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Helpful answers
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Nov 20, 2013 6:10 PM in response to Matthewlopezby Jan Hedlund,First of all, you may want to use a multimeter to check that the (45 W) power adapter is capable of supplying 24 V DC out (the centre of the low-voltage plug is positive, the outer ring is negative).
A bad battery can put a heavy load on power circuits. A further check could be whether or not the PowerBook turns on with the battery removed.
Are there any signs of activity (a startup sound, any other sounds, or a green light)?
See also the article below for how to reset the Power Manager.
http://support.apple.com/kb/HT1781
Jan
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Nov 21, 2013 6:41 PM in response to Jan Hedlundby Matthewlopez,I used a multimeter to test the charger and it works. I tried to reset the power manager. There's something wrong inside the computer where it plugs in. I wiggled the charger inside the computer, and a green light came on, and a startup noise. No screen. What do you think is wrong?
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Nov 21, 2013 7:45 PM in response to Matthewlopezby Jan Hedlund,Hi,
There is a standard problem with the low-voltage input jack in the PowerBook 190 and 5300 models. The solder joints underneath the connector block work loose and need to be resoldered. Information about this can be found on the Internet (try a Google search for PowerBook 5300 disassembly). Disassembly takes some time, but the repair is not really difficult if you know how to handle a soldering iron.
Jan
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Nov 22, 2013 12:18 PM in response to Jan Hedlundby Matthewlopez,Now I've got the computer to work great but the cord is so sensitive a little move will stop it from charging. Thank you I'll try that solution.