Polaroid ProCam Repair Manual
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Polaroid ProCam Repair Manual

Polaroid procamera
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See also: User Manual
Repair Manual
ProCam
September 1996
Americas Business Center
Technical Services
201 Burlington Road
Bedford MA 01730
TEL: 1.781.386.5309
FAX: 1.781.386.5988

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Summary of Contents for Polaroid ProCam

  • Page 1 Repair Manual ProCam September 1996 Americas Business Center Technical Services 201 Burlington Road Bedford MA 01730 TEL: 1.781.386.5309 FAX: 1.781.386.5988...

  • Page 2: Table Of Contents

    Purpose of Manual ........................TC-4 Manual Organization ........................TC-4 Other Documents Required for Service ..................TC-4 1. Description & Theory of Operation ..................1-1 ProCam Unique Features ......................1-3 ProCam General Features ......................1-4 SPAR Thyristor Strobe ...................... 1-4 ProCam Specifications ....................... 1-5 Viewfinder .........................
  • Page 3 Electrostatic Discharge Damage ..................3-5 Optical Parts Protection from Scratches and Smudges ............3-6 Tools Required for Disassembly and Reassembly .............. 3-6 ProCam Disassembly and Reassembly Procedures ..............3-7 Top Cover and Mid Cover ....................3-7 Removal ........................3-9 Replacement ......................... 3-9 Front Bezel ........................
  • Page 4 Viewfinder and Eyecup ...................... 3-12 Removal ........................3-12 Replacement ......................... 3-13 Close-Up Lens Switch ....................... 3-14 Removal ........................3-14 Replacement ......................... 3-14 Photodiode ......................... 3-15 Removal ........................3-15 Replacement ......................... 3-15 Exposure Board ......................... 3-16 Disconnecting Encoder, Piezo, Solenoid 1/2 ............... 3-16 Reconnecting Encoder, Piezo, Solenoid 1/2 ..............
  • Page 5 Motor Flex ......................... 3-29 Removal ........................3-29 Replacement ......................... 3-30 Bellows/Cone Assembly ....................3-31 Removal ........................3-31 Replacement ......................... 3-33 Piezo ..........................3-35 Removal ........................3-35 Replacement ......................... 3-35 Door Latch/Erect Switch Assembly ................... 3-36 Removal ........................3-36 Replacement ......................... 3-36 Motor ..........................

  • Page 6: Purpose Of Manual

    Purpose of this Manual This Service Manual is intended as a training and reference guide for the Polaroid and Polaroid- authorized technical personnel servicing the Polaroid ProCam. Organization of this Service Manual Description & Theory of Operation. General information about camera capabilities and applications.

  • Page 7: Description & Theory Of Operation

    1. Description & Theory of Operation 1 - 1...

  • Page 8: Procam Unique Features

    1. Description & Theory of Operation Table of Contents ProCam Unique Features ............... ProCam General Features ............. SPAR Thyristor Strobe ............... ProCam Specifications ..............Viewfinder .................. Audible Signals ................Quintic Lens System ..............Exposure Control ................ First Light Detect ................
  • Page 9 This section of the service manual presents details of ProCam operation. The discussion is mainly limited to those areas which are new or unique to the ProCam. The first part of the section is a general discussion of the new technology found in the ProCam, while the second part of the section details the interactions of ProCam parts in a sequence of operation.
  • Page 10 A connector on this board ties the strobe electronics to the rest of the ProCam electronics. The Strobe Ready Lights (red - charging; green - ready to fire) are mounted on the interface PC board which is directly behind the system Control Panel at the rear of the ProCam.
  • Page 11 To reduce the recharge time even further, the ProCam strobe incorporates another feature called sneak charge. Actually occurring at the end of one exposure cycle in preparation for the next exposure, the sneak charge utilizes the period between shutter blade closure and the start of film processing.
  • Page 12 USE FOLDOUT Figure 1-2. Schematic of ProCam Strobe 1 - 6...

  • Page 13: Viewfinder

    The Viewfinder (Figure 1-3) in the ProCam is an erecting, telescopic, straight viewfinder. It is a self-contained assembly which may be removed from the ProCam in one piece. The entire viewfinder assembly moves with the cone as the ProCam is folded and unfolded; the eyepiece (turret) folds separately when the ProCam is closed.
  • Page 14 Figure 1-4 shows the components within the viewfinder which direct the image from the front window to the eyepiece. There are six plastic lenses, four mirrors, a mask and a black border which define the image and clearly show the extent of the image which will be captured on the film frame, and a plastic wedge which aligns the image relative to the eyepiece.

