Fixing Receiver - Confused Where to Begin

Could be shorted output transistors, may be worth removing them then trying again. Would definitely build a dim bulb tester it's cheap and easy and can limit the damage done each time you try a new fuse. This seems like a cheap way to learn a few repair skills a s the value of the receiver is low and there is not much at stake.
 
When you plugged it in after replacing the fuse, the power switch was in the off position?
I'm not sure how to describe the power switch. It's one of those buttons that you press but comes back to place. It's unlike the buttons on vintage receivers, which you press and then stay depressed. Does this make sense?

In the past when the receiver was working, I would plug it in the wall, hear a clicking sound, then push the power button to turn it on. I can't remember if I heard the click or not when I tested out the new fuse yesterday.

Could be shorted output transistors, may be worth removing them then trying again. Would definitely build a dim bulb tester it's cheap and easy and can limit the damage done each time you try a new fuse. This seems like a cheap way to learn a few repair skills a s the value of the receiver is low and there is not much at stake.
I will definitely look into that when I have more time.

I took a closer look at the power cord, and it says "7A 125V". Does this have any importance? It's a cord that looks just like this:http://ecx.images-amazon.com/images/I/71B-5EZcj8L._SL1500_.jpg
 
I would look closely at the speaker connectors, generally on the rear. ANY small fragment of speaker wire could be shorting out. But also check at the speakers too as it can happen on that end also.

Others here will know much more than me but if the receiver had only gentle use then an inadvertent short could easily happen. Even moving it to dust, the speaker wire threads can fray.
 
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