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iMac Intel 21.5インチ EMC 2389 ロジックボードの交換

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  1. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, アクセスドア: 手順 1、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, アクセスドア: 手順 1、 2の画像 2
    • iMacのACコードを周辺機器と一緒に抜きます。

    • 画像のように、iMacを柔らかく清潔な場所に裏返して置きます。

    • iMacのフロントに搭載されているガラスパネルに傷がつかないように、作業台上には汚れや異物などがないか確認してください。iMacと作業台の間にタオルを敷くことをお勧めします。

    • iMacの下側端とアクセスドアを固定している3本のプラスネジを緩めます。

    • 3本のネジはすべてアクセスドアに固定されています。

    • アクセスドアを取り出します。

    Before beginning unplug your iMac.

    Henry Barnett - 返信

    The screws are not phillips #1 as implied above. My phillips#2 bit fit.

    John McWilliams - 返信

    Yes phillips #2 is the correct Bit

    Heath - 返信

    Whenever I go this “deep” into any computer that has a motherboard battery, like the CR2032 for this iMac, I’ll add a new battery to my workflow. I’m in the “neighborhood” anyway.

    The battery is in a spring-loaded compartment, which requires patience and persistence.

    I make sure to test the new battery before installation. (The “3-2-1 Rule” applies: 3 of something means 2, 2 means 1, and 1 means none - I keep spare batteries on hand.)

    When I took part in my dual-drive adventure, I also added a thorough dusting (outside/outdoors) - phew!

    Carrick - 返信

  2. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, RAM: 手順 2、 3の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, RAM: 手順 2、 3の画像 2 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, RAM: 手順 2、 3の画像 3
    • 黒いプラスチックのRAM用プルタブをRAMスロットからゆっくりとスライドします。

    • 黒いプラスチック製のタブをiMac下端の底から引き離して、RAMベイ側に搭載されているモジュールを取り出します。

    • 作業には若干力が必要です。

    It is far harder than I thought you have to pull REALLY hard and then there will be a little click and than you can gently pull out the RAM.

    Alison Newton - 返信

    Press really hard, to the point you think you’ll cut your thumb, you’ll hear a slight ‘click’. If it’s not properly installed, the iMac will ‘beep, beep, beep’ In protest upon booting…

    Brian -

    I found it best to make use of the factory ‘pull tabs’. Much much easier than trying to pull the ram out by hand. It may seem like a good idea but, don’t be tempted to use pliers.

    Brian -

    Just FYI you can install 32GB’s of RAM in this machine. I have been using it this way for over 2 years now.

    Heath - 返信

    Thanks for your Useful guide …. iMac Intel 21.5" EMC 2428 RAM Replacement was performed step by step on my Imac and every thing is perfect right now.

    Jaime Salazar - 返信

    I was able to remove one side of the ram, but the other side would not budge. I was afraid that I was going to rip the plastic tab out of the computer. Any suggestions?

    Paula McCaulla - 返信

    Do you know if 3 ram modules installed would work ? or if it should only be 1, 2 or 4 ?

    I currently have 2x2gb installed, but I only want to add 1x4gb to have 8gb in total.

    Thanks!

    Nikokow - 返信

    Only install 1, 2, or 4. And preferably with the same gb for each module.

    Snuf Box -

    is it completely manditory to take out the ram? why not just keep it in? for some guides for replacing other components you dont have to, but in some you do. why is this the case? does it have to do with not getting shocked because there is power stored in there or some other reason? i was just wondering tho...

    Collin Bradac - 返信

  3. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 3、 1の画像 1
    • RAMベイのスロットから古いRAMモジュールをスライドして取り出します。

    would this be a good time to increase the size of the RAM too? Would it be as simple as slipping the new RAM in when redoing the steps? Thanks

    timreespt - 返信

  4. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 4、 3の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 4、 3の画像 2 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 4、 3の画像 3
    • 前の手順を繰り返して、RAMベイの反対側からRAMモジュールを取り出します。

  5. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 5、 3の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 5、 3の画像 2 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 5、 3の画像 3
    • 新しいRAMモジュールを装着する際は、正しい方向に取り付けることが重要です。

    • 各RAMモジュールに切り込まれた小さなノッチ(1番目の画像で確認できます)がRAMスロットの突起と合わさります。(2番目の画像を参照ください)

    • お持ちのiMacに4つのRAMスロットがあります。各モジュールを差し込む際は、スロットに対して水平にスライドします。隣り合う二つのスロットの間でモジュールが詰まるのを防ぐことができます。

    • 正しい装着方向を確認できたら、RAMモジュールをゆっくりとiMacにスライドします。親指を使って、各ソケット上にしっかりと固定してください。

    When reinstalling RAM in this machine or any iMac with upgradable RAM slots push hard to get them to go in (Apple really did make this one harder than it needed to be). If you don't push hard it won't go in and your computer won't work. (trust me on this learned the hard way)

    Robert Wacker - 返信

    I am having trouble with bottom 2 slots. As I get beeping sounds when using them. When removed it boots properly. I tried & tried to push the 2 , 2GB ram modules into the bottom slots BUT all get is beeping. Guess I have to settle for 4GB Rather than 8 unless someone has a suggestion.

