Receiver Shutting Off

I have an Aiwa receiver that is probably 3 years old. I was playing Splinter Cell and when a grenade went off, my receiver shut off. I tried it with movies and whenever it suddenly gets really loud, it shuts off. I have it plugged into a power strip, with a tv, dvd player and laptop. I was thinking maybe too much power was being drawn from the outlet or something, but the DVD player and TV stay on. Any help would be great, thanks!