No need to remove the pcb just to test it. In the photo above, the two contacts are at the top and bottom. Use nice skinny probes to avoid shorting the top probe onto the face of the fuse (won't hurt anything, but also won't test it properly).

If the fuse is indeed bad as it appears to be, then the whole pcb will have to come out to remove it and solder on a new one.

I don't know where to get the exact same fuse from, but it has a part number on the top surface, and is a 2.5A fuse. At worst, one could just get a regular axial lead style of micro fuse and solder that upright onto the pads.

Cheers