小(Xiao)间(Jian)距(Ju)LED屏(Ping)维(Wei)护(Hu)注(Zhu)意(Yi)事(Shi)项(Xiang) 安(An)全(Quan):(?)在(Zai)进(Jin)行(Xing)任(Ren)何(He)维(Wei)修(Xiu)操(Cao)作(Zuo)前(Qian),(?)确(Que)保(Bao)显(Xian)示(Shi)屏(Ping)断(Duan)电(Dian),(?)以(Yi)防(Fang)触(Chu)电(Dian)或(Huo)设(She)备(Bei)损(Sun)坏(Huai)。(?)