Connect one end of audio cable and video cable (red and white) and video cable (yellow) to the ports of "right channel", "left channel" and "video" (red, white and yellow) on the set-top box respectively, plug the other end into the audio and video input port of the TV box in the same way, and then connect the LCD from the VGA of the TV box output port.
Attachment: TV box
The TV box with VGA interface is directly connected to the display through the D-Sub interface, and the external TV box is not easily interfered by the electromagnetic interference inside the computer, so the signal is better. In addition, the operation of TV box is no different from that of TV, and the user's operation is simple and convenient.