Doepfer

Hello group,
    I've got this A-111 I got used via AH some months ago.  it works  
according to what I'd expect except that the range switch has an  
anomaly.  Set all the way counterclockwise, it puts out at LFO  
frequencies, but for the top two positions it reverts back to LFO. It  
has ten positions also, not eight.  At the high end, nothing above  
maybe 8000 cps is available.  And in the low end, it doesn't go all  
the way down to less than 1 cps like other oscillators, but maybe to  
five or six cps only.   Can anybody diagnose this?

David Westling