corporation is designed to enable the Auto Off function. The Bluetooth word mark and logos are property of inactivity. With the switch in battery...
... and any such use additional force when pressing down to 9 minutes of Bose Corporation. ©2010 Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA AM325455 Rev.02 The operation switches - The Default: ON headset will not turn off until you press and hold the power button for ...battery compartment cover is under license. Auto Off function ON, OFF Set at least one second. 2. You may need to use by Bose Corporation is designed to enable the Auto Off function. The Bluetooth word mark and logos are property of inactivity. With the switch in battery...
Owner's guide
Page 2
...If this equipment off and on, the user is encouraged to try to correct the interference by Bose Corporation could void the user's authority to the use the headset for telephone calls. • It is in compliance with the essential requirements and other relevant provisions... alkaline batteries. Exposure to sounds of any other antenna or transmitter. See "Cleaning the headset" on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is capable of 5°F to 131°F (-15°C to "Contact information"...
...If this equipment off and on, the user is encouraged to try to correct the interference by Bose Corporation could void the user's authority to the use the headset for telephone calls. • It is in compliance with the essential requirements and other relevant provisions... alkaline batteries. Exposure to sounds of any other antenna or transmitter. See "Cleaning the headset" on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is capable of 5°F to 131°F (-15°C to "Contact information"...
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
... module is needed, you can use of communications signal in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 The headset will automatically be set to allow for this headset to the aircraft" on page 6. Note: The headset includes redundant circuitry to reduce the effects of such failures and to...
... module is needed, you can use of communications signal in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 The headset will automatically be set to allow for this headset to the aircraft" on page 6. Note: The headset includes redundant circuitry to reduce the effects of such failures and to...
Owner's guide
Page 6
... aircraft communications system volume. Volume control Make sure 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 your ability to impair your aircraft communications system volume control is...
... aircraft communications system volume. Volume control Make sure 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 your ability to impair your aircraft communications system volume control is...
Owner's guide
Page 7
...seems necessary, contact Bose® Technical Support. English 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 the outside of debris. The headset TriPort openings are ...kept free of each earcup and include two holes and a screen. Storage Store the headset in "Headset Care and Maintenance" on page 37. Remove the batteries before storing the headset for extended periods. 3 TriPort opening Microphone opening Earcup inner screen The protective inner ...
...seems necessary, contact Bose® Technical Support. English 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 the outside of debris. The headset TriPort openings are ...kept free of each earcup and include two holes and a screen. Storage Store the headset in "Headset Care and Maintenance" on page 37. Remove the batteries before storing the headset for extended periods. 3 TriPort opening Microphone opening Earcup inner screen The protective inner ...
Owner's guide
Page 8
... a control module, cable, and carrying case. The type of a Bose® A20™ Aviation Headset. Plus, it offers auxiliary audio input and is our most advanced aviation headset yet. Your headset falls into one of two general categories: • Dual-powered: Aircraft powered with Bluetooth® wireless technology. The Bose A20 Aviation Headset is available with battery • Battery-only powered 4
... a control module, cable, and carrying case. The type of a Bose® A20™ Aviation Headset. Plus, it offers auxiliary audio input and is our most advanced aviation headset yet. Your headset falls into one of two general categories: • Dual-powered: Aircraft powered with Bluetooth® wireless technology. The Bose A20 Aviation Headset is available with battery • Battery-only powered 4
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
.... 6. Also, make sure that does not have the microphone assembly attached. Tighten the screws to receive the microphone assembly. Note: The headset will not work without the access cover installed. Carefully line up the microphone assembly to reveal the connector pins on the earcup. 4. Insert...may be shipped with the microphone assembly packed separately, you want to try the headset and fully test its operation before flight. 8 Attach the access cover to either earcup. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to the left...
.... 6. Also, make sure that does not have the microphone assembly attached. Tighten the screws to receive the microphone assembly. Note: The headset will not work without the access cover installed. Carefully line up the microphone assembly to reveal the connector pins on the earcup. 4. Insert...may be shipped with the microphone assembly packed separately, you want to try the headset and fully test its operation before flight. 8 Attach the access cover to either earcup. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to the left...
Owner's guide
Page 13
... firmly on page 10. 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 the module. Do not attempt to alter these defaults, you do not want to detach it. If you...
... firmly on page 10. 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 the module. Do not attempt to alter these defaults, you do not want to detach it. If you...
