Bose PROFLIGHT 2 Serie Notice D'utilisation page 50

PROBLEM
Crackling sound audible
with headset turned on
in a loud environment,
or noise cancelling is
intermittent
WARNING: If the headset emits any loud noise and related loss of communications
while in the Acoustic Noise Cancelling mode, turn the power off. The
headset will continue to provide communications in the passive noise
reducing mode.
Microphone
PROBLEM
No sound to the
microphone
TR OUBL ES H O OTI N G TR OUBL ES H O OTI N G
WHAT TO DO
Make sure the headset orientation is correct. Use the Left T and
Right U markings on the earbuds to orient the headset correctly.
Make sure the earbuds fit correctly.
See "Choose the correct StayHear+ tips" on page 16.
Make sure the StayHear+ tips are clean and free of debris.
See "Clean the headset" on page 42.
Remove the microphone, then attach again.
See "Move the microphone" on page 26.
If using battery power, check if the battery is low.
See "Power light" on page 33.
If using aircraft power, make sure the voltage powering the
headset is no less than 10 VDC.
WHAT TO DO
Make sure the white surface on the microphone is facing your
mouth. See "Adjust the microphone" on page 18.
Make sure the microphone is fully connected to the headband.
See "Microphone Placement" on page 26.
Check the Squelch level on the intercom. The Squelch level may
need to be adjusted.
Try another intercom position in the aircraft.
For Bluetooth phone calls, make sure the batteries are fresh and
correctly installed. See "Batteries" on page 29.
NOTE: For Bluetooth headsets only.
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