Emergency!  iBook will not start at all.

hey guys,
i'm in a bit of a bind b/c it's the weekend and i got this ibook from my work. i shut it down properly, and now it won't start up at all. i tried all the techniques like pressing shift, control, option and power, and it still won't work. please help me, anyone.

Can you hear any fan noise? Does the iBook chime? If so, you have the dreaded logic board failure that caused me to upgrade to a G4. If not, is the battery charged? press the button on the battery and see how many green lights turn on, or plug the iBook into the mains. Also try holding the on button for a little longer, and see if this makes a difference.

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