Bose A20 Aviation 2010-2015 Owner's guide - Page 12

Inserting and replacing the batteries

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Preparing the Headset for Use 3. To change a switch position, use a pen or a small, flat-tipped screwdriver to gently move the switch. This table shows possible positions, default setting, and purpose for each switch. Switch 1. Auto Off function 2. Mono/ Stereo selection Options ON, OFF Default: ON Mono, Stereo Default: MONO Purpose Set at the factory to enable the Auto Off function. The headset will turn off after 3 to 9 minutes of inactivity. To disable Auto Off, set the switch to OFF. With the switch in OFF position, the Acoustic Noise Cancelling® system will not turn off until you press and hold the power button for at least one second For most configurations, set at the factory for mono audio systems (to provide audio in both ears). Set it to stereo (ST) if your aircraft has a stereo intercom. Auto Off functionality The Auto Off feature detects when the headset is not in use and shuts it off after several minutes to preserve battery power. The exact time it takes to shut off varies and can range between 3 to 9 minutes after you stop using the headset. When the headset is running on battery power only and is not plugged in to an intercom, it will shut off even when there is an auxiliary input present. If you are on a phone call and unplugged from an intercom, the headset will allow you to complete your call, then it will turn off approximately three seconds after the call is terminated. Note: To use the headset when unplugged from the intercom to listen to auxiliary input audio, or using Bluetooth wireless technology to make or receive calls, we recommend you disable the Auto Off feature for uninterrupted functionality. Inserting and replacing the batteries CAUTION: If the batteries do not fit correctly, do not force them in. Forcing an improper connection will cause permanent damage to the control module. To insert or replace the batteries 1. Turn off headset power. 2. Press down firmly on the battery compartment cover and slide the cover to release. The battery door is tethered. Do not detach the door from module. 3. Insert the two supplied alkaline AA batteries into the control module, observing proper polarity. 4. Replace the battery compartment cover. WARNING: Replace batteries with alkaline batteries only. Do not use any other battery chemistries. 12 - English

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Preparing the Headset for Use
12 - English
3.
To change a switch position, use a pen or a small, flat-tipped screwdriver to
gently move the switch.
This table shows possible positions, default setting, and purpose for each switch.
Switch
Options
Purpose
1. Auto Off
function
ON, OFF
Default: ON
Set at the factory to enable the Auto Off function. The
headset will turn off after 3 to 9 minutes of inactivity. To
disable Auto Off, set the switch to OFF. With the switch
in OFF position, the Acoustic Noise Cancelling
®
system
will not turn off until you press and hold the power
button for at least one second
2. Mono/
Stereo
selection
Mono, Stereo
Default: MONO
For most configurations, set at the factory for mono
audio systems (to provide audio in both ears). Set it to
stereo (ST) if your aircraft has a stereo intercom.
Auto Off functionality
The Auto Off feature detects when the headset is not in use and shuts it off after
several minutes to preserve battery power. The exact time it takes to shut off varies
and can range between 3 to 9 minutes after you stop using the headset.
When the headset is running on battery power only and is not plugged in to an
intercom, it will shut off even when there is an auxiliary input present.
If you are on a phone call and unplugged from an intercom, the headset will allow
you to complete your call, then it will turn off approximately three seconds after the
call is terminated.
Note:
To use the headset when unplugged from the intercom to listen to auxiliary input
audio, or using
Bluetooth
wireless technology to make or receive calls, we recommend
you disable the Auto Off feature for uninterrupted functionality.
Inserting and replacing the batteries
CAUTION:
If the batteries do not fit correctly, do not force them in. Forcing an
improper connection will cause permanent damage to the control module.
To insert or replace the batteries
1.
Turn off headset power.
2.
Press down firmly on the battery compartment cover and slide the cover to
release. The battery door is tethered. Do not detach the door from module.
3.
Insert the two supplied alkaline AA batteries into the control module, observing
proper polarity.
4.
Replace the battery compartment cover.
WARNING:
Replace batteries with alkaline batteries only. Do not use any other battery
chemistries.