After all the led displays have been installed, we will have a training arrangement. Here we will mention some daily precautions for the use and maintenance of led displays, such as switching on and off led displays and precautions after minor glitches: 

1. Switch sequence: when opening the screen: turn on the machine first, and then turn on the screen. 

When closing the screen: close the screen first, and then turn off the computer. 

If the computer screen is not turned off first, it will cause highlights on the screen body and burn the lamp tube, resulting in serious consequences.). 

2. When switching the led display screen, the interval time should be more than 5 minutes. 

3. Only after the computer enters the engineering control software can the screen be turned on. 

4. Avoid opening the screen in the all-white screen state, because the impulse current of the system is the largest at this time. 

5. Avoid opening the screen in the out-of-control state, because the impulse current of the system is the largest at this time. 

A computer does not enter programs such as control software. 

Computer B is not powered on. 

C control part of the power supply is not turned on. 

6. When the ambient temperature is too high or the heat dissipation condition is not good, you should be careful not to open the screen for a long time. 

When there is a very bright line in part of the 7.led display screen, you should pay attention to closing the screen in time, and it is not appropriate to open the screen for a long time in this state. 

8. The power switch of the display screen is often tripped, so the screen body should be checked or the power switch should be replaced in time. 

9. Check the firmness of the connecting place regularly. 

If there is any loosening, pay attention to timely adjustment, re-reinforcement or renewal of the suspension. 

10. According to the environment of the display screen and the control part, insect bites should be avoided and rodenticide should be placed if necessary.