Schematic in PDF format for the Apple logic board 820-01987, packed in a 3.50 MB RAR archive; the name does not give the MacBook model. Apple schematics let a technician follow power rails from the charging circuit through to the SoC or CPU, find which components generate each voltage and trace signals such as power-on and reset. Any PDF reader opens it. Check the 820 number printed on the logic board before relying on it, and pair it with the matching boardview to locate parts physically.
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 | 18 Aug 2022 | 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.