New Life Games Tech Forums

I cant seem to figure this out.  I am not very familiar with Sigma machines.  I have a SG300 with a mars acceptor.  The acceptor works fine but I am removing it because the software is very outdated and there is no dickbill (I have posted requests on the classifieds).  I have a few WBA13's with ID003 software.  These are known working units.  When I plug it in to the Sigma it comes up with a bill validator error.  The DBV does not power up or try to self test.  The two leds on the board below the dbv do not flash as they would with the mars.

Is this "drop in" replacement possible or do I need to make some other change?  I checked the manual and there is no where to configure for the different DBV types and other members have told me the ID003 is the correct software.