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What caused the black screen /blurred screen/ bright lines ?   

时间:2018-08-01 阅读:1590

1. Please check all the hardwares including controlling systems get power correctly;(Do not be confused with the +5V and GND.)

2. Please check and ensure that the serial port line for controllers is stable, without dropping or starting;
    If it's black during the loading, that may result by the dropping or starting of the communicating line. And please do not think that the screen did not move, so the line is still stable. 

3. Please check and ensure the 50 pin cable which connected the controller and HUB board, does not loosen or anti-plug;

4. Please check your display module port is matched with the offered HUB.if not,the black screen  will be display.

5. The stoppage of switch on/off controller power will bring on these problems;

6. Weak power will also lead these problems;5V power take much more display modules, load too much, resulting in the  low  voltage and then caused the screen problems. 
    Also bringing the unstable work of controller, showed " please   add programs".   Sometimes the insufficient power of HUB board  caused these problem.

7. Please check the programs you edit is not empty.if empty then black screen showed.

8. If the scanning configuration is not correct, the LED screen will be blurred.

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