Lenovo ThinkPad L420 Hardware Maintenance Manual page 97

• "1110 mSATA solid state drive" on page 73
• "1120 Palm rest assembly with cables" on page 75
• "1130 PCI Express Mini Card for wireless LAN" on page 78
• "1170 Keyboard" on page 83
• "1180 Keyboard bezel" on page 85
• "1190 LCD unit" on page 87
Removal steps of top shielding assembly
For ThinkPad L520 models:
Step Screw (quantity)
1
M2 × 3 mm, flat-headd, nylon-coated (3)
2
M2 × 5 mm, flat-head, nylon-coated (5)
For ThinkPad L420 and L421 models:
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
91