After simply changing some rca connectors on my preamp, the 12V trigger seems to work in reverse, turning everything on when I turn the preamp off. Does the trigger put out a 12V signal when unit is turned on or does it cease to put out a 12V signal when preamp is turned on? Mine is putting out 12V at the trigger when preamp is turned off and ceasing to supply 12V when preamp is turned on.