Introduction

How to replace the power button in an intel iMac.

To get to the power button first remove the hard drive fan as seen in other guides.
  • To get to the power button first remove the hard drive fan as seen in other guides.

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This is a picture of the button in place with the connector to the logic board removed.
  • This is a picture of the button in place with the connector to the logic board removed.

  • There are three plastic pins protruding up from the main back case that the button fits over. They appear to be slightly melted and mashed to hold it in place. I used a pocket knife to pry it up and off the posts.

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  • Here it is with the back plate of the button pried off. This exposes a white plastic washer under it.

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  • The center of the washer has a center locking pin to correctly place it on the back of the button. The washer is concave and the concave side faces the button, This gives the button a spring to it so that it will pop back out.

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  • This is he back of the button that will now just push out. Picture #2 is with the button removed.

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  • Test the button to see if it works.

  • After replacing the button, use something (like a low temperature soldering iron) that will melt the tops of the white plastic pegs to secure the button in place.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

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