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Use this guide to replace a dead PRAM battery.
Neye ihtiyacın var
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Loosen the two Phillips screws securing the access door to your iMac.
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Remove the access door.
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To lift the front bezel off the iMac, simultaneously:
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Use your thumbs to press in the RAM arms and hold the iMac down.
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Use your index fingers to pull the small bridge of material on the front bezel toward yourself.
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Pull the front bezel up with your index fingers.
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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.
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Disconnect the microphone cable.
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Disconnect the camera cable by pulling its connector away from the socket on the camera board.
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.
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. :)
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Use the tip of a spudger to pry the PRAM battery out of its socket on the logic board.
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Remove the PRAM battery.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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Bir Yorum
what should i do if the mac cant switch on or no light afther changing the pram battery?