I have a new to me 1993 Cobalt 206. It has a Lowrance series 3000 #3200 computer sonar. I've tried Lowrance, googled every way i can think of to get a manual for this old thing & "NOTHING". Hoping someone out there used one in the past or maybe still has an operating one that wouldn't mind sharing their knowledge of how to operate. Maybe someone even has a manual they'd copy and send to me. Thanks