NIKON - nikon speedlight sb21
by NIKONComprehensive service manual for the Nikon Macro Speedlight SB-21 (FSA90401) flash unit and its paired controllers AS-12 (FSW52701) and AS-14 (FSW52801). Published by Nippon Kogaku K.K. in 1986, this workshop reference is the authoritative technical guide for service technicians and professional repair specialists working on these professional flash systems. The manual covers complete specifications including guide number output across all shooting modes (Full, 1/4, 1/16 power), flash coverage angles, recycling times with different battery types (alkaline, zinc-carbon, Ni-Cd cells, and external power supplies), and operational features like the focus illuminator, SW-8 condenser adapter, and X-sync ranges. Each model receives detailed treatment with exploded parts diagrams, comprehensive parts lists, circuit board schematics, component reference tables, full circuitry diagrams, step-by-step disassembly and adjustment procedures, and systematic troubleshooting guidance. Whether maintaining equipment in regular use, performing field repairs, or restoring these units to original condition, this manual provides the technical depth required for proper diagnosis and successful repair work.
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Document Details
- Format
- Pages
- 90
- Size
- 9.1 MB
- Category
- Photography