Compal LA-9431P mainboard schematic, revision 1.0, compressed into a 1.44 MB RAR file. The name lists no laptop brand, model or chipset, so match the LA-9431P code printed on the PCB. Revision 1.0 typically corresponds to production boards. After extraction, the diagram helps a technician trace the charger and regulator circuits, follow EC and power-on signals, locate the BIOS flash chip and check which component sits on a shorted rail. Verify the revision 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 @abgm_manutencao_bios. 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 | |
|---|---|---|
| @abgm_manutencao_bios | 10 Jul 2019 | Open file on RM Schematics |
| @abgm_manutencao_esquemas | 14 Jul 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 1 Oct 2019 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 24 Feb 2021 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 2 May 2021 | 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.