Apple MacBook repair package bearing the internal project code M38A, compressed as a 1.35 MB RAR. The name says nothing about the model number or logic board number, so open it with WinRAR or 7-Zip to see what drawings are inside. Schematics for Apple boards like this one are used to trace power rails from the adapter input to the CPU, check standby voltages and find shorts. Note that M38A also appears on some iMac documents, so confirm the 820- number on your board matches 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.