LED display troubleshooting method

　　Step 1: Check whether the Settings section of the graphics card is set. The required Settings are in the electronic file on the CD. Please refer to the

　　Step 2: Check the basic connections of the system, such as whether the DVI cable and network cable socket are correct, the connection between the main control card and the PCI socket of the computer, and the serial cable connection. The connection mode has legend, please read carefully

　　Step 3: Check whether the computer and LED power system meet the use requirements. When the LED screen power supply is low, when close to white (high power consumption), the picture will flash. Prepare suitable power supply according to the power demand of the box

　　Step 4: Check whether the green of the sending card blinks regularly. Go to Step 6. If it does not blink, restart it. Before entering the system, check whether the green is blinking regularly. If blinking, go to Step 2. Check whether the DVI cable is properly connected. If the fault persists, one of the sending card, graphics card, and DVI line is faulty. Replace them and repeat Step 3

　　Step 5: Set or reinstall the device according to the software description until the sender card blinks. Otherwise, repeat Step 3

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