Lenovo ThinkPad X230 Tablet - Manual (Page 94)

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Disconnect the DC-in connector and the Tablet Digitizer Pen switch connector from the system board.
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When installing: Ensure that the connectors are attached firmly to the system board.
Applying labels to the base cover:
The new base cover FRU is shipped with a kit containing labels of several kinds. Apply those labels listed
when you replace the base cover.
2 FCC label 5 Machine type and serial number label
Note: If there are two FCC labels on the base cover, apply both to the new base cover.
For the labels which are not shipped with the new base cover, peel them off from the old base cover, and
adhere them to the new one.
Note: If the Windows Certificate of Authentication (COA) label is attached to a part that is replaced, return
the old part with the label attached to the customer, or provide a letter to the customer stating what the label
was originally on the computer and what the label part number, serial number, and product key were.
The following illustration shows the location of each label.
88 Hardware Maintenance Manual