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Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428

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  1. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Puerta de acceso: paso 1, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Puerta de acceso: paso 1, imagen 2 de 2
    • Desenchufa el cable CA de tu iMac junto con cualquier otro dispositivo periférico.

    • Coloca su iMac boca abajo sobre una superficie suave y limpia como se muestra.

    • Asegúrate de que no haya suciedad o residuos en su superficie de trabajo, ya que puede rayar el panel de vidrio en la parte frontal de su iMac. Recomendamos colocar una toalla entre el iMac y la superficie de trabajo.

    • Afloja los tres tornillos Phillips que sujetan la puerta de acceso al borde inferior de su iMac.

    • Los tres tornillos permanecerán cautivos en la puerta de acceso.

    • Retira la puerta de acceso.

    Before beginning unplug your iMac.

    Henry Barnett - Contestar

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

    John McWilliams - Contestar

    Yes phillips #2 is the correct Bit

    Heath - Contestar

    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 - Contestar

  2. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, RAM: paso 2, imagen 1 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, RAM: paso 2, imagen 2 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, RAM: paso 2, imagen 3 de 3
    • Desliza suavemente la lengüeta extraíble de plástico negro de la RAM hacia afuera de la ranura de RAM.

    • Tira de la lengüeta de plástico negro del borde inferior del iMac para expulsar los módulos en ese lado del compartimiento de RAM.

    • Esto puede requerir un poco de fuerza.

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

  3. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 3, imagen 1 de 1
    • Desliza el (los) módulo (s) RAM anterior (s) de sus ranuras en la bahía de RAM y déjalos a un lado.

    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 - Contestar

  4. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 4, imagen 1 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 4, imagen 2 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 4, imagen 3 de 3
    • Repite el proceso en los pasos anteriores para eliminar los módulos de RAM del otro lado de la bahía de RAM.

  5. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 5, imagen 1 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 5, imagen 2 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 5, imagen 3 de 3
    • Al instalar nuevos módulos de RAM, es importante orientarlos correctamente.

    • Asegúrate de que la pequeña muesca cortada en cada módulo de RAM (que se muestra en la primera imagen) coincida con la protuberancia en cada ranura de RAM (que se muestra en la segunda imagen).

    • Tu iMac tiene cuatro ranuras de memoria RAM. Asegúrate de deslizar cada módulo de RAM en su ranura horizontalmente. Esto evitará que los módulos queden atrapados entre dos de las ranuras adyacentes.

    • Una vez que haya orientado los nuevos módulos de RAM correctamente, deslízalos suavemente por completo en el iMac y usa tus pulgares para asentarlos firmemente en sus zócalos.

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

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

    Butt Muffins - Contestar

    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 - Contestar

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

    Jesse Fenton - Contestar

    Why do we need the spudger?

    Ross - Contestar

  6. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Panel de Vidrio: paso 6, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Panel de Vidrio: paso 6, imagen 2 de 2
    • Antes de empezar, desconecte su iMac y recuestela sobre una superficie suave.

    • Adhiera una ventosa en los 2 angulos superiores del panel de vidrio.

    • Para pegar las ventosas primero posicione sus manijas paralelas al borde del panel de vidrio. Presione suavemente las ventosas contra el vidrio y gire las manijas de vacio hacia el panel de vidrio.

    • Si sus ventosas no se pegan, limpie la superficie del vidrio y la goma de sus ventosas con un solvente liviano.

    • Insertar traducción aquí

    • Insertar traducción aquí

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

    kctipton - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

    Nails worked for me too

    Rob Dale - Contestar

    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 - Contestar

    I use Garmin GPS suction cup. Work very well

    jc3Dcx - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

    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 - Contestar

  7. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 7, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 7, imagen 2 de 2
    • Tire despacio el panel de vidrio perpendicular a la cara del LCD con cuidado ya que hay pestañas de metal en la parte inferior del panel de vidrio.

    • Remueva el panel de vidrio hacia arriba sacando cuidadosamente las pestañas de acero y coloque sobre una superficie limpia.

    • Durante la reinstalación, asegurese que la cara interior del panel de vidrio esta perfectamente limpia y que no haya quedado suciedad ni impresiones de dedos sobre el LCD ya que seria visibles al encender el iMac.

