Introduction
Prereq only.
What you need
-
-
Push on each side of the left speaker cable connector with the tip of a spudger and gently "walk" it out of its socket.
-
-
-
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.
-
-
-
-
Use the flat edge of a spudger to disconnect each of the four antenna connectors from the AirPort/Bluetooth card.
I broke off one of the antenna connectors when I took off the antenna wires, but the new 802.11ac card is working:) I seems the way to take off the wires is lifting it up from the wire side. In hindsight I just wasn´t careful enough.
how do I check a working logic board
If you have a pair of angled tweezers, they work well for grabbing under the connector so that you aren’t pulling on the wire. The head of the T10 screwdriver works well for pressing them back on.
iMac 2017 EMC 3069 this has the antenna brackets with two T5
-
-
-
Use the flat edge of a spudger to pry the headphone jack cable connector from its socket on the logic board.
Unlike the rest of the connectors on the logic board, this one lifts up away from the board rather than to the side. That “Push the cable slightly to the right.” notation is after the connector is free.
-
-
-
Remove the following screws securing the exhaust duct to the rear enclosure:
-
Two 6.3 mm T8 screws
-
Two 4.7 mm T8 screws
Weirdly, these screws didn’t work with my T8 driver. Not with T6 or T10.
Every other screw (to this point) has been fine. Hmm.
??? The T8 worked fine for me. Not sure what the difference would be.
Fare molta attenzione alla vite in fondo a destra, è facile (soprattutto se la punta del proprio cacciavite non è magnetizzata) che la vite si perda sotto alla Logic board. Se la punta del cacciavite non è magnetizzata consiglio o di utilizzare un magnete esterno o di utilizzare delle pinze mentre si svita la vite in modo da non incorrere in questo problema.
-
-
-
Remove the four 7.2 mm T10 screws securing the logic board to the rear enclosure.
When reinstalling the logic board, install four screws loose. Insert thumb drives into the back in all slots to ensure alignment. Once aligned, then tighten screws.
On some models there is a tiny microphone cable connector, just above the lower left logic board screw. Remove by carefully pulling straight down. There is also a piece of insulating plastic w/adhesive on top of the screw which can be pulled off prior to removal. Save and reuse with the same screw on installation.
-
-
-
Tilt the top of the logic board away from the rear enclosure.
-
Lift the logic board straight up and out of the iMac.
When inserting the logic board back, pay attention of the position of the I/O connectors. When it is back in place, put a USB / Thunderbolt cable into the connectors to ensure the perfect alignment.
This is fantastic advice. I used a combination of USB and display port plugs to ensure proper alignment and help keep the logic board steady while i screwed it back in. Thank you!!
kazoodac -
ive gotten this far and i still have one question, i’m replacing my HDD With A SSD should i also remove the original Blade drive ? and run exclusively off the ssd, ? i wasn’t 100 on whether or not i was getting the fusion set up so i’m not in possession of a upgraded blade, so i though this was a good question id hadn’t seen asked.
-
To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
As noted in the right speaker cable section, the two corners of the connector are latches that need to be pushed toward the center of the connector to release. This is easily done with the pointed end of the spudger. Once the two corner latches are released, the connector comes apart easily.
Fred Heineman - Reply