    Doug - 返信

    Try swapping the to the other slots & don’t forget to press really hard until you hear the ‘click’.

    Brian -

    Is there an expirience to settle 1600 MgH Ram instead 1333 MgH manual required?

    Mikhail B. Bryanskiy - 返信

    The Memory Maxxer RAM upgrade kit for the iMac 12,1 EMC 2428 suggests the machine can run 32 gb but Apple’s website says it can run a maximum of 16 gb.

    Are we sure 32 gb can run on this machine?

    Paul

    steedz - 返信

    Added 16GB for a total of 20GB, runs great, do make sure of the “click”, the beep is disturbing

    Butt Muffins - 返信

    2x2 GB 1333 MHz RAM were installed as delivered. I couldn’t manage to get those two out of their slots. I don’t want to damage anything. So, I put 2x8 GB RAM 1333 MHz RAM bars in the other two empty spare slots to have 20 GB RAM in total. The iMac runs fine with it. As described above, make sure to push RAM until they ‘click’ in completely.

    Matthias Brandl - 返信

    Why are we taking out the RAM modules just to put them back in on the next step ?

    Jesse Fenton - 返信

    Why do we need the spudger?

    Ross - 返信

  6. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, ガラスパネル: 手順 6、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, ガラスパネル: 手順 6、 2の画像 2
    この手順で使用する道具:
    Heavy-Duty Suction Cups (Pair)
    $14.95
    購入する
    • 作業を始める前に、iMacの電源を切り、画像のように本体を倒して、柔らかい表面上に載せてください。

    • ガラスパネルの上部コーナーの2箇所に吸盤カップを取り付けます。

    • iFixitが販売している吸盤カップを取り付けるには、まず吸盤カップの持ち手ハンドルをガラスパネルの表面に対して水平になるように上げてください。ガラスに吸盤カップを軽く装着して、もう一方のハンドルも平行になるように上げてください。

    • 吸盤カップがうまく装着しない場合は、ガラスパネルと吸盤カップを中性洗剤などで綺麗に拭き取ってください。

    Very easy to lift the glass out. Don't jerk too hard.

    kctipton - 返信

    Another comment on DATA & LCD Temp. Sensor cables: I had to remove the vertical sync, and the backlight cable, however, if you have an assistant or/can carefully rotate the screen clockwise/and then have it held up about 5" to 6" at a slight angle, you do not need to remove LCD data cable or LCD thermal cable, however - IMPORTANT: you must have a second pair of hands/or way to securely prop up the LCD. Also, don't rotate too much, since then you will pull out LCD data cable, and it renders the whole exercise moot, or can damage the cable or connector.

    MaximBorzov - 返信

    You don't need suction cups. The screen, held by magnets, can simply be pried off using a very thin blade such as a screw driver and fingers.

    Deepsurvival - 返信

    That's a bad idea. using a metal tool to pry off glass is likely to end with an expensive broken front glass.

    Suction cups are common. Find a couple and do it the safe way. I use some cheap ones that came with iPhone repair kit.

    max damage -

    No need for suction cups, I just stuck my nails (short like guys usually have) between the top part of the screen and body, and it came off easily. I've never done it before, so it seems to be very easy.

    Nikolas Lintulaakso - 返信

    Nails worked for me too

    Rob Dale - 返信

    Just completed the replacement of the optical drive with an SSD using an OWC Data Doubler kit. Attempted to remove the optical drive without disconnecting any cables but found it a bit fiddly to orient the screen for good access. I bit the bullet and disconnected them and found the process less daunting than I imagined. Reconnecting them was similarly straightforward if you're careful.

    Tip: you can skip the step for removing the optical drive thermal sensor connector from the motherboard. Still need to remove the sensor from the optical drive but you can leave that hanging and reattach it to the SSD later.

    osienna - 返信

    I use Garmin GPS suction cup. Work very well

    jc3Dcx - 返信

    I’ve just successfully installed a 1TB SSD in place of my optical drive thanks to the information here- thank you to everyone who has contributed!

