Chosen Solution
Hi! I have a late 2006 iMac “Core 2 Duo” 2.16 20-Inch (A1207; last of white plastic models). It’s been fine until today, but is suddenly powered off and won’t turn on–no noise, lights, fans…nada. I’ve:
- reset the SMC
- tried different power cords and outlets
- removed and reseated RAM
- opened it: none of 3 diagnostic LED lights are lit At this point I’m assuming it’s the power supply, but wanted to make sure before I buy another. Thanks!
- Mark -
Here’s how to do it: iMac Intel 20" EMC 2105 and 2118 Power Supply Replacement Apple Part #: 661-3780
I have the same problem for exactly the same model. However, when I opened up and plugged the power cord, the first LED did light up. I unplugged the power cord and plugged it again, but this time the first LED did light up. Not sure if I assume the problem to be with the PSU or some other problem because of the fact that it turned on the first time. Please help.
