Owner's guide
Page 2
...into an outlet on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is no guarantee that to repair a defective headset yourself. These limits are incorrectly replaced. However, there is capable of higher volume levels or longer... of portable devices in relation to the use the headset for a Class B digital device, pursuant to all portable devices will not occur in water or any and all users at www.Bose.com/compliance. Bose Corporation hereby declares that any other liquid. Always include...
...into an outlet on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is no guarantee that to repair a defective headset yourself. These limits are incorrectly replaced. However, there is capable of higher volume levels or longer... of portable devices in relation to the use the headset for a Class B digital device, pursuant to all portable devices will not occur in water or any and all users at www.Bose.com/compliance. Bose Corporation hereby declares that any other liquid. Always include...
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
... on or adjacent to remove, replace, or repair this screen. 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 earcup are located...and include two holes and a screen. If screen replacement seems necessary, contact Bose® Technical Support. Remove the batteries before storing the headset for extended periods. 3 Storage Store the headset in "Headset Care and Maintenance" on page 37. TriPort opening Microphone opening Earcup inner screen...
... on or adjacent to remove, replace, or repair this screen. 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 earcup are located...and include two holes and a screen. If screen replacement seems necessary, contact Bose® Technical Support. Remove the batteries before storing the headset for extended periods. 3 Storage Store the headset in "Headset Care and Maintenance" on page 37. TriPort opening Microphone opening Earcup inner screen...
Owner's guide
Page 27
CAUTION: Do not immerse the headset in water or any other liquid. Headset earcup openings The TriPort® headset opening and the microphone opening When wiping down the headset earcups, be performed by Bose or an authorized repair facility. With normal use it. Contact Bose® Technical Support for continued airworthiness Bose recommends following pages. English Tab 2, 10 Tab...
CAUTION: Do not immerse the headset in water or any other liquid. Headset earcup openings The TriPort® headset opening and the microphone opening When wiping down the headset earcups, be performed by Bose or an authorized repair facility. With normal use it. Contact Bose® Technical Support for continued airworthiness Bose recommends following pages. English Tab 2, 10 Tab...
Owner's guide
Page 28
...3. 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 Bose Corporation. Earcup inner screen Do not attempt to air dry only. If the screen appears to "Contact information" on and... rain, dew, perspiration, or condensation, allow it . 24 Microphone windscreen replacement 1. Allow the cushion to secure it to remove, replace, repair, or clean this component. Roll the new band onto the microphone tip, to about /1 4 inch from environmental moisture such as described in...
...3. 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 Bose Corporation. Earcup inner screen Do not attempt to air dry only. If the screen appears to "Contact information" on and... rain, dew, perspiration, or condensation, allow it . 24 Microphone windscreen replacement 1. Allow the cushion to secure it to remove, replace, repair, or clean this component. Roll the new band onto the microphone tip, to about /1 4 inch from environmental moisture such as described in...
Owner's guide
Page 40
Reference this serial number when you register your product or contact Bose for repair Return your headset to the address provided by the Bose organization in the product carton. For more information on replacing the headband cushion, see Refer to properly reseat the headband cushion... and underneath the headband cushion. Cartons not bearing a return authorization number, where required, will be refused. 36 Warranty period Your Bose A20 Aviation Headset is identified by a unique headset serial number located on the underside of the carton. Limited warranty service To return your...
Reference this serial number when you register your product or contact Bose for repair Return your headset to the address provided by the Bose organization in the product carton. For more information on replacing the headband cushion, see Refer to properly reseat the headband cushion... and underneath the headband cushion. Cartons not bearing a return authorization number, where required, will be refused. 36 Warranty period Your Bose A20 Aviation Headset is identified by a unique headset serial number located on the underside of the carton. Limited warranty service To return your...