    3 comments- the procedure described here seems to vary between HD replacement and dual HD/optical drive replacement. This can be confusing at times.

    Expect there to be minor differences between the layout described and what you find when you open up your iMac. There are also, surprisingly, differences between the HD enclosure description, and the article provided by ifixit.

    I was able to replace the DVD/HD enclosure single-handedly without fully removing the LCD, or deconnecting any of the cables (steps 5-11). It’s a bit cramped, and fiddly, but I was not happy removing any of the cables despite watching videos, etc., since they all seemed to involve applying more force than I was comfortable with. A more detailed description of how to release them might have helped, but even here, there may be minor variations even within the 2389 model.

    Good luck!

    ivan birks - 返信

    I did it several times with one suction cup at the end of a kitchen brush. Once with the blade of a swiss army knive, also ok. And i’m pretty sure it works with fingernails too

    Tai - 返信

    Fingernails are all you need to free the glass from its magnetic hold. If you don’t have them, slip something thin and plastic, like a spudger, at a top corner.

    Max Powers - 返信

    Minha dúvida é a seguinte: após o técnico trocar o HD do meu iMac de 21,5 polegadas, a câmera parou de funcionar. Seria por causa da troca do HD? Tem solução?

    Claudio - 返信

    Creio que o cabo da camera não foi plugado ou deu mau contato… ou até danificado.

    glecyo@gmail.com

    glecyo medeiros -

    I can’t get my glass to budge. I’m replacing a cracked one and now it’s about to shatter.

    jamboxmitchell - 返信

    I know that I'm replying really late but I advise to use clear tape over any cracks so the cracks don't get bigger

    Jace Holmes -

    Check for chips in the glass BEFORE you do this step. If there is a chip when you pull up with the suction cups you will wind up with a jagged mess. If you do have a chip I would advise covering the screen near the chip with clear tape of some kind before lifting out. Mine shattered right at the chip and the resulting glass dust cloud got all over. My solution was buying a new glass screen.

    BCam - 返信

  7. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 7、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 7、 2の画像 2
    • ゆっくりとガラスパネルをLCD表面に垂直になるように持ち上げて、スチール製のマウントピン

    • ガラスパネルをiMacの底側端から引き抜き、丁寧に脇に置いてください。

    • 再組み立ての際には、ガラスパネルの内側やLCD表面を綺麗に拭いてください。デバイスの電源を入れると、ほこりや指紋が内部に閉じ込められ、視界が遮られてしまうことがあります。

    What's the best product to clean the face of the LCD?

    Steve Speirs - 返信

    Microfiber Cloth

    Leonardo Fournier -

    Try your best not touch it in the first place

    Brian -

    Wearing Nitrile or regular surgical gloves helps prevent finger prints if you accidentally touch the glass.

    amiller770 - 返信

    I use a Swiffer duster from above at the last moment before I let the magnets grab the glass cover. This has worked so well the last dozen or so times I’ve replaced a glass cover since I never have access to a “clean room” and don’t wear a “bunny suit”.

    Also, more dust will shed from your skin if you’ve just taken a shower, so I like to finish these repairs in the morning before a shower.

    gatortpk - 返信

  8. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, ディスプレイ: 手順 8、 3の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, ディスプレイ: 手順 8、 3の画像 2 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, ディスプレイ: 手順 8、 3の画像 3
    • ディスプレイをアウターケースに固定している8mm T10トルクスネジを8本外します。

    • 2、3番目の画像をご覧いただくと、ディスプレイ両側の詳細が確認できます。

    Replacing the screws , especially the two uppermost ones , is awkward due to the magnets attracting the screws off the Torx driver

    Anoop Sahal - 返信

    I’ve done an HDD replacement on an A1174 (and I’m about to do this model), which is nightmarish, but by far the best solution I found was to use a bit of Blu Tack or the equivalent on the driver.

    Boris - 返信

    I’ve just replaced the screws by making a little tube from paper and wrapping it round each screw to keep it contained. A cut-down straw would be perfect for job.

    Guy Whittaker - 返信

    I second this but use a tube of cardboard instead, then its quite easy.

    jeank75 -

  9. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 9、 1の画像 1
    • アウターケースからディスプレイの上部端をわずかに持ち上げます。

    • 持ち上げすぎないでください。ロジックボードとディスプレイを繋いでいるケーブルが数本あります。

    After sliding the display slightly towards the top edge, enough for the bottom edge to clear the retainers, an alternative is to raise the bottom edge out. Then unplug the LED backlight power cable (this step + 2), unplug the LCD thermal sensor cable (this step + 4), unplug the display data cable (this step + 3), and the display may be rotated over the top edge while leaving the vertical sync cable attached (this step + 1).

