IBM ThinkPad T40 series Hardware Maintenance Manual page 119

Removing and replacing a FRU
Note for sticking a label kit on the base cover
New base cover FRU is shipped with several kinds
of label kit. When you replace the base cover, you
need to stick a homologation label a which has
the same part no. with the label on the old base
cover (defective FRU) on the new base cover.
In some models, you also need to stick one or two
FCC labels b . Check the old base cover and if
there is one or two FCC leabels on it, find the same
one from the label kit and stick it on the new base
cover.
Stick the labels on the new base cover as shown in
this figure.
b
b
a
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ThinkPad T40, T40p, T41 Series