Lenovo Yoga S940-14IIL Schematic – Wistron 18777-1 Schematic 06/28/2021 by notebook Schematic for Lenovo Yoga S940-14II Laptop/Notebook. Wistron 18777-1 Mainboard. Tag: LS40IC MB 18777-1 Rev: SC Total Pages: 70 Format: PDF File Size: 2.38 $19.90 $9.90 – Add to Cart Checkout Added to cart