![background image](http://html1.mh-extra.com/html/polaroid/joshua-captiva/joshua-captiva_service-manual_1573156130.webp)
A - 6
Mirror-Down Signal
One of three signals generated by DKEC cam on Timing Gear; occurs
halfway through cycle, when cam momentarily opens DKEC switch. Used to
re-open Viewfinder after exposure.
Mirror, Fixed
Mirror at 45-degrees to image path which directs image to Fresnel screen,
concave mirror and Viewfinder optics.
Mirror, Taking
Mirror driven upward to 45-degree angle, into image path, todirect image
onto film.
Mirror, Viewing
Same as Fixed Mirror.
Open
Term used with Joshua to describe condition of doors, not the position of the
Camera.
Override Slider
Part of the Storage Chamber Pick Assembly in the Film Door; actuates
Chamber Pick to pull picture from nip of Spread Rolls into Storage
Chamber; also coupled to Film Shade through Actuator Link.
Overtravel Spring
Part of VF Blind/VF Blind Link mechanism; allows VF Blind to close
before Mirror is released; also compensates for Recock Latch rotation after
VF Blind cannot move further.
Pack, Film
Ten Joshua instant color print film frames with darkslide and mercury-free
battery in a film box.
Pack Frame
Guide frame for film pack in Film Door.
Photodiode System
Dual photodiodes behind green and black lenses, to measure visible
(ambient) and IR (strobe) light values.
Photographic Field
Area captured on film (in Joshua, same as viewing field).
Photometer
See Photodiode System.
Picking
Transporting film frame by motion of a notched, reciprocating arm (Joshua
has two picks: one moves frame into feed rolls, the other into Storage
Chamber).
Pick Carrier
Reciprocating arm in Drive System driven forward by cam on Timing Gear,
returned by spring load. Includes Pick Strap to pull film into Feed Rolls and
arm to index Counter Wheel.
Pick Carrier Advance Cam Cam on underside of Timing Gear that advances and holds forward the Pick
Carrier.
Pick Strap
Part of Pick Carrier that pulls frame into Feed Rolls.
Summary of Contents for Joshua Captiva
Page 6: ...This page intentionally blank...
Page 7: ...1 1 1 Description...
Page 15: ...1 9 Figure 1 6 Joshua System Features...
Page 23: ...1 17 Figure 1 16 Principal Parts of the Joshua Drive System...
Page 31: ...1 25 Figure 1 22 Joshua Components Covers and Panels...
Page 32: ...This page intentionally blank...
Page 33: ...2 1 2 Theory of Operation...
Page 36: ...2 4 Figure 2 1 Pictorial ChartShowing JoshuaCamera Sequence of Operation...
Page 57: ...2 25 Figure2 31 Circuit Diagram...
Page 58: ...This page intentionally blank...
Page 59: ...3 1 3 Testing and Adjustments...
Page 72: ...This page intentionally blank...
Page 73: ...4 1 4 Disassembly and Reassembly...
Page 108: ...This page intentionally blank...
Page 109: ...5 1 5 Troubleshooting...
Page 122: ...5 14 5 14...
Page 123: ...5 15 Figure 5 7 Joshua Camera Timing Diagram...
Page 124: ...This page intentionally blank...
Page 125: ...A 1 Appendix...
Page 134: ...This page intentionally blank...