Apple logic board 820-1540 documentation set, marked with project code Q45, containing both a boardview file and a schematic diagram inside a RAR archive of roughly 4 MB. A related package carries the Q45A label, so compare the project variant and the board number printed on the PCB before using it. With the schematic you can follow rails and signals back to their source, while the boardview shows exactly where each component, net and test point sits, which speeds up short hunting and measurement work on the board.
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 @schematicslaptop. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 15 Jun 2021 | Open file on RM Schematics |
| @LaptopsBoardview | 17 Aug 2021 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 18 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | 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.