Introduction
The Macintosh IIsi Uses a 120/240V AC Power Supply. It provides power directly to the logic board. From there, it is distributed to the rest of the computer.
What you need
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The "SuperDrive" is mounted similarly to the hard drive, and positioned right next to it.
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Push these two tabs out, and lift the drive up.
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The fan recieves power from two contacts on the logic board and has no connector.
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In all of the years that I have worked on this machine, I have found no good way to remove the fan.
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The best way to start, is to push in here on the side of the fan.
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Being careful not to exert too much force, try to push in, and wiggle the fan outward as such. (2nd Photo)
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You can now lift the fan all the way out, and remove it.
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The Fan Power Contacts on the Logic Board:
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To remove the power supply, squeeze these two tabs and lift the front up.
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On the back of the power supply, there is a tab that also must be pressed to remove the power supply fully. You can then lift it out all the way. A firm tug may be necessary to seperate the power connector.
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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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