Hey all, there is some play with the mic gain pot. When it’s pushed inward a little, the volume gets louder, without rotating it. Maybe it’s a solder joint problem but I haven’t found a repair manual. I gig with this thing 7 nights a week so I don’t want to take it to my repair guy; it will take him weeks to place it on his bench. He’s that busy. I don’t want to start trying to open it without a road map of sorts. Any ideas on where to find a repair manual or has anyone experienced this issue and fixed it themselves?