Lenovo MT 1951 Hardware Maintenance Manual page 111

For 15.0-in. LCD models:
Note: Red cable is the wireless WAN antenna cable (MAIN).
When installing: When routing the antenna cable, do not tense the cable. To do
so, the cable may get damaged by the hinge, and may cause a
broken wire.
Removing and replacing a FRU
1
2
ThinkPad T60/T60p
105