Lenovo IdeaPad Z475 Hardware Maintenance Manual page 57

Figure 10. Removal steps of system board
Z475: Remove three screws
direction shown by arrow
Z575: Remove five screws
direction shown by arrow
When installing: Make sure that all the connectors are attached firmly.
Step Screw (quantity)
a
M2.5 × 5 mm, flat-head, nylok-coated (3) (Z475)
M2 × 7 mm, flat-head, nylok-coated (5) (Z575)
a . Unplug the microphone connector in the
b
.
1
1
a . Unplug four microphone connectors in the
b .
2
2
2
1
1
1
2
Lenovo Z475/Z575
2
1
1
1
Color Torque
Black 2.5 kgfcm
Black 3.0 kgfcm
53