Operation Manual

8. Route the cables as shown and attach the connector of the speaker assembly.
9. Reinstall the bottom cover.
10. Turn the computer over. Connect the ac power adapter and all cables to the computer.
Replacing the coin-cell battery
Before you start, read Appendix B “Important safety information” on page 103 and print the following
instructions.
DANGER
If the coin-cell battery is incorrectly replaced, there is danger of an explosion. The coin-cell battery
contains a small amount of harmful substance. To avoid possible injury:
• Replace only with a battery of the type recommended by Lenovo.
• Keep the battery away from fire.
• Do not expose it to excessive heat.
• Do not expose it to water or rain.
• Do not short-circuit it.
• Do not drop, crush, puncture the battery, or make it subject to strong forces. Battery abuse or
mishandling can cause the battery to overheat, which can cause gasses or flame to "vent" from
the battery or coin-cell battery.
To replace the coin-cell battery:
1. Disable the built-in battery. See “Disabling the built-in battery” on page 88.
2. Ensure that the computer is turned off and disconnected from ac power and all cables.
3. Close the computer display and turn the computer over.
Chapter 9. Replacing devices 95