RAR archive labelled for Apple logic board 820-3588-A, with the A suffix indicating the board revision. Apple's 820-xxxx numbers identify the logic board itself rather than the Mac model, and the name does not say which machine it fits or whether the 1.57 MB package holds a schematic, boardview or both. Extract it and check the 820 number etched on the board first. Such files help trace power rails like PPBUS, find test points and locate shorted components on a dead board.
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 @pepeelectronica. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @boardviewsandachematics | 1 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 4 Jul 2026 | Open file on RM Schematics |
| @cyberlanelectonik | 14 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 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.