Paradigm didn't supply schematics to these when I worked for a dealer but a friend asked me to see if I could fix his. I wasn't very optimistic but I said OK. There was a slight hum when it was turned on but there was no output of the input signal. If the shield of the rca cable was touched, the hum increased slightly. I thought the input rca jacks looked familiar from a repair I did years ago where there was no continuity from the shield to solder tab.. Some how the plate the shield of the rca jacks connect to separates from the solder tab. Without destroying the jack assy., it is impossible to see what breaks. Running a wire from the shield plate to the connection underneath the circuit board repaired the amp. Chuck
- posted
12 years ago