Lenovo 336655U Laptop User Manual


 
2. Reinstall the screw and tighten it.
3. Reinstall the battery. See “Replacing the battery” on page 63.
4. Turn the computer over again. Connect the ac power adapter and all cables.
Replacing a PCI Express Mini Card for wireless LAN connection
Before you start, print these instructions.
DANGER
During electrical storms, do not connect the cable to or disconnect it from the telephone outlet
on the wall.
DANGER
Electric current from power, telephone, and communication cables is hazardous. To avoid shock
hazard, disconnect the cables before opening the cover of this slot.
Attention: Before you start installing a PCI Express Mini Card, touch a metal table or a grounded metal
object. This action reduces any static electricity from your body. The static electricity could damage the card.
To replace the wireless LAN card, do the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to ve minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery. See “Replacing the battery” on page 63.
Chapter 6. Replacing devices 73