Bose X User Manual download pdf (Page 3)

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 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.

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Bose X User Manual Page 3