Apple schematic for logic board 820-2031, drawing number 051-7124, revision tag L000, supplied as a 1.49 MB RAR that presumably wraps the PDF. The 820- numbers are Apple board part numbers and 051- identifies the schematic. Extract it and open with any PDF viewer to search nets and parts. Useful for tracing power rails, following signals and finding test points when diagnosing shorts or no-power faults. Check the 820 number on the board matches before trusting the pages.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 17 Sept 2026 | Open file on RM Schematics |
| @schematics_bios | 27 Oct 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.