Einleitung
Prerequisite only guide for removing the logic board assembly from a 21.5" Retina 4K 2017 iMac.
Was du brauchst
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Gently pull the left speaker cable straight out of its socket on the logic board.
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De-route the left speaker cable by pulling it straight up out of the retaining clip in the back of the rear enclosure.
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Similarly to the previous step, de-route the SATA and power cables by pulling the braid straight up out of the retaining clip.
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Peel up the piece of tape connecting the left speaker connector to the SATA power and data cables.
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Flip up the metal retaining bracket on the FaceTime camera cable connector.
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Pull the FaceTime camera cable straight out of its socket on the logic board.
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Remove the two 4.0 mm T5 Torx screws securing the four antenna connectors to the AirPort/Bluetooth card.
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Disconnect all four antenna connectors by prying them straight up from their sockets on the AirPort/Bluetooth card.
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Gently pull the right speaker cable connector straight down and out of its socket on the logic board.
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Use the flat edge of a spudger to pry the headphone jack cable connector from its socket on the logic board.
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Remove the following T8 Torx screws securing the exhaust duct to the rear enclosure:
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Two 6.2 mm screws
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Two 4.7 mm screws
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Use the tip of a spudger to flip open the retaining flap on the microphone ribbon cable ZIF socket.
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Gently pull the microphone ribbon cable straight out of its socket.
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Remove the four 7.3 mm T8 Torx screws securing the logic board to the rear enclosure.
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Tilt the top of the logic board away from the rear enclosure.
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As you tilt the logic board, pull the right speaker connector to the right and out of the way of the board.
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Lift the logic board straight up and out of the iMac.
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Use a USB flash drive and/or ethernet cable to keep the logic board seated correctly while you tighten the screws.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