    Jerry - 返信

  10. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 10、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 10、 2の画像 2
    • iMacの上部左側端付近のLEDドライバーボード上のソケットから、垂直の同期ケーブルコネクタを引き抜きます。

    Do not try to pull the plug off the circuit board as it's soldered. Pull the cable sideways out of the socket.

    Alex Campbell - 返信

    Skipped step 5-10. I used two 5-6" chopsticks to prop up the display, this gave me more than enough room to complete the rest of the steps. I only had to disconnect the 3 cables are directly connected to the hard drive. Replacing the Seagate hard drive with another Seagate hard drive eliminated any cable issues. Now I have 2TB SSDH

    jaime martinez - 返信

    I was also able to skip steps 5 thru 10, which meant no messing with any cables except for the two for the HD (steps 13+14). Used a credit card to start the removal of glass panel (step 2) - much easier than I imagined. After removing display screws (step 3) I simply had a friend hold up the display's bottom edge as far as the cables would allow (careful not to stress at connection to logic board) and this provided enough room to remove the HD bracket screws (step 11), detach the HD cables, and remove the HD. Was replacing a failed 1TB Seagate with a 3TB Seagate so no problems with compatibility when reattaching the HD cables and everything worked fine when I restored the OS and data to the new HD. No fan issues. I did take great care to not get fingerprints on the inside of the glass panel and to blow off any dust specks before reinstalling it. It was a bit tricky to get the new HD back in without letting the magnets get a hold of it, so thanks for the warning posted here about that!

    Chuckles McBunny - 返信

    On my mid 2010 Imac I found it was not necessary to disconnect any cables (except of course those attached to the drive). Simply angle the monitor away from the case to a safe distance without stressing any cables and secure with tape. With a stubby screw driver it was easy to access and remove the drive.

    Michael Husselbee - 返信

    Skipped steps 6-10; did step 5 so could lift top of display higher, then propped up. A photo of whole interior here would help (hard disk is top center). Used pliers holding T10 bit at right angle to unscrew hard disk holder. SSD installed loose (macOS and fan control app already loaded).

    David Menges - 返信

  11. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 11、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 11、 2の画像 2
    • LEDドライバーボードからLEDバックライトのパワーケーブルの接続が外れるように、アウターケースからディスプレイを回転させます。

    • ロック機構のソケットからコネクタを引き抜きながら( iMacの下側端に向けて)、ロック機構を押し込んで、LEDバックライトパワーケーブルの接続を外します。

    This is real tricky it is fragile and you have to pull it along the logic board.

    John - 返信

    First push down on the edge of the connector closest to bottom edge of the iMac. This unlatches the locking mechanism at the top edge of the connector. Then gently wiggle the connector away from its socket.

    Oshoma Momoh - 返信

  12. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 12、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 12、 2の画像 2
    • ディスプレイデーターケーブルのプラグにはワイヤのロックが付いています。プラスチックのタブを上向きに回転させて、プラグのロックを解除します。(プルタブ式ではありません)

    • ディスプレイのデータケーブルを、ロジックボードのソケットからまっすぐ引き抜きます。

    • ディスプレイデータケーブルのソケットは非常に脆いので、ケーブルを上向きに引き抜かないでください。ケーブルをロジックボードの表面と平行に引き抜きます。

    This cable is very short, I would remove it before any of the others. First time I did this, I didn't realize this and this cable just popped out of it's socket. Luckily, the board wasn't damaged.

    maccentric - 返信

    i damaged my (step7) cable, and my iMac screen won't work, how to fix this?

    Ersan Rasubala - 返信

    I did the same thing. The pins are VERY easy to bend. I replaced it with a new cable from this company.

    http://www.macpalace.com/922-9497-cable-...

    Waiting for it to arrive.

    Michael -

    I wish this step was listed as a warning before lifting the monitor and as the first cable to undo. I broke it as it popped up and out, had to trash my Mac and I am stuck with a new hard drive.

    Frank1701a - 返信

    I followed the directions to a T and everything worked going back together. That cable in step 7 is delicate so one must be very careful.

    dustynnelson -

    Same problem for me. I damaged this cable and am ordering one now.

    This is a tough step so I would also suggest removing this cable first.

    lyleberman - 返信

    Yes, damaged mine too. It is better to take it out of the LCD and install it carefully on the logic board, then install it to the LCD.

    asle -

    Ok finally got the cable and was able to successfully finish the project.

