Circuit diagram for the Compal LA-1901 board, revision R1.0, stored in a 1.28 MB RAR file. A later R3.0 version of this board also exists, so read the revision printed on the PCB to pick the right document. No laptop model or chipset is stated. Compal is an ODM, and LA- numbers are its board identifiers across various brands. The sheets support tracing power rails, following signals and locating components when fixing no-power or no-boot faults. Open it with a RAR extractor.
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.