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维修一台九阳电压力锅不通电故障

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Post time: 2021-3-24 22:28:06
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接手一台九阳电压力锅不通电故障,型号是JYY-50C3,单独测量电源板12v,5v偶尔有,接上显示板就无电,测量显示板没有短路。用维修电源的5v给显示板供电显示正常,更换78L05后试机正常,对比好坏两个78L05阻值都一样,这么小个的78L05久临战场下岗也在所难免啊。

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Post time: 2021-4-2 12:32:34
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谢谢楼主的经验分享,元件质量或者性能问题也是比较头疼的问题之一
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