My iMac intel won't boot up, probably PSU?
I've got a late 2007 iMac intel 2134 that won't power up at all. I confirmed that the AC cord is working, and then checked the LEDs, but none of them are on. At this point I'm fairly sure the problem is the Power Supply Unit. I have currently removed the PSU.
So here's my question: is there any way for me (very little electrical experience) to test the PSU to make sure it's faulty before ordering another $140 part? Also, how can I check the connection between the AC input and the PSU?