3.Using a T8 screwdriver, remove the two self-tapping screws on the left side of the power supply board and the two machine screws on the right side of the board. Note: Self-tapping screw labeled S1 is longer than self-tapping screw S2.
922-7066
922-7654
(S2 in photo
922-7159 (S1 in photo)
4.Remove the power supply from the enclosure.
iMac (17-inch Mid 2006/Late 2006 CD) Take Apart — Power Supply 83