Schematic for the Compal LA-4117P motherboard, revision 0.3, packed as a 1.21 MB RAR. Compal uses LA numbers on its boards, which appear in many laptop brands, but the name does not identify the model, so match the LA code on the PCB. The diagram helps trace power rails, follow the power-on sequence, check charger circuits and identify components around a short. Expect a PDF inside readable with any viewer. Early revisions like 0.3 may differ in details from production boards.
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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 27 Jan 2021 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 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.