LCD splicing wall, large screen, shocking and clear picture, make our life more and more exciting. At the same time, due to its colorful picture performance, it is widely used in security monitoring, entertainment and other industries. However, if the LCD splicing screen appears black and flickering, it will seriously affect the display effect of the LCD splicing screen.
LCD splicing screen
The reasons for the black screen are basically: the power supply, the adapter, the board card, and the result of a broken Z is that the screen is broken.
First check the power supply: there is no response when pressing the buttons on the panel, and the indicator light does not light up. First, measure the voltage with a multimeter. If there is no voltage or the voltage becomes very low, one possibility is that there is a problem with the input stage of the power supply circuit, that is, there is a local problem with the point source. This kind of problem is very common, usually caused by burning insurance or voltage regulator chip. Some machines have built-in switching power supplies, so when we stop playing the LCD splicing screen, we must ensure that the voltage is stable! Another situation is that the program is washed away, which may cause it to fail to start. This is like our computer can't start, sometimes it's because of the software, we need to buy the software.
LCD splicing screen
The screen flicker of LCD splicing screen generally includes: damaged power adapter, unstable power plug, unstable voltage, unstable VGA line interface, or damaged line. The solution is: reconnect the VGA cable, carefully refer to the product wiring instructions, connect carefully according to the above instructions, and plug the interface tightly to avoid short-circuit or poor contact. Use a multimeter to check the internal connection lines of the LCD panel, find out the poor contact or short circuit, and replace the high-quality circuit connection line. Use a multimeter to check if the power supply of the LCD mosaic screen is grounded. The screen flicker may be caused by this reason. If there is a problem, ground the power supply.
