Unplug the TV, A/V receiver and STB power cords from the AC power outlet.Unplug any HDMI cables that are connected to the A/V receiver.Power off the TV, the A/V receiver and the set-top box (STB) if using one in your set-up. Manuals are posted on your model support page. IMPORTANT: If model-specific information is needed to complete any of these steps, refer to the instructions supplied with the product. There are a couple of items you may want to try to see if they will restore the sound: Since the DVI jack on the TV is not HDMI, authentication cannot occur and may cause the A/V receiver to not produce any audio. HDMI communicates with all of the HDMI-connected devices and requires authentication (a.k.a. This issue can occur with an Audio/Video (A/V) receiver that has HDMI® Active Intelligence.
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