RAR archive for the Apple logic board numbered 820-2101, bundled with schematic number 051-7492 at revision B000. Apple pairs each 820-xxxx board number with a 051-xxxx schematic number, so this set most likely holds circuit drawings for that board, though the name does not list the exact contents. Technicians use such material to trace power rails, follow signals between sheets and find test points when chasing a short. Before relying on it, compare the 820 number and revision silkscreened on the PCB with the file, since sibling revisions differ.
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 |
| @IT_SERVICE_WORLD | 28 Sept 2019 | 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.