iMac (24-inch) Take Apart —Power Supply, AC/DC 77
Replacing the AC/DC Power Supply
WARNING: The AC/DC power supply PCB remains powered up whenever the system is
plugged in, whether or not the system has been turned on. Use extreme caution when
troubleshooting the system with the front bezel removed.
Don’t work alone. In the event of an electrical shock it is important to have another
individual present who can provide assistance.
Keep one hand in your pocket when working on any iMac (Early 2006) system that is
plugged in. This will help ensure that your body does not provide a path to ground in
the event that you accidentally make contact with the line voltage.
Don’t wear jewelry, watches, necklaces, or other metallic articles that could present a
risk if they accidentally make contact with the power supply circuitry.
If you are installing a new power supply, turn the power supply upside down and stick the
two foam gaskets onto the bottom edges of the mylar sleeve, where shown.
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