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AVIATION HEADSET

©2009 Bose Corporation, The Mountain,
Framingham, MA 01701-9168 USA
AM325239 Rev.00

Owner’s Guide

Summary of Contents for Aviation Headset X

Page 1: ...AVIATION HEADSET Owner s Guide ...

Page 2: ...EMC Directive 89 336 EEC and Article 10 1 of the Directive is in compliance with the following norm s or documents s Technical regulations EN55013 EN55020 Accredited by Bose Corporation The Mountain Framingham MA 01701 9168 USA Bose Products B V Vice President Europe Nijverheidstraat 8 1135 GE Edam Manufacturer sauthorized The Netherlands EU representative 15 June 2003 Nic Merks 2 00_AM270261 01_H...

Page 3: ...e is active when the headset control module power switch is set to ON Figure 1 or when the battery power indicator is lit The headset is in the passive mode when the power switch is set to OFF or when the battery power indicator is unlit Figure 1 On Off switch on a the battery powered headset and b the aircraft powered headset b a Battery power indicator Power switch Power source Your headset is o...

Page 4: ...set s active and passive noise reduction typical aircraft sounds from engines propellers warning alarms and other sound sources may not sound familiar We strongly advise you to make sure you can hear and recognize these sounds when using the Bose Aviation Headset while operating any aircraft Using entertainment audio sources When listening to in flight entertainment or a home audio source through ...

Page 5: ... problems indicate the need for screen replacement contact the Bose Aviation Headset Department Refer to Contact information on page 34 If the screen gets wet or any foreign objects become lodged on or adjacent to it follow the instructions in Headset Care and Maintenance on page 25 Storage Do not store the headset in an unventilated area or in direct sunlight If your headset is battery powered re...

Page 6: ...ble 11 Attaching the boom microphone cable 11 Clothing clip 12 Preparing to use battery power 13 Changing the optional operation switches 13 Inserting batteries 14 Preparing the aircraft powered headset for use 14 Attaching and removing the cable 14 Mounting the connector 15 Details on making the connections 16 Use proper adhesives 17 Mono stereo and helicopter connection diagrams 18 Using Your He...

Page 7: ...een 26 Replacement parts 26 Headband cushion 27 Removing environmental moisture 27 Replacing parts 27 Microphone windscreen replacement 27 Ear cushion replacement 27 Battery replacement 28 Battery door replacement 29 Headband cushion replacement 29 Boom microphone cable or connector access cover replacement 29 Troubleshooting 30 In case of difficulty 30 Technical Information 32 FAA Technical Stand...

Page 8: ...ns designed for general aviation and helicopter use There are also battery powered and aircraft powered versions Figure 4 on page 9 The communications cable for your headset may be either straight or coiled depending on the headset configuration you have purchased Features common to most variations Acoustic Noise Cancelling headset technology TriPort headset technology Communications cable with in...

Page 9: ...9 INTRODUCTION Figure 4 The a battery powered and b aircraft powered versions of the headset a b 00_AM270261 01_HeadsetXII book Page 9 Tuesday August 11 2009 2 27 PM ...

Page 10: ... firmly For more information on replacing the headband cushion see Headband cushion replacement on page 29 Date of manufacture Your headset s date of manufacture is an important part of your serial number It is the underlined four digit number that begins just after the first alphabetic letter in the serial number Example 031963E31920040E In this example the date of manufacture is 3192 The first d...

Page 11: ...e 6 Pulling the cable assembly straight out from the earcup Access cover Connector pins Cable assembly Connector pins L for left Attaching the boom microphone cable Before you attach the boom microphone make sure that the cable connector and its earcup connector are clean and free of debris 1 Use a Phillips or straight blade screwdriver to loosen the two screws on the access cover near the bottom ...

Page 12: ...ips 7 Attach the access cover to the connector panel on the earcup that does not have the boom mic attached Align the screws and tighten them to secure the cover If you moved the boom mic from one earcup to the other reuse the access cover you removed earlier CAUTION Be sure to try the headset and test its operation before flight Clothing clip Use the clothing clip Figure 8 for attaching the contr...

