Remove The System Board - Lenovo 15ALC05 Hardware Maintenance Manual

Figure 53. Disconnect the speaker cable from the system board
Step 2. Peel off the tape and then remove the speakers.
Figure 54. Remove the speakers
Go to
https://support.lenovo.com/partslookup
parts:
Speakers

Remove the system board

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 52
"Remove the battery pack" on page 53
"Remove the heat sink" on page 55
"Remove the fan" on page 56
Step 1. Disconnect cables connected to the system board.
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Hardware Maintenance Manual
to look up the Lenovo part number of the following replacement