I had a weird experience with my sub last night. I popped in SW EP3, and it took me all of about 5 seconds into the opening battle scene to realize I had no subwoofer signal.
I checked the power light on the sub and it was both green & on, unplugged and replugged sub power & RCA cable, unplugged from surge protector and replugged....all connections good, but still no sub output. I tried to run test tones, and nothing.....no subwoofer detected. Both a light and the sub are connected to the same surge protector, and both had power, so everything checked out ok, but no sub output.
I checked the subwoofer fuse, and it was ok, unplugged and replugged surge protector, and everything was still ok because both the light and sub had power. I ran test tones again, and the sub was working again.
Weird, eh??