  • Page 15: Quintic Lens System

    After the tenth picture is processed, a three (3) second out-of-film chime will sound. If the empty film pack is left in the ProCam and the Shutter Release Button is pressed to the first stage, the chime will be repeated.
  • Page 16 ProCam focussing borrows from methods used in earlier Polaroid cameras. However, it goes well beyond matching lenses and is a unique technological achievement in camera optics. At the heart of the ProCam focus operation is the Quintic aspheric lens system. Figure 1-6 shows the difference between spherical and aspherical lenses.
  • Page 17 Polaroid cameras. This results in larger subject images being produced. Figure 1-8 shows the components of the ProCam Quintic lens system. It is a six element, 95mm lens system. The front assembly contains two fixed lenses, one spheric and one aspheric.
  • Page 18 At the start of the exposure cycle, when Solenoid 1 is energized, the Walking Beam releases the Quintic Kick Spring. This Spring strikes the Quintic sector causing it to start its arc through the optical path; obviously, the Shutter Blades are still closed during the movement of the Quintic sector.
  • Page 19 At the same time, the Transducer Ranging Circuit is determining the distance from camera to subject. When the encoder count reaches a point which corresponds to the subject distance, a signal is sent to activate Solenoid 2. Activation of Solenoid 2 causes the Catch Pawl to engage the teeth along the edge of the Quintic sector.

  • Page 20: Exposure Control

    0.47 - 0.65 Exposure Control ProCam uses the same basic exposure system as the Spectra camera. The camera controls exposure using a combination of visible and infrared light and distance measurements (Figure 1-13). The ProCam exposure system differs from Spectra in that it uses an upgraded version of the exposure IC’s.
  • Page 21 TRANSDUCER PROVIDES DISTANCE INFORMATION Figure 1-13. Hybrid Light and Distance Measurements ProCam Light Measurements As in the Spectra system, a brightness detect reading is taken by the exposure circuitry during Preview. Scene brightness is measured at this time and is categorized into:...
  • Page 22 = Fill Flash Mid Brightness = 50% Flash/50% Ambient Low Brightness = Full Flash ProCam Low/Mid-Brightness Strobe Exposures Low Brightness = Less than 17' time-out at 44ms or Integration Mid Brightness = More than 17' time-out at 2.8 sec. or Integration...

  • Page 23: First Light Detect

    PHOTDIODE OPENING HERE AS SHUTTER ENCODER BLADES STAR TO OPEN Figure 1-14. First Light Detect Dual Photodiode Light integration in the ProCam is determined by measurements taken through a dual photodiode (Figure 1-15). DUAL PHOTODIODE DUAL PHOTODIODE FILTER (GREEN FOR...

  • Page 24: Procam System Autofocus

    Electronic Trim In previous camera models, trim has been achieved by sliding a shaded wedge over the photocell to fool it into causing longer or shorter exposures. In the ProCam system, trim is achieved electronically. Moving the Lighten/Darken Switch on the Control Panel affects the electronic circuit of the ProCam, causing exposure times to be increased or decreased by 0.65 +/- 0.25 stop.

  • Page 25: Film Speed Switch

    To compensate for minor differences in film speed from one pack to another, a Film Speed Switch is incorporated in the ProCam. This Switch is located in the film compartment of the ProCam and is actuated by a plastic tab (rail) on the side of the film pack (Figure 1-17).

  • Page 26: Date Module

    Date Module A Date Display Module in the ProCam imprints the date and/or time of day in the top left corner of the picture, using a backlit LCD. The Date Display Buttons (SET, SEL and MOD) on the Control Panel permit the user to select a Japanese, U.S.
  • Page 27 Timing Gear and the Counter, while the Erect/Door Switch is actuated by ProCam erection and Door closure. Table 2-3. Wireform Switches - Starting Condition Switch Function Condition S10/S1 Initiates strobe charging; supplies power OPEN (Shutter for ranging and preview; initiates cycle.

