RAR archive for Apple logic board 820-1881 with schematic number 051-7181 at revision B000, about 1.31 MB. A schematic of this size normally covers the whole board, so it is useful for following rails, checking enable signals and identifying components by reference designator during repair. Revision B suggests an early release, so compare component values with the board if anything looks inconsistent. Extract it with WinRAR or 7-Zip and confirm the 820 number silkscreened on the PCB before use.
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.