PowerBook G4 1.5-1.67 GHz won't boot or charge the battery
I'm using a Powerbook G4 15" 1.67 GHz. Last week I was using my computer as normal when it suddenly shut down. The battery was dead, and the charger had a reputation for being flaky, so I reattached it. It booted, but then the reserves on the battery ran out of power and it died. The light on the power adaptor then went out.
Upon trying again, and again, it worked, but with shorter and shorter battery lives. Now the batteries are completely dead. It won't charge the batteries.
I replaced the battery and the charger with no luck, and I've replaced the DC in/sound board. The symptoms are the same.
If run with no battery then the machine makes the brief whirring at the beginning as it spins up the HD, but then it turns the fans on and doesn't turn them off. The screen remains black.
Is there anything I can do?
If not, there's a lot of data on there which I'd like - how can I either:
i) kludge some sort of battery simulator which will provide continuous power to the battery port (I am 100% certain that it runs fine off battery)
ii) Charge the battery externally (I don't have access to another Powerbook G4, at least for the time being)
iii) Get the HD out and read it with another computer?
I can't afford to send it off for data recovery, and since it's out of warranty I can't afford an apple repair either (I think they won't do it anyway, since it's a legacy product)
Any help is much appreciated - I'm getting kinda desperate here :S
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