1. If the high-definition set-top box is connected to the TV with a high-definition multimedia interface cable, you should select the corresponding high-definition multimedia interface ("HDMI 1" or "HDMI 2");
2. If the standard definition set-top box is connected to the TV through the audio cable and video cable, switch the signal source of the smart TV to the corresponding "video 1" or "video 2".
Extended data
Application of Smart TV Wireless Network
Smart TV supports WIFI wireless network, with wireless WIFI and 100M wired LAN port. WiFi has both external and built-in functions. Such access speed of online network video, website browsing, online query, etc. It will be improved, adding wonderful experience for your daily office, social entertainment and information search. Moreover, with the support of the browser kernel, it is the first to achieve compatibility with the new HTML5 network standard.
Selection and development of TV signal source
1. Source coding and decoding related standards: There have been three international standards for digital image coding, namely H.26 1, JPMG and MPEG.
2. China Working Group on Digital Audio and Video Coding and Decoding Standards has formulated AVS standards for digital TV and high-definition laser disc players. It is said that the standard has independent intellectual property rights and is fully compatible with the MPEG-2 standard and the basic layer of the MPEG-4 AVC/ H.26 international standard. It is said that its compression level is 2-3 times that of MPEG-2 standard. Compared with MPEG-4 AVC, the simpler design of AVS reduces the complexity of chip implementation.
References:
Baidu Encyclopedia: Application of Smart TV Wireless Network, China Encyclopedia Network: Selection and Development of TV Film Sources.