RAR package of documentation for Apple logic board 820-1599, project Q59B, about 1.31 MB. The project designation is Apple's internal code, and the B suffix marks one variant among related Q59 boards. The exact contents are not stated, but files of this size usually contain schematic pages. A technician would use it to follow the power-up sequence, identify components around a fault and check connector pinouts. Make sure the variant matches your unit, because the A and C versions exist under the same board number.
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.