1. If the new screen is installed and powered on, it will take time. It may be that the control card is set to scan incorrectly, or the cable is not plugged in ……
Does outdoor LED display need cleaning? There is no doubt that the answer is yes. After using outdoor LED display screen for a period of time, there will be dust, impurities, dirt, etc. on the display screen. If not cleaned, it will have adverse effects o
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