Lenovo ThinkPad T420 Hardware Maintenance Manual - Page 112

Base cover assembly and DC-in connector cable - ultrabay

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1190 Base cover assembly and DC-in connector cable For access, remove these FRUs in order: • "1010 Battery pack" on page 67 • "1020 ExpressCard blank bezel" on page 68 • "1030 Serial Ultrabay Enhanced device or travel bezel" on page 69 • "1040 Hard disk drive (HDD) and solid state drive (SSD)" on page 70 • "1050 DIMM slot cover" on page 73 • "1070 PCI Express Mini Card for wireless WAN" on page 75 • "1080 Keyboard" on page 77 • "1110 PCI Express Mini Card for wireless LAN" on page 85 • "1120 Keyboard bezel assembly, FPC cable, and Bluethooth daughter card" on page 87 • "1150 Speaker assembly" on page 95 • "1160 LCD unit" on page 97 • "1170 Fan assembly" on page 101 Removal steps of base cover assembly and DC-in connector cable 1 1 1 1 1 Step 1 Screw (quantity) M2 × 8 mm, wafer-head, nylon-coated (5) Color Black Torque 0.181 Nm (1.85 kgfcm) 106 ThinkPad T420 and T420i Hardware Maintenance Manual

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1190 Base cover assembly and DC-in connector cable
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 67
•
“1020 ExpressCard blank bezel” on page 68
•
“1030 Serial Ultrabay Enhanced device or travel bezel” on page 69
•
“1040 Hard disk drive (HDD) and solid state drive (SSD)” on page 70
•
“1050 DIMM slot cover” on page 73
•
“1070 PCI Express Mini Card for wireless WAN” on page 75
•
“1080 Keyboard” on page 77
•
“1110 PCI Express Mini Card for wireless LAN” on page 85
•
“1120 Keyboard bezel assembly, FPC cable, and
Bluethooth
daughter card” on page 87
•
“1150 Speaker assembly” on page 95
•
“1160 LCD unit” on page 97
•
“1170 Fan assembly” on page 101
Removal steps of base cover assembly and DC-in connector cable
Step
Screw (quantity)
Color
Torque
1
M2 × 8 mm, wafer-head, nylon-coated (5)
Black
0.181 Nm
(1.85 kgfcm)
106
ThinkPad T420 and T420i Hardware Maintenance Manual