Lenovo IdeaPad S540-14IML Hardware Maintenance Manual page 55

"Remove the speakers" on page 43
"Remove the fingerprint board" on page 44
"Remove the touchpad assembly" on page 46
Step 1. Disconnect the cable.
Figure 35. Disconnect the cable
Step 2. Remove the 3 screws.
Figure 36. Remove the 3 screws
Screw specifications
M2.0 x 3
Step 3. Remove the system board.
Number of screws
3
.
Chapter 4 Removing a FRU or CRU
49