Dell Latitude 7424 Rugged Extreme Service Manual

Removing the Left I/O daughterboard

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. Batteries
   2. Bottom chassis cover
   3. PCIe Heatsink fan assembly
   4. Battery bay
3. Peel off the inductive tape [1] on the left I/O daughterboard FPC connection, disconnect it from the system board [2].
4. Pass the FPC cable through the wall bridge [3] and disconnect the speaker cable from the left I/O daughterboard [4].
   
5. Loosen the two 'M2*5' screws [1] and lift the Left I/O daughterboard from the computer [2].