Bose Aviation Headset X Bedienungsanleitung
The Bose
®
Aviation Headset X
Owner’s Guide
2
Safety Information
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 X
Type Designation: AHX-02, AHX-03, AHX-04, AHX-05,
AHX-06, AHX-07, AHX-08
is in compliance with the following norm(s) or document(s):
EMC-directive 89/336/EEC
Accredited test laboratory:
Mikes Product Service GmbH, Ohmstrasse 2-4, D-94342
Stasskirchen, Germany
EC Certificate of Conformity #: E9 99 03 14490 008,
TCF#: Z16260
Bose Products B.V. Nic Merks
Nijverheidstraat 8, 1135 GE Edam Vice President Europe
The Netherlands Manufacturer’s authorized
EU representative
5 April 1999
3
Cautions and Advisories
Operational advisory
The Bose
®
Aviation Headset X, an active noise reducing (ANR) headset,
is a complex electronic device. As with any complex device, it is
possible for this headset to fail during operation. Failure may include
loud tones, distortion, and loss of communications signal in the
headset when used in the ANR mode. The headset includes redundant
circuitry to reduce the effects of such failures.
Note
: Such failures could prevent continued use of the headset in the
ANR mode.
The headset is in the ANR mode when the control module power
switch, shown in Figures 5 and 6, is set to ON. The headset is in the
passive mode when the power switch is set to OFF.
If you experience loud tones and the related loss of communications,
turn off the power switch. The headset will continue to provide com-
munications in the passive noise attenuation mode.
If you own a battery powered headset, it should be connected only to
the battery power. An aircraft powered headset should be connected
to the aircraft power sources only as described in this guide. The
aircraft powered headset will not operate properly if used with a Bose
Series II battery pack or with any commercial battery pack.
Hearing safety
Note
: The headset is intended to be used with ANR turned on. Noise
reduction and communications performance are reduced with the
headset turned off.
Volume control
The volume controls affect the volume of the communications signal
coming into the headset whether the ANR is on or off. As pilot in
command, you must ensure that with ANR off you can understand
critical communications. You may need to turn up the aircraft commu-
nications system volume when the headset is turned off. The aircraft
communications system volume control should be easily accessible.
Avoid setting the volume controls at levels high enough to impair your
hearing during extended periods of headset use.
4
Cautions and Advisories
Listening to your aircraft
With the headset’s combination of both active and passive attenuation,
typical aircraft sounds (for example, those from engines, propellers,
warning alarms, and other sound sources) may sound different to you.
We strongly recommend that, as a responsible pilot, you ensure that
you can hear and recognize these sounds when using the Bose
®
Aviation Headset X while operating any aircraft.
Entertainment audio sources
In addition, should you choose to listen to in-flight entertainment
through a Bose Aviation Headset X while piloting, we remind you 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.
Cautions
Protective inner screen
The protective inner screen, shown in Figure 1, is a component critical
to the headset’s ability to reduce noise. Do not attempt to remove,
replace, or repair this screen. If operating problems indicate the need
for screen replacement, contact the Bose Aviation Headset Depart-
ment. If the screen becomes wet or if foreign objects become lodged
on or adjacent to it, proceed as described in General Care and Mainte-
nance.
Earcup TriPort™ maintenance
Proper headset operation requires that the earcup TriPort openings be
kept free of debris. The TriPort openings, shown in Figure 1, are
located on the outside of each earcup and are comprised of two holes
and a screen.
Storage
Do not store the headset in an unventilated area or in direct sunlight. If
the headset is battery powered, remove the battery before storing the
headset for extended periods.
5
Cautions and Advisories
Water damage
Do not attempt to use or repair the headset if it has been immersed in
water. Contact the Bose
®
Aviation Headset Department for assistance.
See the inside back cover for address information.
Chemicals
Certain chemicals may harm the headset. Seek information about
specific chemicals from the chemical manufacturers.
