Lenovo ThinkPad T520 (English) User Guide - Page 148
Replacing the keyboard
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Replacing the keyboard Before you start, print these instructions. You can use the following procedures to replace the keyboard with a new one, available as an option. Prerequisites for the procedure 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. To replace the keyboard, do as follows. Removing the keyboard 1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait for a few minutes, till the inside of the computer cools, before you start the following procedures. 2. Close the computer display, and turn the computer over. 3. Remove the battery. For details, refer to the instructions in "Replacing the battery" on page 119. 4. Loosen the two screws on the memory slot cover (1), then remove the cover (2). 130 User Guide