Using the learning function of the set-top box remote controller, the main functions of the TV remote controller can be converted to the set-top box remote controller, so that a remote controller can command the TV and the set-top box at the same time. Let's show you the specific operation method: First, we find the TV button area on the remote control of the set-top box, which mainly includes the study setting key, the power control key, the TV /AV conversion key, the channel+-key, the volume+-key and two custom keys. Next, let's see how to operate it: first, confirm whether the remote control button of the original TV is normal, then press and hold the remote control button of the set-top box for 3 seconds and then release it, and the red light will stay for 10 seconds. Press the red power button of the learning remote control, and the red light will flash. Then, the original TV remote control is facing both ends of the machine, with a distance of 3CM. Press the "power" button of the TV remote controller for 3 seconds, and the red light will light up for 3 times, and the learning is successful. Then, repeat learning TV/AV conversion key, volume increase or decrease key and channel increase or decrease key. The set-top box remote controller may encounter the following common problems in the learning process: 1. If the operation is unsuccessful, please repeat the operation several times, or reinstall and re-operate the battery of the set-top box learning remote control. 2. It is normal that the learning remote control of the set-top box is not compatible with earlier TV remote controls or individual models. Please use the original TV remote control with the set-top box remote control. (that is, you must use the TV remote controller when you remotely control the TV, and you must use the set-top box remote controller when you remotely control the set-top box) 3. The TV/AV conversion key of some TV remote controllers has different names, mainly including video, signal source or input identification symbol.