LED display device in the use of the process, it is inevitable that sometimes there will be problems. Today, we will introduce how to distinguish and judge the fault diagnosis method of LED display screen. 

Step 1: check whether the graphics card settings are set up, according to the need to set the method in the cd-rom electronic files, please check. 

Step 2: check the basic system connections, such as DVI line, network cable jack is correct, the main control card and the computer PCI card connection, serial port connection, etc. , please refer carefully to

 step 3: check the computer and LED power supply system to meet the use of demand. When the LED screen power supply is insufficient, when the display is close to white (power consumption) will cause flicker screen, according to the box power supply needs to formulate a suitable power supply.

Step 4: check whether the green light of the sending card blinks regularly, blinking turnstep 6, if not blinking, restart, before entering Win98/2k/XP, check whether the green light blinks regularly, such as blinking turn the second operation, please check the DVI line connection is good, if the problem is not solved for the sending card, video card and DV line I one of the three fault, please replace the third step after repeating.