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Hello Buyer, Thank you for considering Sony products! We appreciate your question and are here to assist you. The Sony XR-65X90L TV has an optical audio output, which carries audio only—not power or control signals—so the TV can’t turn a soundbar on via the optical jack. This TV does include HDMI eARC, which supports full audio and power control through HDMI-CEC (Bravia Sync). Using eARC is the best way to have the soundbar turn on/off automatically and control volume with the TV remote. Just make sure HDMI-CEC is enabled on both devices. For more details about this feature, you can visit Sony's support page: https://www.sony.com/electronics/support/articles/00161073 Best regards, -Fred
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