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TROUBLESHOOTING
In case of difficulty
Look for the problem in the left column of the table, then follow the
instructions on “What to do” in the right column. If the problem per-
sists, contact the Bose® Aviation Headset Department, using the
contact information on page 34 of this guide, for assistance.
Problem What to do
Communication, but no
active noise reduction in
either ear
Make sure the headset ANR is set to ON.
If using aircraft power, check the aircraft fuse or circuit breaker.
If using battery power, make sure that the batteries are fresh
and correctly installed.
Check the battery power indicator. Refer to page 22 for
description of LED indicator.
Active noise reduction, but
no communication, or very
low volume in both ears
Check to see if the volume controls are set too low. Refer to
“Volume control” on page 21 (battery powered version) or on
page 23 (aircraft powered version) for instructions on volume
adjustment.)
Check the volume setting of intercom/radio.
Check the headset aircraft connection.
Check stereo/mono configuration switch. See “Changing the
optional operation switches” on page 13.
Reduced active noise reduc-
tion, intermittent clicking
sounds, or communication
distortion in a loud environ-
ment
Check the TriPort® headset openings on the outside of each
earcup to ensure they are not blocked. If dust or dirt is present,
carefully remove the debris using tweezers. Do not vacuum or
blow out debris.
Reduced volume in one ear
only
Check to see if the volume control is set too low. Refer to “Vol-
ume control” on page 21 (battery powered version) or on
page 23 (aircraft powered version) for instructions on volume
adjustment.
Check stereo/mono configuration switch. See “Changing the
optional operation switches” on page 13.
00_AM270261-01_HeadsetXII.book Page 30 Tuesday, August 11, 2009 2:27 PM
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