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PowerBook 145B Noise & not booting


Well-known member
Sounds like my PowerBook 150 when trying to run it off its dying battery, as it dies it will display a blank screen like that and similar speaker crackle. So yeah, check the AC adapter if it's an original, if not my next guess would be a short somewhere.


Well-known member
Ok thanks, I'll check the PSU. Up to now, I considered it as working because I used it sometimes for my PowerCD, but I know that the PowerCD is very tolerant concerning its input voltage...


Active member
Did you ever get any further? I’m trying to diagnose a nonfunctional 140 of my own and was wondering