There is a little button on the front of the camera, you push that and turn the little ring around the lens then you can pull the front off.
You need to get in there and measure that componet. Use the continuity mode, on the meter and test that. There are 2 copper pads you touch with the probes on your meter to check if the fuse is still good.
Okay, so assume the fuse is not good. Do I buy a new fuse or solder the one I have?
Canon S2 IS
52mm Lensmate adapter
52mm Hoya UV filter