How do we judge the LED display black screen, and how to deal with it?
Let us read as following:
1. Please ensure that all hardware including the control system is properly powered on.
Note: +5V, do not connect the wrong, wrong.
2. Check and double confirm whether the serial port wire used to connect the controller is loose or falling off.
LED display manufacturers suggest: if the black in the loading process, it is likely to be caused by this reason, that is, during the communication process due to loose communication wire interruption, so the screen black.Don't assume that if the display doesn't move, the wire won't come loose. Check it out. It's important for you to solve the problem quickly.
3, check and confirm the connection LED display screen and the HUB distribution board connected with the master business card printing is closely connected, whether the plug is reversed.
4. Please check and confirm whether the 50-core wiring between the connection control card and the HUB distribution board is loose or inserted reversely.
5. If your LED display interface definition does not match the provided HUB board, there will be black screen. Please re-check whether your jumper wire is loose, broken or short.If you think you have matched the ABCD and other signals one by one, check again that the OE signal is connected correctly.
Tips: LED display manufacturers strongly recommend the use of HUB distribution board matching the interface definition of the display screen