Boss DA-2 no signal

[secretpolice]

My DA-2 adaptive distortion always worked well, and a few months ago it quit sending signal out the output jack. At first it just sent a hum in place of the actual signal, and now it is just silent. I still get the LED to turn on when plugged in and connected to a pedal chain.

Tried my hand with testing but sadly I don't know what else I can do without taking it to someone unless it's merely one of the jacks. Anybody have any experience with this in Boss pedals?

Thanks