Schematic PDF for the Wistron LV530 project, board 17807-1M, covering Kaby Lake and Skylake (KBL/SKL) processor variants. The 17807 base follows Wistron's numbering, also seen on Lenovo V130 and V330 family boards, though this name states no brand. Use it to trace power rails, the charger and VRM circuits, and signal paths during no-power or no-boot diagnosis. Check the board number and CPU generation on your PCB, since sections differ between processor variants.
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 @cynetitsolution. Enginerys does not host this file.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.