Disklavier

Carol,
     I have a MX100A with a DSR 1 and a DCD 1 connected to it.  Am I correct 
in understanding that with the above configuration I only need the DCD 1 
PIANOSMART UPDATE (software for the DSR 1 and the DCD 1) and MIDI CABLE?

    I got confused when you talked about a new control board.  With my above 
configuration I understand that I would NOT need a new control board because I 
have a DSR 1.  Is that CORRECT?  Thanks for the help.

Frank