File:Macintosh analog board CR20 CR21 MBR1045 mounting (Macintosh Repair and Upgrade Secrets Fig 7-1).png
Summary
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Drawing comparing the original IR31DQ barrel Schottky rectifier soldered at CR20 or CR21 with the MBR1045 TO-220 upgrade screw-mounted on the heat sink, with cathode (K) and anode (A) marked. Figure 7-1 of the book.
Source
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Larry Pina, Macintosh Repair & Upgrade Secrets (Hayden Books, 1990), chapter 7, p. 127, Figure 7-1. 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 | 09:13, 25 October 2026 | | 747 × 531 (108 KB) | Josh (talk | contribs) | Upload figure for repair guide |
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