Page 13: ...on To disable smart shutoff set switch to OFF With the switch in OFF position the ANR system will not turn off until the power button is depressed and held for at least one second Note The smart shutoff function is designed to detect when the headset is not in use and shut off ANR to preserve battery power Smart shutoff turns off circuitry several minutes after you remove the headset Switch 5 Set ...

Page 14: ...ically keyed to ensure proper mating To order additional harnesses call Bose at 1 800 242 9008 Note The aircraft panel connector must be mounted and docu mented by qualified personnel to perform this type of avionics installation into the aircraft being used Consult your local FAA office or aviation authorities to determine the appropriate documentation required The Bose connector material number ...

Page 15: ...onnected to the back of the existing microphone and headphone jacks leaving existing jacks intact for use with conventional headsets This is usually the fastest installation method see Figures 1 4 for reference Audio shields should be connected to ground at the existing jack Caution Use of two headsets wired in parallel is not advised This may result in reduced performance Figure 12 Harness connec...

Page 16: ... a 1 2 amp circuit breaker 2 Black System ground Connect to the existing audio ground 3 White Phone communication L 4 Blue Phone communication R 5 White Microphone Hi audio Connect to the portion of the existing microphone jack that corresponds to the ring position of a headset microphone plug Do not connect to the tip PTT segment 00_AM270261 01_HeadsetXII book Page 16 Tuesday August 11 2009 2 27 ...

Page 17: ... and pins 5 6 are shielded twisted pairs with a shield termination exiting with a black white wire for each pair Connect shields to existing audio wiring shields or to audio ground if existing wiring is not shielded The Bose aircraft panel connector cannot be installed to an audio system using transformer coupled audio outputs Call the Bose Aviation Headset Department for details 800 287 0611 Conn...

Page 18: ...sting wiring to aircraft stereo intercom audio panel 10 32 V DC 1 2A 1V IN 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 Audio Exisiting PTT switch and wiring no connection to Bose headset Microphone Jack TPP PTT Barrel gnd Stereo Headphone Jack Barrel audio gnd Tip phone audio left Phone audio right Figure 15 Diagram of connections to a helicopter single jack...

Page 19: ...g sound or frequent brief losses of active noise reduc tion ANR may indicate an improper fit or blocked earcup ports Refer to Headset Care and Maintenance on page 25 for instruc tions on how to deal with a blockage In very loud conditions such as during takeoff you may experience brief reductions in ANR as the headset compensates for a momen tary pressure change If this problem continues when the ...

Page 20: ...enter the microphone should be 1 2 inch from the opening of your lips 3 Make sure the broad side of the microphone is facing your lips Do not purse your lips Operating the battery powered headset If your headset is battery powered read the control information below If your headset is aircraft powered refer to Operating the air craft powered headset on page 23 The battery powered headset uses Adapt...

Page 21: ...ol module of a battery powered headset Volume control left ear Volume control right ear Power button for On Off and LED brightness setting LED brightness control symbol Battery power indicator On Off control symbol Volume control Notice the individual earcup controls Separate knobs on the control module control the volume for each separate earcup Figure 18 Overall headset volume control requires a...

Page 22: ...e headset control module up to its maximum setting 3 Adjust the master volume on your aircraft intercom or radio until you can hear communications clearly Note This should be done in a noisy environment 4 Adjust the volume knobs on the headset control module to balance the volume between the left and right earcups 5 Turn ANR back ON 6 Turn down the aircraft intercom or radio master volume to the l...

Page 23: ...rged Operating the aircraft powered headset Power switch Turn on ANR by setting the power switch to ON Figure 19 Figure 19 The volume control knobs and power switch on the aircraft powered headset control module Volume control left ear Volume control right ear Power switch Volume control Overall headset volume control requires adjustments at both the air craft intercom or radio and at the headset ...

Page 24: ...ecrease or up to increase the volume of the earcup it controls Volume control using multiple headsets When an aircraft has more than one headset connected to its audio system the pilot in command should adjust the volume of his her Bose Aviation Headset as follows 1 Turn off ANR by setting the power switch to OFF 2 Turn up each volume knob on the headset control module to its maximum 3 Adjust the ...

