Compal LA-4681P schematic at engineering revision R0.4, stored in a 1.09 MB RAR archive. Since R0.4 predates the usual R1.0 release, some details may differ from production boards, so check the revision silkscreened on the PCB. No brand or model is named, only Compal's LA board number. After extracting, open the PDF to trace power rails, check the regulator and charger stages, identify parts by designator and locate test points while chasing shorts or missing voltages.
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.