Question about a Panasonic deck

[BlackPearl]

I've had a Panasonic DFX-400U for probably going on two years now. Last week I was tryin to turn something down and I pushed a button. Now my sub doesn't put anything out, even though I have the sub volume on the deck turned up. Does anybody know anything about this? I've looked around online and haven't run across anything, figured I'd try here. :dunno:

[88accordalltheway]

read the manual.

is the amp still on or is it totally off?
if off, check:
power wires to the amp
Rca's going to the amp
Remote wire going to the amp(usually blue)
Wiring going to the sub from the amp

[BlackPearl]

Don't have a manual. Bought it off a guy I know and he had it for a while before that and had no idea where the manual was. I already checked all that other stuff you listed. The amp is on. All the connections are good. I'm just totally lost with this one.