This board is a new design replacement part for the Twilight Zone machine. It is a direct replacement for the original part A-16535.
Failures of the original part typically result in the game getting confused about the power-ball. Either not detecting the power-ball or declaring all balls a power-ball are typical of the failed component.
The board is located on the underside of the subway plastic form and is easily replaced with two screws and a 4 pin Molex connector.
The new board features a multi-turn adjustment. This allows for a precise adjustment of the eddy sensor. In addition, the multi-turn means the board is less likely to go out of adjustment with the high vibration and shock loads experienced under the play field.
As always, Tangles' parts use best quality components and manufacturing techniques.