Documentation archive for Apple board 820-1540 under project Q45B, packed as RAR at 2.14 MB. Q45 is an Apple internal project code, and the B suffix separates this variant from the base Q45 and Q45A packages that share the same board number. The contents are not named, but files of this size often include a schematic and possibly layout data. Check silkscreen details and the variant against your unit before tracing rails, measuring test points or swapping components based on this file.
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 (4)
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 |
| @IT_SERVICE_WORLD | 28 Sept 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.