Circuit diagrams for the Compal LA-1121 motherboard, revision R1A, supplied as a 2.73 MB RAR archive. Compal marks its laptop boards with an LA- project code, and the revision suffix is normally printed near it on the PCB. Technicians use such a schematic to follow power sequencing, locate fuses and MOSFETs on each rail and work out where a missing voltage originates. A separate R1C set for the same board exists, so match the revision on your board before trusting part values or reference designators.
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.