Can the spare parts of LED display screens in different periods be used universally?

The LED display is composed of several different components. Many users will provide various components when purchasing and installing the LED display, such as LED modules, dedicated power supplies, control cards, fans, cables, etc., in case the LED When the display screen fails, it is a question for many users whether the accessories of the same specification can be used universally. Whether the LED display components can be used universally, our answer is uncertain. First of all, it is certain that the power supply can be used universally, but the power supply has different powers. The power of the power supply is basically sufficient power. Due to the cost of the monochrome LED display, most manufacturers use insufficient power. When replacing it, it is necessary to use professional tools to detect or ask the LED display manufacturer who provided the equipment for consultation. . Let's talk about the LED module, an important part of LED display products. More than 60% of the cost of an LED display is composed of LED modules. It mainly plays the role of display, and the probability of failure is also the largest. LED display If any part of the screen is not working properly, it will directly lead to abnormal display of the LED module. For example, if the power supply is not supplied, the LED module will not light up or flicker irregularly. The signal disorder of the control card will also cause the LED module to flicker irregularly. , including the aging of the data line or poor contact will also cause the LED module to display abnormally, and the LED module itself will also be damaged due to long-term work or high temperature or freezing. When there is a problem with the LED display, the first thing to judge is which factor The reason is to find the root cause to prescribe the right medicine. First, check whether the power supply is normal. The input voltage of the LED module is DC 5V. If the voltage is normal, the next step is to check whether the signal output of the control card is normal. The conventional method is to use a long cable to jump Cable test, if another cable LED display shows normally, it proves that the data cable is a problem and can be replaced directly. During the test, you can use the port with normal display to test the faulty LED module. If it still does not If it is normal, then it can be determined that it is the cause of the LED module itself.

When replacing the LED module, it is not allowed to replace it with a module of a different batch, because the current, voltage, circuit board and component brand of the LED module in different periods are different, and the color difference is obvious, or the display is completely abnormal. , so spare LED modules of the same batch are required for repair. Finally, let’s talk about the control part of the LED display that is equivalent to the nerve hub. The LED control card is divided into a sending card and a receiving card. It processes the signal provided by the computer through the sending card and then partitions it to each unit of the LED display by the receiving card. If there is a problem with the sending card, the whole LED display will not work normally. If part of it is not working properly, it is caused by the receiving card. When replacing the sending card, be sure to ensure the type and version of the control card No, because the full-color LED display circuit is constantly updated, and the control card will also be upgraded regularly. If the model is different, the problem will not be ruled out. .