Schematic PDF, 1.16 MB, named Tin Yat 80A. Tin Yat appears to be a project code name, with 80A as a variant or revision marker, though the name does not state a brand.

Lenovo schematic labelled only with the code 80A, which gives little to identify the exact model, board number or revision.

Lenovo schematic in PDF form, 1.16 MB, named only with the code 80A. That token gives no clear model, board number or revision, so open the document and read its title…

Lenovo schematic in PDF form, labelled only with the code 80A, so the exact model and board number cannot be confirmed from the name.

PDF schematic titled Tin Yat 80A, which appears to be a project or platform code name rather than a retail model; the name gives no brand, board number or revision.

PDF schematic, 1.16 MB, named Tin Yat 80A; the name gives no brand, device type or board number, so the target hardware must be confirmed from the drawing itself.

PDF datasheet for the SGH80N60UFD, an IGBT rated in the file name at 80 A and 600 V. Parts of this kind are common in welding inverters, induction cookers, motor drives…