An early-revision schematic for the Compal LA-3981P mainboard, marked R0.2 and supplied as a 637 KB RAR archive. Nothing in the name identifies the notebook model or brand, only the ODM board code. Pre-1.0 revisions are engineering drafts, so component values or net names can differ from the production board you have on the bench. Unpack it with WinRAR or 7-Zip and open the drawing in a PDF viewer to follow the power sequence, locate the charger and VRM stages and isolate a shorted rail. Match the silkscreen revision first.
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.