  • Page 28: Film Pack Inserted And Darkslide

    Film Pack Inserted and Darkslide When the film pack is inserted, power is supplied from the battery to ProCam circuits through contacts in the film compartment. If the film speed falls within the “normal” ASA range, the pack has a projecting tab which opens the normally- closed film speed wireform switch in the film compartment (Figure 1-20).
  • Page 29 With the film pack inserted into the ProCam, the Door may now be closed and latched. This action causes the Erect/Door Switch to close, closing VER to B+ and supplying power to the ProCam electronics. Figure 1-22 shows the various stages of switch conditions.
  • Page 30 With the Door/Erect Switch in this condition, electrical circuits are completed to all of the functions noted in Figure 1-23. The ProCam components thus receive power only when the Door is closed and latched, and the ProCam is erected. STROBE...
  • Page 31 In of Figure 1-24B, the Motor drives the Timing Gear and the cam on the face of the Timing Gear forces EOC/S9 down, making contact with VER. With EOC/S9 closed, the Motor will continue to run. Once the cam face moves away from EOC/S9, the Switch contacts open, the Motor shuts off and then coasts to bring the Timing Gear back to the position shown in of Figure 1-24A.

  • Page 32: Exposure Mode

    S9 OPENS Figure 1-26. Counter Opening S9 Wireform Exposure Mode When the Shutter Button (S10/S1) is pressed all the way down, the exposure mode is initiated. During this mode, the Quintic lens is moved to the proper position based on ranging information, the Shutter Blades open to the proper aperture based on light measurements and ranging informa- tion, the Strobe fires, film is exposed, light measurements determine when to shut down the Strobe and close the Shutter Blades, and the film frame is processed.
  • Page 33 Energizing Solenoid 1 causes the Drive Link and Walking Beam to pivot clockwise. This action releases the Kick Spring which strikes an arm on the Quintic lens (Figure 1-28). The Quintic lens thus starts to pivot counterclockwise. MOVING QUINTIC DRIVE LINK KICK SPRING WALKING BEAM Figure 1-28.
  • Page 34 Pawl moved out of the way in the previous step, the Walking Beam is free to pivot under spring action. This releases the Shutter Blades as in previous Polaroid shutter systems. At the first instant of Shutter Blade release after Solenoid 1 is de-...
  • Page 35 When the light measurement determines that the Strobe should be shut down, a pair of series thyristors in the Strobe circuit acts to save any unused energy remain- ing in the flash capacitor. This departure from previous Polaroid strobes results in a shorter recharge time for the succeeding exposure.

  • Page 36: Film Processing And Cycle Advance

    The Solenoid pulls the Drive Link and rotates the Walking Beam clockwise to its original position, closing the Shutter Blades. Solenoid 2, which has been at a holding current level during the exposure, is now de-energized. This disengages the Catch Pawl from the Quintic and allows the Quintic return spring to bring the lens back to its original position.
  • Page 37 EOC/S9 OPEN EOC/S9 CLOSED TIMING GEAR TIMING GEAR DURING EXPOSURE DURING PROCESSING Figure 1-34. EOC/S9 Wireform Switch Closed by Timing Gear Cam TIMING GEAR COUNTER PICK SLIDE Figure 1-35. Film Processing A hook on the Pick grabs the just-exposed film frame and pulls it into the developer rollers which are Motor-driven.
  • Page 38 With the EOP Switch closed, a repeating chime sounds three times, signalling that there is no film left in the pack. If the empty pack is left in the ProCam, the chime will sound whenever the Shutter Button is pressed. This chime will also sound if the ProCam is erected with an empty pack left inside.

  • Page 39: Procam Simplified Diagrams

    ProCam Simplified Diagrams • Figure 1-37 shows a graphic representation of the timing relationship of the ON/OFF states of all switches and signals during one complete ProCam cycle. • Figure 1-38 shows an illustrated description of the sequence of operation.

  • Page 40: Timing Diagram

    Figure 1-37. ProCam Timing Diagram 1 - 34...
  • Page 41 Figure 1-38. Sequence of Operations Pictorial Chart 1 - 35...

  • Page 42: Signal Distribution Diagram

    Figure 1-39. ProCam Signal Distribution Diagram 1 - 36...

  • Page 43: Testing & Adjustments

    2. Testing & Adjustments 2 - 1...
  • Page 44 Table of Contents STAR Tester ..................Basic Operation ................Controls and Indicators ............... Setup and Pre-test Checks ............ProCam Tests .................. Ambient Exposure Test .............. Strobe Exposure (Graywall) Test ..........ZLS (Zonal Lumen Seconds) Graywall Test ......Hybrid (ZLS/Blade Speed) Test ..........

  • Page 45: Testing & Adjustments

    Basic Operation The STAR Tester (Figure 2-1) is an upgrade of the Model 12650-2 (for 600- Series and other cameras. This model (12650-3) permits testing the ProCam and Spectra System Cameras for seven different exposure and timing related operating characteristics, as well as 600-Series and other cameras.

