10.2.3. Connecting using the HDMI port (ARC)
It is possible to connect an external audio device using an ARC (Audio Return Channel) connection. This allows
the external audio device to be controlled via the touchscreen. To connect an audio device via ARC, insert one
end of an HDMI cable into the touchscreen’s HDMI port with ARC support (3) and the other end in the external
audio device’s HDMI port.
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