by greybeard » Fri Oct 30, 2009 1:03 am
There's a (green?) LED marked SIG - does this light when you play? If not, the effects processor is not receiving your guitar signal. Check the inputs.
Sorry, if this sounds childish, but you are pressing the effects knob to initiate the effect, aren't you?
The AUX B knob is turned up, I assume?
Are you using AUX B for anything? That would disable the internal effects.