Chosen Solution
I have just now the same problem I was working on my ntel-Imac and suddely get out, I tried to switch on, nothing is dead, I changed plug and cable but nothing, I removed the working module and put back, nothing it seems dead, no current at all, can be the swicht, how I can it? Thanks, Luigi shantiram52@gmail.com
The best way to diagnose this is via the LED lights, how they act, which if any don’t light or stay lit. You could have problems in the power supply as well as the “switch”. Try disconnecting hard drive, optical drive, AirPortcard, SD card reader and Bluetooth/camera/sensor cable(s) to determine if one of them ispreventing the power supply from functioning If this answer was helpful please remember to mark it accepted.''
if a bad logic board here’s a place to buy the part: http://www.welovemacs.com/imacintelcore….
