A1418 21.5″ Late 2013 820-3482 Schematic & Boardview 09/07/2017 by notebook Schematic & Boardview for A1418 21.5″ 2013, 820-3482 mainboard. Title: J16 MLB SCHEMATIC Part Number: 051-9889 / 820-3482 Total Pages: 97 File size: 2.50MB Format: PDF & BRD (TLink) Price: $30 $19.90 $9.90 – Add to Cart Checkout Added to cart