Bose II manual

Bose ® Aviation Headset Series II Owner's Guide[...]

2 As with any complex electronic device, it is possible for this headset to experience a failure during operation. Such a failure may include loud tones, distortion and loss of communications signal in the headset when used in the active or “on” position. The system is “on” when the rocker switch is “up”. Note: This failure could pr eve[...]

3 Operational Advisories This headset meets or exceeds all requir ements of EN352-4, 1996 (European Standar d-Hearing Pr otectors-Safety Requirements and T esting-Part 4: Level-Dependent Ear Muffs). • The wearer should ensur e that: i. The ear muffs ar e fitted, adjusted, and maintained in accordance with the manufactur er’ s instructions. ii. [...]

4 Declaration of Conformity W e, the offer er: Bose ® Corporation, The Mountain, Framingham, MA 01701-9168 USA acknowledge our sole responsibility , that the product: Kind of equipment: Headset T ype designation: Bose Aviation Headset Series II in accordance with EMC Directive 89/336/EEC and Article 10(1) of the Directive, is in compliance with th[...]

5 Operational Advisories ............................................................ 2 Intr oduction ............................................................................. 6 Description ....................................................................... 6 W ar ranty car d .................................................................[...]

6 Introduction Description Congratulations on your purchase of the Bose ® Aviation Headset Series II. This headset uses an advanced combination of electro-acoustical noise reduction cir cuitry and a patented cushioning system to signifi- cantly reduce air craft noise. It actively r educes noise elements in addition to muffling noise. The patented [...]

7 Using the Bose ® Aviation Headset For pr oper headset fit Note: The headset must be worn with the Bose logo (located on the earcups) facing forwar d. T o achieve comfort and good performance, adjust both sides of the headband equally to pr ovide a comfortable fit. T o achieve a good seal, lightly grasp both earcups and position them so that your[...]

8 Inter connect plug The headset interconnect plug connects the headset cable to a power source. The power sour ce can be an installed connector in the air craft’ s control panel or an adapter cable connected to a por table battery pack. The interconnect plug is designed for quick connection and r emoval. T o ensur e correct pin alignment, the pl[...]

9 Adjusting the volume The volume for your headset is controlled by the gr ooved knobs located on the front side of the headband arms. Avoid setting your volume contr ols at high levels that may af fect your hearing during extended periods of headset use. Note: The volume controls and the active noise r educing cir cuitry work only when the headset[...]

10 Micr ophone boom r elocation T o suit your flying prefer ence, the headset boom can easily be moved from one ear cup to the other . 1. Unscrew the r etaining knob on the boom mic mount. 2. Unplug the mic cable fr om the headband arm. Figure 7 Unplugging the mic cable 3. Find the cr escent-shaped flanges on the top and bottom of the boom’ s att[...]

11 4. Plug the mic cable into the headband arm. Y ou may want to use the adjustment scr ew to tighten the tension of the clip on the boom mic. The adjustment screw is on the flat end of the clip. Use a 3 ⁄ 32 in. hex wrench to tighten it. Do not over -tighten. Experience in using the headset helps establish your sense of how it should sound. If y[...]

12 Using the Bose ® Aviation Headset Powering the headset The Bose Aviation Headset Series II may be power ed in one of two ways: a portable battery pack, or a connector installed into the aircraft’ s instrument panel. Portable batter y pack The portable battery pack is available in two versions: NICAD rechar geable and alkaline. The NICAD recha[...]

13 Using the Bose ® Aviation Headset 2 4 1 6 5 Spin the batteries once with thumb to seat them securely . 3 Inserting batteries into the alkaline batter y pack[...]

14 12 Click Click 11 10 9 8 7 Using the Bose ® Aviation Headset[...]

15 Installed connector An optional installed connector is available for pilots who want to har dwire the DC power , incoming audio, and outgoing microphone functions per manently into their plane. The panel mount receptacle comes wired with a 6 foot har ness to simplify the installation process. T o order this connector , contact the Bose Aviation [...]

16 Using the Bose ® Aviation Headset 5. Approved adhesives for use with this connector are Ciba-Geigy Uralane 5754- A/B, Lord 710, or VTCS-6 Vibratite. Do not let any cyanoacrylate-based adhesives (e.g., Loctite), flux remover , or other caustic compounds come into contact with the installed connector body . These chemicals will cause deterioratio[...]

17 Installed DC power connector An optional installed connector is available for pilots who want to use their plane’ s DC power , instead of the battery pack, with the portable adapter cable. The connector’ s small size allows it to be installed in a convenient location in the control panel, for example, near the head- phone and mic jacks. Inst[...]

18 Cleaning instructions Clean the headset exterior and cushions by wiping them with a moist cloth. Mild soap may be used. CAUTION: Do not immerse the headset in water . The headband cover is made from leather and sheepskin. If it becomes soiled, it may be removed and cleaned using mild soap. T o r emove the headband cover , peel apart the hook and[...]

19 T o install a new foam liner Note: The left and right foam liners are dif ferent. 1. Lift the old foam liner out of the ear cup. 2. Place the new foam liner in the ear cup. With the correct foam liner in place, nesting along the walls of the cavity , its half-moon shaped opening should cover the microphone, and the small opening in the foam line[...]

20 Communication but no active noise r eduction in both ears. Problem What to do In Case of Dif ficulty • Make sure that your headset is powered, and that the power switch is “ON.” • If using DC power from the aircraft, check the aircraft fuse or breaker . • If using the NICAD battery pack, verify that it is charged. • If using the alka[...]

21 Sound pr essure levels (SPL) are r elative to 20 micro Pascal. Earphones Damage could occur to avionics equipment if it was manufactured for use only with 600 Ω (ohm) headsets. If in doubt, consult the avionics equipment manufacturer . Impedance In mono mode: 480 Ω (on) and 190 Ω (off) at 1kHz. In stereo mode: left, 500 Ω (on), 190 Ω ([...]

22 T echnical Information Headset Weight 22 oz. (567 grams) T emperature and Altitude (Category A1) Operating T emperature: +5 ° to +131 ° F (-15 ° to +55 ° C) Storage T emperature: -67 ° to +158 ° F (-55 ° to +70 ° C) Altitude: 15,000 ft. maximum pressur e altitude for full cancellation The Bose ® Aviation Headset Series II headset, adapt[...]

23 Service Bose ® Aviation Headset Service Depar tment 145 Pennsylvania Avenue Framingham, MA 01701-9168 U.S.A. TEL: 1-800-233-4416 (U.S.) 1-508-879-7330, ext. 62006 (outside U.S.) F AX: 1-508-820-3465 Contact the Bose Aviation Headset Service Department for: • accessories. • technical advice. • installation information. • warranty and rep[...]

24 Limited warranty Bose ® product What is covered All parts defective in material or workmanship. For how long At least one year from the purchase date, or longer if specified in your owner’s manual, but not longer than five years from the purchase date. What we will do We will, at our sole option, repair or replace any defective parts free of [...]

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© 1997 Bose Corporation The Mountain, Framingham, MA 01701-9168 USA JN97884 PN183953 Rev. 01 AM183953 Rev. 01[...]