I/O board
Remove the Kensington lock
Make sure the following FRU (or CRU) has been removed.
“Remove the lower case” on page 50
Step 1. Disconnect the battery pack cable from the system board.
Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.
Step 2. Remove two screws and then remove the Kensington lock.
Figure 55. Remove the Kensington lock
Screw specifications Number of screws
M2 x L7 2
Go to
https://support.lenovo.com/partslookup to look up the Lenovo part number of the following replacement
part:
Kensington lock
Remove the RTC battery
Make sure the following FRUs (or CRUs) have been removed.
“Remove the lower case” on page 50
“Remove the battery pack” on page 53
Step 1. Disconnect the touch pad cable and the RTC battery cable from the system board. Remove the
RTC battery.
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Hardware Maintenance Manual