PDF schematic of Compal motherboard LA-7401P, revision 1.0, archived in RAR format at 1.10 MB. The name does not mention the laptop model, but LA-numbered boards are Compal designs supplied to various brands. With this document you can trace charger and system power rails, check EC and BIOS chip connections, follow power-good and reset signals, and find the components responsible for a short or missing voltage. Confirm that the number and revision silkscreened on the PCB match before relying on part values.
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 | 18 Mar 2024 | 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.