IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.
The sound from devices connected through the DIGITAL AUDIO OUT (OPTICAL) and HDMI® (ARC) port of the TV can't be muted using the MUTE button on the TV remote control. This is a TV specification and part of the normal operation. Lower the volume or mute the sound from the connected device.