This Roland JC120 is smokin'

[christarak]

I'm hoping you can help me identify a couple of components on the output section of one of the channels of a JC120. (I never realised how many variations...

[Amapola]

Hi there,

I have a jc 120 which come with this schematics...



... and i find the ground wired to positive on...

[Version_6]

Howdy all, name's Six. First time poster, long time lurker. In between customer repairs I've been working on my own project, a 1979ish JC160 I picked up in...

[Tate]

I picked up a JC120 today, and the guy that sold it to me said it has a loud buzz. I bought it intending to fix it this week. I go it home, plugged it in,...

[sam98brown]

Hi, this issue has been discussed before, but my issue is slightly different.

I bought a brand new JC120 and was really happy when it arrived,...

[Brad707]

Hi, can anyone tell me whether it is possible to mod a JC120 and send channel 1 to power an external 2 x 12 cabinet, while channel 2 powers the inbuilt 2...