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Acer Chromebook CB3-431-C5EX Motherboard Replacement

简介

This is a guide to replace a faulty motherboard in an Acer Chromebook CB3-431-C5EX laptop. You will need a Phillips #0 screwdriver, iFixit opening tool, Tweezers, and a Heat gun. Be cautious when removing the motherboard because of having to handle wires.

你所需要的

  1. Acer Chromebook CB3-431-C5EX Motherboard Replacement, Bottom Panel: 步骤 1 中的图像 1，1

    • Working on your device while it is turned on may result in electric shock. Make sure to shut down and unplug your device before you begin.

    • Turn device over so the bottom panel is facing you.

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  2. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 2 中的图像 1，1

    • Remove the eight 4mm Phillips #0 screws.

    • Remove the two 6mm Phillips #0 screws.

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  3. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 3 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 3 中的图像 2，2

    • Insert a plastic opening tool into the crack between the bottom panel and the side of the computer.

    • Gently pry the panel off the computer by continuously pulling up and on the panel and moving the plastic opening tool around the crack until the panel comes off.

    • There are several clips holding the cover in place.

    • Remove the bottom panel and set it aside.

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  4. Acer Chromebook CB3-431-C5EX Motherboard Replacement, Battery: 步骤 4 中的图像 1，1

    • Remove the two 4mm Phillips #0 screws on either side of the battery pack that are securing it in place.

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  6. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 5 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 5 中的图像 2，2

    • Disconnect the taped white 8-pin cable on the bottom right of the battery pack.

    • Use thumbnail to pull on the small protruding tabs on either side of the connector.

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  7. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 6 中的图像 1，1

    • Carefully lift the entire battery pack out of the laptop.

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  8. Acer Chromebook CB3-431-C5EX Motherboard Replacement, Motherboard: 步骤 7 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement, Motherboard: 步骤 7 中的图像 2，2

    • Remove the 4.7 mm screw from the Wi-Fi card using a Phillips #0 screwdriver.

    • Remove the Wi-Fi card from the laptop.

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  9. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 8 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 8 中的图像 2，2

    • Unplug the black wire connecting the small circuit board to the motherboard.

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  10. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 9 中的图像 1，3 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 9 中的图像 2，3 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 9 中的图像 3，3

    • Lift the respective white and black tabs and slide the ribbon cables out of their connectors.

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  11. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 10 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 10 中的图像 2，2

    • Carefully remove the display adapter from the motherboard.

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  12. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 11 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 11 中的图像 2，2

    • Remove the black tab connecting the motherboard to the keyboard.

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  13. Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 12 中的图像 1，2 Acer Chromebook CB3-431-C5EX Motherboard Replacement: 步骤 12 中的图像 2，2

    • Remove the five 4.7 mm screws from the motherboard using a Phillips #0 screwdriver.

    • Remove the two 4.5 mm screws from the motherboard using a Phillips #0 screwdriver.

    • Gently remove motherboard from the laptop.

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结论

To reassemble your device, follow these instructions in reverse order.

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