Archive covering the Apple A1224 with logic board 820-2143 revision A, a 1.42 MB RAR. A1224 is the model number of an earlier aluminium iMac, and the package probably contains schematic or boardview material for its main board. Use it to locate power supply rails, inspect standby and main power circuitry and trace connections to the display and peripheral connectors. Make sure the board marking reads 820-2143 before relying on the diagram, because Apple revised logic boards between production batches.
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 (7)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 2 Oct 2021 | Open file on RM Schematics |
| @LaptopsBoardview | 13 Nov 2021 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @boardviewsandachematics | 1 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 4 Jul 2026 | Open file on RM Schematics |
| @cyberlanelectonik | 14 Jul 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.