This document provides detailed technical information for the National Vendors TRON series door controller. Designed for robust performance and reliability in commercial applications, the TRON series represents a significant advancement in vending system technology. Its advanced features ensure efficient operation and user satisfaction, making it a preferred choice for businesses seeking dependable solutions. The engineering quality inherent in the TRON series underscores its commitment to durability and operational excellence.

This manual serves as a comprehensive guide for understanding and servicing the National Vendors TRON series door controller. It covers essential aspects including board-level schematics, diagnostic procedures, and component identification. The information contained herein is intended to assist technicians and service personnel in maintaining the optimal functionality and longevity of the TRON series controller, ensuring efficient troubleshooting and repair.