I took it the front of the unit apart half I did not see any broken wires on the switches or pots including the selector switch. This one has me stumped.
The hi blend switch does affect the left channel for some reason
I did fry the tuner string while troubleshooting with my iron ...argh
I have the exact same issue I will try this fix it should be the same problem. ThanksWhew.... tried the AC setting and measured each side of L305(2,4) what is that a coil or transformer?
The readings were the same on each side so that was a positive. Replace C334 the night before so I hit C332
That was it
I will replace all the caps on the board.
Thank you Tom!