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 (5) and the other end
in the external audio device’s HDMI port.
10.2.4.Connecting using the HDMI port (CEC)
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