Gregg, sorry about the mistake, I saw "K" and immediately thought Seeburg -which does use Fusetrons in some older supply's.
Ron, blown fuses happen in each location at least once year.
Causes (remember, these are 200's)
-Jammed up coins that fall onto the coin switch supply lug as I remove the rejector.
-A-holes that actually force coins into the space between the bottom of the title page support and cover casting and which then work their way into the keyboard causing the same effect as below:
-A small piece of copper spring metal that breaks off the keyboard assembly and works it's way into a position where it bridges the "singles -EP" terminals in the keyboard itself and thus causes a direct short at the credit cancel point. This needn't be the case, but Seeburg made the wiring excessively complicated. It took me hours to finally track down this cause, but at least I don't have to swap out boxes any more when it happens. I disconnect them, unmount and shake upside down & sideways till something falls out.
-Backed up coins that jam the coin switch and burn out the coin coil. The coils are quite rugged, but I have has two that shorted. Lately I have been adding fuses in each box.
-Cancel-override contacts on the lower cam that weld together and produce a dead short. Again, a stupid Seeburg design. There is no good reason for this setup.
I don't know how you can use a 1 amp fuse on boxes where each draws 2-½ sending (3Wa's) and spikes at 3 amp during credit cancel. On -one 3W1- with no lights and a delay fuse -maybe.
You have better luck with fuses than I do
Rob
