1.9 KiB
1.9 KiB
macintosh-portable
Attention!
The original Macintosh Portable have finally surfaced. They can be found here:
Introduction
This is an attempt to reverse-engineer Macintosh Portable motherboard's power distribution and management subsystem.
- The files can be opened and edited using KiCad.
- Check out the PDF releases of the schematics.
- You may take a look at my collection of vintage computers: oldcrap.org
V1M Hybrid Board
Apple Power Manager Chip (PMGR)
This is Mitsubishi M50753 Microcontroller with embedded EPROM.
Apple Sander-Wozniak Integrated Machine (SWIM)
This is a floppy controller chip, full chip spec is here. Pin 0 is in the top row of the chip, considering how the text is printed on it.
Versatile Interface Adapter (VIA)
This is G65SC22PE-2, full chip spec is here.