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

    Steve Speirs - Contestar

    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 - Contestar

    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 - Contestar

  8. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Pantalla: paso 8, imagen 1 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Pantalla: paso 8, imagen 2 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Pantalla: paso 8, imagen 3 de 3
    • Retira los ocho tornillos Torx T10 de 8 mm que sujetan la pantalla a la carcasa exterior.

    • Las dos últimas imágenes son tomas detalladas de cada lado de la pantalla.

    The metal near the screws is VERY magnetic. Honestly, the hardest and by far most frustrating step was trying to put these screws back in.

    seancourtney - Contestar

    I ran into the same problem - easily the most frustrating part of this process. To help deal with it, I took a drinking straw, cut it to be about 2 inches long, and used it as a chute to guide the screw to the hole. Dropping the screw down the straw, it'd still stick to the side due to the magnets, but using my screwdriver, it was easy to push the screw down to where it needed to go, and the straw kept the screw from being pulled out of place by the magnets.

    josh -

    +1 for the straw tip. Worked a treat!

    osienna - Contestar

    Hmm… yes, the magnets sucks - literally. But if you use a normal screwdriver or a bit, the screwdriver tip or the bit can be “loaded” by the magnets too. Just move the screwdriver (or bit) over one of the magnets and then “plug” the screw onto the screwdriver’s tip (or bit). It will be held by magnetic force. Just enough to move the screw vertically and very slowly into the whole.

    There are some special screwdriver on the market with “claws” to hold screws, but they are hard to find/to buy and expensive. I sometimes use superglue (a LITTLE) to temporary fasten the screw at the screwdrivers tip. This technique can be used with destroyed screw heads too to optimize adhesion.

    Udo - Contestar

    Les vis sont inévitablement aimantées

    Gui - Contestar

    Replacing these screws was like playing the most difficult game of “Operation” imaginable. I wish I’d seen the tip about using a straw before I started playing!

    Bret Mogilefsky - Contestar

  9. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 9, imagen 1 de 1
    • Levanta ligeramente el borde superior de la pantalla fuera de la carcasa exterior.

    • No lo levantes demasiado. Hay varios cables que unen la pantalla a la placa lógica. Si giras o tiras del ensamblaje de la pantalla con los cables conectados, dañará su iMac.

    You can use one hand to hold the edge up while reaching with the other hand to disconnect cables. You may want to have a prop handy (like a small book) or an extra person to hold the edge up while you disconnect cables.

    kctipton - Contestar

    Use the teardown guide for your iMac to familiarise yourself with the layout of everything before you dive in. I was able to get an idea of how much clearance there was once the display is unfixed from the frame, where the optical drive was relative to the base etc

    osienna - Contestar

    The harddisk can be removed WITHOUT the next steps. The opening angle of the partially lifted LCD display gives enough room to untighten the two Torx T9 screws of the hard disk bracket, to unplug the two SATA connectors and to carefully lift out the harddisk. There is absolutely no need to dismantle the whole thing.

    All you need is a screwdriver which fits into the room. I’ve used the “Pro Tech Toolkit” from iFixit. The screwdriver with Torx T9 bit fits perfectly.

    The other “tool” you need is either someone who holds the LCD plate or the inner leftover of a kitchenroll, a scrunched paper, a small towel or similar which has to be stuffed between the logic boards and the LCD plate to keep the LCD at its lifted place (careful! don’t unplug any of the cables).

    I’ve opened and changed the harddisks of those 21,5 iMacs a dozen times with the help of the “Pro Tech Toolkit” and a kitchen roll.

    Udo - Contestar

    If i want to replace the HD with a SSD, can i still skip the next steps? I think i can’t because i need to change the termal censor, but i would like an other opinion please.

    Danois -

    “Kitchen Roll” - paper towel core.

    kyoder11 -

    You can absolutely replace the drive without removing any cables. It's a little tight, you need your torx driver to be short enough to fit in the limited space. Be careful not to put any pressure on the cables (the one nearest the front is a good guide of how much space you have to play with). It's helpful to have another set of hands to hold it up while you remove the drive, but I just did it by holding the display up with one hand and it wasn't that hard to remove and replace the drive.

