Hi，I have this old sony DA3300ES AVR which I use for my computer. Last Monday the sound just cut out while playing but there was no protection or power off. I did checked connections and speaks but still no sound. I even did hard rest but still the same. It turned on fine and speakers indicators also shows on the screen and the hear the click noise when I turn on the avr. Today I opened it up and saw that all 4 of the T6.24l 250v fuse were blown. I replaced them to see why and the first 2 immediately blown again after powering. What could be the issue because I tested the main diode connected to the fuse and it seems ok. Please what else could lead to this?
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