Archive for Apple logic board 820-2090, linked to schematic 051-7199 at revision E000, about 1.04 MB in RAR form. Under Apple numbering the 820 code identifies the printed circuit board and the 051 code the matching schematic, with the trailing letter block marking the drawing revision. A technician opens such a schematic to trace power rails, check signal paths and locate test points or fuses while hunting a short. Check that the number and revision on your PCB agree, as later revisions can move or rename parts.
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 (2)
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 | 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.