1, the sudden increase in the supply voltage. Let supply voltage causes a sudden increase on the lot, such as power quality problems, or other reasons the user can make improper use of power supply voltage is suddenly increased.

2, a component or printed circuit lines or other wires shorted LED display power supply pathway formed by a partial short circuit, the voltage is increased to make this place.

3, an LED display because of their quality and thus cause damage to a short circuit, the voltage drop on its original passed on to other LED display.

4, the temperature is too high cabinets, deterioration of the characteristics of the LED display.

5, when the assembly did not do the work of anti-static, so that the internal LED display has been static electricity damage. Although the applied voltage and current values ​​are normal, the LED display is vulnerable to damage. Screen work.