Apple A1278 MacBook Pro boardview for the J30 platform, logic board 820-3115 in revision B, supplied as a compact 168 KB RAR archive. Once unpacked it loads in tools like OpenBoardView, FlexBV or similar viewers, showing component placement, pin nets and test pads so you can trace power rails and find where a signal goes without the schematic open beside you. Check that the silkscreen on the board reads 820-3115-B, because A1278 machines were built on several different logic board numbers over the years.
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 (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 2 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @boardviewsandachematics | 1 Sept 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 14 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 23 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.