Lenovo B490 Schematic – Wistron LB59A Schematic 06/08/2017 by notebook Schematic for Lenovo B490 – Wistron LB59A motherboard. Project Code: 48.4XB01.011 PCB P/N: 12209-1 OEM: Wistron Corporation Rev: -1 Format: PDF Total Pages: 102 File size: 1.82MB Price: $10 $10.00 $9.90 – Add to Cart Checkout Added to cart