Apple A1419 iMac 27″ 820-00134-A Schematic & Boardview – 820-00134 Schematic & Boardview 11/03/2019 by notebook Schematic & Boardview iMac 27″ A1419. 820-00134 Mainboard. Title: J95 MLB SKL Part Number: 051-00321 / 820-00134 Format: PDF,BRD Total Pages: 96 File size: 2.05MB $15.00 $9.90 – Add to Cart Checkout Added to cart