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我把120 v 的supply 从circuit board上拔下来,测这个拔下来的头,有正常交流电压.

jameschen6 (梦想农庄-因信称义)

我把120 v 的supply 从circuit board上拔下来,测这个拔下来的头,有正常交流电压.

opener 上就有 一个 light (白的,圆的 - This is a light, right?),program 三个按钮 边上 有两个lights (小点和长条),还有两个外接灯泡(两个黑的灯口)。除此以外,用线连得 wall mounted switch,door 两侧的 用线连的 beam light 都看不到亮,这些都是从circuit board 连线出去的,都看不到动静, 所以,我的意思,circuit board 上没电。fuse seems ok,

12 v 直流从哪里测呀?谢谢

 

 

(#11856522@0)
2018-12-27 -05:00
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