Description
Restore accurate ball detection with this 4-Ball Trough Opto Transmitter and Receiver Board Set for Williams and Bally pinball machines. Designed for WPC systems using opto-based ball trough detection, this replacement set ensures proper infrared signal transmission and reception for reliable ball count tracking and game operation. Ideal for repairing ball count errors, trough malfunctions, or intermittent detection faults. Manufactured for direct replacement fitment and long-term durability.
