Lenovo ThinkPad T420 Hardware Maintenance Manual - Page 107
Fan assembly
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1170 Fan assembly For access, remove these FRUs in order: • "1010 Battery pack" on page 67 • "1020 ExpressCard blank bezel" on page 68 • "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 Removal steps of fan assembly Note: Loosen the screws 1a to 1d in order, but do not remove them. For Discrete Graphics models: 2 1a 1d 1c 1b For Integreted Graphics models: Chapter 8. Removing and replacing a FRU 101
1170 Fan assembly
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 67
•
“1020 ExpressCard blank bezel” on page 68
•
“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
Removal steps of fan assembly
Note:
Loosen the screws
1a
to
1d
in order, but do not remove them.
For Discrete Graphics models
:
1a
2
1d
1c
1b
For Integreted Graphics models
:
Chapter 8
.
Removing and replacing a FRU
101