Hifonics Hercules H35 3000.1d

I have a Hifonics Hercules 35th Anniversary Edition model H35-3000.1d that would go into protection mode when too much current is supply and would stay solid green when little current is applied but no sound whatsoever. Installed into my car to see if it was just the power supply that im using to power the amp was making it go into protection but the lights would flash from red to green. Opened up the amp and everything looks fine. Nothing looks blown. Could anyone help me? Thanks.
 
i hope this is good quality..if not i'll try taking it again..thank you.
 

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