Looks like several capacitors went bad. My bet would be that a rectifier shorted out letting raw ac (actually partially raw ac since probably one leg of a full wave went bad) which cooked the caps. Wonder if you heard a bad hum before it crapped out? Then the over current blew the fuse. Good thing too since otherwise the caps might have become rockets. (Were any missing or blew their tops?) If I'm right, the repair will involve replacing all the electrolytic caps in the receiver, along with the bad rectifier unit. Hopefully no electronics were fried.