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批踢踢實業坊 ask 板

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[請問] USB無法辨識

Sep 4th 2013, 20:29, by changatcmu

作者changatcmu (台中金城武)

看板ask

標題[請問] USB無法辨識

時間Wed Sep 4 20:29:12 2013

想請問一下最近買了一台小投影機因為需要接電腦的USB 所以他有附一條原廠的線但是後來覺得這條線太短又去燦*買了一條3M的延長線問題就發生了用原廠的線接到電腦時他可以讀到這個裝置但用自己買的線的時候他就讀不到不是完全讀不到是會顯示無法辨識這個USB裝置之類的然後就不跑了請問是什麼問題是電腦還是線應該不會是裝置本身因為原廠讀的到會問跟電腦本身有沒有關係是因為在插其他隨身碟的時候可以讀的到可是要等個30秒才會出現網路上有看說可能是電力不足不知道跟這有沒有關係麻煩大家了 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.35.31.76

推 Lailungsheng:看起來是線 09/04 20:30

→ changatcmu:那請問怎麼看主機板電力跟這問題的關聯(印象中有看到 09/04 20:31

→ OrzOGC:線太爛了.買有金屬絲包起來的 09/04 20:32

→ KeyFSN:線太長訊號衰減 09/04 20:41

→ changatcmu:意思是說買好一點的線可以解決這個問題嗎QQ 09/04 20:43

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