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소개
The time and date, as well as other settings, are kept by the PRAM battery when your machine is off. The PRAM battery on early 2009 MacBooks is non-replaceable.
필요한 것
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Unscrew the three evenly-spaced Phillips screws from along the rear wall of the battery compartment.
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Remove the following 3 screws:
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One 11 mm Phillips#00 in the middle of the lower case. (Head: 5mm dia. x .75mm thick)
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Two 14.5 mm Phillips #00 (Head: 5mm dia. x .75mm thick)
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Disconnect the MagSafe board cable from the logic board by pulling the snap-in connector out (to the right).
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Turn the logic board over.
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Peel the PRAM battery up from its location on the logic board, removing tape as necessary.
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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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