Removal steps of the coin-cell battery
When installing:
Ensure that the connector of the coin-cell battery is attached firmly.
1110 Speaker assembly
Note: Before you start the servicing, disable the built-in battery. See "Disabling the built-in battery" on page
64.
For access, remove these FRUs in order:
• "1010 Removable battery" on page 64
• "1030 Base cover assembly" on page 65
Removal steps of the speaker assembly
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T480 Hardware Maintenance Manual