A - 5
Hybrid Exposure
Combination of follow focus and quenching systems.
Inertia System
Rack and pinion system with zinc inertia gear, coupled to blade-opening
Walking Beam; used to reduce blade opening speed.
Infrared
Invisible portion of electromagnetic spectrum. Used in Joshua exposure
calculations since many fabric dye colors have similar IR reflectivity values.
Inhibits
Prevention of Camera operation when bad/no picture would result (storage
chamber full, end of pack, strobe not charged).
Integrator
Electronic circuit for summing and storing measured light values.
(Ambient, Hybrid)
Interconnect Flex
(See Flex, Interconnect).
IR
Abbreviation for infrared.
IR Reflectivity
Property of a material to reflect/emit infrared radiation. Used in Joshua
exposure calculations since many fabric dyes of differing colors possess
similar IR reflectivity values.
Jam
Film frame misfeed and incomplete transport into storage chamber.
Jog, Reverse Motor
Brief, initial CCW rotation of Motor to release Recock Latch, allowing VF
Blind to block VF window and Recock Link to lift Taking Mirror.
Joshua
Code name for Joshua Camera during development.
LED
Abbreviation for Light Emitting Diode.
Logic Switch
Multi-element wireform switch in Joshua, controlling Exposure Trim,
Self-Timer, End of Pack, DKEC, S1A-S1B, Film Speed and Full Chamber
functions.
Look-Up Table
In the Joshua microprocessor, a stored collection of ambient and Wink
reflectance values arranged as rows and columns, the intersections of which
provide optimum exposure data for thousands of different photographic
situations.
Mainframe
Primary molded frame on which all other camera subassemblies, frames and
structures are mounted.
MCU
Circuit designation of microprocessor IC in Joshua Camera.
Microprocessor (Micro)
Integrated circuit chip containing CPU elements of control logic, decoding,
arithmetic processing and memory.
Содержание Joshua Captiva
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Страница 7: ...1 1 1 Description...
Страница 15: ...1 9 Figure 1 6 Joshua System Features...
Страница 23: ...1 17 Figure 1 16 Principal Parts of the Joshua Drive System...
Страница 31: ...1 25 Figure 1 22 Joshua Components Covers and Panels...
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Страница 33: ...2 1 2 Theory of Operation...
Страница 36: ...2 4 Figure 2 1 Pictorial ChartShowing JoshuaCamera Sequence of Operation...
Страница 57: ...2 25 Figure2 31 Circuit Diagram...
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Страница 59: ...3 1 3 Testing and Adjustments...
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Страница 73: ...4 1 4 Disassembly and Reassembly...
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Страница 109: ...5 1 5 Troubleshooting...
Страница 122: ...5 14 5 14...
Страница 123: ...5 15 Figure 5 7 Joshua Camera Timing Diagram...
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Страница 125: ...A 1 Appendix...
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