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# macintosh-portable
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## Attention!
The original Macintosh Portable have finally surfaced. They can be found here:
* [nicpunt github ](https://github.com/nickpunt/nubus-se30/tree/master/Schematics/apple )
* [archive.org ](https://archive.org/details/Macintosh68kSchematics )
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## Introduction
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This is an attempt to reverse-engineer **Macintosh Portable** motherboard's power distribution and management subsystem.
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* The files can be opened and edited using [KiCad ](http://www.kicad-pcb.org/ ).
* Check out the [PDF releases ](https://github.com/ppieczul/macintosh-portable/releases ) of the schematics.
* You may take a look at my collection of vintage computers: [oldcrap.org ](https://oldcrap.org )
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## V1M Hybrid Board
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## Apple Power Manager Chip (PMGR)
This is [Mitsubishi M50753 ](http://www.bitsavers.org/components/mitsubishi/_dataBooks/1989_Mitsubishi_Single-Chip_8-Bit_Microcomputers.pdf ) Microcontroller with embedded EPROM.
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## Apple Sander-Wozniak Integrated Machine (SWIM)
This is a floppy controller chip, full chip spec is [here ](http://dec8.info/Apple/Apple%20Floppy%20Notes/SWIM%20Chip%20User's%20Ref.pdf ). 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 ](http://datasheet.elcodis.com/pdf2/74/25/742581/g65sc22p-3.pdf ).
