W/H,DC Board SVCE (BI-42SD,BI-48SD)
 BI-42SD  Use Prior to Serial #4300000
          From #4300000 To #4341000 See 7040030
          Starting With #4341000 See 7040188
 BI-48SD  Use Prior to Serial #4300000
          From #4300000 To #4341000 See 7040030
          Starting With #4341000 See 7040189