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How to Clear Trouble for LED Display?

2018-09-14 www.myddisplay.com

In the process of using full color LED display devices, it is inevitable that sometimes problems will occur. Today, we will introduce how to distinguish and judge the fault diagnosis method of full color LED display.


curved full color led display


Step 1: Checking if the graphics card settings section is set. If necessary, the setting method in the CD electronic file, please refer to it.


Step 2: Checking the basic connection of the system, such as DVI line, whether the network cable socket is correct, the connection between the main control card and the computer PCI plug, the serial cable connection, etc. The connection method has a legend, please refer to the reference carefully.


Step 3: Checking if the computer and LED power system meet the usage requirements. When the power of the LED screen is insufficient, when the display is close to white (more power consumption), the screen will flicker, and the appropriate power supply is prepared according to the power requirements of the cabinet.


Step 4: Checking if the green light of the sending card flashes regularly, flashing to step 6. If it is not flashing, restart it. Check if the green light flashes regularly before entering win98/2k/XP,if blinking to the second step,please check if the DVI cable connection is connected. If the problem is not solved, may one of the sending card, the graphics card and the DV cable I is faulty, please repeat step 3 after replacing one by one.


Step 5: Please follow the software instructions to set or re-install and then set, until the green light of the sending card flashes, otherwise repeat step 3.


Step 6: Check if the green light (data light) of the receiving card flashes synchronously with the green light of the sending card. If it flashes to step 8, check if the red light (power) is on. If the light turns on the seventh step, if it does not light up, then check whether the yellow light (power supply protection) is bright, if it is not lit, check if the power supply is reversed or the power supply has no output. If it is bright, check if the power supply voltage is 5V. If the power is turned off, remove the adapter card and cable and try again. If the problem is not solved, the receiving card is faulty, replacing the receiving card, repeat step 6.


Step 7: Check if the network cable is connected well or too long (must use the standard Super Category 5 network cable, the longest distance of the network cable without repeater is 100 meters), check whether the network cable is made according to the standard (please refer to system installation and setup) If the problem is not resolved, the receiving card is faulty, replace the receiving card, and repeat step 6.


Step 8: Check if the large LED screen  power light is on. If it is not light, go to step 7 and check if the adapter card interface definition line matches the unit board. Note: After most LED screens are connected, there may can not display or the screen is blurred in a certain box. Because the RJ45 interface of the network cable is not securely connected, or the receiving card power is not connected, the signal is not transmitted, so please re-plug the network cable (or exchange), or plug in the receiving card power (pay attention to the direction) can solve the problem.


After reading the above introduction, Do you gain more experiences in how to diagnose and deal with the failure of LED electronic display?


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