This manual covers the National Vendors Snack Machine Interface Board, models 147 474/5, 148, 247, 248, 461, 462, 474, 475, and 476. These interface boards are designed for use with National Vendors Pre-PIE Snack Center and Refresh Center systems. Engineered for reliable integration, these boards facilitate seamless communication within the vending machine's operational framework, ensuring efficient product dispensing and system management. Their robust design and specific compatibility make them a critical component for maintaining the functionality of these vending units.

This schematic manual provides detailed board-level schematics essential for understanding and servicing the National Vendors interface boards. It outlines the electrical specifications, including power source and voltage requirements, and details the intended use for Snack Center and Refresh Center interfaces. The purpose of this document is to serve as a comprehensive technical reference for technicians and service personnel. By offering in-depth schematic information, this manual aids in accurate troubleshooting, repair, and maintenance of the interface control boards, ensuring optimal performance and longevity of the vending equipment.

This manual covers the National Vendors Snack Machine Interface Board, models 147 474/5, 148, 247, 248, 461, 462, 474, 475, and 476. These interface boards are designed for use with National Vendors Pre-PIE Snack Center and Refresh Center systems. Engineered for reliable integration, these boards facilitate seamless communication within the vending machine's operational framework, ensuring efficient product dispensing and system management. Their robust design and specific compatibility make them a critical component for maintaining the functionality of these vending units.

This schematic manual provides detailed board-level schematics essential for understanding and servicing the National Vendors interface boards. It outlines the electrical specifications, including power source and voltage requirements, and details the intended use for Snack Center and Refresh Center interfaces. The purpose of this document is to serve as a comprehensive technical reference for technicians and service personnel. By offering in-depth schematic information, this manual aids in accurate troubleshooting, repair, and maintenance of the interface control boards, ensuring optimal performance and longevity of the vending equipment.