Fixing a Roland JC120 with Loose Input Jacks and No Effects

Here's how I fix a Roland JC 120 from 1984. This is the 5th generation model with plastic corners, bright switches in each channel, and a switch for the effects rather than a knob.

[@acecomet]

Speed and dept only work on vibrato mode. Chorus is fix setting on/off only. I got the same amp 1982

[@hoodtube7920]

Hello mate, do you know which schematic is the right one for this? I think I've got the same amp, it looks the same inside but could never find the exact one for it.

[@Davdroide]

Do you know if the line outputs are balanced ((TRS)

[@celissebearce1557]

*Promo SM* 👀