Go to
https://support.lenovo.com/partslookup
replacement part:
Coin-cell battery holder
Power board
Power board cable
Remove the upper case (with keyboard)
Make sure the following FRUs (CRUs) have been removed.
"Remove the lower case" on page 28
"Remove the system board" on page 44
Step 1.
Remove the cable from the hooks.
Figure 36. Remove the cable from the hooks
Step 2.
Remove six screws. Then, rotate the upper case (with keyboard) to an angle larger than 270
degrees.
48
Yoga 7 (14", 7) and Yoga 7i (14", 7) Hardware Maintenance Manual
to look up the Lenovo part numbers of the following