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Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor

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  1. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Display: passo 1, imagem 1 %32
    Ferramenta utilizada nesse passo:
    iMac Intel 27" Cardboard Service Wedge
    $4.99
    Comprar
    • 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.

    • If you are using the iFixit cardboard service wedge, follow these assembly directions to put it together.

  2. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 2, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 2, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 2, imagem 3 %32
    • 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.

    • The hub on the iMac Opening Tool will keep you from pushing the wheel in too far. If using a different tool, insert no more than 3/8" (9.5 mm) into the display. You risk severing antenna cables and causing serious damage.

  3. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 3, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 3, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 3, imagem 3 %32
    • Use the tool like a pizza cutter—roll it along through the gap, and it will cut the foam adhesive through the center.

    • Be sure to always push with the handle behind the cutting wheel. If you pull, the wheel might get pulled out of the handle.

    • Run the tool up along the left side of the display.

  4. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 4, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 4, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 4, imagem 3 %32
    • Continue wheeling the tool up around the top left corner.

  5. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 5, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 5, imagem 2 %32
    • Cut the adhesive along the top left of the display.

  6. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 6, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 6, imagem 2 %32
    • Continue along the top of the display.

    • You may want to run the tool back and forth through what you've already cut a few times, to ensure you get as much of the adhesive separated as possible.

  7. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 7, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 7, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 7, imagem 3 %32
    • Push the tool around the top right corner of the display.

  8. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 8, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 8, imagem 2 %32
    • Wheel the tool down along the right side of the display.

  9. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 9, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 9, imagem 2 %32
    • Finish pushing the opening tool to the bottom of the right side of the display.

    • At this point, you'll want to run the tool back around the entire display, to ensure you cut as much adhesive as possible.

  10. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 10, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 10, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 10, imagem 3 %32
    Ferramenta utilizada nesse passo:
    Plastic Cards
    $2.99
    Comprar
    • While the opening tool did the lion's share of the work, the display will still be slightly adhered to the case. A plastic card will be necessary to free up the last of this adhesive.

    • Set the iMac face-up on a table.

    • Starting from the top right corner of the iMac, insert a plastic card between the display and frame.

    • Be careful not to insert it more than 3/8" (9.5 mm), or you may damage internal components.

  11. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 11, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 11, imagem 2 %32
    • Gently twist the plastic card to open the space between the display and frame, and cut any remaining adhesive near the corner.

    • Using too much force will crack the glass. Work carefully, and don't try to create a gap any larger than about 1/4" (6 mm).

  12. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 12, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 12, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 12, imagem 3 %32
    • Be sure to stop cutting before the iSight camera in this step, or you may damage it.

    • Slide the card toward the center of the display, to cut any remaining adhesive.

  13. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 13, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 13, imagem 2 %32
    • Put the card into the corner again and let it stay there to keep the adhesive from resettling.

  14. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 14, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 14, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 14, imagem 3 %32
    • Insert a second card into the gap between the display and frame in the top left corner.

  15. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 15, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 15, imagem 2 %32
    • Gently twist the card, slightly increasing the space between the display and frame.

    • As with the other side, move slowly to allow the adhesive to break, and be careful not to over-stress the display glass.

  16. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 16, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 16, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 16, imagem 3 %32
    • Slide the plastic card toward the center, again stopping just before the iSight camera.

  17. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 17, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 17, imagem 2 %32
    • Insert the card back into the top left corner.

  18. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 18, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 18, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 18, imagem 3 %32
    • Only lift the display a few inches—it is still attached to the iMac by data and power cables.

    • With the cards inserted as shown near the corners, gently twist the cards to increase the gap between display and case.

    • 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.

    • Begin to lift the top of the display up from the frame.

  19. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 19, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 19, imagem 2 %32
    • While holding the display up with one hand, use the other to unplug the display power cable.

    • Lift the display up enough to have easy access to the connections, but not so much that you stretch the cables and stress their connections (about 8").

  20. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 20, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 20, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 20, imagem 3 %32
    • Flip up the metal retaining bracket on the display data cable.

    • Disconnect the display data cable.

    • This is a delicate connection that can easily be broken. Be sure to pull the display data cable connector straight out of its socket, toward the top of the iMac.

  21. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 21, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 21, imagem 2 %32
    • Lift the display up to a near-vertical position.

    • At this point there is still a strip of adhesive along the bottom of the display, that will hold the display to the frame like a hinge. You can loosen this adhesive by working the display up and down a few times.

    • Remove as much of the adhesive as possible by grabbing it at the outer edges, and then pulling or rolling it towards the middle.

  22. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 22, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 22, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 22, imagem 3 %32
    • Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply (boxed in red).

    • If necessary, a plastic card can be used to cut any remaining sections of the bottom adhesive strip.

  23. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 23, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 23, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 23, imagem 3 %32
    • Be very careful handling the display—it's big, heavy, and made of glass. The display has fragile edges. Avoid lifting the display by the corners.

    • Lift the display up from the frame and remove it from the iMac. Lay the display face down on a flat, soft surface.

