Apple logic board schematic for 820-00045, revision A, packed as a PDF inside a RAR archive. Apple uses 820-xxxxx numbers for its logic boards, and the number is printed on the PCB itself, making it the reliable way to match documentation. A schematic lets you trace power rails, check the enable and power-good chain, and identify which component sits on a shorted line. The name does not state the Mac model, so confirm the 820 number and revision on your board before using it for diagnosis.
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 Sept 2024 | Open file on RM Schematics |
| @cidschematicandboardviewofficial | 31 Dec 2024 | 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.