2. Turn on the power of the set-top box. Is there any information about the startup prompt on the TV screen? If not, please check whether the AV cable of the set-top box is connected correctly and whether the AV/TV setting of the TV is correct. If the startup prompt appears, please wait for about 20 seconds. Is there any message with no signal displayed on the screen? If not, press the menu key of the remote control to enter the system setting item, then the program search item, and finally the manual search item. At this time, information such as signal strength will be displayed on the TV screen. If the information such as signal strength is 0, there is something wrong with the cable at home. If there is information such as signal strength, return to the previous interface and automatically search for channels.

China Telecom provides the best network communication services, such as exchanging old friends for new ones, cashing in the network age, free broadband experience of 100 Mbps, ultra-clear TV iTV and 5 17 telecom activities, which can be inquired directly through the telecom business hall or the entity business hall.