Solution:
With the following:
1.HDMI interfaces are input interfaces, and support output devices such as computers, game consoles, DVDs, set-top boxes, high-definition players (Xiaomi boxes) through HDMI cables;
2.USB interface, this interface is mainly used to connect external storage devices, such as U disks(pen drives), hard disks, to achieve the powerful local playback function of the TV host, and also supports wired mouse, keyboard and other devices for input;
3.Ethernet port, used to connect directly to the network cable to access the Internet (the front end has a router for dialing);
4.AV (audio and video input): It mainly implements two functions: a) Connect the output device such as set-top box and DVD through AV cable, let the TV display the image of the device and let the host output sound..
5.S / PDIF out: realize digital audio output, connect to peripherals to output sound, such as amplifier or speaker.
6.TV RF: When connected with closed circuit TV and DTMB digital signal, it is connected through coaxial cable. It can be used with antenna isolator or antenna isolator conversion head;
7.DC power interface: use Xiaomi TV host power adapter to connect to this interface for power supply.