Archive for the Apple iMac A1418, EMC 2889, logic board 820-00430, with an A suffix that may indicate a revision. The 3.77 MB RAR does not state its contents, so extract it to see whether it holds schematics, a boardview or firmware. Apple numbers its logic boards with the 820- prefix, and the EMC code distinguishes model generations. Match both identifiers with the markings on the machine before using the material to trace rails or locate components.
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 @BiosSchematicWorld. Enginerys does not host this file.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @BiosSchematicWorld | 1 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @skclappybios | 11 Jul 2023 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Jul 2025 | 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 |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.