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Covers.fm Page 1 Wednesday, April 25, 2012 10:38 AM
®
A20 AVIATION HEADSET
©2012 Bose Corporation, The Mountain,
Framingham, MA 01701-9168 USA
Owner’s Guide
AM325453 Rev.07
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00_Cavu.book Page i Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English SAFETY INFORMATION NOTE: This equipment has been tested and Important Safety Instructions found to comply with the limits for a Class B � Please read these instructions carefully digital device, pursuant to Part 15 of the and completely before using the headset. FCC Rules. These limits are designed to provide reasonable protection against � Keep these instr
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00_Cavu.book Page ii Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 CONTENTS ADVISORIES 1 Operational advisory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hearing safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Volume control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Recognizing aircr
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00_Cavu.book Page iii Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 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 o
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00_Cavu.book Page 1 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 ADVISORIES Operational advisory ® ® ® The Bose A20 Aviation Headset incorporates Acoustic Noise Cancelling technology. As with any complex electronic device, it is possible for this headset to fail during operation. Symptoms of failure may include loud tones, distortion, and loss of communications signal in the headset when used in the Acoustic Noise Cancell
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00_Cavu.book Page 2 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English ADVISORIES Hearing safety ® The headset is intended for use with the Acoustic Noise Cancelling mode turned on. Noise reduction and communications performance are reduced with Acoustic Noise Cancelling mode turned off. Volume control Make sure your aircraft communications system volume control is easily accessible. This control affects the strength of the co
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00_Cavu.book Page 3 Wednesday, April 25, 2012 10:10 AM 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 kept free of debris. The headset TriPort openings are located on the outside of each earcup and include two holes and a screen. TriPort opening Microphone opening Earcup inner screen The protective inner screen is critical to the hea
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00_Cavu.book Page 4 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English INTRODUCTION ® ® Congratulations on your purchase of a Bose A20 Aviation Headset. The Bose A20 Aviation Headset is our most advanced aviation headset yet. It delivers significantly increased noise reduction and provides a more comfortable fit, without compromising the clear audio you expect from Bose. Plus, it offers ® auxiliary audio input and is available w
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00_Cavu.book Page 5 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION What’s in the carton Headset assembly: Accessories: Headphones Carrying case Clothing clip 2 AA alkaline batteries* Control module See “Control module variations” on page 6 for options. 3.5 mm adapter cable Second clothing clip Cable connector (varies) Note: Cable connector types will vary based on model of headset. See “Power and cable variatio
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00_Cavu.book Page 6 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English INTRODUCTION Control module variations ® If you opted for Bluetooth wireless technology, you received the control module featuring Bluetooth technology. If not, you received the conventional control module. Bluetooth control module Conventional control module Left/Right volume controls* Power indicator Power button Bluetooth indicator Bluetooth Bluetooth fu
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00_Cavu.book Page 7 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 INTRODUCTION Power and cable variations ® ® The Bose A20 Aviation Headset is available for purchase in different standard aircraft connector options, including: Battery powered options Dual powered options Operate with battery power only Operate with either aircraft or battery power No battery needed when connected to aircraft power Dual G/A 6-pin* 5-pin XLR U1
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00_Cavu.book Page 8 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE The microphone assembly Your headset may be shipped with the microphone assembly (boom microphone and cable) attached to the left earcup. If your headset is shipped with the microphone assembly packed separately, you can attach it to either earcup. Attaching the microphone assembly Choose the earcup (L or R) to receive the micropho
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00_Cavu.book Page 9 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment ® ® The Bose A20 Aviation Headset is shipped with factory-set operation defaults. If you want to alter these defaults, you can change the operation switches located inside the control module battery compartment. If you do not want to change any of the operation switches, skip ahead to “Inserting and replac
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00_Cavu.book Page 10 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE 3. To change a switch position, use a pen or a small, flat-tipped screwdriver to gently move the switch. This table shows possible positions, default setting, and purpose for each switch. Switch Options Purpose 1. Auto Off ON, OFF Set at the factory to enable the Auto Off function. The headset function will turn off after 3 to 9 m
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00_Cavu.book Page 11 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft ® ® The Bose A20 Aviation Headset can be configured to either plug into aircraft power or rely entirely on battery power. Using the 6-pin plug A single 6-pin plug inserted into the 6-pin connector provides the headset with aircraft power and intercom audio. If your headset is aircraft-powere
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00_Cavu.book Page 12 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE Using the dual general aviation plugs The most common battery powered (only) version of the headset has two general aviation (G/A) plugs that connect to the aircraft audio. Although the plugs look similar, the microphone plug is shorter, thinner, and has a slightly different shape than the intercom plug. Insert the thicker inter
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00_Cavu.book Page 13 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Wearing and adjusting the headset Proper fit on your head is important both for comfort and optimal noise reduction performance. Here are a few guidelines: � Use the left (L) and right (R) markings above the earcups to orient the headset properly. R L � As you put the headset on, lightly grasp each earcup and adjust it so its cushion is
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00_Cavu.book Page 14 Wednesday, April 25, 2012 10:10 AM Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Grasp the boom with your fingers and move the microphone up or down so it is level with your mouth. 2. Pull the microphone in toward your lips. Position the microphone with its talk side facing in. Though it will be slightly off center, the microphone 1 should be /2 inch from the opening of your lips. Mic label Mic is too far away Mic l
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00_Cavu.book Page 15 Wednesday, April 25, 2012 10:10 AM English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET 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. Bluetooth control module Conventional control module Left/Right volume controls* Power indicator Power button Bluetooth indicator Blue
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00_Cavu.book Page 16 Wednesday, April 25, 2012 10:10 AM 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 dim the power and Bluetooth wireless technology indicators. To toggle the indicators between dim and bright, rapidly press the power button twice. Volume control The left and right volume control wheels on the control module adjust the ® volume of the corresponding earcup. With Acoustic Noise Cancelling o
