SPT - Yashica FR1 FR2

Comprehensive service and repair manual for Yashica FRI and FRII 35mm cameras. This technical guide provides detailed maintenance procedures, adjustment specifications, and troubleshooting methods for these automated focal-plane shutter models. The manual documents battery voltage reference points (2.75V), manual shutter speed adjustments (1/30 and 1/1000), release magnet configurations, and curtain spring positioning. Key sections include technical specifications, sequential adjustment procedures for proper exposure control, and step-by-step disassembly and reassembly instructions for the mirror-box and shutter mechanisms. Detailed pictorial representations of the flex circuit and switch position diagrams (SW1 through SW9) clarify the function of each control element. The guide features a comprehensive troubleshooting chart addressing common symptoms including shutter release failures, self-timer malfunctions, and magnet contact problems. Specific adjustment values and resistance specifications are provided throughout to support both preventive maintenance and corrective repairs. The manual also includes reassembly highlights and component identification for proper camera operation and timing synchronization.