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FS1 is possibly a "Polyswitch" style solid state fuse, a PTC resistor. They have that case style with the notched ends.
Does it read as a low value when you test it with a multimeter? It should be low ohms (single digits) or fractions of an ohm.
That style is normally self-resetting, they go back to normal when the overload is removed.
Some laptops do have a conventional miniature wire fuse in the power input circuit. The ones I've seen in that application look like a miniature axial resistor.