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星期四晚上收到吳Sir寄來的轉速表,里程數才9694,相當新的表
維修前先量看看,看起來沒啥異常的感覺
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總之還是拆了維修,右下角那顆螺絲有被換過,大了好幾號
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表頭拆下
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零件的狀況似乎也還滿好的,里程數少少
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拆下來了
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零件的狀況,電容狀況也正常
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另一面,39Ω也沒燒掉
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表頭拆下
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零件解焊
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解焊完成
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拆下零件
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有顆基納似乎有裂掉,輕輕一拉變二半
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零件退下
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焊上IC腳座
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完成度30%
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焊好了
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表底有寫製造日期,民國81年嗎…26歲的轉速表了
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焊回表頭
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翻面,測試看看
校正一下可變電阻,看起來還滿OK的,希望裝上車也正常
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表頭組回
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新的白鐵螺絲
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角落這顆太鬆了
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只好用大一號的鎖上
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處理一下接點的PIN
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用工具打磨一下讓接點過電順暢
然後轉速表灰線的公接頭也磨一磨,上面有層黑漆
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再試一次
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面板擦一擦,好了
通知準備寄回