Bose ProFlight Series 2 Aviation English Owners Guide - Page 49

Microphone, WARNING

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T RSOtUaBtLuEsSLHiOgOhTtsI N G PROBLEM Crackling sound audible with headset turned on in a loud environment, or noise cancelling is intermittent 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 15. Make sure the StayHear+ tips are clean and free of debris. See "Clean the headset" on page 41. Remove the microphone, then attach again. See "Move the microphone" on page 25. If using battery power, check if the battery is low. See "Power light" on page 32. If using aircraft power, make sure the voltage powering the headset is no less than 10 VDC. 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 WHAT TO DO Make sure the white surface on the microphone is facing your mouth. See "Adjust the microphone" on page 17. Make sure the microphone is fully connected to the headband. See "Microphone Placement" on page 25. 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 28. NOTE: For Bluetooth headsets only. | 4 9 E N G

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STATUS LIGHTS
49
|
ENG
TROUBLESHOOTING
PROBLEM
WHAT TO DO
Crackling sound
audible with headset
turned on in a loud
environment, or
noise cancelling is
intermittent
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 15.
Make sure the StayHear+ tips are clean and free of debris.
See “Clean the headset” on page 41.
Remove the microphone, then attach again.
See “Move the microphone” on page 25.
If using battery power, check if the battery is low.
See “Power light” on page 32.
If using aircraft power, make sure the voltage powering the
headset is no less than 10 VDC.
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
WHAT TO DO
No sound to the
microphone
Make sure the white surface on the microphone is facing your
mouth. See “Adjust the microphone” on page 17.
Make sure the microphone is fully connected to the headband.
See “Microphone Placement” on page 25.
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 28.
NOTE: 
For
Bluetooth
headsets only.