Composite (A/V) Connection - Samsung un78hu9000 E-Manual

Composite (A/V) Connection

Refer to the diagram and connect the AV cable to the One Connect's AV input connectors and the
device's AV output connectors.
If you are using the One Connect's AV1 input connectors, connect the device's audio output to the TV
using a Y connector.
If you are using the One Connect's AV2 input connectors, use the included AV connection adapter to
connect the device's audio and video output to the TV.
SOURCE
Once the connection has been made, press the button to select the connected external
device.