发布时间:2025-02-08 04:26:28
1、把四联单控开关面板的接线口L1、L2、L3、L4用导线连接起来并从5根电线中找出火线压接上。
2、另外四颗线是四盏灯的回火线,分别接在L1-1、L2-1、L3-1、L4-1接线端上。
惠普deskjet2621打印机如何加墨_惠普deskjet2621打印机加墨教程
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