A fuse is what it is and is not a required part for operation. I fear you may be in trouble as what you wrote makes it sound as if you don't work in this field and given the LETHAL VOLTAGES you are exposed to I suggest you get it fixed instead.
Have this Technics SA-GX350 here from a yard-sale.
I downloaded the manual, which is always nice. Thanks Panasonic!
This manual shows the fuse being in the power cord, while this cord that came with it has no fuse. I guess this is the reason it wasn't working for them either. Get power, but just a barely audible noise from the left front speaker at full volumes, while no noise from right speaker. (Difficult to take off case b/c the screws are tight)...
Do you think the problem is because there is no 5-amp fuse in the plug?
I don't know of 5-amp plugs, but I could search power strips.