Polaroid 636 restyle Istruzioni operative

Repair Manual

Americas Business Center

Technical Services

201 Burlington Road

Bedford MA 01730

TEL: 1.781.386.5309

FAX: 1.781.386.5988

636/636AF Instant Camera

December 1995

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Model 636 Camera Service Manual

CONTENTS

Section Page

1 General Description 1

2 Sequence of Operation 3

3 Theory of Operation 13

4 Disassembly & Reassembly 36

5 Troubleshooting 75

6 Testing with the Star Tester,

Camera Adjustments and Tester

Calibration 85

7 Testing with the B-600 Tester,

Camera Adjustments and Tester

Calibration 106

PARTS CATALOG: Separate document.

See Polaroid Model 636 CAMERA PARTS CATALOG,

January 1994 for part names, numbers and exploded views.

LIST OF ILLUSTRATIONS

Figure Description Page

(SECTION 1 Model 636 Description)

- 636 Camera 1

(SECTION 2 Sequence of Operation)

- Flash charging, fire & exposure switches 3

- Strobe charging 3

- Strobe ready sequence 4

- Exposure sequence 4

- Exposure sequence: clock & photocell 5

- Fill flash sequence 5

- Flash quench, shutter closing 6

- Motor drive of pick, counter, S5 actuator 6

- Low ambient exposure sequence 7

- Subject near/far determination 7

- “ “ “ 8

- Low light near exposure control 8

- Motor drive of pick, counter, S5 actuator 9

- Subject far determination 9

- Low light far exposure sequence 10

- Motor drive of pick, counter, S5 actuator 10

- Non-flash exposure control 11

- Camera Operating/Exposure Sequence Diagram 12

(SECTION 3 Theory of Operation)

- 636 Camera 13

- 600 film pack 14,15

- 636 Flash 16

- Flash charging 17

- Flash quenching 18

- Three flash picture conditions 20

- Flash control methods 21

- High ambient, fill flash mode 22

- Photocell light measurement 23

- Low ambient flash exposure 24

- Subject near/far determination 25-28

- IR light measurement 28-33

- Exposures without flash 33

- Camera inhibits 34-35

(SECTION 4 Disassembly and Reassembly)

- Strobe components 37

1 Removing Strobe Cover 38

2 Discharging Strobe capacitor 38

3 Removing Lower Housing 39

4 Removing Flex 39

Figure Description Page

5 Removing Flashtube, Flash Shield, Insulator 40

6 Unsoldering Flashtube wire leads 40

7 Removing PC Board & Plunger 41

- Apron Disassembly components 42

8 Removing Apron from Body 43

9 Removing Panel/Front Plate 43

10 Disassembling Close Up Lens & Trim Button 44

11 Reassembling Close Up Lens 45

12 Replacing Shuttle 45

- Body Disassembly components 46

13 Removing Cone from Body 47

14 Removing Strap Assembly 47

15 Removing Pack Spring, Tripod Nut if present 48

16 Removing Eye Cup/Retainer 48

- Shutter Disassembly components 49

17 Removing Viewfinder Housing 50

18 Removing Opening Blade Spring & Trim Slide 50

19 Removing Ambient Cal Disc, IR Cal Wedge, IR

Lens Filter & Ambient Lens Filter 51

20 Removing Lens Mounting Plate 51

21 Removing Inertia, Walking Beam, Shutter

Latch & Shutter Blades 52

22 Disassembling Inertia & Walking Beam 52

23 Removing Flex from Contact Support Block,

Motor and Wire Block 53

24 Removing Base Block from Cone 53

25 Removing Flex from Base Block 54

26 Removing Solenoid from Base Block 54

27 Replacing Solenoid in Base Block 55

28 Replacing Flex on the Base Block 55

29 Remounting Base Block on Cone 56

30 Reconnecting Flex to Contact Support Block,

Motor and Wire Block Assy 56

31 Replacing Shutter Blades 57

32 Reassembling Inertia, Walking Beam & Spring 57

33 Replacing Walking Beam/Inertia Assy 58

34 Replacing Shutter Latch 58

35 Replacing Lens Mounting Plate 59

36 Replacing Trim Slide 59

37 Replacing Photometrics on Lens Mtg Plate 60

38 Replacing Opening Blade Spring 60

iii

Figure Description Page

- Drive Assembly components 61

39 Removing parts from Gear Drive Cover 62

40 Releasing Springs and Drive Cover detents 63

41 Removing Gear Drive Cover 64

42 Removing parts from Gear Drive 64

43 Removing Counter, Gears & Pick 65

44 Removing S1 Slider and S5 Actuator 65

45 Replacing Actuator and Slider Assy 66

46 Verifying Slider-Switch contact relationship 66

47 Gear placement guide 67

48 Replacing Door Pawl and Spring 67

49 Replacing Counter 68

50 Replacing Pick & Return Spring 68

51 Replacing the Timing Gear 69

52 Setting Counter and Pawl Springs 69

53 Reconnecting wiring to Contacts 70

54 Removing Spread System from Door 71

(SECTION 6 Camera Testing with the Star Tester)

