iMac does not start , does not turn diagnostic LEDs
My problem is due to a 27-inch iMac Late 2012 Quad Core Processor 2.9, was replacing the HDD of this machine, the Mac I then lit the job done. Shut down your Mac and try to light again but this no longer wanted to turn more.
I have tried to make it on again, and change the power supply, replace the battery of Mother Board, Remove all electronic parts and place in anti-static bags but the iMac does not react. When connecting your iMac to the electric current, is not none of the LEDs lights of diagnotico.