    That video cable is ROUGH to install.

    lyleberman - 返信

    The same thing happened for me. That cable was by far the shortest and a slight pull of the display up caused the connector to come free. Luckily it wasn't damaged by this. It was pretty unclear to me how that connector fit in as well. It slides in and out parallel to the surface of the mother board, up towards the top of the iMac to unplug and down towards the bottom to plug in. I agree, if I were to do this repair again that is the first interior cable I would disconnect. Maybe a closeup of the cable plugged in and unplugged to show exactly how it engages and disengages would be good as well.

    danieljseta - 返信

    It is fine to remove the cable from the logic board when when you remove the screen. But when when assembling back together I found it better to take the LVDS cable out of the LCD and install it carefully on the logic board. Then connect it to the top of the LCD. Also the connector to the LCD is much more solid and not so easy to bend.

    asle - 返信

    This is by far the best way round to do this as trying to refit the cable to the logic board is a complete nightmare.

    Russ -

    I agree with asle, manipulating the display end of the cable would be easier - at least it cannot be any harder then manipulating the motherboard end.

    Jerry -

    well I did all t these steps and now the iMac won't turn on at all. I guess the big cable is not connected to the board as it used to... Mac is out of warranty so it's going out the door. RIP

    Gilbert Palau - 返信

    this thing is super fragile. i had to order a new one. i'd recommend removing the other end at the top of the display.

    m Burm - 返信

    this part is not complicated if you understand at first how the lock works.. remove the lock is easy, reassemble the cable and connect it is very problematic because the space to work is very tiny, but if you are carefully, it should be not a problem . try to see some videos from youtube first!

    Cristian Pizarro - 返信

    This totally blows.. If you want to do this correctly and not destroy your computer over this step, - OWC’s video will show you EXACTLy what to do with the display cable ..

    https://www.youtube.com/watch?annotation...

    Luis Garcia - 返信

    Don’t raise the display more than 3-4 inches. Pull the tape off the back of the display and unhook the cable from the display, instead of trying to remove it from the motherboard. As soon as I raised the display, the cable snapped loose. Ordered a new cable from Amazon. Am waiting to see if works ok.

    john - 返信

    The worst thing about the whole tear-down procedure, was the display data ribbon cable in this step. As others have noted, It popped out of its socket on the mother board while disconnecting the lcd. I didn’t get a chance to see exactly how it connected on to the moboard . I damaged the dainty and minute ribbon end while trying to re-connect it to the wrong side of the receptacle. Duh! I feel so stupid. :(

    I had to order a new ribbon cable ($14) . Luckily, i was able to plug new ribbon into the fragile moboard connector adequately, and then the lcd end, during re-assembly. This re-assembly step is made for a very small person with extremely small hands and big eyes (like someone out of Gulliver’s travels).

    Dan Packard - 返信

    2010 iMac SSD kit from OWC. Their video does not adequately explain the difficulty of re-installing the display port ribbon cable into the logic board. The best procedure would be to follow asle (see prior comment 8/11/15). The problem is exasperated by the fact that the plug into the LCD is covered in tape.

    Devere - 返信

    Why is this not step 5? By the time I lifted display, the cable had already come out. I think it damaged it.

    Greg Cox - 返信

    Got VERY lucky with my SSD replacement. Just leaning the display back popped the cable off the logic board, and I had a very difficult time reinstalling the screen. It might be that the wire bail wasn’t secured in the first place, or the machine has been opened up prior to my obtaining it. I eventually used a parts box to rest the LCD high enough to reinstall the cable. Agree that this should be the first cable to be disconnected and last to be reconnected. Perhaps disconnecting it from the LCD should be considered as a first step?

    phantom - 返信

  13. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 13、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 13、 2の画像 2
    • LCDサーマルセンサケーブルのコネクタを、ロジックボードのソケットから接続を外します。

    • 作業完了後、ファンがフルスピードで回転している場合は、このLCDサーマルセンサケーブルのコネクタもしくは、ハードドライブのサーマルセンサケーブルを点検してください。

    Be very careful - this connector very difficult to disconnect, and you have a high risk of pulling the cable pins out of the connect. If you have disconnected the 3 other cables, you can have a helper rotate the screen out of the way while you remove the hard drive.

    Brian Tsai - 返信

    I found this connector impossible to remove

    Anoop Sahal - 返信

    I also found this extremely difficult to remove. Tiny cable with a death grip. I tried using two spudgers, my fingernails, and walking it out. In the end, I used two spudgers and pried it up, using leverage from the clip to the right.

    Also, i recommend setting the iMac upright for this. I rested the screen on my chest while I dual wielded my spudgers.

