My Mac Mini bought early 2013 won't start. I get half the Apple startup chord and then it shuts down again. It doesn't even get to the gray screen, apparently no video output. I tried the different keyboard commands and also pulling out all cables to see if there is any external devices that is the cause but no luck. Reading from a suggetion I also held down the power button for 20 seconds after pulling out the power cord. But the problem remain. After pressing power I hear the sound coming and then goes out after less than a second.
Is there anything I can try except taking it to the Apple repair guys?