Remove The System Board, I/O Board And I/O Board Cables - Lenovo 14IAP7 Hardware Maintenance Manual

Figure 15. Remove the touchpad board cable
Go to
https://support.lenovo.com/partslookup
part:
Touchpad board cable

Remove the system board, I/O board and I/O board cables

Make sure the following FRUs (or CRUs) have been removed.
"Remove the rubber foot" on page 28
"Remove the lower case" on page 29
"Remove the battery pack" on page 30
"Remove the solid-state drive (SSD)" on page 30
"Remove the antenna module" on page 32
"Remove the heat sink" on page 32
"Remove the fans" on page 33
"Remove the speakers" on page 34
Step 1. Remove two pieces of tape.
Figure 16. Remove two pieces of tape
Step 2. Disconnect cables connected to the system board and I/O board.
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Hardware Maintenance Manual
to look up the Lenovo part number of the following replacement