    I wouldn't install any thermal sensor, just use something like Macs Fan Control (free) to adjust the fans so they don't race out of control.

    maccentric -

    Hia,

    thx to IFIXIT and 20+ years of computer repair and building experience (all PC) there was no problem at all to remove a 500 Gb HDD from a mid 2011 iMac and replace it with an 500 Gb SSD Drive (with help from Comtec EDV, where i bought the upgrade kit).

    Skip the steps where people are advised to remove the display. Due to my experience it is def better to leave cables and plugs where they are. I lifted the display 12 cm and fixed this position w/ one pencil in each front corner of the case where the other end of the pencil sticked in ascrew hole of the display-frame. Very easy to operate afterwards! No probs w/ the screws of the hdd-frame.

    Some care-taking of static electricity is advised - wear a wrist cable. And don’t forget to press start button after having removed power chord. I had an Android Tablet on the right side, where i could watch these ifixit pages :-)

    thx to IFIXIT!

    w/ regards from cantbtroo from Berlin

    Hans- Peter - Contestar

    Thank you ifixit for the guide. Like so many others I jumped from step 4 to step 10 and left all the cables intact. Felt much safer doing so. Papertowel cores secured the LCD to higher position. There was enough room to remove the old HDD and replace it with a SSD drive.

    Cheers!

    Aapo Kaivosoja - Contestar

    I also was able to proceed with rest of instructions, after skillping steps 4-10, just have to be very gentle, i think it would help to have a second set of hands to hold screen above while other hands are uninstalling and installing hard drive, but i was able to do it on my own

    jacob d - Contestar

    If you have trouble lifting the LCD or accessing the connectors, check if you have removed the right screws. There are a lot of identical Torx screws that are accessible without removing the LCD that have nothing to do with the screen, I learnt that by nearly breaking mine xD

    Luther - Contestar

  10. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 10, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 10, imagen 2 de 2
    • Extrae el conector del cable de sincronización vertical de su zócalo en la placa del controlador de LED cerca de la esquina superior izquierda de su iMac.

    Tried doing this on my iMac, but this cable would not come out for love or money. No matter what I did, I could not unplug this cable. My iMac is the same 21inch 2011 as this one. Any advice would be greatly appreciated.

    louis.barr - Contestar

    use a little poker type thing in your right hand to push on the 2 holes that are on top of the plug and wiggle it out with your other hand,

    Nicholas - Contestar

    I was tempted to forgo steps 4-10 but found the inside of the case to be very dusty and decided to do the full disassemble. I struggled getting this vertical sync cable connector out. The trick that worked for me was to prop the display up using a pair of toilet paper tubes then using the fingernails of both thumbs, one on each side of the connector and it came out easily.

    Anthony Zimmerman - Contestar

    Great idea of using toilet paper tubes to prop up the LCD! Thanks.

    jim - Contestar

  11. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 11, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 11, imagen 2 de 2
    • Gira la pantalla fuera de la carcasa exterior lo suficiente como para desconectar el cable de alimentación de la luz de fondo del LED de la placa del controlador del LED.

    • Desconecta el cable de alimentación de la retroiluminación LED presionando el mecanismo de bloqueo mientras separas el conector de su zócalo (hacia el borde inferior del iMac).

    Slip a thumbnail under the “front” (toward the top of the iMac) of the connector to release its clamp from the retaining ridge. Then push toward the “back” (bottom of iMac).

    Anthony Zimmerman - Contestar

  12. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 12, imagen 1 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 12, imagen 2 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 12, imagen 3 de 3
    • Agarra la lengüeta de plástico que está asegurada al bloqueo del cable de datos de la pantalla y gírala hacia arriba.

    • Extrae el cable de datos de la pantalla de su zócalo en la placa lógica.

    • No levantes el cable de datos de la pantalla, ya que su zócalo es muy frágil. Tira del cable paralelo a la cara de la placa lógica.

    I am having a difficult time reattaching the LCD cable. A better description or any tips would be useful here.

    Ben Bauermeister - Contestar

    Me too — ditto that.

    Roger Buttermore -

    https://eshop.macsales.com/item/OWC/DIDI... —> abt. 5:30 into the vid. Handle up to slide in, then flip it down to lock the connector in place.