    Alex Grayson - 返信

    eer ist zerbrochen! hoffe krieg ihn dann trotzdem wieder rein

    Peter Pawlowicz - 返信

    This was connector was impossible to remove. Like a previous commenter, I did this with the machine upright and with the LCD Panel resting on my upper chest. Ultimately, the pins pulled out of the socket! Once they were out, it was relatively easy to remove the socket. I completed the drive replacement, (installed a 1 TB SSD) and then replaced the pins in the socket and reassembled the machine. One mental error I made was I couldn’t remember the correct orientation for the Black and White wires in the socket. In looking at the photos here on iFixIt, it looks like I reversed their orientation. However, the machine seems to be running fine. I installed macos High Sierra and migrated my data from my old HD and the machine has been running for two days now. I would hate to have to go back in and remove the socket and reverse the wire orientation. Anyone have advise on this?

    jmaher - 返信

    In followup to my previous post, I launched TechTool Pro 9.6.1 and ran the Sensors Test. All Sensors tests were passed. These included:

    LCD Proximity, LCD Thermal Compensation 2, LCD Proximity, Thermal Compensation. Machine seems to be running fine.

    jmaher -

  14. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 14、 1の画像 1
    • ディスプレイを iMacの上部端に向けて引き抜きます。それからケーブルが絡まっていないか確認しながら、アウターケースより持ち上げて取り出します。

  15. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, 光学ドライブ: 手順 15、 1の画像 1
    • 次の4本のネジを外します。

    • 9.3 mm T10 トルクス大ネジ(頭)ー1本

    • 9.3 mm T10トルクスネジー3本

    The 4 srews are equal

    hybanibienen - 返信

  16. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 16、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 16、 2の画像 2
    • 光学ドライブのサーマルセンサのコネクタを、ロジックボードのソケットから接続を外すため、 iMacの上部端に向けて引き抜きます。

    No need to do this! Just gently pull up the felt-pad sticky on top of the thermal sensor (looks like a tiny circuit board), then (again gently) peel the thermal sensor off the ODD. Leave it hanging while you remove the ODD and replace it with the SSD, then just put the thermal sensor covered by the protective felt-pad back onto the SSD enclosure.

    cdansmith1 - 返信

    I agree with cdansmith1, above.

    I had removed the sensor completely. Booted up and the fan was like a jet engine - 4200rpm! I opened up the mac again to check the LCD thermal sensor cable was connected properly (as warned in Step 8). It was.

    So, I simply used the spudger to peel off the felt sticky pad from and then the optical drive sensor too from the drive I'd taken out. Stuck the sensor onto the SSD using the same sticky pad, plugged it back into the original socket. Bingo. Booted up and everything was back to normal.

    Monkeyrebirth - 返信

  17. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 17、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 17、 2の画像 2
    • 光学ドライブの内部上端を持ち上げて、ロジックボードに付いているGPUフレームからコネクタを動かして外します。

    • 光学ドライブをアウターケース右側の取付けピンから慎重に引き抜き、光学ドライブケーブルの接続を外すためのスペースを作ります。

    • GPUヒートシンクの裏から光学ドライブサーマルセンサーコネクタを巻き戻すときは、光学ドライブを下側に引っ掛けてください。

    this part is complicated because the wire is very delicate. when you try to extract it passing through the others elements this wire trap it very easily on the other elements of the logic board

    Cristian Pizarro - 返信

  18. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 18、 1の画像 1
    • 光学ドライブからコネクタを引っ張り、光学ドライブケーブルの接続を外します。

    • iMacから光学ドライブを取り出します。

    • 2番目のハードドライブをインストールする際は、光学ドライブからサーマルセンサもエンクロージャーに移すのを忘れないでください。

  19. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, 光学ドライブファン: 手順 19、 1の画像 1
    • アウターケースから光学ドライブを固定している13 mm T10トルクスネジを1本外します。

    This is the one with a large head.

    hybanibienen - 返信

  20. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 20、 1の画像 1
    • アウターケースに留められたピンから光学ドライブファンを引っ張り、外します。  

  21. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 21、 1の画像 1
    • 光学ドライブファンのコネクタをロジックボードのソケットから引っ張ります。

    • iMacから光学ドライブファンを取り出します。

    If you need to clean it watch here how to easily open it: '''https://youtu.be/MWHcPpSL4O0'''

    jeank75 - 返信

  22. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換, ロジックボード: 手順 22、 1の画像 1
    • この作業では、次のケーブルの接続を外します。

