Bronica ETRSI Repair Manual

This comprehensive repair manual covers the entire ETRSI 6x4.5 system, a professional medium-format SLR camera. The document details disassembly and reassembly procedures for all major components, including the rear cover, film advance unit, shutter release system assembly, brake mechanism, operating ring, and viewfinder module. Each section is accompanied by numbered technical diagrams and precise parts listings. The manual includes critical adjustment instructions for the 45° mirror, focusing system, and essential mechanical settings. A complete diagnostic section addresses common issues—film advance failure, shutter release jamming, sluggish mirror operation—with potential causes and recommended solutions. Wiring diagrams identify electrical components and test points. Reassembly notes emphasize critical details such as application of specific lubricants (Liqui-Moly greases, clock oils) and precautions against binding. The document is structured progressively, enabling technicians to advance from basic disassembly to fine adjustments of the optical and mechanical systems. Exploded views and part reference numbers facilitate accurate component identification and ordering throughout the repair process.