    Roger Buttermore -

    The connector needs to be carefully pushed in parallel to the board with a surprising amount of pressure and the pull tab must be folded back. Not super fragile, but not strong either.

    Isaac Vande Zande - Contestar

    I really wish that the fagility of this connector was mentioned in Step 10 or 11.. When i rotated the screen on step 11.. It pulled this connector out and now I can't get it back in.. I hate computers.. HA!

    Philip Nelson - Contestar

    This is the most painful part of the whole event. Replacing this cable took me around 30 minutes !

    K. Efe Egilmez - Contestar

    I have tried and tried to get this cable back in. How do I know if I have messed it up?

    Christopher Teer - Contestar

    Mine seems to be…upside down? Looks like the little flappy lock thing is on the bottom as opposed to it being in top as pictured?

    jinnifer douglass - Contestar

    I agree with everybody that this is the critical step in this fix. Removing it is not that difficult, the description is quite accurate, but I would highlight that the “rotate” part of the step could be detailed: the black plastic tab is attached to the metal lock (golden colored) , which should rotate into the direction of the cable almost 180 degrees to unlock the connector. After doing this you can pull the cable out of the connector, PARALLEL to the board and away from the connector. It travels a very short distance to disconnect. After going through the rest of the steps to remove the display, take some time to examine closely the connector and understand what you have to do to reconnect it on assembly. It helps to fully visualize beforehand, since on reassembly it is difficult to see properly.

    Fernando Walker - Contestar

    Magnifying glasses are needed for this step. Carefully study the cable and how it attaches to the connector. Take a few pictures to help. This is the most difficult step.

    Norman Staples - Contestar

  13. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 13, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 13, imagen 2 de 2
    • Desconecta el conector del cable del sensor térmico LCD de su zócalo en la placa lógica.

    When putting the display down on the table, be careful not to kink the flat ribbon cable.

    frank - Contestar

    The replacement hard drive I used doesn't even appear to spin up and the Time Capsule restore process doesn't show it as available. It just stays at Searching for disks and never finds it.

    JRBv3 - Contestar

    I had to use Disk Utility to partition the drive and then it showed fine. Rookie mistake.

    JRBv3 -

    I managed to damage the LCD thermal sensor socket in the logic board. Now the connector won’t stay in place. I know the missing thermal sensor should cause the fans to spin up (they do spin up after a while), but the screen is blank.

    I connected an external monitor and it works fine, so it doesn’t seem to be a graphics or logic board issue. I also replaced the LED driver board with one from a working iMac, to no effect.

    Can the missing thermal sensor be causing this?

    Rodrigo da Rosa Cesconeto - Contestar

    Having the same problem. Black screen, works fine with external display.

    Passerby -

  14. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 14, imagen 1 de 1
    • Tira con cuidado de la pantalla hacia el borde superior de su iMac y sácala de la carcasa exterior, sin importar los cables que puedan quedar atrapados.

    Btw, I was pretty safe (& content) with two suction cups - i bought 3 for less than 7 Euros. They were a good help for a glass that hasn’t been removed since 2011. But i am sure fingernails will do a good job, too (of course not mine, cos i have short ones).

    At the end of the job it was even possoible to clean the fan that sucks cool air into the iMac (w/ a paintbrush and a controllable vaccuum cleaner). After that, it’s also a good opportunity to clean the air inlet that is part of the aluminium case (behind the stand - it’s always dusty).

    w/ regards from cantbtroo, Berlin

    Hans- Peter - Contestar

  15. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Disco Óptico: paso 15, imagen 1 de 1
    • A partir de aquí, la reparación será más fácil si le das la vuelta a la computadora para que la base quede frente a ti.

    • Retire los siguientes cuatro tornillos:

    • Un tornillo Torx T10 de 9,3 mm con cabeza grande

    • Tres tornillos Torx T10 de 9,3 mm con cabeza de tamaño normal

    In my case the red screw was on the lower left side near the power-data cable!

    sefw4t2efwef - Contestar

    Same here. There are different versions delivered

    Tai - Contestar

  16. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 16, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 16, imagen 2 de 2
    • Tira del conector del sensor térmico de la unidad óptica hacia arriba desde su zócalo en la placa lógica. Tira paralelo a la placa.

