Publisher: Supplier of LED Display Time: 2018-07-20 Views: 2502
Secondly, we have to judge whether the power supply is good. If the power supply fails, it will directly cause several boards not to light up or be abnormal at the same time, because one power supply controls several boards at the same time. If the LED electronic display screen is in the same small area and several boards do not display or display abnormally, you should consider whether the power supply is broken. The most direct detection method is to take the DC voltage of the meter and check whether the output voltage is between 4.9~5.5V. If it is not within this range, it is necessary to consider replacing the power supply.
Finally, we have to judge whether the LED unit board is good. The LED display signal is transmitted from the output pin header of one unit board to the input signal of another board, so if there is a problem with one board, it will cause the entire row behind it to be off or abnormal. Therefore, when there is a problem with a row of LED electronic displays, we should replace the board that started abnormally in this row, or use a long cable to jump over this board directly, and then see if the board behind it is displayed. normal.
The above are the three solutions to the bright lines on the LED display summarized by the editor. I hope it can help everyone.