Apple schematic for logic board 820-02443, with the A suffix mentioned, supplied as a PDF inside a 5.20 MB RAR. Apple identifies its boards by 820-xxxxx numbers printed on the PCB, which is the reliable way to match a document to a MacBook since the model is not stated. Technicians use it to trace power rails, check sequencing signals and identify components around a short. Open it in a PDF reader and confirm the 820 number on your board matches before trusting values or designators.
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 (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 12 Sept 2023 | Open file on RM Schematics |
| @generalbios | 6 Oct 2023 | Open file on RM Schematics |
| @LaptopsBoardview | 19 Jul 2024 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | 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.