Compal LA-4091P motherboard schematic, revision 1.0, under project code JBK00. The name describes it as a consumer AMD UMA design, meaning an AMD platform with integrated graphics and no discrete GPU. The 1.04 MB PDF does not name the laptop brand. Compal numbers its boards LA-xxxxP and builds them for several brands. Use it to trace power rails, check the CPU and chipset supply circuits and locate shorted components. Make sure the PCB code and revision match before relying on part 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 @notebookschematic. Enginerys does not host this file.
All sources (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @notebookschematic | 19 Jul 2020 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 28 Apr 2025 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Sept 2025 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
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