    No need to remove the thermal sensor connector from the motherboard - refer to Step 17 to remove the sensor from the optical drive instead

    osienna - Contestar

    The thermal sensor connector shown in the red box is the one for the hard drive, not the optical drive. The optical drive sensor attaches to motherboard near bottom left of optical drive fan.

    Reiner Friedel - Contestar

    The guide was correct in my case that this is the Optical Drive sensor. The board has “ODD Temp” written on it. Original HD has it’s own built in temperature sensor without a separate cable to the Motherboard, which is why OWC sells a special “In-line Thermal Sensor” SATA cable with a Temp. sensor that attaches to any new hard drive itself.

    amiller770 - Contestar

    When I was removing the optical drive cable sensor the connector came loose from the board. Is there any way to repair this?

    Paula McCaulla - Contestar

  17. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 17, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 17, imagen 2 de 2
    • Levanta el borde interior de la unidad óptica y maniobra su conector más allá del marco de la GPU conectado a la placa lógica.

    • Retira con cuidado la unidad óptica de sus clavijas de montaje en el lado derecho de la carcasa exterior para tener espacio para desconectar el cable de la unidad óptica.

    • Deja que la unidad óptica cuelgue mientras desvías el conector del sensor térmico de la unidad óptica de detrás del disipador de calor de la GPU.

    On the reassembly, I found threading the optical drive cable back under the GPU frame trying. Here’s some advice: Take some dental floss, form a loop, and feed that loop under the GPU frame. Put the cable into the loop of floss, tighten the loop, and pull the loop back through. This is much easier, faster, and far less frustrating.

    Albert Einsrein - Contestar

  18. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 18, imagen 1 de 1
    • Desconecta el cable de la unidad óptica tirando de su conector para sacarlo de la unidad óptica.

    • Retira la unidad óptica del iMac.

    I have already installed the second SSD drive, but due to the size of the drive I need to change it with another SSHD 1 TB drive. Am I right that I have to follow the instructions up to Step 18? Because The SSD is already behind the optical drive, so what I need to do is remove it and install the new SSHD drive and put everything back again. Please confirm.

    Mohamed Kamal - Contestar

    This was my only error on reassembly. The SATA cable must be under the black plastic prong. I did not want to pull to logic board again. I managed to bend the black plastic bits and get the cable in the right place.

    Terry Creasy - Contestar

  19. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Ventilador del Disco Óptico: paso 19, imagen 1 de 1
    • Retira el único tornillo Torx T10 de 13 mm que sujeta el ventilador de la unidad óptica a la carcasa exterior.

  20. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 20, imagen 1 de 1
    • Extrae el ventilador de la unidad óptica de las clavijas unidas a la carcasa exterior.

  21. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 21, imagen 1 de 1
    • Extrae el conector del ventilador de la unidad óptica de su zócalo en la placa lógica.

    • Retira el ventilador de la unidad óptica del iMac.

    If you happen to forget to plug the fan in before you re-install the fan, instead of trying to plug it in while it's in there just take the fan back out...I've heard from a friend who did that... :-D

    LeBarron Durant - Contestar

  22. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Placa Lógica: paso 22, imagen 1 de 1
    • En los pasos siguientes, desconectarás los siguientes cables:

    • Tarjeta SD

    • Altavoz izquierdo/derecho y micrófono

    • Puerto de audio

    • antena wifi

    • Sensor de temperatura derecho, Bluetooth/sensor de luz ambiental/cámara/temperatura izquierda y ventilador del disco duro

    • Ventilador de CPU/temperatura ambiente y botón de encendido

    • sensor de infrarrojos

    The cable in the yellow box pulls out parallel to board. The connector looks as if it might be different, but grasp the black tabs and pull parallel to the board

    Alex Grayson - Contestar

    The power button cable is super easy to break, use a small tipped plyer, same goes for the right temperature sensor. I broke both on my imac 2011 20.5 model.

    Vardek Petrovic - Contestar

  23. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 23, imagen 1 de 1
    • Saca el cable de la placa SD de su zócalo en la placa lógica.

  24. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 24, imagen 1 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 24, imagen 2 de 3 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 24, imagen 3 de 3
    • Desconecta los cables del micrófono, altavoz izquierdo y altavoz derecho tirando de sus conectores hacia el lado derecho del iMac.

