This amp is stuck in protection mode. Heres the voltages i have
U18
1:0
2:0
3:0
4:-9.89
5:-0.55
6:0.59
7:-8.60
8:9.89
U11
1:0
2: 0
3:-0.03
4:-9.89
5:0
6:0
7:-0.07
8:-0.22
U21
1:-8.60
2:7.96
3:-9.01
4:-9.89
5:5.02
6:-7.54
7:8.53
8:9.89
Any of thoose appear to be defective?