The headset is shipped with factory-set operation defaults. If you want to alter these defaults, you can change the operation switches located inside the control module battery compartment.
- A20® Aviation Headset
Opening the battery compartment
Press down firmly on the finger indent and slide the cover down. The cover is tethered to the module. Do not attempt to detach it.
Note: The battery compartment cover is designed to remain securely closed. You may need to use extra force when pressing down to release the cover.
The operation switches
The operation switches control: Priority (BT-AUX), Intercom (MON-ST), Auto-On feature and Auto-Off feature.
The Auto-On feature is only available for aircraft powered versions
The Intercom (MON-ST) option is only available for headset configurations that support two-channel or stereo intercom systems
the priority (bt-aux) option is only available for bluetooth® headsets
Changing the operation switches
Open the battery compartment
If batteries are installed, remove them. In the battery compartment, you can observe and change the switch positions
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 operation switch
priority (available for bluetooth® headsets only):
establishes priority between two secondary audio sources. select bt to give the bluetooth (wireless) connection higher priority. select aux to give the wired connection higher priority
intercom (available for headset configurations that support two-channel or stereo intercom systems only):
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-on (available for aircraft powered headset versions only):
set at the factory to enable the auto-on function. the headset will turn on when aircraft power is available. to disable auto-on, set the switch to off. with the switch in off position, the user must manually turn the headset on.
set at the factory to enable the auto-off function. the headset will turn off after three to nine minutes of inactivity. to disable auto-off, set the switch to off. with the switch in off position, the user must manually turn the headset off.