  • Page 46: Star Tester

    20V/2000V Selector With VOLT PROBE jack and DC Voltmeter, allows use of Tester as Voltmeter. VOLT PROBE Jack For checking DC voltages in ProCam under test, with standard probe. STOPS ERROR Meter Digital readout for Ambient, Hybrid, Strobe Exposure Tests.
  • Page 47 For connections to oscilloscope. (Not Shown) Also used for calibrating Tester. * Not used for testing ProCam. Caution: When Tester is not in constant use, turn selector switch to 7000 ZLS position. This saves wear on light source and keeps Tester in neutral state, ready for immediate resumption of testing.

  • Page 48: Setup And Pre-Test Checks

    4.5 feet (135 cm) from a graywall target. Also, be sure that the front of the ProCam is parallel to the graywall (or the long axis of the ProCam, front to back, is at right angles to the graywall).
  • Page 49 4. Connect the Tester to a 115 VAC, 50/60 Hz line. 5. Mount the ProCam on the test horn and connect the cable from the horn to the HORN receptacle on the right side of the Tester. 6. Turn the Tester POWER switch ON (switch will illuminate if the Tester is receiving power).
  • Page 50 10. Using a standard ProCam as a reference, perform, at least weekly, the Ambient Exposure Test to check that the Tester is operating properly. STAR TESTER PROCAM TEST HORN Figure 2-4. Positioning ProCam on Test Horn against Tester. 2 - 8...

  • Page 51: Procam Tests

    ProCam Tests ProCam tests should be performed in the following order: Mandatory Tests • Ambient Exposure at 100 C/FS • Strobe Exposure (Graywall) Additional test (s) required only if the strobe Exposure (Graywall) test reading cannot be corrected by adjusting the IR Exposure Calibration slide: •...

  • Page 52: Ambient Exposure Test

    1. Using the Door Switch Actuator tool #13537, trip the door switch. 2. Place the ProCam on the Test Horn against the Tester window. 3. Slide the AF, Strobe and Audio (beeper) switches on the ProCam into the up (off) position.
  • Page 53 3. If the test reading are not within specification, perform the Ambient Exposure Calibration Slide Adjustment and then retest. Note: If readings are now within specification, perform the Strobe Exposure (Graywall) Test. 4. If adjustment fails to bring the reading within specification, check that the : •...

  • Page 54: Strobe Exposure (Graywall) Test

    4.5-foot (135 cm) graywall exposure. Setup 1. Using the Door Switch Activator tool, trip the door switch on the ProCam. 2. Place the ProCam on the Test Horn on top of the tester, with the lens 4.5 feet from the graywall. Note: •...

  • Page 55: Zls (Zonal Lumen Seconds) Graywall Test

    Setup 1. Using the Door Switch Activator tool, trip the door switch on the ProCam. 2. Place the ProCam on the Test Horn on top of the tester, with the lens 4.5 feet from the graywall. Note: •...

  • Page 56: Hybrid (Zls/Blade Speed) Test

    Setup 1. Using the Door Switch Activator tool, trip the door switch on the ProCam. 2. Place the ProCam on the Test Horn on top of the tester, with the lens 4.5 feet from the graywall. Note: •...

  • Page 57: Blade Speed Test

    1. Using the Door Switch Activator tool, trip the door switch on the ProCam. 2. Place the ProCam on the Test Horn against the Tester window. 3. Slide the AF and Strobe switches on the ProCam into the up (off) position. 4. Cover the Photocell on the ProCam.

  • Page 58: Strobe Integrated Current And Strobe Charge Time Tests

    Setup 1. Using the Door Switch Activator tool, trip the door switch on the ProCam. 2. Place the ProCam on the Test Horn on top of the Tester. 3. Slide all switches on the ProCam into the down (on) position, except for the AF.

  • Page 59: Procam Adjustments

    ProCam Adjustments Ambient Exposure Calibration Slide Adjustment 1. Remove the Top Cover from the ProCam. Note: Reference the Disassembly and Assembly procedures in Section 3 of this Service Manual to remove the Top Cover. Caution: High Voltage Exposure! Voltages up to 320 volts are present on the top flash tube terminal (Green wire) and at various other locations on the Strobe Board.

  • Page 60: Ir Strobe Exposure Calibration Slide Adjustment

    Ambient Calibration Slide (Figure 2-5) to the left, in proportion to the amount the reading is too high. 4. Put the Top Cover in place and then retest the ProCam. If necessary, re-adjust the Ambient Calibration Slide. 5. When the Ambient Exposure Test reading is within specification, replace the Top Cover.

