When using LED electronic display, it often fails to load. From the following aspects to analyze the reasons why the lower display can not load.
1. Check whether the jumper cap is loose or falling off; if the jumper cap is not loose, please make sure the jumper cap is in the correct direction.
2. Check and confirm that the serial cable used to connect to the controller is a straight-through cable, not a crossover cable.
3. Check and confirm that the serial cable is intact and that there is no looseness or shedding at both ends.
4. Compare the LED display control software and the control card you choose to choose the correct product model, correct transmission method, correct serial port number, correct serial transmission rate and set it correctly according to the DIP switch diagram provided in the software Control the address bits and serial transmission rate on the system hardware.
5. Make sure that the control system hardware is properly powered on.
6. If after the above checks and corrections it still fails to load, please use a multimeter to measure whether the serial port of the connected computer or control system hardware is damaged. In order to confirm whether it should be returned to the computer manufacturer or the control system hardware is returned to the test.
In short, the reason why the LED display is not loaded normally may be a problem of the product itself, or it may be caused by your improper operation during use. It is easy to find the source of the problem as long as you think carefully or ask the manufacturer.
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