File:Macintosh analog board focus circuit (Macintosh Repair and Upgrade Secrets Fig 4-16).png
Summary
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Partial schematic of the focus and cut-off feed on the U.S. 128K to Macintosh Plus analog board: cut-off control R53, focus control R54, R9 and R16, connector J2, the colour-coded CRT socket cable and the CRT socket pin layout. Figure 4-16 of the book.
Source
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Larry Pina, Macintosh Repair & Upgrade Secrets (Hayden Books, 1990), chapter 4, p. 73, Figure 4-16. Cropped from the scan hosted on this wiki as File:Macintosh Repair & Upgrade Secrets.pdf (see Macintosh Repair & Upgrade Secrets).
Author
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Larry Pina
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 | 09:11, 25 October 2026 | | 1,259 × 465 (218 KB) | Josh (talk | contribs) | Upload figure for repair guide |
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