Schematic in PDF for a motherboard named GPC50 MB, Compal board LA-J643P revision 1.0, in a 3.20 MB rar archive. LA-numbers are the Compal ODM pattern, found in laptops from several brands. The document shows rails, signal paths, power sequencing and connector pinouts, helping a technician determine where a voltage should appear or which part shorts a line. Before relying on it, read the board number and revision printed on the PCB and make sure both agree, as part designators may shift between revisions.
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 | 24 Jul 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 15 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.