Early schematic, revision R0.5, for the Compal LA-7221P laptop motherboard, compressed into a 1.71 MB RAR archive. Pre-production 0.x revisions may differ slightly from shipping boards, so confirm component positions and values on the real PCB. The name does not mention any laptop brand or model. After extraction, use the sheets to follow the adapter, charger and regulator chain, check power-good and enable signals, and read connector pinouts. Match the LA-7221P code on the board before relying on the diagram.
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.