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iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement

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Giriş

Prereq for removing logic board.

Neye ihtiyacın var

  1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement, Logic Board Assembly: adım 1, 2 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement, Logic Board Assembly: adım 1, 2 resimden 2.

    • Push on each side of the left speaker cable connector with the tip of a spudger and gently walk it out of its socket.

    Düzenle

  2. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 2, 2 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 2, 2 resimden 2.

    • If necessary, use a pair of tweezers to gently peel the tape securing the left speaker cable to the SATA data/power cable.

    • This tape only needs to be removed if you are removing the left speaker.

    Düzenle

  3. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 3, 3 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 3, 3 resimden 2. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 3, 3 resimden 3.

    • De-route the left speaker cable by pulling it straight up out of the retaining clip in the back of the rear enclosure.

    • In a similar fashion, lift the combo SATA data/power cable up out of the retaining clip.

    Düzenle

  4. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 4, 3 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 4, 3 resimden 2. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 4, 3 resimden 3.

    • Use the flat edge of a spudger 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.

    • Do not use excessive force. This is a delicate connector that can be easily damaged.

    Düzenle

  6. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 5, 3 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 5, 3 resimden 2. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 5, 3 resimden 3.

    • Use the flat edge of a spudger to disconnect each of the four antenna connectors from the AirPort/Bluetooth card.

    • Note the original positions for each connector when reconnecting the cables.

    Düzenle

  7. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 6, 3 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 6, 3 resimden 2. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 6, 3 resimden 3.

    • Use the flat edge of a spudger to pry the headphone jack cable connector from its socket on the logic board.

    • Push the cable slightly to the right to clear it for the removal of the logic board.

    Düzenle

  8. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 7, 1 resimden 1.

    • Remove the following screws securing the exhaust duct to the rear enclosure:

    • Two 6.3 mm T8 screws

    • Two 4.7 mm T8 screws

    Düzenle

  9. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 8, 1 resimden 1.

    • Remove the four 7.2 mm T10 screws securing the logic board to the rear enclosure.

    Düzenle

  10. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 9, 3 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 9, 3 resimden 2. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 9, 3 resimden 3.

    • Tilt the top of the logic board away from the rear enclosure.

    • 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 boards at the bottom of the logic board will be the greatest challenge. It is recommended to pull gently to avoid any damage.

    Düzenle

  11. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 10, 2 resimden 1. iMac Intel 21.5" EMC 2638 Logic Board Assembly Replacement: adım 10, 2 resimden 2.

    • When installing the logic board, take care to align the exterior I/O ports correctly. The logic board can sit crooked even when secured with all its screws.

    • Use a USB flash drive and/or ethernet cable to ensure the logic board is seated correctly while you screw it in.

    Düzenle
Sonuç

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

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