52 lines
2.0 KiB
Markdown
52 lines
2.0 KiB
Markdown
These are links to the official Apple Macintosh SE schematics.
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Source website: https://museo.freaknet.org/gallery/apple/stuff/mac/andreas.kann/schemat.html
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Unfortunately, there are no BOMARC schematics available for the
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Macintosh SE.
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The Internet Archive also has a copy of purportedly the same Macintosh
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SE schematics scan.
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https://archive.org/details/Macintosh68kSchematics
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Due to the illegiblity of the original Main Logic Board (MLB) page 1
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scan, this repository also contains a retrace of the schematic,
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striving to be as faithful as possible to the original. The retrace
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was done by hand and careful eyeing in Inkscape, after doing some
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simple image processing on the input scan. A script that uses the
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ImageMagick `convert` command is included to reproduce the processing
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steps.
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Notes related to the accuracy of the retrace.
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* The pinouts of all integrated circuit components have been verified
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with second sources.
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* The pinouts of the PDS slot and RAM SIMMs have **not** yet been
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verified with second sources.
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* The resistor values have been checked to be consistent with the
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reference designators, but **not all reference designators** have
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been verified to be consistent with the placement on the printed
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circuit board.
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* The schematic info blocks in the upper and lower left corners have
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been cross-checked with scans of other official Apple schematics to
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attempt to make them as faithful as possible to the original
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contents.
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Notes on the source SVG file:
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* The processed scan is linked as a hidden and locked image object.
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To view both the retrace and the original scan together, find the
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image object (possibly in the XML hierarchy) and make it visible.
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The image object is locked to make it easier to draw on top of.
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* The specific `sans-serif` font I used on my system is DejaVu Sans.
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So long as your system `sans-serif` font has similar metrics,
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everything should work just fine, otherwise you can replace the font
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family name with DejaVu Sans.
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