Alright, I wouldn't come to you guys unless I couldn't figure it out myself.

Basically, the story is my dad got this amp from his friend for free. He said that his son may have done something by plugging the "wrong" type of "something" into it. Haha.

I've made sure its not the speakers, as it has an extension cab output. So I'm pretty sure its the board. Nothing looks damaged, the one fuse we found was not blown, and its not the input that is blown because the tuner on the amp still works. As I said before, no sound whatsoever. And its definitely not my guitar, haha.
2003 Fender MIM Strat
2008 Ibanez AEG20E A/E Cutaway
2011 Epiphone Les Paul Traditional Pro
Epiphone Valve Jr. Halfstack BitMo Trio Modded
60W All Tube Egnater Renegade Head and Cab.