in the process of using the led display screen, sometimes encounter the situation that the led display screen can not load the image. many customers are at a loss when they encounter this problem. they don’t know what to do. next, we will talk about how to check the problem that the led display screen can not load the image.
1. check whether the jumper cap of the led display screen is loose or falling off; if the jumper cap is not loose, make sure that the direction of the jumper cap is correct.
2. check and confirm that the serial line used by the led display to connect the controller is a straight line, not a cross line.
3. check and confirm that the serial connection of the display screen is intact and there is no loosening or falling off at both ends.
4. contrast the control software of led display screen with the control card selected by oneself to select the correct product model, the correct transmission mode, the correct serial number and the correct baud rate. correctly set the address bit and baud rate on the hardware of the control system according to the dial switch diagram provided in the software.
5. ensure that the hardware of the led display control system is properly powered on.
6. if the load still fails after the above checks and corrections, please use the multimeter to measure whether the serial port of the connected computer or control system hardware has been damaged to confirm whether it should be returned to the computer manufacturer or the control system hardware should be returned to the relevant led display manufacturer for testing.