How do I "Jump" the logic board to bypass the power button?
I've been trying to troubleshoot a dead PowerBook g4 12". The machine is dead. Not powering on, and has no signs of any obvious reason for this.
So far I have wittled it down to a logic board replacement, as the DC lights up, and charges the battery.
Before purchasing a new logic board, I have been advised by an friend at the Apple Store to try "jumping" the logic board to bypass any chance of it being a top case power button issue. He explained it was two contact points on the logic board that when connected together, would bypass the power switch, ensuring its nothing obvious. He then reccomended ifixit for teardowns.
I cant find these contact points, or any documents showing where these points are!
Does anyone know where I can find these?
It's right below the keyboard socket. I have used this trick and it worked on a system I had. In my case, I assumed that the power button was bad, but I was able to see the button contacts closing using a ohm-meter on the keyboard connector. The only thing I could figure was the socket or circuit on the logic board had an open.
I soldered a pair of wires from the power button directly to the contacts on the motherboard.
When you find the contacts, just use a small screwdriver to jump the contacts.