Yesterday my uncle came around and gave me his dead ibook G4 12"1.2Ghz to see if I can do something with it as he already has a new one.
I found out very fast that the problem was the logic board, so I started my PC and just googled all night.
Finally I found a site with something that looks like a solution:
Logic board fix
After I did what was told overther, I started the Ibook and the screen lighted up, but nothing more.HD was pinning but no Apple logo.
I inserted the OS cd and pressed C but still nothing on screen.
So i decided to start over again.
Well,I think that was not the best idea, because screen doesnt light up anymore
Therefore i'm looking now for a working logic board.
I found one, problem is that it is a different partnumber.
My Ibook has p/n:
820-1646-A , and the board I saw has:
661-3415
The seller has a picture of the board online, and as far as I can see it looks the same as mine.
Now I wonder if I will get any problem if I installed this other partnumber in my Ibook.
CPU is the same, and it comes out of a 12"Ibook G4. Only different I can find is the partnumber.
Hope that someone can help me with more information.
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