Hey Roly,
I finally got a chance to sit with the jc-120's. I inserted a guitar cable into the main out jacks and to my amazement, it worked. Both channels are now working. However, it seems to have developed a new problem(I don't think these amps I got from my friends closed studio got much love). It is making a loud hum(B nat. if my guitar is in tune) that gets louder when I turn the volume up. It turns into a full blown motorboating sound when it gets past half volume. It does not happen when I plug into channel 2 and turn up channel 2. But the general low hum remains.
I'm hoping to get a look at the other jc-120 this week. I appreciate all your help.
Scratchcoat
I finally got a chance to sit with the jc-120's. I inserted a guitar cable into the main out jacks and to my amazement, it worked. Both channels are now working. However, it seems to have developed a new problem(I don't think these amps I got from my friends closed studio got much love). It is making a loud hum(B nat. if my guitar is in tune) that gets louder when I turn the volume up. It turns into a full blown motorboating sound when it gets past half volume. It does not happen when I plug into channel 2 and turn up channel 2. But the general low hum remains.
I'm hoping to get a look at the other jc-120 this week. I appreciate all your help.
Scratchcoat