Combined boardview and PDF schematic for MacBook Pro logic board 820-2850, stored in a 3.85 MB RAR. Apple identifies logic boards by these 820 numbers, which are printed on the PCB and must match the documents. Load the boardview into OpenBoardView, FlexBV or a similar program to find components and test points, and read the schematic to understand power rails, sequencing and signal routing. Useful for diagnosing no-boot, no-charge or shorted rail faults. Verify the board number on the hardware before starting measurements.
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 | 29 Dec 2021 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 19 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 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.