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thank you! yes, read that too. i did check with multimeter the 'power in' at soldering points and seems '+' and 'gnd' do not short at least where they connect to the motherboard. I can also see gnd pin fom power in being conductive to the "chassis" (?metal frame?, i.e. no resistance here). And...

Thank you! No, clicking was not from the charger, it was somewhere within the laptop, felt like it was coming from the speaker. but when i tried again now it just consistently gives a short spark at the back of the 'power in' port and nothing happens after. I wonder if there is a way to find...

Hi, found this old thread as try to bring back to life Powerbook 190 motherboard that i picked up at a local ewaste. May be someone can give me an advice? I had similar symptoms suggesting a short: when power supplied made a chime and then after couple of seconds went off with a spark on the...