1. Check if the jumper cap is loose or has fallen off. If the jumper cap is not loose, ensure that the jumper cap is oriented correctly.
2. Check and confirm that the serial cable used to connect the mobile LED display to the controller is a straight-through cable, not a crossover cable.
3. Check and confirm that the serial cable connecting the mobile LED display is intact and that both ends are not loose or detached.
4. Refer to the mobile LED display control software and your selected control card to select the correct product model, correct transmission method, correct serial port number, and correct serial transmission rate. Correctly set the address bits and serial transmission rate on the control system hardware according to the DIP switch diagram provided in the software.
5. Ensure that the control system hardware is powered on correctly.
6. If the mobile LED display still fails to load after the above checks and corrections, use a multimeter to check if the serial port of the connected computer or control system hardware is damaged. This will help determine if the computer should be returned to the manufacturer or the control system hardware should be sent for testing.
In summary, these are the solutions for abnormal loading of mobile LED displays. However, the reasons for abnormal loading of mobile splicing LED displays are very complex. They may be due to factors of the product itself or improper operation during use. Therefore, we need to consider various factors comprehensively in order to find a good solution.