source:other news release time:2023-03-25 Hits: Popular:led screen wholesaler
First of all: determine the HUB board type used by the LED display module or the LED display unit board, so that the interface definition of the cable is the same.
Second: According to different types of LED display modules or LED display unit boards, send corresponding programs to the receiving card to ensure that the LED display module and LED display unit board are displayed in the correct program. This is to find the fault to find the fault The premise of the reason. Generally, the module or unit board is printed on the PCB board.
Finally: Observe the phenomenon of LED display module or LED display unit board to determine the initial failure. For example, common blind lights, string points, small squares, etc. The use of a multimeter to find the fault is mainly to use the short -circuit detection method above to detect the chip and the lamp feet.
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