Remove The Audio Board - Lenovo 14ADA05 Hardware Maintenance Manual

Figure 18. Remove three screws remove the system board
Screw specifications
M2 x L2.5
Go to
https://support.lenovo.com/partslookup
part:
System board

Remove the audio board

Make sure the following FRU (or CRU) have been removed.
"Remove the lower case" on page 28
Step 1. Disconnect the battery pack cable from the system board.
Attention: Do not pull the cable. Use your fingernail to disconnect the cable.
Number of screws
3
to look up the Lenovo part number of the following replacement
.
Chapter 4 Removing a FRU or CRU
39