First, the LED display part of the screen body is not normal, such as black screen, Huaping.
Solution: 1, the output of a problem: First, the output interface to detect whether the output signal line IC is connected or short circuit. Second, the output clock latch signal is detected normal. Finally, it is detected whether the cascade output data port between the last driver IC and the data port of the output interface is connected or short-circuited.
2, check the screen display abnormal power is working properly;
3, check the signal transmission line is faulty;
4, check the screen single module whether there is a problem. The company is located in:
Second, the display Huaping can not be displayed.
Solution: Check the electronic screen power supply is normal, there is 220V strong input.
Third, the display shows abnormal and Huaping.
Solution:
1, LED control card parameter settings are correct, there is no signal transmission to the electronic display LED control card;
2, the communication line is normal communication, check whether the LED control card signal input;
3, LED control card 5V power supply is normal;