MacBook doesn't power up
Hi everybody,
My MacBook 13 inch mid2007 2.0Ghz/2x512/80Go/combo seems to be dead.
When the battery is full it does not power up even if it is plugged with the ac adaptor magsafe.
When the battery is out it's the same.
The battery is charging well.
The light on the magsafe adaptor turns green when there's no battery installed, and orange when the battery is charging.
I've read all the topics, I've dismantled the uppercase in order to check if there's something burnt in the logic board, but nothing seems to be damaged.
What do you think? Is it the logic board which is dead or the left I/O frame?
Thank you all for your help
UPDATE
It seems that the light on the magsafe adaptor isn't always green or orange when plugged. Sometimes it doesn't light, sometime lightly... I think it could be a problem on the power unit what do you think at all?
Is this a good question?