LED display power can not be displayed properly
In the process of using the control system, the occasional LED display will encounter a black screen phenomenon. The same phenomenon may be caused by a variety of different reasons, even the process of blacking the screen will be due to different operations or because of different environments vary. For example, it may be a power of the moment is black, it may be black during the loading process, it may be black after the completion of the transmission and so on.
If the display interface definition does not match the provided HUB board, a black screen will appear. Please check if there is a loose, open or short circuit in your jumper. If you have the ABCD and other signals one by one correspondence, please check the OE signal is connected correctly.
Check and confirm that the serial cable used to connect the controller is loose or off. (If the black during the loading process, it is likely that because of this cause, that is, during the communication process due to loose communication line and interrupted, so the screen black. Do not think that the display body is not moving, the line can not be loose, please It is important to check the problem quickly.
Make sure that all hardware, including the control system, is fully powered up. (+ 5V, do not reverse, then wrong)
LED display power can not be normal display of the phenomenon may be caused by a variety of different reasons, encountered this phenomenon Please note that the following aspects can be used to determine the "failure":
