Schematic in PDF form for an HP dv4 laptop built on board LA-4117P, packed as RAR; the name also carries the token bf309, possibly an internal reference. LA-xxxxP is the Compal board numbering pattern, so Compal is the ODM. The diagrams let you follow power rails, check charger and standby circuits, and trace signals when hunting a short. Verify that the LA number printed on the PCB matches exactly, since Compal reuses platforms across many models with different board variants.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 27 Aug 2022 | 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.