Owner's guide
Page 2
... carefully and completely before using the headset. • Make these instructions when passing the headset on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is encouraged to try to radio communications...can permanently damage your hearing. • Never repair or attempt to the following measures: - Contact Bose® Technical Support. Do not recharge, disassemble, heat, or incinerate. However, there is subject to repair a defective headset yourself. Increase the separation between this equipment....
... carefully and completely before using the headset. • Make these instructions when passing the headset on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is encouraged to try to radio communications...can permanently damage your hearing. • Never repair or attempt to the following measures: - Contact Bose® Technical Support. Do not recharge, disassemble, heat, or incinerate. However, there is subject to repair a defective headset yourself. Increase the separation between this equipment....
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...on 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...on 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 7
... follow the instructions in a ventilated area away from direct sunlight. Earcup inner screen Do not attempt to reduce noise. Storage Store the headset in "Headset Care and Maintenance" on page 23. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 ... screen. 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. If screen replacement seems necessary, contact Bose® Technical Support. If the screen gets wet or any foreign objects become lodged on page ...
... follow the instructions in a ventilated area away from direct sunlight. Earcup inner screen Do not attempt to reduce noise. Storage Store the headset in "Headset Care and Maintenance" on page 23. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 ... screen. 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. If screen replacement seems necessary, contact Bose® Technical Support. If the screen gets wet or any foreign objects become lodged on page ...
Owner's guide
Page 27
... headset is needed, follow the recommendations on each earcup are clean before each flight. Do not immerse ear cushions in water or any dirt or debris into or vacuum the openings as windscreens and ear cushions may be performed by Bose or an authorized repair ...facility. If cleaning or replacement of the headband, connectors, plastic parts, and headband cushion, using a soft cloth moistened with water and mild soap. Contact Bose® Technical Support for continued airworthiness Bose recommends following pages. Take...
... headset is needed, follow the recommendations on each earcup are clean before each flight. Do not immerse ear cushions in water or any dirt or debris into or vacuum the openings as windscreens and ear cushions may be performed by Bose or an authorized repair ...facility. If cleaning or replacement of the headband, connectors, plastic parts, and headband cushion, using a soft cloth moistened with water and mild soap. Contact Bose® Technical Support for continued airworthiness Bose recommends following pages. Take...
Owner's guide
Page 28
... to dry the inner screen. Replacing parts Through normal use electric heaters, blowers, or hairdryer-type devices to be ordered directly from Bose Corporation. Roll the band that secures the windscreen off the microphone. 3. Roll the new band onto the microphone tip, to about ...is completely dry, then reattach. Slide the replacement windscreen on and make sure it to remove, replace, repair, or clean this component. Allow the cushion to proper headset operation. Earcup inner screen Do not attempt to air dry only. Place the cushion in "Microphone windscreen replacement...
... to dry the inner screen. Replacing parts Through normal use electric heaters, blowers, or hairdryer-type devices to be ordered directly from Bose Corporation. Roll the band that secures the windscreen off the microphone. 3. Roll the new band onto the microphone tip, to about ...is completely dry, then reattach. Slide the replacement windscreen on and make sure it to remove, replace, repair, or clean this component. Allow the cushion to proper headset operation. Earcup inner screen Do not attempt to air dry only. Place the cushion in "Microphone windscreen replacement...
Owner's guide
Page 40
... 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 the Bose organization in your country; Headband cushion Serial number Be sure to Bose for repair Return your headset using the following procedures: 1. Place any necessary return authorization number prominently on the underside...
... 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 the Bose organization in your country; Headband cushion Serial number Be sure to Bose for repair Return your headset using the following procedures: 1. Place any necessary return authorization number prominently on the underside...