If it were me I would look at the power button, it looks like it is on the I/O panel.
To open the back, Place the computer face down on a flat surface.
Starting at the groove at the bottom of the computer cover, use your fingers to separate the computer cover from the computer by lifting the insides of
the computer cover.
Work around the computer cover and gently ease the computer cover away from the computer
[img]http://www.donhoover.net/MVP_small.png[/img]Consumer Security - 2011, 2012, 2013
Be wary of strong drink. It can make you shoot at tax collectors -- and miss.
-From the Notebooks of Lazarus Long
-Senior of The Howard Families
I recently worked on a studio one..the problem is the power supply..do not spend 100 on a replacement supply..if you have basic soldering skills,,there is a small capacitor in the center of the supply that dries out,,47uF50V cap can be replaced and it will work fine,,i done the same thing others have done,,facedown powered up fine,,the fluid in the cap moves around,,will power up once, when stood back up will not,,the cap can be purchased from several vendors for around .16 cent..the cap more than likely will have a bulged top..seen in the pic attached.
sorry,,pic will not load,,capacitor is in the center of the power supply..around D15 beside the transformer if ya can get to it its very easy to replace..