Intercom Communications - Bose PROFLIGHT Owner's Manual

Intercom communications

PROBLEM
Noise cancellation
active, but no incoming
audio
Low volume
of incoming
communications
Intermittent
communication
Reduced volume in one
ear only
No stereo separation or
communications in one
ear only
TR OUBL ES H O OTI N G
WHAT TO DO
Make sure the volume controls are not set too low on the control
module (see page 38) or the intercom.
Make sure the aircraft connectors are securely inserted into the
aircraft control panel. See "Aircraft Connectors" on page 29.
Use a different seat location in the aircraft.
Make sure the volume controls are not set too low on the control
module (see page 38) or the intercom.
Make sure the Intercom operation switch is correctly set for your
intercom system. See "Operation Switches" on page 22.
Make sure all headsets sharing the intercom have the Intercom
operation switch in the correct position. See "Operation Switches"
on page 22.
Unplug all other headsets and see if the volume can be adjusted to
an acceptable level.
Make sure the aircraft connectors are securely inserted into the
aircraft control panel. See "Aircraft Connectors" on page 29.
Use a different seat location in the aircraft.
Make sure the volume controls are not set too low on the control
module (see page 38) or the intercom.
Make sure the Intercom operation switch is correctly set for your
intercom system. See "Operation Switches" on page 22.
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.
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