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No audio from product
If your product seems to be set up properly but does not produce sound, try the following:
On the control module, try the MIX position
If noise from the intercom or aircraft is loud enough, the headset might recognize it as intercom audio. This will cause auxiliary audio connected to your headset to mute If the switch on the headset control module is in the Mute position. If auxiliary audio does not mute when using the middle MIX position, try adjusting any applicable intercom settings or use MIX and adjust levels so intercom audio is not missed.
Check the position of the Multi-function switch.
The Multi-function switch on the control module needs to be in either the top or middle postion. Only intercom audio is heard if the switch is in the bottom position. When the switch is in the top position, intercom audio will override the auxiliary input audio. Move the switch to be sure it is not stuck in between two settings.
Check the AUDIO switch on the control module.
- Remove the batteries from the control module
- Determine the position of the AUDIO switch
- Set to Mono (right) by default. For use with mono intercoms and U174 connections. Routes single channel audio to both ears
- Set to ST (left) if the aircraft has a stereo intercom
- If necessary, change the position of the switch using a push-pin or paperclip
- Reinstall the batteries. Match the polarity on the batteries to the markings inside the battery compartment
If you have ever unplugged the microphone cable from the headset, disconnect it again and check for debris or damage at the connectors.
Make sure the connectors on the cable and at the headset are both free of debris (dirt, lint, dust, etc.) or damage, which could prevent a proper connection. For more info, see Attaching or moving the boom microphone on the headset.
Check the volume setting on the intercom/radio.
Adjust the volume knob on the intercom and/or radio and listen for a change in the volume level.
Check the audio panel settings.
On the audio panel, adjust the squelch setting to match the headset mic level. Open or close the squelch setting while speaking into the mic until the mic signal is clear and consistent. Some audio panels have an Auto-Squelch (VOX) feature which can still be manually adjusted using squelch controls.
Be sure the volume level is turned up for both earcups.
On the headset control module, check that the volume knobs are both adjusted to the desired level.
See if the light is lit on the headset control module.
The LED light on the control module should light when powered on. Press the power button once to turn on the headset and see if the light is lit. For more info, see Understanding LED indicator status lights and information.
Determine if the 6-pin-to-G/A adapter is being used.
If using the 6-pin-to-G/A adapter cable, check the condition of the cable and its connectors. If the adapter is damaged, replace it.
Plug in a different headset.
If available, connect a different headset to the aircraft to determine if the issue is related to the aircraft panel or its settings.
Connect the headset to a different panel jack or, if possible, to another aircraft.
Non-TSO equipment, worn jacks/loose connections, or incorrectly wired jacks (i.e. reversed stereo or mic / ground wires) in the aircraft can cause issues. If available, try connecting the headset to another jack in the aircraft or to jacks in a separate aircraft. If the headset works fine when connected elsewhere, the panel jack or wiring to the jack is the issue.
Disconnect all other headsets connected to the aircraft.
Unplug any other headsets connected to the aircraft intercom. If the issue goes away, it is related to another headset. Reconnect the headsets one-by-one to determine which, then check the settings for that headset.
Determine if the Multi-function switch clicks twice when moved up from the off position.
If the switch does not click a second time when being moved from the bottom (OFF) position, the top position is not being fully engaged. Follow the link for more information on how to service your product. Depending on your product and region, you will be provided a contact number or the ability to setup service online.
Click here to start service
Click here to start service
The Down Cable may need service.
If the steps provided do not resolve your issue, the Down Cable may need service. Follow the link for more information on how to service your product. Depending on your product and region, you will be provided a contact number or the ability to setup service online.
Click here to start service
Click here to start service
Your product may need service.
If the steps provided do not resolve your issue, your product may need service. Follow the link below for more information on how to service your product. Depending on your product and region, you will be provided a contact number or the ability to setup service online.
Click here to start service
Click here to start service