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泰山之石
A
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樓主  發(fā)表于: 2019-01-16 10:37
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請各位師傅分析下什么原因造成？是灰塵造成？還是開(kāi)關(guān)質(zhì)量造成？開(kāi)關(guān)估計是80-90年代的日本設備原裝的。特別是留線(xiàn)頭的端子螺絲已經(jīng)變形且看到銅汁已經(jīng)與開(kāi)關(guān)的絕緣膠木融合。中間的端子完全融掉了。
honggun
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1樓  發(fā)表于: 2019-01-16 10:53
導線(xiàn)接觸不良

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