HONEYWELL - Honeywell Honeywell Strobonar 710 780 Maintenance instructions

Comprehensive technical maintenance and service manual for the Honeywell Strobonar 710 and 780 electronic flash units, from the Photographic Products Division. Originally published in January 1974, this reference guide provides detailed instructions for technicians and qualified users to ensure proper operation and ongoing maintenance of these professional strobe lighting systems. The manual is organized into five primary sections addressing general introduction, operational principles, checkout and troubleshooting procedures, and practical maintenance tasks. The introduction section outlines unit specifications and provides component reference designations for easy identification. The principles of operation section contains comprehensive circuit descriptions, including oscillator circuits, wall box operation, AC power operation, battery charging, trigger circuit function, and automatic circuit behavior. The checkout and troubleshooting section covers operational verification procedures, test equipment requirements, battery recycling, battery operation verification, AC operation checks, full power light output verification, auto quench functionality, anode voltage measurement, resistor selection parameters, and extensive troubleshooting data with technical reference values. The maintenance section delivers complete guidance on unit disassembly and reassembly procedures, cleaning protocols for both mechanical and electrical components, and maintenance of reflector and optical elements. The final section provides parts lists and schematic reference information essential for ordering replacement components and understanding system architecture.