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Step 25: Nylon Washers
– Place two #4 nylon washers on each of the threaded rods, (the washer in the kits
may be black). Put a small amount of heatsink compound in the large hole in the center of the heat spreader.
If you haven’t assembled the AN1819 board, now would be a good time to do so.
Apply a small amount of heatsink compound to R23 on the AN1819 board.