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Having display backlight issues? Use this guide to replace a blown inverter board.

Loosen the two Phillips screws securing the access door to your iMac. Both screws remain captive within the access door.
  • Loosen the two Phillips screws securing the access door to your iMac.

  • Both screws remain captive within the access door.

  • Remove the access door.

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Remove the following screws along the lower edge of your iMac:
  • Remove the following screws along the lower edge of your iMac:

    • Three 6 mm T8 Torx screws

    • One 8 mm T8 Torx screw

My iMac had four 6mm T8 Torx screws (so not one 8mm screw)

floor - Yanıt

Lay your iMac stand-side down on a flat surface. To lift the front bezel off the iMac, simultaneously:
  • Lay your iMac stand-side down on a flat surface.

  • To lift the front bezel off the iMac, simultaneously:

    • Use your thumbs to press in the RAM arms and hold the iMac down.

    • Use your index fingers to pull the small bridge of material on the front bezel toward yourself.

    • Pull the front bezel up with your index fingers.

  • Once the small bridge of material has cleared the RAM arms, lift the front bezel by its lower edge just enough to clear the bottom edge of the rear case.

My iMac did not have the "small bridge of material" mentioned, however the bezel just lifted off easily.

maccentric - Yanıt

Lift the front bezel off the rear case and rotate it away from the bottom edge of the iMac, minding the camera and microphone cables still attached to its upper edge. The third picture shows the top front bezel brackets and their slots cut into the top edge of the iMac's rear case. Do not completely remove the front bezel, as it is still attached by the camera/microphone cables.
  • Lift the front bezel off the rear case and rotate it away from the bottom edge of the iMac, minding the camera and microphone cables still attached to its upper edge.

  • The third picture shows the top front bezel brackets and their slots cut into the top edge of the iMac's rear case.

  • Do not completely remove the front bezel, as it is still attached by the camera/microphone cables.

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If necessary, remove the strip of tape covering the microphone cable connector.
  • If necessary, remove the strip of tape covering the microphone cable connector.

  • The microphone connector is located near the inside of top edge of your iMac.

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Disconnect the microphone cable. Disconnect the camera cable by pulling its connector away from the socket on the camera board. The camera cable connector and socket are delicate and easily bent. Remove with caution.
  • Disconnect the microphone cable.

  • Disconnect the camera cable by pulling its connector away from the socket on the camera board.

  • The camera cable connector and socket are delicate and easily bent. Remove with caution.

I found it easier not to remove the cables connecting camera and microphone, but rather to lean the plastic frame agains a pile of books so that it could rest almost vertical avoiding the need to disconnect those two sensitive cables.

Stefano C - Yanıt

I agree that for a simple, quick battery change, don't risk damaging those delicate wires. Ignore Step 6 and instead of disconnecting the mic and camera wires, keep them in place and just have a friend hold the plastic frame up while you change the battery, or prop it up as mentioned by Stefano C above.

WT Kwok - Yanıt

Make sure you double check the new logic board for the presence of the GPU assembly before installing. I stupidly installed a new board without moving the GPU from the old one first. So i guess you can say this guide worked for me twice. :)

Trevor Kearsey - Yanıt

Peel the two highlighted EMI shield tabs off the frame of the LCD. Peel the two highlighted EMI shield tabs off the frame of the LCD.
  • Peel the two highlighted EMI shield tabs off the frame of the LCD.

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Mac RAM Kitleri
Mac'inizi hızlandırın. Hafızasını maksimuma çıkarın.
Mac RAM Kitleri
Mac'inize daha fazla bellek alın.
Remove the two T6 Torx screws securing the display data cable to the logic board.
  • Remove the two T6 Torx screws securing the display data cable to the logic board.

Wait, we need a T6 screwdriver as well?

I purchased the T8 and T10 from your site as per the parts list above and now am here with an opened iMac on the dining room table unable to continue :/

Stephen Alianiello - Yanıt

Pull the black plastic tab attached to the display data cable connector to disconnect it from the logic board.
  • Pull the black plastic tab attached to the display data cable connector to disconnect it from the logic board.

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Use your fingertips to pull both sides of the wide inverter cable connector out of its socket on the logic board. De-route the inverter cable from its location next to the CPU fan.
  • Use your fingertips to pull both sides of the wide inverter cable connector out of its socket on the logic board.

  • De-route the inverter cable from its location next to the CPU fan.

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Before attempting this step, we recommend laying your iMac stand-side down on a table to avoid the display falling down.
  • Before attempting this step, we recommend laying your iMac stand-side down on a table to avoid the display falling down.

  • Remove the eight T8 Torx screws securing the display assembly to the rear case.

  • It is helpful to use a thin magnetized screwdriver to remove these screws.

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Remove the display assembly from the iMac.
  • Remove the display assembly from the iMac.

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Remove the large piece of tape covering the inverter cable connector and any tape securing the cable to the inverter board.
  • Remove the large piece of tape covering the inverter cable connector and any tape securing the cable to the inverter board.

Might be worth noting that the white squares on the board are tape also; I didn’t realise this until I struggled with a later step, so you’ll need to carefully peel these pieces of white tape back before continuing.

Haravikk - Yanıt

Lift the inverter cable connector straight up from its socket on the inverter board.
  • Lift the inverter cable connector straight up from its socket on the inverter board.

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Remove the inverter cable from the LCD.
  • Remove the inverter cable from the LCD.

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Peel the strip of foam tape off the inverter board.
  • Peel the strip of foam tape off the inverter board.

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Remove the large piece of black tape covering the side of the inverter board.
  • Remove the large piece of black tape covering the side of the inverter board.

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Remove the two Phillips screws securing the inverter board to the back of the LCD.
  • Remove the two Phillips screws securing the inverter board to the back of the LCD.

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Carefully lift the black cover off the inverter board from the side closest to the edge of the LCD.
  • Carefully lift the black cover off the inverter board from the side closest to the edge of the LCD.

  • Disconnect the seven locking connectors from the side of the inverter board.

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Lift the inverter board off the LCD. When reinstalling the inverter board, be sure to push the board under the two tabs nearest the center of the LCD before lowering it down into place.
  • Lift the inverter board off the LCD.

  • When reinstalling the inverter board, be sure to push the board under the two tabs nearest the center of the LCD before lowering it down into place.

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Sonuç

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

Bir başkası bu kılavuzu tamamladı.

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