background image

15

Tab 6, 14

English

Tab 2, 10

Tab 3, 11

Tab 4, 12

Tab 5, 13

Tab 8, 16

Tab 7, 15

U

SING

 

THE

 H

EADSET

Using the control module

Use the control module to control the headset functions. There are two 
variations of the module; one featuring 

Bluetooth

®

 wireless technology and one 

that has basic functions only.

Power button

Use the power button to turn Acoustic Noise Cancelling

®

 on or off, and control 

indicator brightness.

• Press the power button once to turn on Acoustic Noise Cancelling noise 

reduction.

• Press and hold the power button to turn off Acoustic Noise Cancelling noise 

reduction. 

Bluetooth

 

Bluetooth

 

 

Bluetooth

 control module

Conventional control module

Left/Right volume controls

*

Power button

Power indicator

indicator

Bluetooth

 

Bluetooth

Auxiliary (AUX) 

function button

Volume Up button

Volume Down button

*

Control the intercom volume

Multifunction 
switch:

Top

Intercom 
prioritized

Middle

Intercom 
mixed

Bottom

Intercom 
only 

Audio Priority 
switch:

Top

Intercom 
prioritized

Middle

Intercom 
mixed

Bottom

Intercom 
only 

audio input

00_Cavu.book  Page 15  Thursday, October 28, 2010  12:03 PM

Summary of Contents for 31952

Page 1: ...A20 AVIATION HEADSET Owner s Guide 2010 Bose Corporation The Mountain Framingham MA 01701 9168 USA AM325453 Rev 06 Covers fm Page 1 Thursday October 28 2010 12 06 PM...

Page 2: ...at this product is in compliance with the essential requirements and other relevant provisions of Directive 1999 5 EC and other applicable Directives The complete Declaration of Conformity can be foun...

Page 3: ...ening the battery compartment 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 plug...

Page 4: ...n replacement 25 Battery replacement 25 Headband cushion replacement 26 Microphone assembly or access cover replacement 26 TROUBLESHOOTING 27 In case of difficulty 27 INSTALLATION 31 Mounting the airc...

Page 5: ...ucing mode In passive noise reducing mode the volume controls on the control module will automatically be set to maximum volume If additional volume control is needed you can use the intercom or radio...

Page 6: ...t communications system volume Avoid setting the volume controls at levels high enough to impair your hearing during extended periods of headset use Recognizing aircraft sounds With the headset s acti...

Page 7: ...headset s ability to reduce noise Do not attempt to remove replace or repair this screen If screen replacement seems necessary contact Bose Technical Support See Contact information on page 37 If the...

Page 8: ...s available with Bluetooth wireless technology What s included Each Bose A20 Aviation Headset is supplied with a control module cable and carrying case The type of control module and end plug configur...

Page 9: ...based on model of headset See Power and cable variations on page 7 Headphones Carrying case 2 AA Alkaline 3 5 mm adapter cable Headset assembly Accessories Clothing clip Second clothing clip Control m...

Page 10: ...uetooth Bluetooth control module Conventional control module Left Right volume controls Power button Power indicator indicator Bluetooth Bluetooth function button Volume Up button Volume Down button C...

Page 11: ...urchase 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...

Page 12: ...e earcup where you want to attach the microphone assembly 2 Remove the access cover to reveal the connector pins on the earcup 3 Carefully line up the microphone assembly to the small connector socket...

Page 13: ...tment to access the operation switches Press down firmly on the battery compartment cover finger indent and slide the cover down The cover is tethered to the module Do not attempt to detach it Note Th...

Page 14: ...e the Auto Off feature for uninterrupted functionality Inserting and replacing the batteries CAUTION If the batteries do not fit correctly do not force them in Forcing an improper connection will caus...

Page 15: ...31 Note An adapter is available from Bose to convert a 6 pin connector to a dual G A plug for additional connection flexibility To connect the headset 1 Align the 6 pin plug to the connector keyway by...

Page 16: ...ly different shape than the intercom plug Insert the thicker intercom plug in first It will only fit into one of the jacks Then insert the thinner microphone plug into the other jack Using other plug...

Page 17: ...tion in Acoustic Noise Cancelling as the headset compensates for a momentary pressure change If the problem continues when the sound level returns to normal see In case of difficulty on page 27 If the...

Page 18: ...ophone should be 1 2 inch from the opening of your lips 3 Make sure the talk side of the microphone is facing your lips Do not purse your lips Clothing clips The control module cable is fitted with tw...

Page 19: ...turn on Acoustic Noise Cancelling noise reduction Press and hold the power button to turn off Acoustic Noise Cancelling noise reduction Bluetooth Bluetooth Bluetooth control module Conventional contr...

