Remove The Power Board With Cable; Make Sure The Following Frus (Or Crus) Have Been Removed; Remove The Lower Case - Lenovo ThinkBook 14 G4 IAP Hardware Maintenance Manual

Figure 27. Disconnect the I/O board cable, the fingerprint board cable and the power board cable
Step 3. Remove one screw and then remove the I/O board with cable.
Figure 28. Remove the I/O board with cable
Screw specifications
M2.0 x L4.0
Go to
https://support.lenovo.com/partslookup
part:
I/O board with cable

Remove the power 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
Number of screws
1
to look up the Lenovo part number of the following replacement
.
Chapter 4 Removing a FRU or CRU
47