    • SDボードとマイク

    • 左右のスピーカー

    • WiFiアンテナ

    • Bluetooth/環境光センサ/カメラ/左側温度センサ、ハードドライブ温度センサとハードドライブファン

    • CPIファン/環境温度と電源ボタン

    • IRセンサ

    Be careful, reinstalling the logic board, some of these cables stand under the card and you have to remove the card again to get them… :((

    pascal ESNAULT - 返信

  23. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 23、 1の画像 1
    • iMac本体の右側に向けてマイクケーブルのコネクタを引っ張り、ロジックボードから接続を外します。

  24. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 24、 1の画像 1
    • ロジックボード上のソケットからSDボードケーブルの接続を引き抜きます。

    When replacing it, copper points down.

    agigante - 返信

  25. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 25、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 25、 2の画像 2
    • iMacの右側に向けて左右スピーカーのコネクタを引き抜き、接続を外します。

  26. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 26、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 26、 2の画像 2
    • スパッジャーの平面側先端を使って、AirPortボード上のソケットからAirPortアンテナコネクタの接続を外します。

    • グレーのアンテナは左側のソケットに、黒色のアンテナは右側のソケットに装着されています。

    Be super careful here. I spudged the sockets completely off the airport card when I was pulling apart mine.

    Cary B - 返信

    I as well. These are delicate connectors...

    Brett Williams - 返信

  27. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 27、 1の画像 1
    • iMacの上部端側にハードドライブファンの接続を引き抜いて外します。

  28. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 28、 1の画像 1
    • ハードドライブの温度センサケーブルをソケットから引き抜き、ロジックボードから接続を外すには、iMacの上部端に向けて引っ張ります。

  29. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 29、 1の画像 1
    • 両側の親指を使って、Bluetooth /環境光センサ/カメラ/左側の温度コネクタの両側をiMacの上部端に向けて押し出し、ロジックボード上のソケットから外します。

  30. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 30、 3の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 30、 3の画像 2 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 30、 3の画像 3
    • CPUファン/環境温度センサのコネクタをiMac下側左の端に向けて引き抜き、ロジックボード上のソケットから外します。

    • 電源ボタンコネクタをiMac下側左のコーナーに向けて引き抜き、ロジックボード上のソケットから接続を外します。

  31. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 31、 1の画像 1
    • IRセンサケーブルを覆っているテープを剥がします。

  32. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 32、 1の画像 1
    • 親指を使ってIRセンサコネクタをソケットから押し出して、iMac上部端に向けて押し上げます。

  33. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 33、 1の画像 1
    • IRセンサボードをアウターケースのフロントフェースの裏から押し上げます。

    • IRセンサを取り出します。

  34. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 34、 1の画像 1
    • 次の7本のネジを外します。

    • 7 mm T10トルクスネジー2本

    • 30 mm T10トルクスネジー1本

    • 25 mm T10トルクスネジー2本

    • 21 mm T10トルクスネジー2本

    Don't forget the red one in the top corner!

    Rob Dale - 返信

  35. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 35、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 35、 2の画像 2
    • 電源装置の背面にあるはんだ接合部に触れないようにご注意ください。 コンデンサは危険なレベルの電気ショックを与えることがあります。

    • 9.3 mm T10 並目ネジー1本

    • 25 mm T10 並目ネジー1本

    • 22 mm 細目ネジー2本

    • 電源の角に付けられた固定用ポストを外すには、リアケースから電源の右側上部と左側下部のコーナーを引き抜きます。

    Make sure the system has been powered off for a while. The capacitors on the power supply can still hold a charge for roughly 15 mins and will electrocute you if not handled properly

    Dennis M - 返信

    No need to do this if you’re just going to pull out the logic board for GPU replacement.

    František Žiačik - 返信

    it's possible to change the HDD fan without completely removing either the main board or the power supply. After removing the 4 screws on the PS board, I only had to pull it outward a few mm to remove the plastic wall on the HDD side, which is the part which holds the heat sink (attached to the main board) in place, Once the wires were unplugged from the main board's edges, and the IR board detached from the case front, I was able (with some delicate wiggling) to tilt the board out at the top enough (without unplugging anything from the back side of the board!) to remove the fan. The only tricky bit was getting that one fan screw out, which I managed with a T10 bit fastened to a 1/4" open-end wrench with some masking tape. A little awkward, but it saved a whole lot of disassembly. Somebody probably makes a skinny little ratchet that takes 1/4 hex bits directly, which would have made it easy.

