Compal LA-9431P mainboard schematic at revision 1.0, a 2.93 MB PDF with no host notebook model stated in the name. The LA- prefix marks a Compal-designed motherboard, a pattern found across several laptop brands built by this ODM. Repair work with it typically means following the always-on rails, the charger stage and CPU power, checking shorts on capacitors, and tracing signals between the EC and the chipset. Before trusting voltages or part references, compare the board number and revision on the PCB with the drawing.
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_esquemas. Enginerys does not host this file.
All sources (7)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @abgm_manutencao_esquemas | 14 Jul 2019 | Open file on RM Schematics |
| @hrtechno | 23 Jul 2021 | Open file on RM Schematics |
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 12 Oct 2022 | Open file on RM Schematics |
| @pkbiosbdv | 13 Aug 2025 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | Open file on RM Schematics |
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