PDF schematic for Apple logic board 820-2828, covering revision 820-2828-A, packed in a 1.97 MB RAR archive. The 820 prefix is Apple's logic board part number, and revision letters can change component choices. Apple schematics document the power rails, the SMC and the sequencing logic. That makes them the main reference for no-power and no-boot faults alongside a boardview. Confirm the exact 820 number and revision on the board itself before measuring against the diagram.
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 | 5 Jun 2023 | Open file on RM Schematics |
| @LaptopsBoardview | 19 Jul 2024 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | 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.