Lenovo IdeaPad Y480 Hardware Maintenance Manual page 57

Figure 10. Removal steps of system board
Y580: Loosen three screws
the direction shown by arrows
a
When installing: Make sure that all the connectors are attached firmly.
Step Screw (quantity)
a
M2.5 × 5 mm, flat-head, nylok-coated (3)
. Unplug LCD, USB, Power, speaker connectors in
a
b
.
a
b
Lenovo Y480/Y580
a
b
Color Torque
Black 1.5 ~2.0 kgfcm
53