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Powerbook won't charge, weird behaviour
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Fresh-Faced Recruit
Join Date: Jan 2005
Status:
Offline
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i have a Powerbook G4(DVI) of around 1 year and a 45w new charger(new because the other one got stolen).
Anyway the problem is, since of lately, i plug everything, and the charger light stays amber, if i take out the battery it turns green, but the PB doesn't start, if i fiddle with the plug in the PB same stuff, so i tried measuring it with a multimeter and the voltage is very low, the thing is, if i make contact between the lower interior ring and the outer shielding the leds turns green,and with the multimeter i can then measure what i believe to be the correct voltage, around 22/23volts (of a rated 24v on the charger);But here comes the weird part, if with a screwdriver i short the lower interior ring with the top 1, the light turns red, or it gives out a light spark, and then , i plug it on the PB and it charges beautifully..of course it doesn't last...
To make matters worse, the plug inside the PB seems a little loose, and i wonder if it has anything to do with it..Since i don't have an Apple store nearby or any user with a PB around,there's not alot i can try..
What do you guys think? Has it happened to anyone,because i don't know if it's the PB or the charger...
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Clinically Insane
Join Date: Nov 1999
Location: Where Airbus babies hatch
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Unless it's a 12" Powerbook, I'm quite sure you need a 60 watt minimum power supply. The Apple Powerbook supplies are rated 65W.
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Fresh-Faced Recruit
Join Date: Jan 2005
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its a 15" Powerbook, the charger always worked well, don't know why it started malfunctioning suddenly...
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Admin Emeritus  Join Date: Oct 1999
Location: Zurich, Switzerland
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1. Stop monkeying with the adapter, lest you short it out! 
2. Check whether your PowerBook requires the 65W adapter. Early TiBooks did not, but the last version did, and I think that's the one you have (867MHz/1GHz model). If you use the 45W adapter on a PowerBook that needs the 65W version, you can still operate it, but you cannot charge and use the computer at the same time. http://docs.info.apple.com/article.html?artnum=88231 lists which models use which adapter.
3. Your problem sounds more like a Power Management Unit thing. Try resetting the PMU. http://docs.info.apple.com/article.html?artnum=14449 tells you how to do this.
tooki
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Fresh-Faced Recruit
Join Date: Jan 2005
Status:
Offline
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the 45w adapter always worked fine, why shouldn't it work now?
i have reset the PMU, same thing, if the charger is connected to the PB i just get the amber light; i have now finished disassembling the PB power connector, it's a very small piece, i tried fiddling with it, but with no success,even with it just connected outside the PB i only get the amber light, does anyone know how to check it for damage? the thing just won't charge... the thing that puzzles me is that if i touch the lower inner ring of the connector with the outer shielding it lights up the green light, and with the multimeter i can see it outputs the correct voltage... help =/
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