    • It may be necessary to slowly lift from one side, to peel against the remaining adhesive.

    • After the adhesive is cut, it cannot be used to re-seal the display in place. Follow this guide when your repair is complete to replace the adhesive strips that secure the display to the rear enclosure.

  24. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor: passo 24, imagem 1 %32
    • If you are replacing the display panel, you may need to transfer additional components from the old panel to the new one. Compare the back of the old display with the replacement display. Note all cables, sensors, and foam cushioning that are missing from the new display.

    • If there is a wire or cable underneath adhesive tape, always pull the tape off first.

    • If the cable is glued to the chassis, use a heated iOpener or a hair dryer to soften the adhesive first. You can then slide an opening pick underneath the cable to loosen it. Never pull directly on the delicate connectors.

    • Slide an opening pick underneath the foam cushion pieces to separate them from the display, and gently pull them off. You may need some double sided tape to re-attach them to the new display.

  25. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Disassembly: passo 25, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Disassembly: passo 25, imagem 2 %32
    • Follow along with the official iFixit teardown to remove all internal parts from the iMac.

    • I also pulled out the port for the AC power cord using vice grips. I ran my cables through the resulting hole, but you could alternatively use the ram door hole.

    • Remove the old adhesive the held the display to the aluminum case. This will make assembly later much easier.

  26. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Get controller board kit: passo 26, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Get controller board kit: passo 26, imagem 2 %32
    • Find the panel identifier on the back of the screen. Mine is LM270WQ1(SD)(F2).

    • Search for a controller board kit for your exact display model, probably on AliExpress. Here is the one I used.

    • Get an AC adapter to match your board. The specs for my board said "Power adapter input: 12V, 4A-5A" so I found one on Amazon.

    • Wait 2-3 weeks for your board to ship from China...

    • In the meantime, get supplies for the rest of the process: a spudger, painter's tape, electrical tape, needlenose pliers, adhesive PCB standoffs, and an HDMI cable.

  27. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Connect controller to display: passo 27, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Connect controller to display: passo 27, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Connect controller to display: passo 27, imagem 3 %32
    • Use a spudger to lift the little bar securing the ribbon cable at the top of the display.

    • Replace the ribbon cable with the one connected to the controller board.

    • My controller board is actually two boards, which I connected with the included 6-pin cable.

  28. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Connect controller to backlight: passo 28, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Connect controller to backlight: passo 28, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Connect controller to backlight: passo 28, imagem 3 %32
    • For the backlight, a 4-pin cable went to the board.

    • On the other end, the controller cable had 8 pins for 6 sockets present on the built-in backlight cable. I pulled out the extra pins (1 on each side) using needlenose pliers. I could see only the middle 6 slots on the header were being used.

  29. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Make final connections and test: passo 29, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Make final connections and test: passo 29, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Make final connections and test: passo 29, imagem 3 %32
    • Connect the 6-pin cable from the controller (modified from 8 pins) to the 6-socket backlight cable that was already attached to the display.

    • Plug in your AC adapter and confirm the board is getting power.

    • Connect a computer via HDMI to see if there's a picture. If you have picture but no backlight, you may have to reverse the 6-pin backlight connection.

  30. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Mount controller hardware inside iMac: passo 30, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Mount controller hardware inside iMac: passo 30, imagem 2 %32
    • Disconnect some or all of the controller board so you can move the board around the iMac case without the heavy glass display getting in your way.

    • Arrange the controller board in the iMac case so that the external connections (HDMI, power) could be accessed from the RAM door and/or power cord hole. I put it somewhere else in my first attempt and regretted it after something went wrong later.

    • Make sure all your cables can reach where their final destination with some slack before you attach the controller board to the case. Also ensure any cables that attach to the board perpendicularly have enough room to turn after the display is attached to the case. I ended up using a slightly awkward arrangement on top of the vents.

    • After you're happy with the arrangement, attach the board with something like these adhesive stand-offs.

    • If your board has a secondary board too, attach that in the same way, making sure all cables can reach their destination. Secure wires with electrical tape.

  31. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Test display inside the case: passo 31, imagem 1 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Test display inside the case: passo 31, imagem 2 %32 Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Test display inside the case: passo 31, imagem 3 %32
    • Plug in the HDMI and power.

    • Thread the controller board outside the back of the case so you can use it when the case is sealed.

    • Carefully rest the display on the bottom lip of the iMac case, then re-connect the rest of the cables so you can re-test the whole system. This is easier with 4 hands.

  32. Convert an iMac Intel 27" EMC 2639 into an HDMI Monitor, Reattach display to the case: passo 32, imagem 1 %32
    • If everything's working when assembled, reattach the display by following the iMac Intel 27" Retina 5K Display Adhesive Strip Replacement guide.

    • Using the adhesive standoffs, attach the board with buttons on it to the back of the iMac case so you can use it when necessary.

    • Power it up do computing.

    • If you want to mount your old/new monitor there are VESA mounting solutions like this one available.

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David

Membro desde: 10/18/12

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