Eddy Sensor Board, universal

Adjustable Eddy Sensor Replacement Board for different Pinball Machines

Ref. Part No.: A-16922, A-18543-1, A-18543-2, A-19237

R1 = 0 Ohm for use in the Twilight Zone
R1 = 4.7 kOhm for use as a sensor board

Restistors included!

Installation:

1. Place the board in the location in the machine. Use a single screw to hold it in place while you test.
2. Connect the 4-pin (switch matrix) and 2-pin (sensor) connectors.
3. Turn the machine on.
4. Using a small screwdriver, turn the pot from end to end. It will rotate through about 3/4 of a turn.
5. At one end, the LED will go on. When that happens, slowly turn the pot the in the opposite direction until the LED goes off.
   If the LED does not go off, your sensor or its wiring have a problem.
6. Place a ball on the top of the playfield in the sensor area. The LED should light when the ball rolls over the sensor.