Apple logic board 820-1501 archive for project Q26B, packed as RAR at 1.33 MB. Apple's internal project code Q26 covers several related variants, with this package marked by the B suffix. The contents are not described in the name, so extract it to confirm whether a schematic, layout data or both are included. A technician would use it to follow the power-up path, measure test points and identify faulty components. Check that your board matches this variant before relying on it.
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 @Mac_Shematic_Santale. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @Mac_Shematic_Santale | 5 Jul 2019 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 23 Feb 2021 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 2 May 2021 | 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.