What are the solutions to the 3 common problems of LCD digital advertising display screens?

What are the solutions to the 3 common problems of LCD Digital Advertising Display Screens?

First, after the LCD Advertising Screen has been used for a period of time or when the LCD Digital Advertising Screen is just turned on, it will automatically turn off. In order to identify whether the menu setting of the LCD digital advertising screen is in the state of shutting down on time; if the machine is short-circuited, the main board can be replaced; if the high-pressure rod does not work normally, replace the high-pressure rod.

Second, the LCD digital advertising screen does not respond after plugging in the power supply during use. First check whether the power supply is powered on, which is a common problem in actual use. Try removing the back cover and check for loose or loose wires. Test method: Take the multimeter as an example to see if the indicator light is normal. If it is normal, turn on the power supply to rule out the problem of power failure. Then, check whether the decoder board, digital advertising screen driver board, high voltage rod, speaker and LCD screen are powered on in order to see if there is any problem with the accessories.

Three, when the LCD digital advertising screen starts, there is no sound and the screen does not display. This could be due to a blinking light on the front panel. If there is no sound, open the back cover of the LCD advertising player, use a multimeter to check whether the drive board is powered on, and then check whether the speaker cable is connected normally. If the horn is noisy, it means that the drive board of the advertising machine is damaged and can be replaced. If there is no display on the screen, you can check whether the signal connection between the monitor and the computer is firm, and carefully check whether there is a problem with the interface of the signal line. The plug should be replaced in time if it is damaged, such as bent or broken.

The above are the three common problems of LCD digital advertising screen.