After my recent angry tirade against Apple I felt I needed to give something back and with that I have succeeded in restoring life to the Powerbook! I was doubtful if I’d ever get this thing back up and running but using a combination of parts from my workshop I was able to resurrect the beast.
With the assistance of my best friend we set about performing open logic board surgery to see if we could get anything to work. Having removed any remaining Copper Sulphate from the board and the case we tried various options on the workbench before finding a setup that worked.
- One screen is good
- The other with the yellow line issue displayed output on one occasion but then never again (it displayed the no bootable media found screen)
- Both boards will function
- One hard drive produces nothing but a blank backlit screen, the other will boot into MacOS 7.5.2
- One battery backup will get the unit to boot, the other will not
- One trackpad is broken, the other is good
- Both keyboards are good
Having concluded these things it was then just a matter of putting the working components into the shell and screwing it all back together.
Here is a view of the area the battery leaked:
This board was the best of the two. Both will boot but one of them has more damage around what remains of the power connector pins. The small amount you can see here was removed and the area cleaned before re-fitting.
With all the components removed you can see the sort of mess the case was in. I carefully trimmed back the areas around the edges of the shielding that were too far gone and fixed it back down with electrical tape one the case was cleaned.
After we achieved a stable boot it was just a matter of putting it all back together again.
It’s good to see you smiling again Powerbook!
I found that even after all this time and the drastic condition it had ended up in it would flawlessly boot into 7.5.2. I ran it for a good length of time to test the stability – everything seemed to be working fine.
Digging around I found a load of old documents from the previous owner and some interesting old programs to play with.
I’m very happy with the way this story turned out, thanks to Damian, the 68kMLA and the people who threw this poor old Macintosh into a skip as their loss is our gain.