Jeff41954

My brother gave me a Klipsch LF-10 Subwoofer and it has a problem in the Auto-On circuit. If I switch the unit to On, then to Auto, it stays on even if there is no signal present. If I switch the unit to Off, then to Auto, it stays off even if there is a signal present. The final twist: sometimes it works perfectly, but not often. The switch itself feels a little sloppy, so I plan to open the unit up and check the switch operation with a multimeter. Does anyone have any other suggestions? Are schematics available? For now, I just leave the unit on at all times. Thanks in advance, Jeff