Blown main fuses? Must have been a short circuit somewhere, then.
That sort of thing usually means something "burned". No sign of anything like that?
What's the present status? Same as given in your first post?
Meanwhile, do you think this machine has any mains voltage compensation on the input side? Has it been "adjusted" (incorrectly, perhaps) - or maybe it's automatic (and now faulty, jammed
etc.). Take a look around where the power comes into the machine.
Traditionally, the "line voltage adaptor" was usually found (circuit-wise) immediately after the main input fuses (and before the main auto-transformer).