The Bose® Aviation Headset Owner's Guide AM270261_00 V.pdf May 16 2003 DECLARATION OF CONFORMITY We, the offerer: Bose Corporation, The Mountain, Framingham, MA 01701-9168 USA Acknowledge our sole responsibility, that the product: Kind of equipment: Bose® Aviation Headset Type Designation: AHX-32-0# and AHX-34-0# In accordance with 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 15 June 2003 Bose Products B.V. Nijverheidstraat 8, 1135 GE Edam The Netherlands Nic Merks Vice President, Europe Manufacturer's authorized EU representative 2 AM270261_00 V.pdf May 16 2003 Cautions and Advisories Operational advisory The Bose® Aviation Headset is an active noise reducing (ANR) headset. 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 ANR mode. Note: The headset includes redundant circuitry to reduce the effects of such failures and allow for continued use of the headset in the ANR mode. If you experience loud tones and the related loss of communications, turn off the power switch. The headset will continue to provide communications in the passive noise-reducing mode. ANR mode 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 (a) (b) Battery power indicator Power switch Power source Your headset is one of two types: battery powered, or aircraft powered. If your headset is battery powered, make sure it is connected only to battery power. If your headset is aircraft powered, connect the headset to the aircraft power sources only as described in this guide. An aircraft powered headset will not operate properly if used with a Bose Series II Aviation Headset battery pack or with any commercial battery pack. 3 AM270261_00 V.pdf May 16 2003 Cautions and Advisories How use of the headset affects hearing safety The headset is intended for use with ANR turned on. Noise reduction and communications performance are reduced with ANR turned off. Volume control Make sure your aircraft communications system volume control is easily accessible. This control affects the strength of the communications signal coming into the headset, whether ANR is on or off. As pilot in command, you must be sure you can understand critical communications even with ANR off. In this case, you may need to turn up the aircraft communications system volume. Avoid setting the volume controls at levels high enough to impair your hearing during extended periods of headset use. Listening to the sounds of your aircraft With the headset'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 through a Bose Aviation Headset , be sure to limit the volume to safe levels that do not interfere with your ability to hear informational sounds and warning alarms, such as stall warnings or gear up, while piloting. Other cautions TriPort® headset earcup requirements Proper headset operation requires that the TriPort headset openings on the earcup are kept free of debris. The TriPort headset openings (Figure 2 on page 5) are located on the outside of each earcup and are comprised of two holes and a screen. 4 AM270261_00 V.pdf May 16 2003 Cautions and Advisories Figure 2 TriPort® headset openings TriPort headset openings Earcup inner screen The protective inner screen is critical to the headset's ability to reduce noise (Figure 3). Figure 3 Protective inner screen inside the earcup Earcup inner screen Do not attempt to remove, replace, or repair this screen. If operating 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, remove the batteries before storing the headset for extended periods. 5 AM270261_00 V.pdf May 16 2003 Contents Cautions and Advisories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Operational advisory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Power source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 How use of the headset affects hearing safety . . . . . . . . . . . . . . . . . . 4 Volume control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Listening to the sounds of your aircraft . . . . . . . . . . . . . . . . . . . . . 4 Using entertainment audio sources . . . . . . . . . . . . . . . . . . . . . . . . 4 Other cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 TriPort® headset earcup requirements . . . . . . . . . . . . . . . . . . . . . . 4 Earcup inner screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 We appreciate your choice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Headset and cable variations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Getting Your Headset Ready for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Locate the serial number for your product registration card . . . . . . . 10 Date of manufacture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Decide where you want the boom microphone . . . . . . . . . . . . . . 10 Removing an attached boom microphone cable . . . . . . . . . . . . . 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 Headset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Wearing it properly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Conditions related to fit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Microphone placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Operating the battery powered headset . . . . . . . . . . . . . . . . . . . . . . 20 Power button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Volume control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Notice the individual earcup controls . . . . . . . . . . . . . . . . . . 21 Controlling the volume of a single battery powered headset 22 Volume control using multiple headsets . . . . . . . . . . . . . . . . 22 Battery power indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6 AM270261_00 V.pdf May 16 2003 Contents Operating the aircraft powered headset . . . . . . . . . . . . . . . . . . . . . . 23 Power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Volume control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Notice the individual earcup controls . . . . . . . . . . . . . . . . . . 24 Controlling the volume of a single aircraft powered headset 24 Volume control using multiple headsets . . . . . . . . . . . . . . . . 24 Headset Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Instructions for continued airworthiness . . . . . . . . . . . . . . . . . . . . . . 25 Cleaning the headset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 General cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Earcup TriPort® headset openings . . . . . . . . . . . . . . . . . . . . . . . . 25 Ear cushions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Microphone windscreen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Earcup inner screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Standards Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Service & Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warranty period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . To return your headset to Bose for repair . . . . . . . . . . . . . . . . . . Contact information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ordering parts and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 34 34 34 34 35 7 AM270261_00 V.pdf May 16 2003 Introduction We appreciate your choice Congratulations on your purchase of a Bose® Aviation Headset . This headset combines Bose Acoustic Noise Cancelling® headset technology to electronically reduce unwanted aircraft noise, and Bose TriPort® headset technology for a smaller, lighter, more comfortable headset that delivers full-spectrum noise reduction. We believe it is the finest aviation headset you can own. Headset and cable variations The Bose Aviation Headset is available in variations 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 integrated control module · Flexible microphone boom with continuous position adjustments · Adjustable headband · Replaceable ear cushions · Replaceable fleece headband cushion · Replaceable windscreen · Cable-mounted clothing clip 8 AM270261_00 V.pdf May 16 2003 Introduction Figure 4 ...