Lenovo ThinkPad S431 Hardware Maintenance Manual page 89

Removal s"eps of a"dio, HDMI, and USB s"b card
1. Remove "he screws.
S"ep Screw (q"an"i"y)
1
M2.5 × 4 mm, wafer-head, nylon-coa"ed (2)
2
M2 × 4 mm, wafer-head, nylon-coa"ed (1)
2. Open "he keyboard bezel several inches
1
2
1
3 .
3
Color Torq"e
Black 0.196 Nm
(2.00 kgf-cm)
Black 0.196 Nm
(2.00 kgf-cm)
.
Chap"er 9 Removing or replacing a FRU
83