The LED Display industry will soon reshuffle. If it is improperly operated or technically inadequate, the problems faced can be imagined. The “black screen” fault of the LED screen is particularly important in daily life. How do we judge the black screen of the LED screen, and how to deal with it? Let me explain to you how to deal with the “black screen” of the LED Display screen.
1. How to Deal with Black Screen of LED Display
(1). Please make sure that all hardware including the control system has been powered on correctly. Note: +5V, do not connect reversely or wrongly.
(2). Check and confirm whether the serial port cable used to connect to the controller is loose or falling off. The LED display manufacturer recommends: If it turns black during the loading process, it is probably caused by this reason, that is, the screen is black because the communication line is interrupted due to the loosening of the communication line during the communication process. Do not think that the line cannot be loose if the display body does not move. Please check it by hand. This is very important for you to solve the problem quickly.
(3). Check and confirm whether the HUB distribution board connected to the LED display screen and the main control card is tightly connected and whether it is inserted backwards.
(4). Please check and confirm whether the 50-core cable between the 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, a black screen will appear. Please recheck whether your jumper is loose, disconnected or short-circuited. If you think that the ABCD and other signals have been one-to-one correspondence, please check whether the OE signal is connected correctly. Reminder: LED display manufacturers strongly recommend to use the HUB distribution board that matches the display interface definition.
If you have mastered the above points, you will be able to deal with the “fault” of the LED Display screen black screen usually encountered. Today, I will share the above experience with you, hoping to help you solve the problem.
