MacBook Core Duo PRAM Battery Replacement
Inleiding
Ga naar stap 1The time and date, as well as other settings, are kept by the PRAM battery when your machine is off. If you feel like you're stuck in the movie Groundhog Day, replace the PRAM battery and finally turn the page of your calendar.
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Use a coin or spudger to rotate the battery-locking screw 90 degrees clockwise.
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Remove 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 case.
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Two 14.5 mm Phillips #00.
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Starting near the display and working around to the front of the computer, pry up on the upper case. It is held with clips on the right above the optical drive. These will release with some firm lifting pressure.
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Be careful when prying up the upper case. It's very easy to slice open a fingertip and thus provide the blood sacrifice the Mac gods sometimes require of those who insist on doing their own repairs.
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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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Unfortunately not all A1181s use the replaceable battery - some use a Super-Cap. Certainly mine did, after spending 1/2 hour opening it up and flipper the case over I find no replaceable battery, rather a small device labeled “V C2800” almost under J4501 (HDD). Mine charges up to 2.8V with the AC power adapter hooked up, but quickly discharges to 0.9VDC once power is removed. I shall see if the SuperCap at Digi-Key works better…https://www.digikey.ca/product-detail/en...
Here is discussion on the SuperCap version: Is there no CMOS RAM battery on this model?
mine not use the replaceable battery either