Apple schematic for model A1347, the Mac mini, with logic board 820-5509 and project code J64, provided as a PDF inside a 1.49 MB RAR archive. Apple's 820-xxxx numbers identify the logic board itself, so the number stamped on your board must match before using the drawings. The diagram helps trace power rails, check the SMC and power sequencing signals, and locate the cause of no-power or shorted rails. Pair it with a matching boardview to find physical component and test point locations.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @schematicslaptop. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 28 Feb 2023 | Open file on RM Schematics |
| @boardviewsandachematics | 2 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 4 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.