Remove The I/O Board With Cable - Lenovo ThinkBook 14 G4 IAP Hardware Maintenance Manual

I/O bracket (right)

Remove the I/O board with cable

Make sure the following FRUs (or CRUs) have been removed.
"Remove the lower case" on page 34
"Remove the battery pack" on page 35
"Remove the fan" on page 41
"Remove the CMOS battery" on page 44
"Remove the I/O bracket (right)" on page 45
Step 1. Remove three screws and then open the hinge.
Figure 26. Open the hinge
Screw specifications
M2.5 x L5.5
Step 2. Disconnect the I/O board cable from the system board. Then, disconnect the fingerprint board
cable and the power board cable from the I/O board.
46
Hardware Maintenance Manual
Number of screws
3