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Source changes unexpectedly
If the audio you are listening to from your system changes to the audio from a different device connected to your system on its own (e.g. changing from TV sound to an AUX device), try the following:
In the menu of the connected device, try disabling HDMI-CEC.
CEC (Consumer Electronics Control) allows devices to send control information (e.g. power, input switching, remote control, etc.) back and forth over HDMI. CEC implementation and capabilities can vary among different brands, which can cause various control issues. Try disabling CEC in the menu of the connected device, then try again. Depending on the brand, CEC may be labelled differently in the device menu. For more info, see Names used by different brands for CEC.
Reset your product.
Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more info, see Resetting your product.
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