Lenovo B5400 Touch Hardware Maintenance Manual page 58

Lenovo B5400/M5400/M5400 Touch Hardware Maintenance Manual
Figure 11. Removal steps of system board (continued)
Disconnect the two connectors in the direction shown by arrows
screw
54
and remove the screws
2
Step Screw (quantity)
M2 × 4 mm, flat-head, nylok-coated (3)
3
MB to BASE & CRT BKT to MB to BASE
.
3
. Loosen the
1
Color Torque
Black 1.85+/-0.15 kgf*cm