6
Contents
Safety Information .................................................................................................. 2
Cautions and Advisories
Operational Advisory ..................................................................................... 3
Hearing Safety ............................................................................................... 3
Cautions ........................................................................................................ 4
Introduction
Headset introduction ..................................................................................... 8
Headset description ...................................................................................... 9
Common features .................................................................................. 9
Boom microphone cable variations ....................................................... 9
Boom microphone cable variation table.............................................. 10
Preparing the Bose®Aviation Headset X
Preparing the Bose Aviation Headset X for use ......................................... 11
Attaching or relocating the boom microphone cable ................................. 11
Detaching the boom microphone cable
or connector access cover .................................................................. 11
Attaching the boom microphone cable ............................................... 12
Attaching the connector access cover ................................................ 12
Warranty card ....................................................................................................... 12
Using the Bose®Aviation Headset X
Wearing the Headset................................................................................... 13
Microphone Placement ............................................................................... 14
Operating the battery powered headset ..................................................... 14
Power switch........................................................................................ 14
Control module mounting clip ............................................................. 14
Stereo/mono switch ............................................................................. 15
LED power indicator ............................................................................ 15
Volume control ..................................................................................... 16
Volume control using multiple headsets.............................................. 16
7
Contents
Operating the installed headset .................................................................. 17
Power switch........................................................................................ 17
Volume control ..................................................................................... 17
Volume control using multiple headsets.............................................. 18
Control module mounting clip ............................................................. 18
Aircraft panel connector ...................................................................... 18
Installing the aircraft panel connector ................................................. 19
General Care and Maintenance
Instructions for continued airworthiness..................................................... 23
Cleaning Instructions ........................................................................... 23
Replacing the ear cushion ................................................................... 25
Replacing the wind screen .................................................................. 26
Replacing the battery ........................................................................... 26
Replacing the headband cushion ........................................................ 27
Replacing the boom microphone cable or connector access cover .. 27
Troubleshooting
In case of difficulty ...................................................................................... 28
Technical Information........................................................................................... 30
FAA technical standards order ................................................................... 31
Service and warranty Information
Ordering spares and accessories ............................................................... 32
Warranty period ........................................................................................... 32
Service ......................................................................................................... 33
8
Headset introduction
Congratulations on purchasing the Bose
®
Aviation Headset X. This
headset uses advanced electronic noise reduction circuitry and
acoustical design to reduce aircraft noise. The headset reduces noise
with only slight headband clamping force, and it can be worn comfort-
ably for extended periods.
You may have a battery powered version of the Bose Aviation
Headset X, or an installed version. The illustrations in Figure 1 show
the two different headsets.
Figure 1
Headset components
battery-
powered
control
module
mounting
clip
adjustable
headband
protective
inner screen
ear cushion
flexible
microphone
boom
wind
screen
Introduction
Earcup TriPort™
openings aircraft
installed
control
module
9
Introduction
Headset description
The Bose
®
Aviation Headset X comes in several variations for both
general aviation and helicopter use. These variations are defined by the
configuration of the attaching cable and the headset’s power source.
Common features
Headsets have the following features (see Figure 1).
• Acoustic Noise Cancelling
®
earcups
• An adjustable headband
• Replaceable ear cushions
• A flexible microphone boom with positional adjustment
• A replaceable wind screen
• A cable with an integrated control module
• A control module mounting clip (battery powered version)
• A cable-mounted clothing clip (installed version)
• A replaceable fleece headband cushion
Boom microphone cable variations
All boom microphone cables assemble into the headset as described
in Preparing the Bose Aviation Headset X on page 11. Depending upon
the headset configuration purchased, the boom microphone cable will
be one of the types described in the Boom microphone cable variation
table on page 10.
10
Use Power Cable Microphone Plug Controls
Source Type
Battery Straight Electret Standard • ON/OFF switch
(9V) headphone • Volume control
and • Stereo/Mono switch
microphone • LED power indicator
Aircraft Straight Electret For aircraft • ON/OFF switch
(10-32V) panel • Volume control
connector (dual thumb wheel)
Aircraft Coiled Electret For aircraft • ON/OFF switch
(10-32V) panel • Volume control
connector (dual thumb wheel)
Battery Coiled Electret U174 • ON/OFF switch
(9V) • Volume control
• LED power indicator
Battery Coiled Dynamic U174 • ON/OFF switch
(9V) low • Volume control
impedance • LED power indicator
(10-32V) Straight Electret For aircraft • ON/OFF switch
Aircraft panel • Volume control
connector (dual thumb wheel)
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Introduction
Boom microphone cable variation table
Note:
You will need to verify the type of headset connection required
by your aircraft communications panel before choosing a configuration
from the table below.
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4
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