onkyo amp txsv717 not working(protect mode)

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I have this model amp, it first showed protect mode, even turning it up a little, so I waited the next day to play system and it would not come on at all, the power shows it as working but nothing is showing on the display panel, I am not getting no sound or nothing. What could the problem be? A fuse or something blown, is it worth me getting fixed?
 
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