Page 20: ...craft intercom or radio and at the headset control module Even at its lowest setting neither volume control wheel can completely turn off the volume Power indicator New alkaline AA batteries will gene...

Page 21: ...module Note This feature will not work unless the multifunction switch is turned on Note When the headset is running on battery power only and it is not plugged into an intercom it will shut off even...

Page 22: ...sition of the multifunction switch both the intercom and the Bluetooth wireless technology signal are heard as mixed Position Function Operation Top Intercom prioritized over AUX When the switch is in...

Page 23: ...ith the Power indicator This indicates that the headset is in discoverable mode and ready to be paired to a cell phone If the Bluetooth indicator does not flash alternately with the Power indicator fl...

Page 24: ...and the connection is lost the Bose A20 Aviation Headset automatically attempts to reconnect If a connection still does not exist after five minutes the Bluetooth wireless technology receiver in the...

Page 25: ...ng an active phone call To change the volume press the volume up or volume down button Each time you press a Bluetooth volume button the volume increases or decreases one level Note Pressing and holdi...

Page 26: ...t press the Bluetooth function button for more than five seconds To redial the last number When there are no active or incoming calls press the Bluetooth function button twice in quick succession Note...

Page 27: ...sistance Cleaning the headset General cleaning Gently wipe the outside surfaces of the headband connectors plastic parts and headband cushion using a soft cloth moistened with water and mild soap Take...

Page 28: ...blowers or hairdryer type devices to dry the inner screen Headband cushion 1 Remove the cushion as described in Headband cushion replacement on page 26 2 Place the cushion in a solution of water and a...

Page 29: ...the cushion reducing the effectiveness of the seal To extend the life of the ear cushions perform regular cleaning as described in General cleaning on page 23 Replacing the ear cushions 1 Grasp the ea...

Page 30: ...iginal size and shape To replace the cushion 1 On a protected surface turn the headset upside down Remove the old cushion from the headband 2 While still holding the headband open align the center of...

Page 31: ...dset is turned on Press the power button to turn the headset on Check the power indicator See page 16 for a description of the power indicator If using aircraft power check the aircraft fuse or circui...

Page 32: ...supplied to the headphone jack If the stereo mono switch is set to stereo and you only hear communications on one side setting the switch to mono plays audio on both sides Problem What to do Reduced A...

Page 33: ...see if the battery is low indicated by fast blinking red LED If your headset is aircraft powered make sure the voltage powering the headset is no less than 10 VDC Inspect the seal between the ear cush...

Page 34: ...me of the Bluetooth wireless technology is turned up on the control module The headset is not pairing with my phone Turn the headset off then on again Follow your phone instructions to remove all devi...

Page 35: ...he connector into a cutout using the diagrams below as a guide Connect the eight wires as follows Two for the microphone Two for audio One for power One for ground Two for audio shields Audio and micr...

Page 36: ...N 2 GND 3 COMM L 4 COMM R 5 MIC HI 6 MIC LO RED BLK WHT BLU WHT WHT BLU BLK WH BLK WH Ring audio Existing PTT switch and wiring no connection to Bose headset Microphone Jack TPP PTT Barrel gnd Headpho...

Page 37: ...ion of a headset microphone plug Do not connect to the tip PTT segment 6 White Blue MIC LO Microphone Lo ground Connect to the portion of the microphone jack that corresponds to the barrel position of...

Page 38: ...reduction performance Power source Battery powered 2 AA alkaline Aircraft powered 10 to 32 VDC Voltage Battery powered Two 2 AA alkaline batteries Aircraft powered 10 to 32 VDC Battery life Alkaline b...

Page 39: ...SO articles must have separate approval for installation in aircraft The article may be installed only if performed under 14 CFR part 43 or the applicable airworthiness requirements This device compli...

Page 40: ...Details of the limited warranty are provided on the warranty product registration card included in the product carton Ear cushions carry a six month limited warranty against manufacturer defects Limi...

Page 41: ...0 299 390777 FAX 31 0 299 390109 E MAIL aviation_europe Bose com World Wide Web www Bose com Ordering parts and accessories The following accessories and customer replaceable parts can be purchased d...

Page 42: ...38 Tab 3 11 Tab 8 16 Tab 7 15 Tab 6 14 Tab 5 13 Tab 4 12 English Tab2 10 00_Cavu book Page 38 Thursday October 28 2010 12 03 PM...

Page 43: ...8 16 Tab 7 15 The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any such use by Bose Corporation is under license All other marks are property of Bose Corpora...

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