Archive for the Apple MacBook A1278 on logic board 820-2565-A, the revision A of that board number. The 820 prefix is Apple's own logic board numbering. Contents are not listed, but at 2.05 MB it may hold a schematic, boardview or firmware for the board. Technicians use such material to trace power rails, locate components and diagnose no-power or no-charge faults. Verify that the 820 number printed on the logic board matches before relying on any of the data, as similar A1278 units use different boards.
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 (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 30 Sept 2020 | Open file on RM Schematics |
| @LaptopsBoardview | 3 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @boardviewsandachematics | 1 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 14 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 31 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.