Bose A30 Aviation Multilingual Owners Guide - Page 55

T roubleshooting PROBLEM Tap Control doesn't function during ­ extreme ambient noise conditions WHAT TO DO 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 Noise cancellation active, but no incoming audio WHAT TO DO 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 different 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 different 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. | 5 5 E N G