4-16 (E) ZRD-1/ZRD-25. Remove the six screws, then remove the UP-13 board and UC-1 board integrated block.6. Disconnect the two harnesses from the connectors (CN1507 and CN1509) on the UC-1 board.7. Remove the four screws, then remove the UP-13 board.8. Remove the four screws, then remove the UP bracket.9. Peel off the radiation sheet (FPGA).UP-13 board and UC-1 boardintegrated blockPSW3 ) 8UC-1 boardRadiation sheet (FPGA)HarnessesUP-13 boardUP bracketCN1507CN1509PSW3 ) 8PSW3 ) 8