Milton Hill Observatory modificaton of Vixen DD-1 Hand Controller
for use with AGRC (AutoGuider Relay Cable)
  • Disassembly
  • Direction buttons
  • The 4 direction buttons just pop off. A small screwdriver will help pry them up.
  • Case
  • Remove the 3 secrews from the back of the case and remove the top.
  • Circuit board
  • Remove the 4 secrews from the corners of the circuit board and flip it over.
  • RJ12 6 wire cable plug wiring
  • Pin numbering
  • The blue wire is used in the pin 1 position on all RF12 plugs.
  • rj12
  • DD-1 back of circuit board with mofification
  • Wiring
  • Blue wire is connected to an existing hole labeled VCC.
  • Yellow wire is connected to ground.
  • Green wire is connected to the. East button.
  • Red wire is connected to the North button.
  • White wire is connected to the West button.
  • Black wire is connected to the South button.
  • back
  • DD-1 front of circuit board, show routing of RJ12 cable
  • Reassembly
  • The lower end fo the DD-1 case must be knoched to allow the AutoGuider flat cable to come out of the box.
  • front
  • DD-1 modified
  • Completed
  • DD-1 with AutoGuider cable.
  • complete
6-Sep-2011 William E. Rison