PJS

I didn't realise you weren't getting any dry either. I would sort that one out first, mostly because it is the easier signal path...

You need to adjust the trim control until you get sound out. There is a pretty small window where it works. From memory pin 7 needs to...

Check continuity on the switch. It doesn't really take all that much heat to damage a stomp switch

I know this won't help you, but someone else may get some use. I have fixed a surprising number of older (and even not so old) things...