CANON - canonet g111 spt

Comprehensive service manual for the Canon Canonet G-III 17 rangefinder camera and equivalent Canonet QL 17/19 models. This workshop guide delivers detailed adjustment and maintenance procedures essential for servicing these classic 1970s compact rangefinder designs. The manual systematically documents critical calibration points—horizontal and vertical rangefinder compensation, exposure meter calibration, meter cell positioning, rangefinder resistor configuration, diaphragm opening geometry, shutter trapping blade clearance, release overtravel limits, film transport release tolerance, and infinity focus verification. Each adjustment procedure walks through the practical steps: diaphragm calibration against the 1/5.6 scale reference mark, trapping blade verification and safe clearance confirmation, exposure meter accuracy tuning via variable resistor banks, and rangefinder infinity focus optimization. Disassembly sequences provide the logical breakdown needed to access shutter assemblies and control lever mechanisms without unnecessary part removal. Exposure meter test protocols and battery system diagnostics ensure reliable meter function and proper power supply operation. Electrical wiring schematics and exploded-view photography illustrate component relationships and correct reassembly. The manual includes comparative documentation of older and newer battery-test board designs with corresponding wiring diagrams for efficient troubleshooting and accurate repair execution.