Lenovo B4400 Hardware Maintenance Manual page 60

Lenovo B4400 Hardware Maintenance Manual
Figure 14. Removal steps of base cover, power assembly and IO board (continued)
Remove two screws
arrow
Remove two screws
b
56
a
b
.
Step Screw (quantity)
c
M2 × 3 mm, flat-head, nylok-coated (2)
a
.
Step Screw (quantity)
d M2 × 6 mm, flat-head, nylok-coated (1)
. Remove the power assembly in the direction shown by
. Remove the IO board in the direction shown by arrow
1
1
2
2
1 1
Color Torque
Black 1.85 kgfcm
5
Color Torque
Black 1.85 kgfcm