優派ViewSonic VX2255wmb 22吋LCD液晶螢幕電源燈亮無背光維修實例
台南液晶螢幕維修/台南液晶電視維修/台南偏光膜更換/台南筆電維修/台南電腦維修/台南印表機卡紙維修/台南手機面板觸控板破裂更換/台南筆電面板破裂更換/台南3C維修
這台優派ViewSonic VX2255wmb液晶螢幕.電源燈亮.背光無法啟動.
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背光無法啟動.
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液晶螢幕型號:ViewSonic VX2255wmb
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ViewSonic VX2255wmb-2
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拆機.
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主機板沒有問題.
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那就看一下電源高壓板.
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小C都無異狀.
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這高壓電容燒黑了.
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機板也有炭化痕跡.
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比對正確容值並更換.
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小C也一併全部換新.
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檢測輸出電壓.
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量測沒有問題.
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試機已可點亮背光.
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組裝熱機測試.
準備通知主人交機.
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敬請指教
挺好~!
http://www.yyj.tw/