Copied from 1053249 on 02/26/2010
Quantum Main Control Board BOM1054014rvA.xls for P2 build and contains raw board Q25028-004.
Revised main control board BOM105014rvB.xls for the Demo build and contains new ferrite bead for EMC and contains Main board Q25028-006.
Assembly 1058734 is the top assembly that includes the heatsink and associated hardware.  This is the sellable/stocked part.

1/7/2020: above notes are outdated. see below.

Top level assembly PN 1058734 is changed to 1076761. see ECM #1100012798. 
This was done to update the Software for the addition of Lithium Ion Batteries.
The new top assembly PN was created for traceability.
Firmware files are stored under the Top level Assy 1076761.