1. Connect the wired white signal line to the RF input port on the back of the set-top box.
2. Connect the AV signal line between the set-top box and the TV, that is, the red, white and yellow lotus heads. There will be this interface behind the TV. Some TVs have multiple sets of AV interfaces behind them. If AV 1 is connected, you need to switch to AV 1 with the TV remote control after turning on the TV. So is AV2.
3. Insert the distributed smart card into the set-top box, and pay attention to the insertion direction and positive and negative directions.