GPU Manufacturers will never give Users or Customers a GPU schematic. That is not for public viewing.
Best thing to do is try to locate another trashed or broken GPU card that uses the same components and canobalize it. Most likely any 6000 Series GPU card will have the same electronic components.
But the best advice I can give is send it to a Computer Repair center and have them repair for you. Ask Sapphire how much it would cost to repair your GPU Card.
Since the resistors have been broken off that will automatically void the Sapphire Warranty but they can still repair the GPU but will charge you.
Since that is a GPU card that cost in excess of $1000.00 it would be economical to pay to have it repaired.