Why does the LCD screen go black when it flashes?

The display will turn black when it flashes, which is caused by the leakage fault of the filter capacitor of the low-voltage rectified output of the power board inside the display. When the monitor is powered on, the filter capacitor of the low-voltage output part only fails due to leakage, but it is not completely dead. After a while, the output power supply is normal, so the screen lights up, and then the display goes out immediately because of the lack of power supply. ?

A monitor is also commonly called a monitor. A monitor is an I/O device belonging to a computer, that is, an input/output device. It is a display tool, which displays some electronic files on the screen through a specific transmission device and then reflects them to human eyes. Can be divided into CRT, LCD and other types.

If it is a newly installed computer, the host runs normally when it is turned on for the first time, but there is no signal on the black screen of the monitor. First, you need to check whether the power supply of the monitor is connected and whether the monitor is turned on. You can look at the power indicator of the monitor.

If the memory card is inserted incorrectly, loose or there is too much dust on the gold finger, there may be a situation where the display screen is black and there is no signal, but the computer has been running. The solution is to turn off the computer and cut off the power supply, then take out the memory stick, then clean up the golden finger and reinstall the memory. You can also try installing it in another slot and then opening it again.