Polaroid SX70 manual Boot retaining screws

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5.In the following step, the bottom cover will be removed. To prevent damage to the flex circuit, insert a thin strip (a small, metal, six-inch pocket scale, for example) between flex circuit and the inside cover surface. Move the tool from one locating stud to the other as the cover is being removed to prevent sticking to the flex circuit.

6.Lift the cover a small distance away from the camera, then slide the cover from the assembly.

7.remove the inner-frame-to-boot-retainer screws (Figure 4-8).

8.Remove the four shutter housing retaining screws from the rear of the shutter mounting hinge bracket (Figure 4-9). (Check for square head or Bristol head screw. Replace with same type.)

Caution : While the shutter is detached from the mounting bracket, make sure no mechanical stress is put on the ribbon cable.

9.Remove the two hinge-bracket-to-boot- retainer screws located adjacent to the round lens opening in the shutter hinge bracket. (Newer cameras have rivets which must be removed.)

Figure 4-8 Boot retaining screws

Figure 4-9 Shutter mount retaining screws

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Contents Page Page Description General DescriptionCamera Operation Opening the CameraLoading the Film pack Starting the Automatic MechanismSetting the exposure counter Viewing and focusingViewing and shooting Exposures using flash Completing the film packDeveloping the print Shutter Description Ambient Light Mode Closing the camera11 a Location & Arrangement of internal parts Shutter Description Flash Mode Page 14 S5 being opened by the recock ram Gear train Page Lens Power SourceIntroduction Viewing and Exposing SystemFresnel Figures 2-3 a and 2-3 B Viewfinder optics exposingFresnel screen Flare baffle ViewfinderMirrors Camera Elctronics 1. GeneralSwitch functions SX-70 Switch locationsS3 Being opened by recock ram S4 Switch operating configurations Switch Function Table Function SequencePage Flash Timing Sequence Chart Shutter Mechanical Details Figure Shutter, exploded viewA Solenoid S2 operation Film Processing Components Sequence of OperationsPage Max III Troubleshooting Introduction Initial TestsSX-70 Cmaera Repair Inspection Procedure Power supply and pack simulator Figure Test Equipment OperationCollimator Figure Location of new collimator targetDisengaging the idler gear Comprehensive Testers -6 Comprehensive testerModel B Camera tester Model B Camera Tester Comparalumen Light Levels Table Light Leak Tester FigureFlash Simulator Board Figure Light leak test systemManual Function Tester Figure 10 Manual camera testerManual Function Test Sequence Optical System Exit Pupil TestEntrance Pupil Test 13 Aligning the exit pupil gageFresnel Quality Check USE of Analysis ChartsConcave Mirror Distortion Check Collimation16 Fresnel standards chart Camera/Shutter Isolation 18 Flex circuit terminal locationsCamera Analysis Charts 19 Test points on SX-70 shuttersPage Front COVER/SPREAD Roll Assembly InstallationRemoval Repairs / Adjsutments Loose Front Covers Front cover hinge studsBending the stop latch Interference Between Front and Bottom Covers Top Spread Roll LoosenessReplacing the Light Shield Cam Mirror Cover / Boot Assembly Front cover light shield camBoot retaining screws