Simply put, it is best to solve this problem by the elimination method. You can find out the faulty equipment by replacing the original items with confirmed wires and display equipment in turn. This process is simple and easy, and there is nothing to say. However, it is important to point out here that HDMI is not an interface that supports hot plug. During the hot plug process, an arc will be generated, and the current intensity of the arc will be very high, which will burn the HDMI interface, and what's more, it will damage the digital circuit at the front end of the HDMI interface. Therefore, many people will damage the HDMI interface of input devices or output devices because of hot plug when using HDMI devices.

pulse usually refers to a short-term fluctuating electric shock (voltage or current) that is often used in electronic technology, and its main characteristics are waveform, amplitude, width and repetition frequency. The program of pulse shaping can produce different pulse shapes, and the optimal pulse shape is different according to different applications.