Compal LA-1991 motherboard schematics, revision R1A, in a 945 KB RAR archive. R1A is a typical Compal-style revision mark for a release version. No laptop brand, model or chipset is given in the name. Compal acts as an ODM, and the LA- code is the dependable key for matching boards. With the drawing extracted you can follow supply rails, check signal paths between chips and pinpoint components on no-power or no-display faults. Make sure the PCB silkscreen reads LA-1991 with a matching revision before relying on it.
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.