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Home Forums 68kMLA PowerBook 3400 crazy sound... — #10
Post #10 by Hotdog Zanzibar
Source Forum68kMLA
CategoryHardware
Post DateMon, 1 Jun 2015 - 03:56
Original URLhttps://68kmla.org/bb/threads/powerbook-3400-crazy-sound.2024/
Post
Take the battery out.  Plug the AC adapter back in.  If it doesn't chime/screen pop up on schedule, press the hard reset button on the back.  If that doesn't work press it once again.  For God's sake don't just go out and replace the logic board lol.

...

If none of that works the first step would be the replace the power board; however, while it is possible it is a logic board problem, that type of repetition suggests repeated attempts and failures to turn on (I think - probably to draw sufficient current).
Oh, there has been MUCH of the plugging/unplugging, removing battery, putting the battery back, etc. -- in all the different ways possible. I've tried leaving the AC plugged in overnight with the battery, then without, then resetting the PMU with the battery, then without... then with the AC, then without... then with AC and battery, then just battery, then just AC... you get the idea.

I replaced the power board with one that user AichEss sent me. It was tested fully before he sent it. It's GOT to be the logic board, at this point.

mp.ls