In most cases, the purpose of a large fuse would be to prevent
a fire, not to protect the electronic components.

wrote:

With my understanding in electricals, a fuse is supposed to the protect
the circuitry. So why in the world do you need to replace the entire
assembly if just the fuse is blown. I went to the radio shack and
bought a 10 amp fuse, soldered it in, ran the test again, same failure.