Hi folks, I've got one of the above units (the 3 switch version) in for a repair. It works for all of 10 minutes then cuts out/goes glitchy and really fuzzy (way more than it should, sounds like the speaker has gone).
I've been in touch with Tech 21 and had a lengthy hack and forth but I'm not getting much luck. I've found a schematic on this site so that's a start but the jacks need de-soldered to get the board out to inspect it. Do any of you have any ideas on what I should check when I do so? The blend seems to go between completely dead and the noises so I get the feeling it's that which is causing the issues
Any help would be much appreciated. Cheers