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MacBook Unibody Model A1278 Keyboard Replacement

简介

In this guide, you will be able to replace a damaged keyboard on your MacBook with a new keyboard or a backlit one.

你所需要的

  1. MacBook Unibody Model A1278 Keyboard Replacement, Initial Preparations: 步骤 1 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement, Initial Preparations: 步骤 1 中的图像 2，2

    • Let's Start:

    • Shut down the Mac and lay it upside-down.

    • Press the little lever to raise the access door.

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  2. MacBook Unibody Model A1278 Keyboard Replacement, Access Door: 步骤 2 中的图像 1，1

    • Lift the access door off the MacBook.

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  3. MacBook Unibody Model A1278 Keyboard Replacement, Battery: 步骤 3 中的图像 1，1

    • Pull the battery straight out of the MacBook using the plastic tab connected to the battery.

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  4. MacBook Unibody Model A1278 Keyboard Replacement, Lower Case: 步骤 4 中的图像 1，1

    • Remove the eight screws located on the bottom of the MacBook.

    • One 3 mm Phillips screw

    • Three 13.5 mm Phillips screws

    • Four 3.5 mm Phillips screws

    • The four 3.5 mm Phillips screws strip extremely easily. Use caution.

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  5. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 5 中的图像 1，1

    • Lift the lower case straight from the MacBook.

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  6. MacBook Unibody Model A1278 Keyboard Replacement, Mid Wall: 步骤 6 中的图像 1，1

    • Remove the four 10.3 mm Phillips screws that hold the mid wall.

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  7. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 7 中的图像 1，1

    • Remove the mid wall.

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  8. MacBook Unibody Model A1278 Keyboard Replacement, Fan: 步骤 8 中的图像 1，3 MacBook Unibody Model A1278 Keyboard Replacement, Fan: 步骤 8 中的图像 2，3 MacBook Unibody Model A1278 Keyboard Replacement, Fan: 步骤 8 中的图像 3，3

    • Use the spudger to pry the fan connector straight from the logic board.

    • It is useful to twist the spudger axially from beneath the fan cable wires to release the connector.

    • The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket. This might look slightly different on your MacBook.

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  9. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 9 中的图像 1，1

    • Remove the three screws holding the fan in place.

    • Two 5 mm Phillips screws

    • One 7 mm Phillips screw

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  10. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 10 中的图像 1，1

    • Lift the fan straight out from the logic board.

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  11. MacBook Unibody Model A1278 Keyboard Replacement, Battery Cable Cover: 步骤 11 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement, Battery Cable Cover: 步骤 11 中的图像 2，2

    • Remove the Phillips screw securing the battery cable cover.

    • Lift the cover straight from the upper-case.

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  12. MacBook Unibody Model A1278 Keyboard Replacement, Battery Level Indicator: 步骤 12 中的图像 1，1

    • Use the spudger to pry the battery level indicator straight from the logic board.

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  13. MacBook Unibody Model A1278 Keyboard Replacement, Battery Cable: 步骤 13 中的图像 1，1
    在这个步骤中使用的工具：
    Tweezers
    $4.99
    购买

    • Pull the battery cable away from the logic board.

    • This is a little tricky. If you cannot disconnect it, you can use tweezers and the spudger to help.

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  15. MacBook Unibody Model A1278 Keyboard Replacement, Keyboard: 步骤 14 中的图像 1，3 MacBook Unibody Model A1278 Keyboard Replacement, Keyboard: 步骤 14 中的图像 2，3 MacBook Unibody Model A1278 Keyboard Replacement, Keyboard: 步骤 14 中的图像 3，3

    • Use the tip of the spudger to lift the keyboard cable retaining flap.

    • Pull the cable away from its socket to disconnect it. Make sure you lift the retaining flap before pulling the cable or you could damage it.

    • Disconnect the cable on the right if your Mac has this. This cable is the backlight on the keyboard. Remove it in a similar way as above.

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  16. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 15 中的图像 1，1

    • Use the flat end of the spudger to pry the trackpad cable straight from the logic board.

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  17. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 16 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 16 中的图像 2，2

    • Remove the two 5mm Phillips screws securing the keyboard flex bracket to the upper case.

    • Lift it straight from the upper-case.

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  18. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 17 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 17 中的图像 2，2

    • Use the tip of the spudger to lift the IR and sleep sensor retaining flap.

    • Pull the ribbon cable away from the logic board.

    • The retaining flap and the ribbon cable are both extremely sensitive, use caution when disconnecting.

