Mac mini (PowerPC) PRAM Battery Replacement

はじめに

The time and date, as well as other settings, are kept by the PRAM battery when your machine is off. Replacement battery is a CR2032 3v lithium button cell.

必要な工具と部品

手順1 Top Housing

Mac mini (PowerPC) PRAM Battery Replacement, Top Housing: 手順 1、 2の画像 1

Mac mini (PowerPC) PRAM Battery Replacement, Top Housing: 手順 1、 2の画像 2

Power down your Mac mini, disconnect all of the cables, and flip it over.
Insert the Jimmy into the crack between the aluminum top housing and the plastic lower housing.
The Jimmy should reach a stop about 3/8" down.

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手順2

Mac mini (PowerPC) PRAM Battery Replacement: 手順 2、 3の画像 3

Gently bend the Jimmy outwards to pry the crack open a little larger and lift the lower housing up a small amount.
There are several plastic clips on the lower housing that fit into a channel in the aluminum top housing. Your goal is to use the Jimmy to push these clips inward enough to free them from the channel, while gently pulling up on the lower housing.

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手順3

Once you have the first side free, rotate the Mac mini and start prying up on the front edge.
Use the same prying motion to both bend the clips inward and lift the lower housing up out of the top housing.

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手順4

You may need to move the Jimmy along the edge to pry up all of the clips. Be patient and do a little bit at a time.

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手順5

Keep working around the perimeter, freeing the clips along the final edge.

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手順6

Flip the Mac mini back over and lift the top housing off of the lower housing.

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手順7 Mass Storage Unit

Mac mini (PowerPC) PRAM Battery Replacement, Mass Storage Unit: 手順 7、 1の画像 1

If your mini does not have Airport installed, then skip this step.
Grasp the Airport antenna board and lift it off of the two plastic posts holding it in place. You may need to push back the black plastic tab jutting through the lower left corner of the board.

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手順8

Remove the yellow tape securing the power button cable to the black plastic framework.

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手順9

Remove the three black Phillips screws securing the plastic framework to the logic board and lower case.

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手順10

Grasp the optical drive and mass storage unit in one hand and lift up enough so that you can see beneath it.

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手順11

If your mini has neither an Airport card nor a Bluetooth board, you can simply lift the optical drive up and away. Otherwise, you need to disconnect the Airport and/or Bluetooth antenna cables first.
With your free hand, pull the Bluetooth cable up from Bluetooth board and unplug the Airport antenna cable from the right of the Airport card. Caution: both of these connections are very small. When re-assembling unit after repair, you may want to remove the two screws holding the airport card to the assembly and lift the card up and out to re-attach the cables.

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手順12 PRAM Battery

Mac mini (PowerPC) PRAM Battery Replacement, PRAM Battery: 手順 12、 1の画像 1

Push the PRAM battery in and pull it up. You'll have to push the battery in further than you'd expect in order to get it to pop free.
When inserting the new battery, make sure the side with writing along the edges faces the black plastic holder. You should also insure that the metal connectors make contact with the battery (you can bend them forward if they do not).

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