1 Graywall setup 87

2 Installing modified Strobe Fixture 12657B 88

3 Aligning Camera on Horn with Tester window 89

4 Installing risers under leveling legs 90

5 Test setup and Horn Riser position 91

6 Star Tester Controls & Indicators 94

7 Setup for 636 Graywall Test 98

8 Removing 636 Front Plate 100

9 Adjusting Blade Spring 100

10 Replacing Front Plate w/modified Front Plate 101

11 Adjusting Ambient Calibration Disc 101

12 Adjusting IR Calibration Wedge 102

(SECTION 7 Camera Testing with the B-600 Tester)

1 B-600 Tester and Model B Light Source 108

2 Camera on Horn, ready for testing 111

3 Removing Front Plate/Lens Panel 115

4 Adjusting Opening Blade Spring 115

5 Replacing Front Plate w/modified Front Plate 116

6 Adjusting IR Calibration Wedge 116

7 Adjusting Ambient Calibration Disc 117

SECTION 1 - MODEL 636 CAMERA GENERAL DESCRIPTION

The Model 636 OneStep/CloseUp Camera is an evolutionary, reliable, low-cost design in the

Polaroid “600” family of integral strobe, fixed focus hardbody cameras. It makes extensive use of

the 640 Camera technology and has many derivative characteristics of the 630 and 635 Camera

designs as well. The 636 offers automatic exposure control, fixed focus and rapid strobe recharge.

Model 636 was introduced in worldwide and U.S. markets in 1992 and 1993, and offers users the

following features:

* Close-up lens for subjects 2 - 4 ft. (0.6 - 1.2m) from Camera. An oval frame outline visible in

the Viewfinder helps position subject correctly.

* Depth of field 4 ft. (1.2 m) to infinity.

* Built-in, fold down, integral quench SPAR Strobe with 2 to 10-ft.(0.6 to 3.0 m) range, in

swing-up housing. Strobe charges automatically in 4 sec. when erected. Green strobe-ready

LED in rear of housing; remains ON for about 30 sec.

* Electronic logic for fill-flash in outdoor brightness, in approximate proportions of 75% ambient

light and 25% strobe fill.

* Uses 10-picture Polaroid 600 (ASA 600) color film.

* Non-flash button allows pictures to be taken without strobe firing (e.g., through glass window).

* Lighten/Darken (trim) control for adjusting exposure + or - 3/4 stop. When in L or D position,

double arrows are visible in Viewfinder as reminder to user.

* Exposure control utilizing both ambient and IR light measurement. Flash exposure control via

IR quench full dissipation SPAR strobe.

* Picture counter shows number of exposures remaining (counts down).

* “Talking Camera” version plays pre-recorded message just before shutter opening, to encour-

age subjects to smile.

* Adjustable neck strap and on some models, tripod socket.

SPECIAL NOTE: 636 AF AUTOFOCUS CAMERA:

Model 636 AF Autofocus Camera, from a service standpoint, is similar to the 636 OneStep/Close

Up only in outward appearance.

As an extension of the 636 Camera line, the 636 AF uses a slightly modified version of the Impulse

shutter and a repackaged version of the Joshua electronics and software. It uses wink autofocus

from two feet to infinity, a rapid recharge strobe with a range of 10 feet, and has a maximum

shutter aperture of f/12.

In addition to more than two dozen unique parts, the 636 AF camera uses a combination of parts

from the 636, the Impulse Shutter and Joshua electronics.

* * * * * *

For more information, please refer to:

NPI 600AM #95-44, dated March 27, 1995

636 AF CAMERA CUSTOMER SERVICE INFORMATION MANUAL

MARCH 1995

MODEL 636 AUTOFOCUS CAMERA PARTS CATALOG

MARCH 1995

SECTION 2 - MODEL 636 SEQUENCE OF OPERATION

1. Shown here is the location of the switches which regulate flash charging, flash fire and

exposure. We will now run through a flash exposure sequence.

2. Lightly pressing the exposure button closes the S10 contacts, charging the strobe main

capacitor.

3. Within five seconds the green LED at the rear of the strobe comes on, indicating that the

main capacitor is fully charged. The picture taker may now press in the exposure button

fully. This closes S1 and S10 remains closed. Closing S1 energizes the solenoid which

pulls in slightly.

4. As the solenoid pulls in, it releases the walking beam from the shutter latch. The spring-

loaded S5 actuator drops down, closing the S5P and S5L contacts. S5L starts an internal

clock. The camera electronics signal the solenoid to deenergize.

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