RAR archive holding PDF schematics for the Compal LA-9851P motherboard, about 730 KB compressed. The name gives no laptop model, revision or chipset, so open the archive and read the title block to confirm what is inside. Compal uses the LA-xxxxP pattern for boards it manufactures for many brands. Once extracted, any PDF viewer will show the circuit pages for tracing power rails, finding where a signal goes and checking component values. Compare the board number and revision on the PCB with the drawing before working from 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 @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 | 18 Jan 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 18 Jul 2026 | 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.