Search found 1 match
- Tue Jan 19, 2021 6:18 pm
- Forum: Technical Discussion
- Topic: JCM900 4100 IC supply problem
- Replies: 1
- Views: 384
JCM900 4100 IC supply problem
Hello! Playing my new acquired JCM900 I've realized that when I strike a chord on the guitar, using the high gain channel, the red light on the switch dims. I've opened the amp and monitored the dual voltage supply for the IC, to find out that when I keep the channel B gain control at 12 and play th...