  25. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 25, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 25, imagen 2 de 2
    • Usa el extremo plano de un spudger para sacar los tres conectores de antena AirPort de sus enchufes en la placa AirPort.

    • Durante la reinstalación, conecta el cable sin rayas al enchufe marcado CH0, el cable con una raya a CH1 y el cable con dos rayas a CH2.

    Mine has these cables exactly opposite what is shown here. (?)

    Danno - Contestar

    same with mine

    andriivarko -

    Mine is:

    2 bands = CH0

    1 bands = CH1

    0 bands = CH2

    Model: AR5BXB112

    Victor - Contestar

    what does this cables mean?

    mine is:

    2 bands = CH0

    1 bands = CH1

    0 bands = CH2

    Johnny Macedo - Contestar

    Actually I have just unplugged the whole airport board from its socket (where it is written 12RNA on the photo), why bothering with a spudger? You only need to remove one small screw that its holding it in place (torx T6)

    Viktor - Contestar

    I think my cables were in the opposite order—but I put them in the instruction order and everything is working.

    Terry Creasy - Contestar

    All the 21,5” Mid 2011 that I had repaired (12) had all these cable in the inverse order. I suppose that is correct

    dariomella - Contestar

  26. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 26, imagen 1 de 1
    • Tira del conector del ventilador del disco duro hacia el borde superior del iMac para desconectarlo de su zócalo en la placa lógica.

  27. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 27, imagen 1 de 1
    • Usa tus uñas de los pulgares en ambos lados del conector Bluetooth/sensor de luz ambiental/cámara/temperatura izquierda para empujarlo hacia el borde superior del iMac y sacarlo de su zócalo en la placa lógica.

  28. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 28, imagen 1 de 1
    • Usa tus uñas de los pulgares para empujar el conector del sensor de temperatura derecho hacia el borde superior del iMac y sacarlo de su zócalo.

    I broke that cable and I would like to know where to buy the right temperature sensor cable. Thanks.

    Fernando - Contestar

  29. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 29, imagen 1 de 1
    • Tira del conector del sensor de temperatura ambiente/ventilador de la CPU hacia el borde inferior izquierdo de la iMac y sácalo de su zócalo en la placa lógica.

  30. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 30, imagen 1 de 1
    • Tira del conector del botón de encendido hacia la esquina inferior izquierda del iMac para desconectarlo de su zócalo en la placa lógica.

    Please be careful with this step on the power button. Mine disintegrated when I pulled it out and I had to put it back in the socket pieced together and tape it. Just be careful.

    LeBarron Durant - Contestar

  31. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 31, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 31, imagen 2 de 2
    • Usa tus pulgares para empujar el conector del sensor IR hacia el borde superior del iMac y sacarlo de su zócalo en la placa lógica.

    • Tira de la placa del sensor IR hacia arriba desde detrás de la cara frontal de la carcasa exterior.

    • Retira el sensor IR y déjalo a un lado.

    NOTE: Be aware that (especially refurbished iMac’s) may have adhesive that may increase difficulty removing sensor. Possible recommendation; Use your iFixit Jimmy Tool or spudger to assist you in reaching the adhesive strip.

    John Gonsalves - Contestar

    I tried using my thumbnails as shown to push the connector out of its socket, but the individual wires came out instead. Spudger didn’t help. I had to remove the connector after all 4 wires came loose. I don’t know if this is worth the trouble to fix.

    James Webber - Contestar

    had the same experience as James. Will not replace it and see what happens

    Cornel Barth - Contestar

  32. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 32, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 32, imagen 2 de 2
    • Tira del conector del cable del puerto de audio hacia el lado izquierdo del iMac para desconectarlo de la placa lógica.

    • No tires del cable hacia ti (lejos de la cara frontal de la placa lógica) mientras lo desconectas.

    • Despega el cable del puerto de audio de la parte frontal de la placa lógica y déjalo colgando como se muestra en la segunda imagen.

  33. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 33, imagen 1 de 1
    • Retira los siete tornillos siguientes:

    • Dos tornillos torx T10 de 7 mm

    • Un tornillo Torx T10 de 30 mm

    • Dos tornillos Torx T10 de 25 mm

    • Dos tornillos Torx T10 de 21 mm

    On reassembly:

    Be sure to route the BT/camera multicolor cable (step 27) and the temperature sensor cable (step 28) into the gap next to the logic board. The correct location is seen well in step 32, just above the person’s index finger.

