Power Supply Replacement - 24" iMac
1 - 2 horas
Computer was shutting down after going to sleep on it's own. After that, it wouldn't boot up anymore and only a fan could be heard with a black screen.
Repair was fairly easy.
Make sure to have the torx screwdriver #8 & #10, preferably with a long bit to get in between the case and the screen. Tweezer was handy for placing the torx screws back into place.