Apple logic board 820-1889 schematic archive, document 051-7374 revision C000, for project M42B, about 1.26 MB. Several 820-1889 files exist under M42, M42A, M42B and M42C project codes with different 051 numbers, so selecting the right variant is essential. This one is a near twin of the 051-7370 C000 file. Use it for tracing power rails, locating components and diagnosing shorts. Open with WinRAR or 7-Zip and check the PCB markings before relying on any value.
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.