Bose ProFlight Series 2 Aviation English Owners Guide - Page 48

T RSOtUaBtLuEsSLHiOgOhTtsI N G PROBLEM WHAT TO DO No stereo separation or communications in one ear only Make sure the Intercom operation switch is ­correctly set for your intercom system. See "Operation Switches" on page 22. Make sure the terminator cover is securely installed. See "Move the microphone" on page 25. Depending on how your audio jacks are wired, there may be only one channel of audio supplied to the headphone jack. If the ­Intercom (MON-ST) operation switch is set to ST and you only hear communications on one side, set the operation switch to MON to play audio on both sides. 5-pin XLR models are mono audio only. Audio PROBLEM Reduced noise ­cancellation, intermittent clicking sounds, or communication distortion in a loud environment WHAT TO DO 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 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. Squealing or whistling sound when the headset powers on Make sure the headset orientation is correct. Use the Left T and Right U markings on the headset to orient the headset correctly. Make sure the StayHear+ tips are firmly seated on the earbuds. Make sure the earbuds are fully seated in your ears. See "Fit the earbuds to your ear" on page 15. Make sure the proper sized StayHear+ tips are being used. See "Choose the correct StayHear+ tips" on page 15. Make sure the earbud openings are clean and free of debris. Low rumbling sound with the headset turned on in a quiet environment 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. | 4 8 E N G