Introduzione
Use this guide to remove the logic board and strip it of all its peripherals: SSD, AirPort, heat sink and CPU, and RAM.
Before beginning any work on your iMac: Unplug the computer and press and hold the power button for ten seconds to discharge the power supply's capacitors.
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.
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Starting on the left of the display, near the power button, insert the iMac Opening Tool into the gap between the glass panel and the rear case.
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With the cards inserted as shown near the corners, gently twist the cards to increase the gap between display and case.
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If there are any sections that seem to stick and won't separate, stop twisting and use one of the cards to cut the adhesive in the problem area.
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Begin to lift the top of the display up from the frame.
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With the hinge free to move, the iMac will be unbalanced and hard to work on. Repairs can be completed with the iMac laying down, but are faster and easier with an iMac service wedge.
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Pull straight up on the SATA data/power cable to disconnect it from the drive.
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Use the tip of a spudger to disconnect the fan cable's connector from its socket on the logic board.
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Use the flat end of a spudger to disconnect each of the four antenna connectors from the AirPort/Bluetooth card.
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Pull up on the SATA power cable connector to disconnect it.
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Unplug the SATA data cable connector by lifting it up.
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Remove the SATA cable from the logic board assembly to get it out of the way and prevent it from being damaged.
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Use your thumbs or index fingers to unlock the tray by pushing the tabs outward, away from the RAM.
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Pull the tabs out and up, swinging the RAM tray up to a near-vertical position.
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Remove two 3.7 mm T5 screws from the back of the logic board.
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Remove the power supply cable from its connector by pulling it parallel to the logic board.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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3 Commenti
The logic board in my iMac 27" 13, 2 (2546) late 2012 needs to be replaced. Will the logic board from the 27" 14,2 (2639) late 2013 match and fit inside the 27" 13,2 late 2012 housing?
I've looked all over and have yet to find a straight answer. Thanks in advance!!!