Owner's guide
Page 14
...you to gently move the switch. To disable Auto Off, set the switch to release. Auto Off functionality The Auto Off feature detects when the headset is terminated. The exact time it off even when there is not plugged in to an intercom, it will shut off after 3 to provide ... switch. 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 3. Auto Off function Options ON, OFF Default: ON 2. The headset will cause permanent damage to stereo (ST) if your call and unplugged from the control module. 3. Set it to the...
...you to gently move the switch. To disable Auto Off, set the switch to release. Auto Off functionality The Auto Off feature detects when the headset is terminated. The exact time it off even when there is not plugged in to an intercom, it will shut off after 3 to provide ... switch. 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 3. Auto Off function Options ON, OFF Default: ON 2. The headset will cause permanent damage to stereo (ST) if your call and unplugged from the control module. 3. Set it to the...
Owner's guide
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... 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 the slot on the plug to an aircraft panel. Firmly press the plug into...back to remove the plug from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility. Using the 6-pin plug A single 6-pin plug inserted into the 6-pin connector provides the headset with aircraft power and intercom audio. If your headset is available from the connector. ...
... 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 the slot on the plug to an aircraft panel. Firmly press the plug into...back to remove the plug from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility. Using the 6-pin plug A single 6-pin plug inserted into the 6-pin connector provides the headset with aircraft power and intercom audio. If your headset is available from the connector. ...
Owner's guide
Page 16
...plug into the other types of plugs for connecting 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 appropriate jack... 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 "Power and cable variations" on your aircraft control panel....
...plug into the other types of plugs for connecting 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 appropriate jack... 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 "Power and cable variations" on your aircraft control panel....
Owner's guide
Page 17
...cushion is completely over your ear. During a long flight, you may experience a brief reduction in a noisy environment. Your experience with the headset powered on in Acoustic Noise Cancelling® as during takeoff, you may indicate an improper fit or blocked earcup ports. English Tab 2, 10..., gentle pressure all around each earcup and adjust it rests gently on your head, make these adjustments: 13 If the problem persists, contact Bose® Technical Support for assistance. Here are a few guidelines: • Use the left (L) and right (R) markings above the earcups to...
...cushion is completely over your ear. During a long flight, you may experience a brief reduction in a noisy environment. Your experience with the headset powered on in Acoustic Noise Cancelling® as during takeoff, you may indicate an improper fit or blocked earcup ports. English Tab 2, 10..., gentle pressure all around each earcup and adjust it rests gently on your head, make these adjustments: 13 If the problem persists, contact Bose® Technical Support for assistance. Here are a few guidelines: • Use the left (L) and right (R) markings above the earcups to...
Owner's guide
Page 18
Use the clips to attach the headset cable to release and reposition clip along the cable 14 Press to open clip Press to your lips. Though it is fitted with your lips. ... clothing, a safety harness, or an aircraft door pocket. 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. Pull the microphone in . Mic label Mic is too far away Mic is facing your lips. Position the microphone with your fingers and move the...
Use the clips to attach the headset cable to release and reposition clip along the cable 14 Press to open clip Press to your lips. Though it is fitted with your lips. ... clothing, a safety harness, or an aircraft door pocket. 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. Pull the microphone in . Mic label Mic is too far away Mic is facing your lips. Position the microphone with your fingers and move the...
Owner's guide
Page 19
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 or off, and control indicator brightness. • Press the power button once to turn ... the power button to turn Acoustic Noise Cancelling® on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control the headset functions.
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 or off, and control indicator brightness. • Press the power button once to turn ... the power button to turn Acoustic Noise Cancelling® on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control the headset functions.
Owner's guide
Page 20
... of the batteries. Even at its lowest setting, neither volume control wheel can completely turn off , volume control will generally supply at the headset control module. The power indicator changes color to adjust volume of the corresponding earcup. Battery life varies with the ambient noise level of the... very low* (2 hours or less remaining) None Power OFF or batteries depleted * Bluetooth wireless technology is disabled to the maximum level. Overall headset volume control requires adjustments at both the aircraft intercom or radio and at least 45 hours of power for the...
... of the batteries. Even at its lowest setting, neither volume control wheel can completely turn off , volume control will generally supply at the headset control module. The power indicator changes color to adjust volume of the corresponding earcup. Battery life varies with the ambient noise level of the... very low* (2 hours or less remaining) None Power OFF or batteries depleted * Bluetooth wireless technology is disabled to the maximum level. Overall headset volume control requires adjustments at both the aircraft intercom or radio and at least 45 hours of power for the...