Component location map in PDF for Apple logic board 820-00939, revision A, project J174. Apple numbers its logic boards in the 820-xxxxx format, with the suffix indicating the revision. A placement map like this shows where each reference designator sits on the board, so it is used alongside the circuit diagram to find a part, connector or test point once a fault is traced. The file is only 297 KB, so expect placement drawings rather than full circuits. Match the 820 number on the PCB first.
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 @ShareMan_Electronic_Files. Enginerys does not host this file.
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The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @ShareMan_Electronic_Files | 10 May 2025 | Open file on RM Schematics |
| @notebookschematic | 7 Mar 2026 | Open file on RM Schematics |
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