File:Macintosh Plus schematic SCSI port J3 and CR1 (Apple 050-0159-A).png
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Summary
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Detail of Apple drawing 050-0159-A, Schematic, Mac+ Main Logic PCB (March 1986): the NCR 5380 SCSI controller U6A, the external DB-25 SCSI connector J3, and the diode CR1 (1N4001) drawn between +5VF and J3 pin 25, TPWR. The same drawing lists CR1 under "Not used" in its reference designation table.
Source
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Cropped from File:MacintoshPlus LogicBoard Shematic.jpg (region x 11400-13200, y 4700-6300 of the 13,200 × 10,200 scan).
Author
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Apple Computer, Inc.
Licence
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Copyright Apple Computer, Inc.; the sheet carries Apple's notice of proprietary property. Not freely licensed. Hosted for repair reference, with the source cited.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:22, 25 October 2026 | | 1,800 × 1,600 (471 KB) | Josh (talk | contribs) | Upload figure for repair guide |
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