I just bought a new XPS a/b pedal, but with no power supply. I picked up a cheap AC 9V 2000mA adapter and here is what happens:
It does power the JTV 59
But, the power light never comes on
The XLR & 1/4" lights work
But, no matter which of those is lit the signal is always coming out the 1/4"
So, bad pedal? Or, bad power supply that isn't allowing the pedal to reach its potential?