Bose PROFLIGHT 2 Serie Notice D'utilisation page 52

Auto on/off
NOTE: This function is not available for Dual plug connectors.
PROBLEM
Headset does not
power on automatically
Headset does not
power off automatically
TR OUBL ES H O OTI N G
WHAT TO DO
Make sure the Auto on operation switch is set to ON.
See "Operation Switches" on page 23.
Check the aircraft specifications to see if the jack is getting power
from the aircraft's electrical system.
Make sure the Auto off operation switch is set to ON.
See "Operation Switches" on page 23.
Disconnect the headset from the aircraft. Then power on the
headset and wait 15 minutes.
It may take up to 9 minutes for the headset to power off when not
in use immediately after initial power up. If the headset has not
powered off after 15 minutes, contact Bose customer service.
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