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    【888贵宾会】教您LED显示屏故障维修插拔法

    通过将功能电路板插件“插入”或“拔出”来寻找故障的方法虽然简单,却是一种常用的有效方法,能迅速找到故障的原因。(1)先将故障LED大屏与所有连接辅助电路的所有插件板拔出,再合上故障LED显示屏电源开关,若故障现象仍出现,则应仔细检查主电路、母版部分是否有故障。(2)若故障消失,仔细检查每块插件板,观察是否有相碰和短路,(如碰线、短接、插针相碰等),若有,则排除;