Control Board for older 1/2 HP Genie Screw Drive

Hello, 
  - I'm new to this forum.  Looking for help.  I got subject unit from my brother in law in FL and brought it to NY and installed it for use on my overhead door.  It works but can't get the replacement Safe-T-Beams [STB Model: FSTB-BX Piece# 3722R (the original ones that my brother in law had, were thrown out)] to work and so I must hold the wired button to get the door to close.  It will open with the wired button or with the remote. 
  - I do not get any lights on the STB to light and tried everything.  I believe the circuit board (called a control board by Genie).  It's where the wires from the STB plug in.  I would love to find someone with a used unit not installed or being use that wants to sell the whole unit or just the control board.  I can furnish a photo for ID.  PM me if you have or know someone who may have a unit or board.     Dick J - NY