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  19. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 18 中的图像 1，1

    • Use the flat end of the spudger to pry the hard drive cable straight from the logic board.

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  20. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 19 中的图像 1，1

    • Now, pry the optical drive cable straight from the logic board using the spudger.

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  21. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 20 中的图像 1，1

    • Disconnect the display data cable by pulling it away from the logic board.

    • You can use tweezers if you need.

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  22. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 21 中的图像 1，1

    • Use the flat end of the spudger to pry the subwoofer cable straight from the logic board.

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  23. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 22 中的图像 1，1

    • Remove the two Phillips screws securing the subwoofer.

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  24. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 23 中的图像 1，1

    • De-route the Display Data Cable from the subwoofer.

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  25. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 24 中的图像 1，1

    • Pull the subwoofer out of the upper-case. The right speaker is still connected, so do not pull it out completely.

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  26. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 25 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 25 中的图像 2，2

    • Remove the two Phillips screws securing the optical drive bracket.

    • Be careful with the screw on the left, it is connected to the display data cable itself.

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  27. MacBook Unibody Model A1278 Keyboard Replacement, Optical Drive: 步骤 26 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement, Optical Drive: 步骤 26 中的图像 2，2

    • Remove the three screws securing the optical drive.

    • Pull the Optical Drive out of the upper-case.

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  28. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 27 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 27 中的图像 2，2

    • Your MacBook may not have this.

    • Remove the two 4 mm Phillips screws securing this bracket.

    • Lift it out of the upper-case.

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  29. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 28 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 28 中的图像 2，2

    • Use the plastic tab on the the display cable and rotate it towards the DC-in part of the Mac.

    • Pull it away from the logic board.

    • If this cable is not pulled straight from the logic board, it might brake. Use caution.

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  30. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 29 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 29 中的图像 2，2

    • Remove the four Phillips screws as located in the picture.

    • One 7mm Phillips screw

    • One 5mm Phillips screw

    • Two 7 mm Phillips screws

    • These screws secure the DC-in board.

    • Remove the bracket securing the display cable.

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  31. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 30 中的图像 1，1

    • Use the tip of the spudger to lift the microphone from the upper-case.

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  32. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 31 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 31 中的图像 2，2

    • Remove the screws securing the logic board.

    • Four 3mm Phillips screws

    • One 3.5mm Phillips screw

    • The DC-in board screws should already be removed at this point.

    • Lift the logic board out of the case as show in the picture.

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  33. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 32 中的图像 1，1

    • Alright guys, we are almost done. Your MacBook will probably look something like this.

    • If it does look slightly different, do not worry, you should have all of the necessary parts removed now.

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  34. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 33 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 33 中的图像 2，2

    • Remove the two screws holding the keyboard bracket.

    • Lift the bracket out of the upper-case.

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  35. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 34 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 34 中的图像 2，2

    • Before you do this, BE EXTRA CAREFUL!

    • There is a very thin piece of plastic glued to the keyboard. Start at the edge and slowly lift it from the upper-case as shown in the image.

    • If it tares a little, you will not damage anything too major. But try your best not to let it tare.

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  36. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 35 中的图像 1，1

    • There is a hard, transparent piece of plastic on the keyboard; lift that straight out of the upper-case.

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  37. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 36 中的图像 1，2 MacBook Unibody Model A1278 Keyboard Replacement: 步骤 36 中的图像 2，2

    • Remove the two tiny screws securing the power button.

    • Lift it from of the upper-case.

    • The power button is still connected to the keyboard, don't pull it out completely.

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  38. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 37 中的图像 1，1

    • Now the very long and slightly annoying part. There are about 65 Phillips screws securing the keyboard. Yes, you have to remove all of them. Good luck!

    • There might be more than 65 screws on your MacBook. Do not worry if this number is different.

    • I recommend you counting all of your screws while unscrewing them. You'll keep better track of them like that.

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  39. MacBook Unibody Model A1278 Keyboard Replacement: 步骤 38 中的图像 1，1

    • After you have removed the screws, lift the keyboard out of the upper-case. The power button will come with the keyboard.

    • The keys will not fall out, they are all connected to the metal base of the keyboard.

    • Do not bend the keyboard, bad things will happen like that!

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结论

Almost done! Insert the new keyboard in your MacBook and follow these steps in reverse order to put your MacBook back together.

另外一个人完成了本指南。

作者

与4其他贡献者

lyonmissions

于03/29/13注册

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