Compal LA-1851 motherboard schematic, revision 0.5, a 1.20 MB PDF noted as a second copy of the same document. The name gives just the Compal board code and revision, with no brand, chipset or model listed. This older design can be traced in any PDF viewer to check power rails, follow signals from the charger to the CPU supply, locate the BIOS chip and embedded controller, and find the part responsible for a short. Confirm the LA number and revision on the PCB match before trusting 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 (16)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 5 Sept 2017 | Open file on RM Schematics |
| @freeschematicdiagram | 30 Apr 2019 | Open file on RM Schematics |
| @LaptopsBoardview | 4 Jun 2019 | Open file on RM Schematics |
| @abgm_manutencao_esquemas | 27 Jul 2019 | Open file on RM Schematics |
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @alischematics | 6 Jan 2023 | Open file on RM Schematics |
| @generalbios | 20 Oct 2023 | Open file on RM Schematics |
| @generalbios | 29 Oct 2023 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @generalbios | 15 Dec 2024 | 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 |
| @schematics_bios | 13 Aug 2026 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.