TROUBLESHOOTING
 55 
|
 ENG
PROBLEM WHAT TO DO
Tap Control doesn’t 
function during   
extreme ambient  
noise conditions
Tap Control is disabled during extreme levels of  ambient noise 
to ensure proper noise reduction performance and intercom 
 communication quality. However, you can still set the noise 
 cancellation level to LOW in both earcups using the Acoustic Noise 
Cancelling (ANC) switch (see page 23).
Intercom communications
PROBLEM WHAT TO DO
Noise cancellation 
active, but no  
incoming audio
Make sure the volume controls are not set too low on the control 
module or the intercom.
Make sure the aircraft connectors are securely inserted into the 
aircraft control panel (see page 34).
Use a dierent seat location in the aircraft.
Low volume  
of incoming  
communications
Make sure the volume controls are not set too low on the control 
module or the intercom.
Make sure the INTERCOM operation switch is  correctly set for your 
intercom system (see page 26).
Make sure all headsets sharing the intercom have the INTERCOM 
operation switch in the correct position (see page 26).
Unplug all other headsets and see if the volume can be adjusted to 
an acceptable level.
Intermittent 
 communication
Make sure the aircraft connectors are securely inserted into the 
aircraft control panel (see page 34).
Use a dierent seat location in the aircraft.
Reduced volume  
in one ear only
Make sure the volume controls are not set too low on the control 
module or the intercom.
Make sure the INTERCOM operation switch is  correctly set for your 
intercom system (see page 26).
No stereo separation  
or communications  
in one ear only
Make sure the INTERCOM operation switch is  correctly set for  
your intercom system (see page 26).
Make sure the terminator cover is securely installed (see  
page 30).
Depending on how your audio jacks are wired, there may be 
only one channel of audio supplied to the headphone jack. If 
the  INTERCOM 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.