Bose A20 Guia Del Usuario página 31

Problem What to do
Low volume • On the control module, make sure the volume controls are not set
of incoming
communications
• On the intercom/radio, make sure the volume controls are not set
• Inside the battery compartment, make sure the Intercom
• Check that all headsets sharing the intercom have the Intercom
• Unplug all other headsets and see if the volume can be adjusted
Intermittent • Make sure the headset is firmly connected to the aircraft panel.
communication
• Try the headset in a different seat location.
Reduced volume in • On the control module, make sure the volume controls are not set
one ear only
• Inside the battery compartment, make sure the Intercom
No stereo • If your aircraft has a mono audio system, verify that the Intercom
separation or
communications in
one ear only
• Depending on how your audio jacks are wired, there may be
Audio
Problem
Reduced Acoustic
Noise Cancelling
®
noise reduction,
intermittent
clicking sounds,
or communication
distortion in a loud
environment
too low. See "Intercom volume controls" on page 18.
too low.
(MON-ST) switch is correctly set for your intercom system.
See "The operation switches" on page 11-12.
(MON-ST) switch in the correct position.
to an acceptable level.
too low. See "Intercom volume controls" on page 18.
(MON-ST) switch is correctly set for your intercom system.
See "The operation switches" on page 11-12.
(MON-ST) switch is set to MON. Refer to "The operation
switches" on page 11-12.
only one channel of audio supplied to the headphone jack. If
the Intercom (MON-ST) switch is set to ST and you only hear
communications on one side, set the switch to MON. This will
play audio on both sides. U174 and 5-pin XLR plugs are mono
audio only.
What to do
• On the outside of each earcup, make sure the TriPort
openings are not blocked. If dust or dirt is present, carefully
remove the debris using tweezers. Do not vacuum or blow out
debris.
• Make sure there are no air gaps around the ear cushion seals.
If ear cushions appear worn, they should be replaced. Refer to
"Ear cushion replacement" on page 28.
Warning: If the headset emits any loud noise and related loss of
communications while in the Acoustic Noise Cancelling
mode, turn off the power switch. The headset will
continue to provide communications in the passive noise
reducing mode.
Troubleshooting
headset
®
English - 31