Archive for the MacBook Pro A1278 logic board 820-2936-B, codename K90i. Apple identifies logic boards with 820-xxxx numbers, and the trailing letter marks the revision, so verify that the board reads 820-2936-B. The name does not state the contents, which may be a schematic, boardview or both; open it to check. Such documents help trace power rails, find the SMC and charging circuitry and locate test points when diagnosing a no-power or short condition.
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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 5 Apr 2021 | Open file on RM Schematics |
| @LaptopsBoardview | 29 Apr 2021 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | 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.