Dell U4323QE UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 9

5. Disassembly and Assembly Procedures Tear off 4pcs rubbers , then use a Philips-head screwdriver to remove 2pcs screws for unlocking the small bracket with T-Con board, then remove the S13 small bracket, then release the LED key cable by tearing off tapes on the back of the cable. (No.1~2 Screw size= M3x0.5x4, Torque=3~5kgfxcm) Use a Philips-head screwdriver to remove 9pcs screws for unlocking power board and interface S16 board with the bracket. (No.1 screw size=M4x8, Torque=6±0.5kgfxcm; No.2~8 screw size=M3x7.5, Torque=6±0.5kgfxcm) 8 4 2 6 2 1 Lift up the middle frame and put it into a fixture, tear S14 off the maylar tape for releasing the LED key board away from the middle frame. 7 5 1 3 Remove the circuit boards from the bracket S17 chassis module carefully, and then disconnect all of the cables. Remove 2pcs shading tape on the left and right side S15 of the panel corner, then remove 27pcs acetate tapes on the specific positions of the back of panel.