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(1)DVI/HDMI cable and other connectors are not allowed to be plugged or unplugged live on the sending card or processor；

(2)No live maintenance during module maintenance；

(3)The screen body or module is prohibited from splashing water, cleaning dust shall not be used with a rag, with water objects, hard objects to clean up, can be used anti-static soft brush cleaning；

(4)When the screen body works, the luminous surface of the display screen can not be hit by hard objects；

(5)Open and close order: open screen: first open the computer → then open the display screen; Screen off: first turn off the screen→  then turn off the computer；

(6)The software should be operated by designated personnel, and it should be backed up and stored；

(7)When the ambient temperature is too high or the heat dissipation conditions are not good, we should pay attention not to open the screen for a long time;The screen shall be installed in the temperature range of -15℃ ~ 45℃. When the temperature is beyond the range, a temperature control device shall be installed.Installation of LED display is strictly prohibited near any source of heat.(the ambient temperature is too high or the heat dissipation condition is not easy to lead to the LED display life is reduced) when the installation of indoor LED display, the environmental relative humidity should be in the range of 20%-80%, when the indoor environmental humidity is less than 20%, it is easy to generate static electricity;When the humidity of indoor environment is higher than 80%, it is easy to cause the lamp to be damp.Place the modules in a dry place before assembly. Ensure that the modules are stored in an environment with temperature not higher than 35℃ and humidity not higher than 65%。