Powerbook 1.67ghz big problem

Question

Hi there,
I have a 15" powerbook aluminium 1.67GHz and when I turn it on I hear the dong but my screen stays black and my keyboard doesn't work anymore. I have tried to hook it up to an external monitor and it stays black aswel. Is there anybody out there that knows what the problem could be. Thanks in advance.

Answer 1

I had a similar problem with an ibook, It is either the video card or the logic board. though it doesn't really matter cause if it is under warranty, apple will just replace the entire logic board altogether. They do this cause the video card is soddered to the logic board and it is a much easier and faster repair to just replace the logic board.
However, when I had this problem with my ibook, I was told that apple cannot guarantee the safe keeping of my files, though the genius told me I shouldn't be too concerned cause my hard drive tested fine.
When I got it back, apple had not only replace the logic board, but the hard drive and the ram as well. Why? I do not know, but the problems persisted and upon my second visit to the genuis bar the told me that sometimes certain hardware components have a difficult communicating with others, i.e. my harddrive had a hard time communicating with the new logic board--I find this disgustingly absurd, but what was I to do.