    Robert - Contestar

    ALSO on reassembly, check between the board and metal post under the right-hand yellow dot in this picture. Be absolutely sure that the left speaker wire, the SD board cable or the right fan cable aren’t between the board and the post. I shorted out my left speaker by getting it caught in there. Easy fix, but if they’re bent just right they just seem to want to fall between the board and post. Make sure they’re outa’ there!

    Robert - Contestar

  34. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 34, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 34, imagen 2 de 2
    • Retira los siguientes cuatro tornillos:

    • Un tornillo de rosca gruesa T10 de 9,3 mm

    • Un tornillo de rosca gruesa T10 de 25 mm

    • Dos tornillos de rosca fina de 22 mm

    • Tira de las esquinas superior derecha e inferior izquierda de la fuente de alimentación alejándolas de la carcasa trasera para desalojar los postes de montaje unidos a las esquinas de la fuente de alimentación.

    SAFETY NOTE: Remember ANY high voltage power supply can cause SERIOUS INJURY and may still hold charge LONG AFTER the device has been unplugged, EVEN IF PROPERLY DISCHARGED!!!

    John Gonsalves - Contestar

    Amen. Having been jolted twice from 2 different spots on the power supply, I would recommend covering the power supply with a small microfiber cloth, handling it by the edges and keeping the cloth in place. Cheap insurance. It will also protect the power supply if it touches something conductive on the hard disc when you flip it over to remove the DC-out cable (next step).

    Robert - Contestar

    I did this dismantlte more than 20 times without removing the AC board. The main board still comes out, can be winkled out in the right direction, clearing the bottom of the AC. A lot safer than fiddling around with the AC board IMO.

    Jumme - Contestar

  35. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 35, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 35, imagen 2 de 2
    • Levanta con cuidado la fuente de alimentación para sacarla de la carcasa exterior y gírala para exponer el bloqueo del cable como se muestra, prestando atención a los cables de salida de CC y de entrada de CA que aún están conectados al iMac.

    • Desconecta el cable de salida de CC presionando el mecanismo de bloqueo del conector mientras retiras el conector de su enchufe en la fuente de alimentación.

    • Una vez que el mecanismo de bloqueo haya liberado el zócalo, extrae el conector de entrada de CC de la fuente de alimentación.

  36. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 36, imagen 1 de 1
    • Desconecta el cable de entrada de CA presionando el mecanismo de bloqueo mientras tiras del conector para sacarlo de su zócalo.

    • Retira la fuente de alimentación de la carcasa exterior.

  37. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 37, imagen 1 de 1
    • Retira la pared de plástico que está instalada directamente a la derecha de la placa del controlador LED.

  38. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 38, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 38, imagen 2 de 2
    • Separa ligeramente la placa lógica de la parte posterior de la carcasa exterior, luego levántala hacia arriba para despejar la cara frontal inferior de la carcasa exterior.

    At this point on reassembly, make sure the optical drive SATA cable is under the black plastic wall prong. The connector must be low to reach the optical drive.

    Terry Creasy - Contestar

    YES to Terry above. The optical drive cable actually pretty much floats loose when the connectors are pulled off. It needs to stay below the transverse wall which is right under the person’s right hand in the photo above.

    Additionally, it would help to take a picture here to remember where the cables all go. You will have some open sockets at the end and it’s a little confusing. There is a good diagram of their locations here: Screenshot #1 at ++https://drive.google.com/drive/folders... Thanks to Timothy in comment for step 41 for this link. Basically don’t get sockets for SSD and HDD confused!

    Robert - Contestar

  39. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 39, imagen 1 de 1
    • Desconecta el cable de temperatura de la pantalla LCD tirando de su conector hacia arriba y sacándolo de su zócalo en la placa lógica.

    But thats the CPU temp sensor, not LCD

    Sam - Contestar

  40. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 40, imagen 1 de 2 Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 40, imagen 2 de 2
    • Presiona el mecanismo de bloqueo y tira con cuidado del cable de entrada de CC para sacarlo de su zócalo en la parte posterior de la placa lógica.

