HP Pavilion 14 / 15 / 17-AB Series Schematic – Quanta X21 Schematic 12/21/2017 by notebook Schematic for HP Pavilion 14-AB, 15-AB, 17-AB Series laptop/notebook, Quanta X21 mainboard. MB Tag: DAX21MB6D0 Rev: 1A Format: PDF Total Pages: 43 File size: 1.34MB $9.99 $9.90 – Add to Cart Checkout Added to cart