Acer Chromebook C740 Motherboard Replacement

はじめに

The motherboard replacement for the Acer Chromebook C740 requires removing the back panel, unplugging several connectors, and removing several screws. The motherboard is the main circuity for the laptop.

必要な工具と部品

手順1 Back Panel

Acer Chromebook C740 Motherboard Replacement, Back Panel: 手順 1、 1の画像 1

Power down the Chromebook and disconnect the power adapter.

編集

手順2

Place the chromebook bottom side up on a flat surface.
Remove the thirteen 7 mm screws with a Phillips #0 screwdriver.

編集

手順3

Acer Chromebook C740 Motherboard Replacement: 手順 3、 3の画像 3

Insert the plastic opening tool into the slit near the hinges and pry upwards to lift the back panel.
Applying pressure may be necessary. A click indicates the panel is ready to come off.

編集

手順4 Motherboard

Acer Chromebook C740 Motherboard Replacement, Motherboard: 手順 4、 3の画像 1

Acer Chromebook C740 Motherboard Replacement, Motherboard: 手順 4、 3の画像 2

Acer Chromebook C740 Motherboard Replacement, Motherboard: 手順 4、 3の画像 3

Flip up the clip holding down the white cable using the spudger.
Pull the cable outwards towards the battery.

編集

手順5

Acer Chromebook C740 Motherboard Replacement: 手順 5、 3の画像 3

Flip up the clip holding down the white cable using the flat end of the spudger.
Pull the cable outwards towards the battery.

編集

手順6

Acer Chromebook C740 Motherboard Replacement: 手順 6、 3の画像 3

Flip up the white clip holding down the connector labelled "MB" using the flat end of the spudger.
Remove the connector by pulling out towards the battery.

編集

手順7

Acer Chromebook C740 Motherboard Replacement: 手順 7、 3の画像 3

Unplug the white 8-wire battery connector from the motherboard by using a spudger to push the two L-shaped indentations towards the battery.
The connector is a tight fit. This process requires going back-and-forth between the two indentations and plenty of patience.

編集

手順8

Acer Chromebook C740 Motherboard Replacement: 手順 8、 3の画像 3

Unplug the black connector attached to the motherboard at the top right of the battery by using a spudger to push the two L-shaped indentations towards the battery.

編集

手順9

Acer Chromebook C740 Motherboard Replacement: 手順 9、 3の画像 3

Peel back the tape covering the white connector at the top-right of the motherboard.
Remove the connector from its fitting by pulling outwards.

編集

手順10

Acer Chromebook C740 Motherboard Replacement: 手順 10、 3の画像 3

Unplug the white connector attached to the right of the fan with the spudger by applying force towards the battery on the two L-shaped indentations.

編集

手順11

Acer Chromebook C740 Motherboard Replacement: 手順 11、 3の画像 3

Disconnect the two white and black wires by holding close to the metal snap-on caps and pulling upwards.

編集

手順12

Remove the four 3.7 mm screws with a Phillips #0 screwdriver.

編集

手順13

Acer Chromebook C740 Motherboard Replacement: 手順 13、 3の画像 3

Loosen the two black screws with a Phillips #0 screwdriver.
These screws cannot be removed. However, simply loosening them allows the heatsink fan to lift away from the motherboard.
Lift the heatsink fan and rotate it away from the mother board to set down outside the laptop.

編集

手順14

Acer Chromebook C740 Motherboard Replacement: 手順 14、 3の画像 3

Remove the 3.63 mm screw in the top right near the hinge with a Phillips #0 screwdriver.
Remove the 3.75 mm screw near the top right corner of the battery with a Phillips #0 screwdriver.

編集