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Well, I was wrong. I had actually re-installed the battery terminals. Don't understand what the problem is - when I attach the benchtop power supply, the bank of 5 x AAA batteries or my spare very dead lead-acid battery to the terminals the same message comes up: "No battery reserve power...

Any progress on this one? Cracker of a thread.

Well, @elemenoh, I decided to take a few steps forward in my little project. I don't have a 3d printer to fabricate a dummy battery but I do have a few dead Powerbook 100 lead acid batteries so I decided to cannibalise one to make a NiMh battery pack - main priority is that the powerbook looks...

I thought I'd resurrect this old thread rather than starting a new one, hope that's OK. I have a plan to cannibalise a PB100 battery pack so that 5 x 1.2V AAA Eneloops can be clicked in and out and recharged using an external charger. This would permit carrying extra AAA cells in the field (for...

Hi everyone, thanks for your help. I cracked open the HDD and put electrical tape on the sticky rubber bumpers and now the computer is working well. Sound works, HDD works, recap of AB and LB seems to be holding up. The 5V pin on the floppy port varies by 0.02V from time to time - anyone know if...

Oh dear, turns out that one of my solder joints on the logic board had broken free. Thanks for the tip-off that it was probably a logic board problem! I redid the solder joints on the LB and the sound is working again. No luck with the hard drive yet, it's a Quantum 52 which doesn't bode well I...

Thanks for your suggestions guys, I'll check the diodes, I'll check whether the voltage stays constant and I'll check the polarity of the capacitors. If sound is a logic board problem it does seem odd to me that the sound was working well after I recapped the LB but stopped working after I...

Hi all, I've been fiddling around with this Mac Classic to try to bring it back to life. I washed the motherboard and it started working again so I figured recapping the MB was the next step. So the other day I finally found some time and I recapped the MB. All was working well, it's got some...