Bose Aviation Headset X Technical Information

A20® AVIATION HEADSETOwner’s Guide©2012 Bose Corporation, The Mountain,Framingham, MA 01701-9168 USAAM325453 Rev.07Covers.fm Page 1 Wednesday, April

6Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0INTRODUCTIONControl module variationsIf you opted for Bluetooth® wireless

7Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15INTRODUCTIONPower and cable variationsThe Bose® A20® Aviation Headset is av

8Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0PREPARING THE HEADSET FOR USEThe microphone assemblyYour headset may be s

9Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15PREPARING THE HEADSET FOR USEThe battery compartmentThe Bose® A20® Aviation

10Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0PREPARING THE HEADSET FOR USE3. To change a switch position, use a pen o

11Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15PREPARING THE HEADSET FOR USEConnecting the headset to the aircraftThe Bos

12Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0PREPARING THE HEADSET FOR USEUsing the dual general aviation plugsThe mo

13Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15USING THE HEADSETWearing and adjusting the headsetProper fit on your head

14Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0USING THE HEADSET1. Grasp the boom with your fingers and move the microp

15Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15USING THE HEADSETUsing the control moduleUse the control module to control

iTab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0SAFETY INFORMATIONNOTE: This equipment has been tested and found to compl

16Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0USING THE HEADSET• Double-click the power button to dim the power and Bl

17Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15USING THE HEADSETAuxiliary (AUX) audio inputThe Bose® A20® Aviation Headse

18Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0USING THE HEADSETMultifunction/Audio priority switchThe multifunction/au

19Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15USING THE HEADSETUsing the headset with a Bluetooth®-enabled phonePairing

20Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0USING THE HEADSETNote: The Bose A20® Aviation Headset will automatically

21Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15USING THE HEADSETIf you turn the headset control module off, the control m

22Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0USING THE HEADSETMaking and answering calls To make a callDial from your

23Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15HEADSET CARE AND MAINTENANCEInstructions for continued airworthinessBose r

24Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0HEADSET CARE AND MAINTENANCEMicrophone windscreenRemove the windscreen f

25Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15HEADSET CARE AND MAINTENANCEEar cushion replacementAs a general rule, ear

iiTab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15CONTENTSADVISORIES 1Operational advisory . . . . . . . . . . . . . . . .

26Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0HEADSET CARE AND MAINTENANCEHeadband cushion replacementThe headband cus

27Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15TROUBLESHOOTINGIn case of difficultyLook for the problem in the left colum

28Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0TROUBLESHOOTINGAudioProblem What to doLow volume of incoming communicati

29Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15TROUBLESHOOTINGAuxiliary audio inputProblem What to doLow rumbling sound w

30Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0TROUBLESHOOTINGBluetooth® wireless technologyAuto offProblem What to doC

31Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15INSTALLATIONMounting the aircraft panel connectorThe aircraft panel connec

32Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0INSTALLATIONCAUTION: Do not use excessive force or bend the installed co

33Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15INSTALLATIONHelicopter (U174) connection diagramNote: Barrel ground (gnd)

34Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0TECHNICAL INFORMATIONHeadphoneDamage could occur to avionics equipment t

35Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15TECHNICAL INFORMATIONFAA Technical Standards OrderThe Bose® A20® Aviation

iiiTab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0CONTENTSHEADSET CARE AND MAINTENANCE 23Instructions for continued airwo

36Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0SERVICE AND WARRANTY INFORMATIONLocating the headset serial numberYour

37Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15SERVICE AND WARRANTY INFORMATIONContact informationContact Bose for:• Spar

38Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0SERVICE AND WARRANTY INFORMATION00_Cavu.book Page 38 Wednesday, April

39Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15The Bluetooth® word mark and logos are registered trademarks owned by Blue

A20® AVIATION HEADSETOwner’s Guide©2012 Bose Corporation, The Mountain,Framingham, MA 01701-9168 USAAM325453 Rev.07Covers.fm Page 1 Wednesday, April

1Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15ADVISORIESOperational advisoryThe Bose® A20® Aviation Headset incorporates

2Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0ADVISORIESHearing safetyThe headset is intended for use with the Acoustic

3Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15ADVISORIESHeadset earcup requirementsProper headset operation requires that

4Tab 3, 11Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12EnglishTab2 , 1 0INTRODUCTIONCongratulations on your purchase of a Bose® A20® Aviation Hea

5Tab 6, 14English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13Tab 8, 16Tab 7, 15INTRODUCTIONWhat’s in the carton Note: Cable connector types will vary base