MBP turns black and stays blocked. Power loss
My MBP switches suddenly off, black screen and not a single status light nothing.
This happens significantly when i shake the book or when i tap with my fingers on top of the book .
Or when i move the book around
After that the only way to wake the macbook is to open the case and disconnect the battery for 10 sec.
I tried PMC reset everything nothing helps.
I tried removing the RAM for proper connectivity,
plugged all cable on the motherboard in and out .
Finally i replaced the harddisk. still no success.
Is the motherboard broken or is this a cable connectivity issue ?
Has it to do with the power source circuit ?
Many thanks for your help
Andy H. Switzerland Europe