File:Macintosh 128K logic board 820-0086-C layout (Macintosh Repair and Upgrade Secrets Fig 10-2).png
Summary
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Layout drawing of the early Macintosh 128K logic board, part number 820-0086-C (board 630-0101), with grid rows A to G and columns 1 to 15. The sixteen 4164 RAM chips are at F5 to F12 and G5 to G12. Pina's Figure 10-2.
Source
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Larry Pina, Macintosh Repair & Upgrade Secrets (Hayden Books, 1990), chapter 10 "Disk Drive, RAM, ROM, and SCSI Upgrades", Figure 10-2, p. 177 (PDF p. 191). Cropped from File:Macintosh Repair & Upgrade Secrets.pdf (see Macintosh Repair & Upgrade Secrets).
Author
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Larry Pina; the book credits the figure to Sophisticated Circuits, Inc.
Licence
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Copyright © 1990 Larry Pina; published by Hayden Books (Howard W. Sams & Company). Not freely licensed. Reproduced from the copy of the book hosted on this wiki for repair reference, with the source cited.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:36, 25 October 2026 | | 1,301 × 1,163 (210 KB) | Josh (talk | contribs) | Upload figure for repair guide |
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