Samsung Q900R series - Audio Input and Output Connections; Connecting with an HDMI (ARC) Cable; Connecting with a Digital Audio (Optical) Cable; Connecting through a Wireless Network

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Audio Input and Output Connections
Make the correct audio connections between your TV and your external devices.
" For more information about how to select external speakers, refer to "Selecting speakers".
Connecting with an HDMI (ARC) cable
HDMI IN
(ARC)
Connecting with a digital audio (optical) cable
DIGITAL
AUDIO OUT
(OPTICAL)
Connecting through a wireless network
You can connect the TV to a Samsung audio device that supports the Wi-Fi function through your wireless network.
The two devices must be connected to the same network. For more information about how to connect and use a
Samsung audio device that supports the Wi-Fi function, refer to its user manual.