The +48V LED, -17V LED,
+17V LED and the +12V
LED are
monitoring the
correct
function of these
voltages. If any of these
voltages is not available or
low powered, the according
LED will go off.
The fail LED is monitoring if one of
the XLR outputs, except +12V on
PIN 4, is not correct. An activated
fail-LED always has a full powered
fan as a result.
6
Ground-Lift
switch
Mains fuse
Power on/off