Hi @macdee ,
Was the original fuse blown then?
The receiver may be in “protection mode” due to a fault condition.
''With the power totally disconnected from the receiver'', check that the speaker wiring to the receiver is OK and that there are no short circuits between the wiring connections at either end, speaker or receiver or even from the speaker cable wires at the receiver end to the case of the receiver.
''With the power totally disconnected from the receiver'', disconnect all the speaker cables from the receiver, reconnect the power to the receiver, switch on the power outlet (if this is the case where you are) and check if the receiver switches on OK.
If it still doesn’t switch on, there is a fault in the receiver itself.
Given that you gave yourself a shock when replacing the fuse, I am guessing that you haven’t got much experience in fault finding in mains powered electronic equipment and as hazardous, (even lethal) voltages may be involved when testing for the problem, I suggest that you contact a reputable, professional audio electronics repair service and ask for a quote to repair the receiver.