CANON - canon lens 24 85
by CANONComprehensive service manual for Canon EF 24-85mm f/3.5-4.5 USM and EF 24-85mm f/3.5-4.5 USM MS zoom lenses (reference numbers C21-9921 and C21-9922). This technical document is intended for qualified service personnel and covers both the technical theory and complete repair procedures for these high-performance zoom optics. The manual is divided into five main sections: Part 1 introduces the lenses with development objectives, key features, detailed specifications and external dimensions. Part 2 covers electronic components, IC pin tables, circuit descriptions including the lens optical system, switch operations, and mechanical features. Part 3 provides extensive repair information with disassembly, reassembly and adjustment procedures for centering, optical tilt, focusing, pulse adjustment, focus compensation, and zoom brush position. Part 4 presents a detailed parts catalog with component illustrations and part numbering. Part 5 includes complete electrical schematic diagrams and PCB layouts. This thorough technical reference is designed for professional service technicians and Canon technical support centers working on these precision lens assemblies.
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Document Details
- Format
- Pages
- 70
- Size
- 4.7 MB
- Category
- Photography