    Dan Gellert - 返信

  36. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 36、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 36、 2の画像 2
    • 電源をアウターケースから慎重に持ち上げて取り出し、画像のように回転させてケーブルロックを外します。DC-outケーブルとAC-inケーブルはまだiMacに接続されています。

    • コネクタを電源上のソケットから引き抜きながら、コネクタのロック機構を押し込んでDC-outケーブルを外します。

    • ロック機構がソケットから外れたら、DC-inコネクタを電源装置から引き抜きます。

  37. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 37、 1の画像 1
    • AC-Inケーブルのソケットからコネクタを引き抜きながらロック機構を押し込み、AC-Inケーブルの接続を外します。

    • アウターケースから電源を取り出します。

  38. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 38、 1の画像 1
    • LEDドライバーボードの右側に装着されているプラスチックのウォールを外します。

  39. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 39、 1の画像 1
    • ハードドライブの隣に装着されているプラスチックの圧力壁を取り出します。

    Last step needed. Once board is free and you can see the battery hidden in the back, very easy to remove. Great guide!

    chris - 返信

  40. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 40、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 40、 2の画像 2
    • ロジックボードを外側ケースの背面から少し引き離してから持ち上げ、外側ケースの前面下部を取り除きます。

    Stopped here, once the logic board was free, I could just simply get to the battery

    chris - 返信

    I noticed here that I had forgotten the top screw of step 34

    Rob Dale - 返信

  41. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 41、 1の画像 1
    • コネクタをロジックボードの前面から引き離して、オーディオポートケーブルを外します。

  42. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 42、 1の画像 1
    • ハードドライブSATAケーブルをロジックボードに固定しているテープが付いていれば、剥がしてください。

  43. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 43、 2の画像 1 iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 43、 2の画像 2
    • ロック機構を押し込み、DC-In ケーブルをロジックボードの背面にあるソケットから慎重に引き抜きます。

    didn't need to do this

    chris - 返信

    Step 44 Instruction is confusing. Why?

    Because you suddenly mention a "mini display port cable" and "a USB cable" that up until now have never been mentioned. I'm not trying to be horsey, truly I'm not, but if you mean "plug in THE mini display port cable and THE USB cable" then I can assume both of these have previously been removed, although in scrolling back over all steps before step 44, I see no mention of either. So I remain confused about this instruction. All the rest of the steps are wonderfully clear and amazing. Apple itself cannot have provided a more perfect instruction (nor would they!). Well I'll leave this comment, although in re-reading Instruction 44, I now understand that these two cables are to be plugged in on the FRAME of the iMAC, OUTSIDE, so as to make sure the logic board INSIDE ends up properly aligned when reinstalled. My initial bad. Thank you.

    James Lacey - 返信

  44. iMac Intel 21.5インチ EMC 2389 ロジックボードの交換: 手順 44、 1の画像 1
    • ロジックボードのソケットにダメージを与えないように注意しながら、ハードドライブのSATAデータケーブルをロジックボードのソケットから慎重に引き抜きます。

    • ケーブルが絡まないよう注意しながら、ロジックボードを取り外します。

    • ロジックボードを取り付ける際は、ロジックボードのネジを締める前に、ミニディスプレイポートケーブルとUSBケーブルを外側のUSBポートに差し込み、正しく揃えてください。

終わりに

デバイスを再組み立てするには、これらのインストラクションを逆の順番に従ってください。

38 の人々がこのガイドを完成させました。

以下の翻訳者の皆さんにお礼を申し上げます:

en jp

100%

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作成者

5人の作成者と共同で作成されました。

Andrew Bookholt

585,712 ポイント

619のガイドは作成済み

7 件のコメント

Can you recommend a supplier for a logic board

Jay - 返信

I reccomend one from here at iFixit, of course!

[deleted] -

Hi. I replaced the logic board and when I started to put it back together there was a half round cable that I have no clue where it goes. I really hope you can help me. Also the DVD drive was replaced cause it didn't work. It plays but it won't eject the DVD. It only ejects when it's tilted.

Lucy Rahiotis - 返信

Yuuuuuuuuuuuuuupiiiiiiiiiii :) great guide

John Grace - 返信

can we use logic board from imac 21.5 late 2012 to replace the one in imac 21.5 mid 2010? or even more put all internal thing from imac 21.5 late 2012 into imac 21.5 mid 2010 aluminium case?

Ball Raider - 返信

The 2011 board may be compatible with the 2010, but the 2012 was completely redesigned and won’t work.

sovereignwaters -

Thank you so much for this post! Especially picture # 23 - goofed here and missed the fact that we inserted the MIC cable into the ODD connector - they actually fit. Never did turn on it till we resolved this error. Your picture is the only we could find to determine our mistake. Many thanks !!

mon2 - 返信

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