Introduction

This guide goes through the steps on how to replace the mother board for the Acer Chromebook C720-2103. This is a hard replacement guide and also involves the removal of the battery, fan, and solid state drive. In the guide a #0 Phillips screwdriver will be needed. The main parts of the replacement guide is removing screws, different kinds of cables and the actual part. Make sure the device is powered off during this replacement as there is a possibility of electrocution. Be extremely gentle with all parts as most of the parts are fragile.

Parts

No parts required.

Turn the device over so the bottom of the device is facing up. Remove all thirteen 6mm screws using a  Phillips #0 screwdriver.
  • Turn the device over so the bottom of the device is facing up.

  • Remove all thirteen 6mm screws using a Phillips #0 screwdriver.

  • Removal of the battery is necessary to prevent electric shock during part replacement.

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Wedge a plastic opening tool between  the back casing and the rest of the device.
  • Wedge a plastic opening tool between the back casing and the rest of the device.

    • The easiest place on the device separate between the hinges of the screen.

  • Apply pressure up and down carefully, until backing pops up. Repeat this process in multiple spots if needed.

    • Do not apply too much force. This will crack the plastic.

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Remove the three 6mm screws indicated by the red circles with a #0 Phillips screw driver.
  • Remove the three 6mm screws indicated by the red circles with a #0 Phillips screw driver.

  • Remember to keep screws separated by step and their location in the device. This will help prevent confusion during reassembly.

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Pull the rainbow cable connector out of the white terminal by wiggling it gently from side to side with your fingers. Be careful when removing the cable. Too much force can damage the motherboard or the cable connector itself.
  • Pull the rainbow cable connector out of the white terminal by wiggling it gently from side to side with your fingers.

  • Be careful when removing the cable. Too much force can damage the motherboard or the cable connector itself.

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Lift the battery straight up, then out of the device, using your fingers. Avoid grazing interior components of the device while removing the battery. Damage to any component can be very costly.
  • Lift the battery straight up, then out of the device, using your fingers.

  • Avoid grazing interior components of the device while removing the battery. Damage to any component can be very costly.

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Unscrew the two 6mm screws attaching the fan to the device base with a #0 Phillips screwdriver. The two screws are permanently set into the fan. They will unscrew from the base but will remain in the fan component.
  • Unscrew the two 6mm screws attaching the fan to the device base with a #0 Phillips screwdriver.

  • The two screws are permanently set into the fan. They will unscrew from the base but will remain in the fan component.

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Remove the black and white wires from the circuit board by gently pulling up on them closest to their terminals. Once this has been done follow both wires through the fan as they are still attached to the back of the device.
  • Remove the black and white wires from the circuit board by gently pulling up on them closest to their terminals.

  • Once this has been done follow both wires through the fan as they are still attached to the back of the device.

  • Remember where each wire goes and that the black wire is supposed to attach to the terminal closest to the battery and the red one attaches furthest from the battery.

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Carefully detach the tape from the circuit board, but not the wire as this can damage the wiring.  Take both sides of the white/beige cable connector and move it from side to side carefully pulling away from the terminal until it is removed. Do not remove the tape from the wiring as this can damage the wire.
  • Carefully detach the tape from the circuit board, but not the wire as this can damage the wiring. Take both sides of the white/beige cable connector and move it from side to side carefully pulling away from the terminal until it is removed.

  • Do not remove the tape from the wiring as this can damage the wire.

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Carefully remove the entire fan straight upwards from the device to ensure not to damage the circuit board it is attached to. Carefully remove the entire fan straight upwards from the device to ensure not to damage the circuit board it is attached to.
  • Carefully remove the entire fan straight upwards from the device to ensure not to damage the circuit board it is attached to.

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Remove one 6mm screw using a Phillips #0 screwdriver.
  • Remove one 6mm screw using a Phillips #0 screwdriver.

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Carefully remove the solid state drive from the solid state drive slot by sliding it downward away from the motherboard. Carefully remove the solid state drive from the solid state drive slot by sliding it downward away from the motherboard. Carefully remove the solid state drive from the solid state drive slot by sliding it downward away from the motherboard.
  • Carefully remove the solid state drive from the solid state drive slot by sliding it downward away from the motherboard.

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Most of the screws on the  mother board have already been removed but there are still 5screws left,  in which you will have to deal with, as indicated by the  red circles.
  • Most of the screws on the mother board have already been removed but there are still 5screws left, in which you will have to deal with, as indicated by the red circles.

  • Be careful not to damage any aspect of the mother board as it is fragile.

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Detach the blue ribbon cables from the mother board by carefully pushing  the white/beige hinges away from where the battery used to be with your fingers. Now pull the blue ribbons towards where the battery used to be until they are no longer connected to the mother board.
  • Detach the blue ribbon cables from the mother board by carefully pushing the white/beige hinges away from where the battery used to be with your fingers. Now pull the blue ribbons towards where the battery used to be until they are no longer connected to the mother board.

  • Be sure not to pull on the cables to hard as they are fragile and can be expensive to replace.

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Carefully detach the tape from the circuit board, but not the wire as this can damage the wiring. Take both sides of the white cable connector and move it from side to side carefully pulling away from the black terminal until it is removed.
  • Carefully detach the tape from the circuit board, but not the wire as this can damage the wiring. Take both sides of the white cable connector and move it from side to side carefully pulling away from the black terminal until it is removed.

  • Now take take both sides of the black cable connector and move it from side to side carefully pulling away from the beige terminal until it is removed.

  • Be sure not to pull on the cables to hard as they are fragile and can be expensive to replace.

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This is what it should look like once you have completely  removed it. Notice how big and complex the mother board has to be so it can connect everything together, but yet its so light and fragile.
  • This is what it should look like once you have completely removed it.

  • Notice how big and complex the mother board has to be so it can connect everything together, but yet its so light and fragile.

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Conclusion

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

Matthew Holt

Member since: 10/17/2017

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