Page 25: ...ing to the instructions General cleaning Gently wipe the outside surfaces of the headband connectors plas tic parts and headband cushion using a soft cloth moistened with water and mild soap Take special care when cleaning the ear cush ions and the outside surfaces of the earcups as described below Earcup TriPort headset openings The TriPort headset openings shown in Figure 20 must remain clean an...

Page 26: ...cleaning on page 25 If the ear cushions require more vigorous cleaning remove them from the earcups as shown in Replacing parts on page 27 Do not immerse ear cushions in water or any other liquid Microphone windscreen Remove the windscreen from the microphone as described in Microphone windscreen replacement on page 27 Wash the windscreen by immersing in mild soapy water Rinse air dry and reattach...

Page 27: ...for assistance Replacing parts Through normal use parts like windscreens and ear cushions may require periodic replacement Microphone windscreen replacement 1 Remove the band that secures the windscreen by rolling the band from the tip of the microphone 2 Gently pull the windscreen off of the microphone 3 Slide on the replacement windscreen and make sure that it fits completely over the microphone...

Page 28: ... Remove the old batteries 4 Make sure that the battery compartment contacts are clean 5 Install two AA alkaline batteries IEC LR6 as shown in Figure 22b Use of rechargeable batteries while possible will alter the accuracy of the battery power indicator Figure 22 a Sliding open the battery compartment door b Inserting new batteries into the control module bat tery compartment a b 6 Close the batter...

Page 29: ...lace the cushion Figure 23 1 On a protected surface turn the headset upside down With another person holding the headset open for you remove the old cushion from the magnesium headband 2 With the headband still held open align the center of the new cushion with the center of the headband and press firmly from the center toward the outside Figure 23 Removing and attaching the headband cushion Headb...

Page 30: ...me control on page 21 battery powered version or on page 23 aircraft powered version for instructions on volume adjustment Check the volume setting of intercom radio Check the headset aircraft connection Check stereo mono configuration switch See Changing the optional operation switches on page 13 Reduced active noise reduc tion intermittent clicking sounds or communication distortion in a loud en...

Page 31: ... without gaps Replace any cushions that have surface tears torn stitching joints large wrinkles or have become dried and stiff Crackling sound audible with headset turned on in a loud environment or ANR is inter mittent Adjust the earcup fit to eliminate the crackling sound Refer to Wearing it properly on page 19 If your headset is battery powered check to see if the battery is low indicated by fa...

Page 32: ...dance Typical output is 600 mV at 114 dB SPL To assure proper modulation of the radio it is recommended that an avionics technician adjust its input to match the output of the microphone Microphone Dynamic Impedance 5 ohm or 150 ohm Sensitivity Equivalent to M 87 M 101 Maximum ambi ent noise level 115 dBC and 105 dBA SPL Power source Battery powered 2 AA alkaline IEC LR6 Aircraft powered 10 to 32 ...

Page 33: ...ity T Temperature altitude A1 Vibration S U Voltage spike A Shock drop 12 times 1m onto concrete Environmental categories cited refer to RTCA DO 160D July 29 1997 and DO 214 March 4 1993 Headset weight 12 ounces 340 grams on the head when cable is supported by the mounting clip Headset size range Breadth 4 8 to 6 3 inches Height 4 5 to 5 7 inches Temperature and Altitude Category A Operating 5 to ...

Page 34: ...t to Bose for repair 1 Call to request return authorization instructions from Bose 2 Clearly mark the return information given to you on the outside of the package 3 Enclose your name address daytime telephone number and e mail address along with a description of the problem 4 Securely pack the headset 5 We recommend that you insure the headset and use a transport service that provides a tracking ...

Page 35: ...accessories The following accessories and customer replaceable components may be purchased directly from Bose Refer to contact information on page 34 Additional control module cable Specify battery powered or aircraft powered Ear cushions Carry bag Windscreen with attachment band Aircraft panel connector installation kit Battery door Fleece headband cushion Clothing clip 00_AM270261 01_HeadsetXII ...

Page 36: ... 2009 Bose Corporation The Mountain Framingham MA 01701 9168 USA AM325239 Rev 00 ...

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