Compal schematic in PDF form covering two board numbers, LA-B992P and LA-B971P, revision 1.0, compressed in a 1.52 MB RAR archive. The LA- prefix is the standard Compal motherboard code, and the laptop brand is not given in the name. Two numbers in one document usually mean a main board plus a daughter or sister board. Use it to follow power sequencing, rail voltages and signal paths while diagnosing a fault. Check that your PCB label and revision match before trusting values.
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 @schematicslaptop. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 16 Jun 2022 | Open file on RM Schematics |
| @dtechbios | 17 Dec 2025 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | 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.