User Manual

Keyboard
Prerequisite
Before you start, read Appendix A “Important safety information” on page 85 and print the following
instructions.
Replacement procedure
Notes:
• You might be instructed to slide the keyboard frame forward or backward in some of the following steps.
In this case, ensure that you do not press or hold the keys while sliding the keyboard frame. Otherwise,
the keyboard frame cannot be moved.
• Your keyboard might look different from the illustrations in this topic.
1. Disable the built-in battery. See “Disable Fast Startup and the built-in battery” on page 51.
2. Turn off the computer and disconnect the computer from ac power and all connected cables.
3. For T590 and P53s, loosen the screw that secures the keyboard.
66 T490, T590, P43s, and P53s User Guide