For IPTV Customers:
Please check the following:
Press the Mute button to ensure it is not enabled.
Raise the volume
*important* ensure volume on set top box is at maximum before checking on tv or surround sound audio. Press STB button then volume which will display a blue volume icon on screen.
Check the audio connections.
Check the TV speakers or sound system connections and settings.
Try resetting the receiver by disconnecting the AC power supply (at the wall) for 30 seconds, then plugging it back in. The receiver will initiate a full reset.
Note: If you are using a stereo or surround-sound system, this should also be turned on and the volume and connections checked
This may also be caused by a special feature on stereo TVs and VCRs known as Secondary Audio Programming (SAP), Multichannel Television Sound (MTS), or AUD, and will need to be corrected through the TV or VCR as it is not a function of the receiver. A function button or setting can be found on the remote control or through your on-screen menu.
Refer to your TV or VCR manual for more information, should the proposed action above not work.
If this does not help, please contact us for further troubleshooting.