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使用本指南更换 Apple 专有的刀片式固态硬盘(AHCI/PCIe x2)。
本指南适用于配备固态硬盘的高规格 iMac Intel 21.5" EMC 2805 机型。
在这个步骤中使用的工具:
iMac Intel 21.5" Cardboard Service Wedge
$4.99
购买
如果铰链可以自由活动,iMac将会失去平衡,维修很难进行。有了 iMac 维修支撑盒,维修操作将会更加丝滑,但是没有这玩意儿也行。
如果你使用的是 iFixit 硬纸板维修楔 ,请按照 这些组装说明 将其组装在一起。
在开始你的iMac的任何维修操作之前:拔掉电源线 ,按住电源按钮至少十秒钟,以释放电源的电容器。
特别注意! 不要触摸电源线上的电容器引线或任何外露焊点,只能触摸电路板边缘。
虽然开屏工具切除了大部分的胶,但显示屏的些许的胶还是会黏在外壳。塑料卡是最后分离粘合剂的必要工具。
让 iMac 躺在桌面上,屏幕朝天。
从 iMac 的右上角开始,往屏幕和后壳之间插一张塑料卡。
请注意不要将塑料卡插入超过0.95厘米,否则可能会损坏内部组件。
如图所示,将两张塑料卡片插入角落附近,轻轻地往侧边扭动来增加显示屏跟主机壳的间隙。
如果有部分的黏胶而无法完全分离的时候,停止扭转,使用其中一张卡片来切开剩余的黏胶。
开始将显示屏上部从框架拉起。
只需抬起显示屏几英寸——因为显示屏的数据线和电源线仍然和主板相连。
用一把镊子翻出显示器排线上的金属固定支架。
小心地将显示器排线从主机板上的插座中拔出。
请务必确保显示器排线连接器从插座拔出。
请务必小心,不要触碰电容器引线或电源背面任何外露的焊点(红色方框)。
抓住显示屏底部边缘粘胶条末端的拉片,将粘胶条拉向 iMac 顶部,将其取下。
对另一条粘胶条重复这一步骤,然后取下。
如果任一胶条在取下前断裂,可用塑料卡片划开剩余的胶条。
将显示屏从机架上抬起,然后从 iMac 上取下。
可能需要从一侧慢慢提起,与剩余的粘合剂剥离。
要非常小心地操作显示屏--它又大又重,而且是玻璃制成的。
如果要更换新的显示屏,可能需要将旧显示屏中的某些组件转移到新显示屏中。
在重新组装过程中,请查看我们的 显示屏粘合剂指南 来安装新粘合剂。
Remove the following five Phillips screws holding the lower support bracket in place:
Four 3.2 mm screws
One 1.7 mm screw
On at least some EMC 2544 machines, all five screws are the same size.
You may need to peel up the display adhesive lining the bottom edge of the iMac enclosure to access the screws.
Insert the tip of a spudger between the right speaker and the antenna cable that is routed into the speaker's right side.
Run the spudger down along the right side of the speaker to pry the antenna cable from its channel in the right speaker.
If the channel is not easily accessible, you can pull the speaker gently away from the case to gain access to the antenna cable.
Remove the following screws securing the hard drive bracket to the rear enclosure:
Two 21 mm T10 Torx screws from the left-hand hard drive bracket.
One 9 mm T10 Torx screw.
One 27 mm T10 Torx screw.
The next few steps bring your hands close to the exposed face of the power supply. Do not touch the face of the power supply or any of the exposed solder. Touching it risks a high voltage shock from the many large capacitors attached to the board.
Use the tip of a spudger to push each side of the power button cable connector and gently walk it out of its socket.
Remove the two 7.2 mm T10 Torx screws securing the power supply to the rear enclosure.
In newer model iMacs these are 7.2 mm T8 Torx screws.
During reassembly, be careful not to trap the power button wire behind the board.
When working on the power supply, be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.
Tilt the power supply forward.
Pull the power supply slightly up and out from the rear enclosure.
Rotate the power supply counterclockwise, lifting the right side up about an inch higher than the left.
Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.
Flip the power supply over to access the DC power cable connection behind the logic board.
Squeeze the tab on the back side of the DC power cable connector and pull it straight out of its socket on the back of the logic board.
You may find it helpful to set the iMac down on its back for the next couple of steps.
Use the flat end of a spudger to press the clip on the side of the AC inlet cable connector inward.
While pressing on the release clip with the spudger, grasp the AC inlet cable, and pull the connector straight out of its socket.
Use the tip of a spudger to walk the left speaker cable connector out of its socket.
It is recommended to first press on one side of the connector, then press on the other side until freed.
Use a pair of tweezers to flip up the metal retaining bracket on the iSight camera cable connector.
Pull the iSight camera cable straight out of its socket on the logic board.
This is a delicate connector that can be easily damaged.
Lift the logic board straight up and out of the iMac.
Be careful not to snag the board on any of the rear case's screw posts.
The I/O inputs at the bottom of the logic board will be the greatest challenge. It is recommended to pull gently to avoid any damage.
When reinstalling the logic board, check the alignment of the exterior I/O ports. The logic board can sit crooked even when secured with all its screws.
Use a USB flash drive and/or ethernet cable to keep the logic board aligned while you screw it in.
即将完成!
要重新组装您的设备,请反向遵循这些说明,并使用我们的 粘贴条指南 重新安装显示屏玻璃。
结论
要重新组装您的设备,请反向遵循这些说明,并使用我们的 粘贴条指南 重新安装显示屏玻璃。
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