Wall-mounted online advertising machine is a device that can be seen in many places today. It is mainly used to publish advertisements, and the main purpose of advertisements is to promote, let more people recognize some of the company's products, and improve the company's products. Because of its popularity, his existence is still very meaningful, but there will be some different situations during the operation of this advertising machine. The following is an analysis of these situations.
The common situation in the wall-mounted network advertising machine is no power (black screen), this situation may be a bad built-in power supply or a bad internal drive board of the machine; it is recommended to check whether the power output is normal, if the power supply has no output, it can be confirmed that the power supply is bad, If it is normal, it is possible that the driver board is defective. In addition, there is the Huaping screen. When there is a certain area on the LCD screen that has not been displayed or displayed abnormally, it is called Huaping. At this time, we should pay attention to check whether the signal transmission line inserted on the LCD screen is loose, etc., resulting in poor contact, such as If this happens, plug and fix the signal cable tightly, and check if the problem is solved; otherwise, the LCD screen may be defective. There is also a dark screen (no display on the screen, splash screen), when the LCD screen is always on a black screen, dark screen, splash screen, etc. when an advertisement is played, it is called a dark screen. At this time, it is necessary to check whether the power output is normal. If the power output voltage is unstable (the voltage value does not reach 1112V), it can be confirmed that the power supply is not good. If the power output is normal, the driver board and inverter need to be replaced one by one until the fault is eliminated. . No signal is also a very common situation. When the power is turned on, the words such as no signal appear on the screen, which is called no signal. , Check whether the internal video cable and the 5V power cable input to the decoder board are loose. If there is no such phenomenon, you need to replace the decoder board or driver board. After replacement, check whether the fault disappears.
Regarding the analysis of some common faults of the wall-mounted network advertising machine, in fact, the development speed of this advertising machine is really fast, and it has indeed been recognized by everyone, so I suggest that you still need to deal with the above. content to understand.
