Quoted from toberlindacher:However, they both have different controller boards and different sized ribbon cables. The LOTR has a Vishay with a 26 pin ribbon cable and the WW has the smaller type of ribbon connector.
DO NOT SWAP CONTROLLER BOARDS, they are not the same! ONLY SWAP THE GLASS DISPLAYS.
They use the same size ribbon connectors... The Whitestar controller board is mounted on the display panel of LOTR and THAT does indeed have a larger connector up to the backbox and is not the same for WW.
The connectors that travel to the glass displays (and the power) are the same size and pinout on both games.