Compal LA-1691 notebook motherboard schematic at revision 0.4, a 981 KB PDF. The name gives only the ODM board number and revision; brand and model are not stated. Compal uses LA-prefixed codes for its board designs, which appear in laptops sold under different names, and early revisions may differ slightly from production boards. Use the document to follow power rails, check enable signals and find the parts to measure when a section is dead, after matching the board code printed on the PCB.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.