Owner's guide
Page 4
... 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 Microphone windscreen replacement 24 Ear cushion replacement 25 Battery replacement 25 Headband cushion replacement 26 Microphone assembly... 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 ...
... 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 Microphone windscreen replacement 24 Ear cushion replacement 25 Battery replacement 25 Headband cushion replacement 26 Microphone assembly... 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 ...
Owner's guide
Page 17
...noisy environment. If the problem persists, contact Bose® Technical Support for comfort and optimal noise reduction performance. During a long flight, you may feel a slight pressure point, which can be relieved by adjusting the headband position. See "Headset earcup openings" on page 23 for instructions on... sound level returns to normal, see "In case of how it so its cushion is completely over your ear. Microphone placement Microphone placement is important both for assistance. With the headset on removing blockages. You should sound and feel an even, gentle pressure all ...
...noisy environment. If the problem persists, contact Bose® Technical Support for comfort and optimal noise reduction performance. During a long flight, you may feel a slight pressure point, which can be relieved by adjusting the headband position. See "Headset earcup openings" on page 23 for instructions on... sound level returns to normal, see "In case of how it so its cushion is completely over your ear. Microphone placement Microphone placement is important both for assistance. With the headset on removing blockages. You should sound and feel an even, gentle pressure all ...
Owner's guide
Page 20
...is disabled to dim the power and Bluetooth® wireless technology indicators. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, use of the Bluetooth feature, and age of the corresponding earcup. Holding the control module upright and facing you: • Use ...may cause hearing damage. 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 conserve the remaining power once the battery reaches this level. 16 With Acoustic Noise Cancelling® off, volume...
...is disabled to dim the power and Bluetooth® wireless technology indicators. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, use of the Bluetooth feature, and age of the corresponding earcup. Holding the control module upright and facing you: • Use ...may cause hearing damage. 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 conserve the remaining power once the battery reaches this level. 16 With Acoustic Noise Cancelling® off, volume...
Owner's guide
Page 27
... the outside surfaces of the earcups. Do not immerse ear cushions in this may be performed by Bose or an authorized repair facility. Check to force any other liquid. Contact Bose® Technical Support for continued airworthiness Bose recommends following pages. Headset earcup openings The TriPort® headset opening and the microphone opening When wiping down the...
... the outside surfaces of the earcups. Do not immerse ear cushions in this may be performed by Bose or an authorized repair facility. Check to force any other liquid. Contact Bose® Technical Support for continued airworthiness Bose recommends following pages. Headset earcup openings The TriPort® headset opening and the microphone opening When wiping down the...
Owner's guide
Page 28
... to "Contact information" on page 37. Rinse and air dry the windscreen. Do not use , parts like windscreens and ear cushions may require periodic replacement. Located inside the earcup, the inner screen is completely dry, then reattach. Microphone windscreen replacement 1. ...from Bose Corporation. Headband cushion 1. Slide the replacement windscreen on page 26. 2. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English HEADSET CARE AND MAINTENANCE Microphone windscreen Remove the windscreen from the microphone as described in "Headband cushion replacement...
... to "Contact information" on page 37. Rinse and air dry the windscreen. Do not use , parts like windscreens and ear cushions may require periodic replacement. Located inside the earcup, the inner screen is completely dry, then reattach. Microphone windscreen replacement 1. ...from Bose Corporation. Headband cushion 1. Slide the replacement windscreen on page 26. 2. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English HEADSET CARE AND MAINTENANCE Microphone windscreen Remove the windscreen from the microphone as described in "Headband cushion replacement...
Owner's guide
Page 29
...12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 HEADSET CARE AND MAINTENANCE Ear cushion replacement As a general rule, ear cushions should be replaced every six months or every 350 hours of improper storage. Gently pull the ear cushion skirt up and away from the earcup. 3. You may have to ...a full beard or heavy whiskers. • Subject the headsets to remove any folds in the skirt and wrinkles in "General cleaning" on the earcup. 2. Properly align the replacement ear cushion with the earcup. 4. Grasp the ear cushion and adjust its position to severe temperature extremes such as ...
...12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 HEADSET CARE AND MAINTENANCE Ear cushion replacement As a general rule, ear cushions should be replaced every six months or every 350 hours of improper storage. Gently pull the ear cushion skirt up and away from the earcup. 3. You may have to ...a full beard or heavy whiskers. • Subject the headsets to remove any folds in the skirt and wrinkles in "General cleaning" on the earcup. 2. Properly align the replacement ear cushion with the earcup. 4. Grasp the ear cushion and adjust its position to severe temperature extremes such as ...
