Bose Aviation Headset X Owner's guide - Page 3

3

C

AUTIONS

AND

A

DVISORIES

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 com-

munications 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

(b)

(a)

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 head-

set 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.

Section	Page
Operational advisory	3
Figure 1	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
Figure 2	5
Earcup inner screen	5
Figure 3	5
Storage	5
We appreciate your choice	8
Headset and cable variations	8
Figure 4	9
Locate the serial number for your product registration card	10
Figure 5	10
Date of manufacture	10
Decide where you want the boom microphone	10
Removing an attached boom microphone cable	11
Figure 6	11
Attaching the boom microphone cable	11
Figure 7	12
Clothing clip	12
Figure 8	12
Preparing to use battery power	13
Figure 9	13
Changing the optional operation switches	13
Inserting batteries	14
Figure 10	14
Preparing the aircraft powered headset for use	14
Attaching and removing the cable	14
Figure 11	15
Mounting the connector	15
Figure 12	15
Details on making the connections	16
Figure 13	18
Figure 14	18
Figure 15	18
Wearing it properly	19
Figure 16	19
Conditions related to fit	19
Microphone placement	20
Figure 17	20
Operating the battery powered headset	20
Power button	21
Figure 18	21
Volume control	21
Battery power indicator	22
Operating the aircraft powered headset	23
Power switch	23
Figure 19	23
Volume control	23
Instructions for continued airworthiness	25
Cleaning the headset	25
General cleaning	25
Earcup TriPort® headset openings	25
Figure 20	25
Ear cushions	26
Microphone windscreen	26
Earcup inner screen	26
Headband cushion	27
Replacing parts	27
Microphone windscreen replacement	27
Ear cushion replacement	27
Figure 21	27
Battery replacement	28
Figure 22	28
Battery door replacement	29
Headband cushion replacement	29
Figure 23	29
Boom microphone cable or connector access cover replacement	29
In case of difficulty	30
FAA Technical Standards Order	33
Warranty period	34
Service	34
To return your headset to Bose for repair	34
Contact information	34

Bose Aviation Headset X Owner's guide - Page 3

Operational advisory, Power source - used

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