Polaroid SX70 manual General Description

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I - DESCRIPTION

A. GENERAL DESCRIPTION

The Polaroid Land SX-70 is a folding, pocket sized, single-lens reflex camera which takes and immediately delivers full-color pictures approximately 31/4 inches square (see figures 1-1, 1-2 and 1-3). Operation is automatic; the user merely inserts the film, focuses and shoots. power is provided by a six-volt battery inside the film pack; therefore, the batteries are always fresh as the film.

The four element lens has a maximum aperture of f/8, and a focusing rang from 10,4 inches to infinity. The shutter is automatically controlled by a photocell and electronic timing. Electrical to mechanical energy conversion is accomplished by two solenoids and a motor. There are no separate diaphragm adjustement. The shutter opening and closing time is controlled by the exposure measuring system.

Figure 1-1 SX-70 Camera folded

Figure 1-2 Holding and opening the SX-70

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Contents Page Page General Description DescriptionOpening the Camera Camera OperationStarting the Automatic Mechanism Loading the Film packViewing and focusing Setting the exposure counterViewing and shooting Exposures using flash Completing the film packDeveloping the print Closing the camera Shutter Description Ambient Light Mode11 a Location & Arrangement of internal parts Shutter Description Flash Mode Page 14 S5 being opened by the recock ram Gear train Page Viewing and Exposing System Power SourceIntroduction LensViewfinder optics exposing Fresnel Figures 2-3 a and 2-3 BFresnel screen Camera Elctronics 1. General ViewfinderMirrors Flare baffleSX-70 Switch locations Switch functionsS3 Being opened by recock ram S4 Switch operating configurations Function Sequence Switch Function TablePage Flash Timing Sequence Chart Shutter, exploded view Shutter Mechanical Details FigureA Solenoid S2 operation Sequence of Operations Film Processing ComponentsPage Max Introduction Initial Tests III TroubleshootingSX-70 Cmaera Repair Inspection Procedure Test Equipment Operation Power supply and pack simulator FigureLocation of new collimator target Collimator FigureDisengaging the idler gear Comprehensive tester Comprehensive Testers -6Model B Camera tester Model B Camera Tester Light Leak Tester Figure Comparalumen Light Levels TableLight leak test system Flash Simulator Board Figure10 Manual camera tester Manual Function Tester FigureManual Function Test Sequence Exit Pupil Test Optical System13 Aligning the exit pupil gage Entrance Pupil TestCollimation USE of Analysis ChartsConcave Mirror Distortion Check Fresnel Quality Check16 Fresnel standards chart 18 Flex circuit terminal locations Camera/Shutter Isolation19 Test points on SX-70 shutters Camera Analysis ChartsPage Front COVER/SPREAD Roll Assembly InstallationRemoval Front cover hinge studs Repairs / Adjsutments Loose Front CoversBending the stop latch Interference Between Front and Bottom Covers Top Spread Roll LoosenessReplacing the Light Shield Cam Front cover light shield cam Mirror Cover / Boot AssemblyBoot retaining screws