Remove The Speakers - Lenovo Thinkbook Series Hardware Maintenance Manual

Figure 8. Disconnect the coin-cell battery cable and remove the coin-cell battery
Go to
https://support.lenovo.com/partslookup
replacement part:
Coin-cell battery

Remove the speakers

Make sure the following FRU (CRU) has been removed:
"Remove the lower case" on page 28
Step 1. Disconnect the battery pack cable.
Attention: Do not pull the cable. Use your fingernail to disconnect the cable.
Figure 9. Disconnect the battery pack cable
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Lenovo Thinkbook series Hardware Maintenance Manual
to look up the Lenovo part numbers of the following