Brand
Format
Device
- Name Type Board Source Added Size
- M75.LED(051-7271).bakSchematic · 22.5 KB · 10 May 2025Schematic pdf—22.5 KB
- M75.IR(051-7287).bakSchematic · 21.3 KB · 10 May 2025Schematic pdf—21.3 KB
- M75.051-7225 resolved.bakSchematic · 1.82 MB · 10 May 2025Schematic pdf—1.82 MB
- M75 MLB 051-7225 resolved.bakSchematic · 1.79 MB · 10 May 2025Schematic pdf—1.79 MB
- Apple MacBook Pro A1226 M75 820-2101Schematic · 820-2101 · 1.87 MB · 10 May 2025Schematic pdf1.87 MB
- LED(051-7271)Schematic · 22.5 KB · 10 May 2025Schematic pdf—22.5 KB
- IR(051-7287)Schematic · 21.3 KB · 10 May 2025Schematic pdf—21.3 KB
- 051-7226Schematic · 283 KB · 10 May 2025Schematic pdf—283 KB
- 051-7225 resolvedSchematic · 1.82 MB · 10 May 2025Schematic pdf—1.82 MB
- 820-2101 M75 IR(051-7287)Schematic · 820-2101 · 22.5 KB · 10 May 2025Schematic pdf22.5 KB
- M59Schematic · 1.75 MB · 10 May 2025Schematic pdf—1.75 MB
- MLB schematic resolvedSchematic · 1.75 MB · 10 May 2025Schematic pdf—1.75 MB
- M23.bakSchematic · 1.80 MB · 10 May 2025Schematic pdf—1.80 MB
- LIO schematicSchematic · 223 KB · 10 May 2025Schematic pdf—223 KB
- M23 Proto2.schematic.bakSchematic · 1.79 MB · 10 May 2025Schematic pdf—1.79 MB
- M33.bakSchematic · 1.81 MB · 10 May 2025Schematic pdf—1.81 MB
- M33-DVT2.schematicSchematic · 1.84 MB · 10 May 2025Schematic pdf—1.84 MB
- 820-00939-A J174 Circuit diagram
Full circuit diagram in PDF for Apple logic board 820-00939, revision A, Apple project J174.
Schematic · 820-00939 · 3.48 MB · 10 May 2025Schematic pdf3.48 MB - M33 Proto2.schematic.bakSchematic · 1.83 MB · 10 May 2025Schematic pdf—1.83 MB
- apple 051-7225 resolved1-SRGinfotechSchematic · 3.46 MB · 10 May 2025Schematic pdf—3.46 MB
- Apple 051-7898 K24-SRGinfotechSchematic · 2.52 MB · 10 May 2025Schematic pdf—2.52 MB
- 820-00939-A J174 Architecture diagram
Architecture diagram in PDF for Apple board 820-00939-A, project J174. At 109 KB it is a block-level overview rather than a full schematic.
Schematic · 820-00939 · 109 KB · 10 May 2025Schematic pdf109 KB - Apple 051-7261 resolved-SRGinfotechSchematic · 2.03 MB · 10 May 2025Schematic pdf—2.03 MB
- APPLE 43 820-3437-SRGinfotechSchematic · 820-3437 · 2.60 MB · 10 May 2025Schematic pdf2.60 MB
- Apple A1229 rec-c-SRGinfotechSchematic · 1.17 MB · 10 May 2025Schematic pdf—1.17 MB
- Apple iMac 27 A1419 D8 051 9505 820 3299 051 9505 800 SRGinfoteSchematic · 820-3299 · 2.71 MB · 10 May 2025Schematic pdf2.71 MB
- apple-imac-27-a1312-sch-k23-mlb-schematics (2) - SRGinfotechSchematic · 1.59 MB · 10 May 2025Schematic pdf—1.59 MB
- J43RIO电路图Schematic · 162 KB · 10 May 2025Schematic pdf—162 KB
- APPLE K36A 051-7559 RH-SRGinfotechSchematic · 2.57 MB · 10 May 2025Schematic pdf—2.57 MB
- Apple Mac SE 30 Service Manual-SRGinfotechSchematic · 4.89 MB · 10 May 2025Schematic pdf—4.89 MB
- Apple K19-SRGinfotechSchematic · 2.00 MB · 10 May 2025Schematic pdf—2.00 MB
- Apple M33-SRGinfotechSchematic · 1.88 MB · 10 May 2025Schematic pdf—1.88 MB
- Apple K86 (1)-SRGinfotechSchematic · 1.52 MB · 10 May 2025Schematic pdf—1.52 MB
- Apple K86-SRGinfotechSchematic · 1.45 MB · 10 May 2025Schematic pdf—1.45 MB
- Apple k87-SRGinfotechSchematic · 1.48 MB · 10 May 2025Schematic pdf—1.48 MB
- Apple M38A-DVT MLB 051-7148-SRGinfotechSchematic · 1.24 MB · 10 May 2025Schematic pdf—1.24 MB
- Apple M88-SRGinfotechSchematic · 2.04 MB · 10 May 2025Schematic pdf—2.04 MB
- APPLE p84-SRGinfotechSchematic · 3.07 MB · 10 May 2025Schematic pdf—3.07 MB
- Apple M9 MLB DVT resolved-SRGinfotechSchematic · 1.78 MB · 10 May 2025Schematic pdf—1.78 MB
- Apple M9 MLB SULLY DVT 051-7023 06-SRGinfotechSchematic · 1.41 MB · 10 May 2025Schematic pdf—1.41 MB
About schematics
A schematic is the electrical drawing of a board: it shows how every chip, MOSFET, coil and connector is wired, which rail feeds which circuit, and what voltage or resistance you should measure at each test point. It is the document you need to trace a missing rail or a short.
Schematics are published per board, not per laptop model. The same Compal LA-E891P board can sit in several HP models, so always search by the board number printed on the PCB rather than by the sticker on the case.