TC - 2
Polaroid Joshua Camera
Service Manual
Table of Contents
1. Description ............................................................................................................... 1-1
Introduction ............................................................................................................... 1-3
Unique Joshua Differences ........................................................................................ 1-2
In-Camera Picture Storage .................................................................................. 1-4
Compact Camera Size ......................................................................................... 1-5
Unique Microprocessor Controlled Exposure System.......................................... 1-7
Key Joshua Features ................................................................................................. 1-8
Using the Camera ...................................................................................................... 1-10
Loading Film....................................................................................................... 1-10
Erecting Camera .................................................................................................. 1-10
Taking Picture ..................................................................................................... 1-11
Brightness Adjustment and Self-Timer ................................................................ 1-12
Major Functional Sub-Systems of the JoshuaCamera ................................................ 1-13
Erecting, Viewfinder and Camera Optical System ............................................... 1-13
Drive and Switching System................................................................................ 1-16
Shutter System .................................................................................................... 1-18
Film Frame Transport and Spreading .................................................................. 1-21
Specification Summary ............................................................................................. 1-23
Camera Components, Covers and Panels ................................................................... 1-24
2. Theory of Operation ................................................................................................ 2-1
Sequence of Operation .............................................................................................. 2-3
Stages of Operation ................................................................................................... 2-3
Loading Filmpack into Erected or Folded Camera............................................... 2-3
Powering Folded Camera for Dark-Slide when Filmpack is Inserted................... 2-6
Powering Camera when Film Door is Closed, Latched and then Erected............. 2-8
Maintaining Power for Processing after Camera is Folded................................... 2-9
Darkslide Transport and Counter Wheel Indexing ............................................... 2-11
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