Lenovo L421 Laptop User Manual


 
Table 23. Removal steps of Bluetooth daughter card
Step Screw (quantity) Color
Torque
1
M2 × 3 mm, at-head, nylon-coated (1)
Black 0.181 Nm
(1.85 kgfcm)
When installing: Make sure that the connector on bottom side of the card is attached rmly to the system board.
1160 Media Card Reader slot board and Media Card Reader cable
assembly
For access, remove these FRUs in order:
“1010 Battery pack” on page 57
“1020 ExpressCard blank bezel and Media Card blank bezel” on page 58
“1030 Optical drive or travel cover” on page 60
“1090 SIM slot cover” on page 69
“1120 Palm rest assembly with cables” on page 74
Chapter 8. Removing and replacing a FRU 81