Sound troubleshooting

Check to see if the problem occurs with external sources only. Try playing an FM radio station. If the problem occurs with the radio, see below for No audio from internal source
If it's a problem with a connected source, check to see that the correct source is selected. The wrong source may be selected. For example, an external device may be connected to input 1, but a source other than input 1 may be selected
Be sure nothing is connected to the headphone jack. The speakers are automatically muted when headphones (or any cable with an 1/8-inch stereo plug) are connected to the system
Verify that the connected source is powered on
Reseat the connected audio cable at both ends. Ensure that the audio cable (optical, analog, and/or HDMI®) is fully connected at the source and at the back of the control console

Verify that the Acoustimass® module LED is on. The Acoustimass module LED will illuminate when properly connected to an active media center. If the LED is not illuminated, verify the Acoustimass module is connected to a working outlet
Be sure the audio input cable is connected properly. The audio input cable that connects between the media center and Acoustimass module may have come loose or may be connected incorrectly
Check the condition of the audio input cable. Make sure there is nothing broken inside either end of the mini-din connection. Check for any kinks or cuts. If the cable is broken or damaged in any way, replace the cable
Be sure nothing is connected to the headphone jack. The speakers are automatically muted when headphones (or any cable with an 1/8-inch stereo plug) are connected to the system
Perform a product reset. Turn the system off, unplug from power for 60 seconds, reseat the audio input cable at both ends, reconnect power and try the system again

Still need help? One of our Bose technical support specialists can assist you with your issue. To reach us, click on the “Contact us” tab above.

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