If the international version is wired similar to the US version, parts of the line filter BEYOND the fuse but before the switch appear to have incinerated, possibly also charing the epoxy board enough to make it conductive carbon also. W12 is removed, as it should be for 240V mode. A lot of design review, special certified parts selection and final product safety certification is supposed to assure this NOT happening due to AC line connected component failure. It sometimes happens that parts fail in such a manner that they draw enough current to overheat, but not enough to blow fuses or circuit breakers. The metallized capacitors in the filter are supposed to self heal in case of internal shorts and not overheat. The filter inductors have stringent insulation and air gap requirements to make shorts and overheating very unlikely. I'm curious...what actual current rating is stamped on the fuse, and did it blow or melt? Did any other appliances or light bulbs fail shortly thereafter indicating a possible lightning strike?