Problem 1: There is an area of the large LED screen with an abnormal display of the lamp surface, for example, all messy patterns are flashing.
Solution: Generally it is the problem of the receiving card. Check which receiving card controls the abnormal area. Replace the receiving card to solve the existing problem.

Problem 2: The LED display shows a row of abnormalities, with a flash of variegated color.
Solution: Starting from the abnormal position, check whether the flat cable of the module is loose and whether the flat cable interface is damaged. If there is any problem, replace the flat cable or the faulty module.

Problem 3: There are sporadic lights in the display that are not bright or the colors displayed on the whole screen are different, also called black spots, bad lights, and dead lights.
Solution: The modules with black spots, broken lights, and dead lights can be replaced.

Question 4: The LED display trips as soon as it is powered on, and the same is true for repeated operations.
Solution: Check whether there is a short circuit in the power line, check whether the positive and negative power cord connectors are touching, and check the power switch connector and whether any metal objects fall inside the screen.

Question 5:A certain area of the LED display appears a flashing square, motley color, several lights side by side display abnormal.
Solution: This is a problem with the module, just replace the module in the abnormal display area of the block.

Problem 6: A large area of the LED display is not displayed, and it is all black.
Solution: First consider the power transmission problem, and check from the problem area to see if the power switch is damaged and there is no electricity; secondly, check whether the flat cable is loose and the signal has not been transmitted; finally, check whether the receiving card is damaged.

Problem 7: When the LED display screen is playing videos or pictures, the display area of the computer software is normal, but the screen sometimes freezes or blacks out.
Solution: Generally, there is a problem with the quality of the network cable, and the loss of video data transmission will cause the black screen to freeze. You need to replace the better quality network cable.

Problem 8: Need to synchronize the full-screen display of the computer desktop with the LED display.
Solution: To achieve this function, you need to be equipped with an LED video processor. After the video processor is equipped, it can be adjusted on the video processor to synchronize the image area to be displayed on the large LED screen.

Problem 9: The display of the software window of the LED display screen is normal, but the picture on the screen is disordered, staggered, or divided into multiple windows to display the same picture separately.
Solution: It is a software setting problem. Enter the software setting and reset the correct setting to solve the problem.

Problem 10: The computer network cable is well connected to the network cable of the LED display, but the software says “No display system found”, even though the LED display can play pictures and videos normally, the data sent by the software settings all fail, such as Failed to send brightness data.
Solution: Generally, there is a problem with the sending card, and the problem can be solved by replacing the sending card.

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