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Precision 7750 維修手冊

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卸下 WWAN 卡

事前準備作業

  1. 按照拆裝電腦內部元件之前中的程序操作。
  2. 取出 SD 卡。
  3. 卸下基座護蓋。

關於此工作

此圖顯示 WWAN 卡的位置，並以圖示解釋卸除程序。

卸下 WWAN 卡

步驟

  1. 鬆開將 WWAN 卡托架固定至系統主機板的 (M2x3) 螺絲。
  2. 從 WWAN 卡抬起 WWAN 卡托架。
  3. 從 WWAN 卡上的連接器拔下天線纜線。
  4. 將 WWAN 卡從系統主機板的對應插槽推出卸下。
    註: 更換主機板時，主機板上標示 WWAN 天線纜線連接的貼紙，必須重新貼回更換用主機板。

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