    HI,

    I just replace the dead GPU Card on an Imac 21.5 Mid 2011,

    Got 2x2Gb 1333 sodim in the top of slot.

    When i finish the repair, the mac start normally but except the right memory slot ,When looking at the front of the Imac , (The top and bottom Right Slot memory ) (Dimm Ch B )

    I search on the net and found that i properly knocked the motherboard when I put it back in.

    I think the power Filter, behind the motherboard ,is what cause that.(Because when you fight to put back cable behind the motherboard)

    You need to mention that, next time.

    I’m not sure about that but I think the part C3230. (I do not disasembly it again to verify (It’s so Fragile)

    Can someone confirm that,( And what do i need to do to repair it.??

    Or Do someone have the same problem, (Right slot (Top & Bottom ) Not working.??

    Mr Desvaux

    Gilles Desvaux de Marigny - Contestar

  41. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 41, imagen 1 de 1
    • Con cuidado de no dañar el zócalo de la placa lógica, extrae con cuidado el cable de datos SATA del disco duro de su zócalo en la placa lógica.

    You forgot after this step to pull out the optical drive cable from the mlb, also make it very clear that its crucial to put those cables back in the right socket not to cause bigger damage to the logicboard.

    davis 12 - Contestar

    I searched all over the internet for photos or diagrams of the back side of the logic board to understand where to connect SATA 1 and 2 data cables. This is a pain to reopen and go back to where you can fix the SATA connection.

    James Webber - Contestar

    I located the schematic for the area. I hope this of use to someone https://drive.google.com/drive/folders/1...

    timothy handy - Contestar

    I'm replacing the HDD with an SSD - not sure if I should use the HDD SATA-0 channel or the SSD SATA-1 channel.

    Richard Holmes - Contestar

  42. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 42, imagen 1 de 1
    • Extrae el conector del cable de alimentación del disco duro de su zócalo en la placa lógica.

  43. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 43, imagen 1 de 1
    • Retira la placa lógica de la carcasa exterior y ten cuidado con los cables que puedan quedar atrapados.

    • Al reinstalar la placa lógica, conecta un cable Thunderbolt y un cable USB en el puerto USB más cercano a los puertos de auriculares/micrófono antes de apretar los tornillos de la placa lógica para garantizar una alineación adecuada.

  44. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Ventilador del Disco Duro: paso 44, imagen 1 de 1
    • Retira el único tornillo Torx T10 de 13 mm que sujeta el ventilador del disco duro a la carcasa exterior.

  45. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 45, imagen 1 de 1
    • Saca el ventilador del disco duro de la parte posterior de la carcasa exterior y retíralo del iMac.

    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 - Contestar

  46. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428, Entrada de Corriente Alterna: paso 46, imagen 1 de 1
    • Retira el trozo de cinta transparente que cubre el cuerpo de la entrada de CA.

  47. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 47, imagen 1 de 1
    • Despega las tres piezas de cinta de aluminio del cuerpo de la entrada de CA.

    • No es necesario quitar completamente la cinta del cuerpo del iMac.

  48. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 48, imagen 1 de 1
    • Retira los tres tornillos Torx T10 de 9,3 mm que sujetan la entrada de CA a la carcasa exterior.

  49. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 49, imagen 1 de 1
    • Sigue este paso si la pared de presión de tu disco duro todavía está instalada.

    • Tira de la pared de plástico instalada justo a la izquierda del disco duro para alejarla de la carcasa exterior.

    • Retira el trozo de cinta que sujeta los cables del sensor térmico y retira la pared de plástico del iMac.

  50. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 50, imagen 1 de 1
    • Utiliza una llave de tuercas de 5 mm para quitar el separador de 15,7 mm de largo que sujeta el bucle de conexión a tierra de la entrada de CA a la carcasa exterior.

  51. Reemplazo de la entrada de corriente alterna del iMac Intel 21.5" EMC 2428: paso 51, imagen 1 de 1
    • Desconecta la entrada de CA y los cables de tierra de sus retenedores en la carcasa exterior y retira el conjunto de entrada de CA del iMac.

Conclusión

Para volver a armar tu dispositivo, sigue estas instrucciones en orden inverso.

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素晴らしい!!!もっと教えてください。

haoyato - Contestar

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