Hi! I recently took mine apart (similar problem). When you remove the plastic back, on the left you will see the soldered side of the fuses. Mine had five of them. The PCB is silkscreened F1 through F5. When you look from the side, you can see they look more like cans, as previously mentioned. Mine were brown, about a 1/4″ high (~6.35 mm). It was easy to test them from the back. Hope this helps.