Owner's guide
Page 31
..., batteries, windscreen, headband cushion, and ear cushions are securely inserted into the panel connectors. • Try using battery power, make sure the batteries are fresh and cor- No active Acoustic Noise Cancelling noise reduction and no communication. • Make sure the headset is turned on. •... noise reduction, but no Acoustic Noise Cancelling® noise reduction in either ear. If the problem persists, contact Bose using the contact information on how to care for and maintain the headset, see if the volume controls are securely inserted into the panel connectors. ...
..., batteries, windscreen, headband cushion, and ear cushions are securely inserted into the panel connectors. • Try using battery power, make sure the batteries are fresh and cor- No active Acoustic Noise Cancelling noise reduction and no communication. • Make sure the headset is turned on. •... noise reduction, but no Acoustic Noise Cancelling® noise reduction in either ear. If the problem persists, contact Bose using the contact information on how to care for and maintain the headset, see if the volume controls are securely inserted into the panel connectors. ...
Owner's guide
Page 32
..., intermittent clicking sounds, or communication distortion in a loud environment. • Check the TriPort® headset openings on page 9 • If your audio jacks are completely inside the ear cushions, and that interfere with no air gaps around your head. Refer to "The operation switches" on the... 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English TROUBLESHOOTING Problem What to orient the headset correctly. • Inspect the seal between the ear cushion skirt and the earcup. If dust or dirt is set to items that a hat or eyeglasses with the seal.
..., intermittent clicking sounds, or communication distortion in a loud environment. • Check the TriPort® headset openings on page 9 • If your audio jacks are completely inside the ear cushions, and that interfere with no air gaps around your head. Refer to "The operation switches" on the... 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English TROUBLESHOOTING Problem What to orient the headset correctly. • Inspect the seal between the ear cushion skirt and the earcup. If dust or dirt is set to items that a hat or eyeglasses with the seal.
Owner's guide
Page 33
... (intercom only) position. If dust or dirt is not set to "Wearing and adjusting the headset" on in place and properly connected. Replace any cushions that they are completely inside the ear cushions, and that a hat or eyeglasses with thick temples do not interfere with the seal. •...; Check ports at the outside surface of the headset makes it sensitive to create a better seal ...
... (intercom only) position. If dust or dirt is not set to "Wearing and adjusting the headset" on in place and properly connected. Replace any cushions that they are completely inside the ear cushions, and that a hat or eyeglasses with thick temples do not interfere with the seal. •...; Check ports at the outside surface of the headset makes it sensitive to create a better seal ...
Owner's guide
Page 38
...adjusts its input to 70°C) Altitude: 15,000 feet maximum pressure altitude for full cancellation Hands-free profile, Bluetooth 2.1 Bose® A20™ Aviation Headset: B016487 34 Microphone (Dynamic) Impedance: 5 Ohms Sensitivity: Equivalent to M-87/M-101 Maximum ambient noise level 115 dBC SPL ... aviation aircraft noise. Microphone (Electret) Bias required: 8 to 16 VDC through 220 to 15 kHz Sensitivity: 92 dB SPL typical, measured at 114 dB SPL. Duration varies with battery age, ambient noise levels, temperature, ear cushion seal, and use only with 600 Ohm headsets....
...adjusts its input to 70°C) Altitude: 15,000 feet maximum pressure altitude for full cancellation Hands-free profile, Bluetooth 2.1 Bose® A20™ Aviation Headset: B016487 34 Microphone (Dynamic) Impedance: 5 Ohms Sensitivity: Equivalent to M-87/M-101 Maximum ambient noise level 115 dBC SPL ... aviation aircraft noise. Microphone (Electret) Bias required: 8 to 16 VDC through 220 to 15 kHz Sensitivity: 92 dB SPL typical, measured at 114 dB SPL. Duration varies with battery age, ambient noise levels, temperature, ear cushion seal, and use only with 600 Ohm headsets....
Owner's guide
Page 40
... Refer to properly reseat the headband cushion by pressing down firmly. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 SERVICE AND WARRANTY INFORMATION English Locating the headset serial number Your Bose® A20™ Aviation Headset is covered by a limited 5-year warranty. Ear cushions carry a six-month limited warranty against manufacturer defects...
... Refer to properly reseat the headband cushion by pressing down firmly. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 SERVICE AND WARRANTY INFORMATION English Locating the headset serial number Your Bose® A20™ Aviation Headset is covered by a limited 5-year warranty. Ear cushions carry a six-month limited warranty against manufacturer defects...