Dell Inspiron 17" 7786 2-in-1 I/O Board (SD and x2 USB ports) Replacement

Geschrieben von: Antonio Franco
  • Kommentare: 0
Dell Inspiron 17" 7786 2-in-1 I/O Board (SD and x2 USB ports) Replacement

Schwierigkeitsgrad

Moderate

Schritte

18

Zeitaufwand

7 Minuten

Einleitung

The I/O board features 2 USB ports and an SD card reader that sits on the left side of the laptop. This component is also responsible for the power on function, as the component that presses the power button is the fingerprint reader.

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    • Remove the eight M2 5mm screws that secure the base cover using a Phillips #0 screwdriver.

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    • Loosen the three captive screws that secure the base closer to the hinges.

    • Do not attempt to remove the three captive screws! You need only to loosen them. They're supposed to stay on the base cover.

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    • Carefully pry the base cover using an iFixit opening tool in the crevice near the hinges. Guide the pick along the edges and slightly lift upwards as you go along.

    • Do not start from the speaker end of the edges when opening, or you may cause further damage to your device!

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    • Carefully remove the base cover from the laptop.

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    • Remove the screw holding down the small bracket for the wireless card using a Phillips #0 screwdriver.

    • Remove the black wired connection from the port over the black triangle.

    • Remove the wire with the white marking from the port above the white triangle.

    • Pull the Wi-Fi card out of its slot.

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    • Gently remove the I/O cable.

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    • Remove the fan cable from the motherboard.

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    • Remove two 3 mm screws that secure the fan using a Phillips #0 screwdriver.

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    • There is a little piece of tape/sticker on the fan that connects it to the heat sink. Gently remove this.

    • Lift the fan off the palm rest assembly.

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    • Loosen seven 3 mm captive screws securing the heatsink to the motherboard using a Phillips #0 screwdriver.

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    • Lift the heatsink off the motherboard.

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    • Ensure that you have your device opened flat at a 180 degree angle. This will make removal easier.

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    • Locate the ribbon cables for the assembly on the right hand side marked "MB1" and "MB2."

    • The "MB1" ribbon is locked with a copper/brass colored handle that must be lifted upwards. Then you can remove the ribbon by pulling it away from the socket.

    • The "MB2" ribbon is locked in its socket with a black latch. Using a non-metallic precision tool (such as tweezers) lift the latch and pull away the MB2 cable.

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    • Remove the two screws holding down the assembly on the right hand area using a Phillips #00 screwdriver.

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    • Remove the screw protecting the endpoints of the NIC cables and NIC chip using a Phillips #0 screwdriver.

    • Gently pull away the cabling from the NIC chip.

    • The wires can be removed without removing the heat sink, though this is not advised if you are not familiar with the layout.

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    • Remove the two screws holding down the bracket of the assembly on the left hand side using a Phillips #0 screwdriver.

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    • Lift the display assembly upwards away from the palm/main assembly.

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    • Lift the latch holding down the ribbon cable on the I/O board, then pull it away using the blue tab.

    • Lift the I/O board upwards to remove it from the assembly.

Abschluss

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

Tinte & Feder

Antonio Franco

Mitglied seit: 25/08/22

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