IBM ThinkPad X20 Hardware Maintenance Manual page 67

When installing: When installing the keyboard, do as
follows:
1. Install the new keyboard, following the directions in the
figure. Make sure that the keyboard edges, shown in
the figure as (A), (B), (C), (D)and (E), are under the
frame.
A
B
C
Chapter 3. ThinkPad X20, X21, X22, X23
D
E
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