  • Page 61: Hybrid Adjustment (Opening Blade Spring)

    Figure 2-6. Adjusting IR Strobe Exposure Calibration Slide Hybrid Adjustment (Opening Blade Spring) 1. Remove the Top Cover from the ProCam. Note: Reference the Disassembly and Assembly procedures in Section 3 of this Service Manual to remove the Top Cover.
  • Page 62 3. Put the Top Cover on the ProCam and then retest. Note: If necessary, repeat this procedure moving the Opening Blade Spring one notch at a time and replacing the Top cover each time before re- testing. 4. When the Hybrid Test reading is within specification, replace the Top Cover.

  • Page 63: Blade Speed Adjustment (Opening Blade Spring)

    If the Blade Speed is to fast, reposition the Opening Blade Spring one notch to the left. 4. Put the Top Cover on the ProCam and then retest Blade Speed. Note: If necessary, readjust the spring tension.

  • Page 64: Solenoid 1 Adjustment For Quintic Position

    Solenoid 1 Adjustment for Quintic Position If the movable Quintic lens element travels at too high or too low a speed, its final (focused) position may not be correct for the distance measured by the ProCam's sonar system. For example, if the Quintic moves too fast, the Catch Pawl may not be able to stop it at the correct position.)
  • Page 65 4. Put the Top Cover on the ProCam and then retest the ProCam to verify that the Catch Pawl catches (stops) the Quintic at the correct position. Note: If it does not stop at the correct position, re-adjust the adjusting screw of Solenoid 1, 1/2 turn at a time, until the quintic is caught by the Catch Pawl.
  • Page 66 3. Disassembly & Reassembly 3 - 1...
  • Page 67 Shock Hazard from Flash Capacitors .......... Electrostatic Discharge Damage ..........Optical Parts Protection from Scratches and Smudges ....Tools Required for Disassembly and Reassembly ...... ProCam Disassembly and Reassembly Procedures ....... Top Cover and Mid Cover ............Removal ................Replacement ................
  • Page 68 Cone Cap ..................3-17 Removal ................3-17 Replacement ................3-17 Shutter Assembly ................ 3-18 Removal ................3-18 Replacement ................3-19 Exposure and Ranging PC Boards ..........3-19 Removal ................3-19 Replacement ................3-20 Door Assembly ................3-21 Removal ................3-21 Replacement ................
  • Page 69 Motor ..................3-37 Removal ................3-37 Replacement ................3-37 Shutter Assembly ................3-38 Disassembly ................3-38 Reassembly ................. 3-44 Drive Assembly ................3-45 Disassembly ................3-45 Reassembly ................. 3-47 3 - 4...

  • Page 70: General Instructions And Tools Required

    Dump Probe (P/N 13119). Electrostatic Discharge Damage Sensitive components on the ProCam PC Boards can easily be damaged by static electricity. Use a wrist strap and grounded anti-static mat when working on or near PC boards.

  • Page 71: Optical Parts Protection From Scratches And Smudges

    Optical Parts Protection from Scratches and Smudges When handling Viewfinder or Shutter Assemblies, wear finger cots or lintless gloves; also, use plastic tools (e.g., greenstick) or tools with coated jaws, rather than metal tools, whenever practical. Tools Required for Disassembly and Reassembly •...

  • Page 72: Procam Disassembly And Reassembly Procedures

    Remove Bottom Cover Insert and remaining two square drive lugs screws (Figure 3-3). Caution: Keep fingers away from right (strobe) side of ProCam when lifting off the Mid Cover — Flash capacitor connections are exposed (Figure 3-4). 3 - 7...
  • Page 73 PROCAM HAND STRAP HAND STRAP LUG Figure 3-2. Removing Hand Strap BOTTOM COVER INSERT PROCAM HAND STRAP Figure 3-3. Removing Cover Inserts 3 - 8...
  • Page 74 e. Remove Mid Cover but leave Bottom Cover in place (Figure 3-4). Lift back of Mid Cover first; Push in button marked FILM (Door Latch) and lift off the Mid Cover. Caution: AS SOON AS FLASH CAPACITOR TERMINALS ARE ACCESSIBLE, DISCHARGE BOTH CAPACITORS WITH DUMP PROBE #13119.
  • Page 75 Notes: • When replacing the Mid Cover, the spring-loaded lens assembly at the rear of the Viewfinder must be rotated 90 toward the front of the ProCam and kept tucked in under the VF Side Cover (Figure 3-5). • Also, the molded vertical partition A on the Mid Cover (Figure 3-5) must slip down between this VF rear lens assembly and the vertical Interface PC Board.

  • Page 76: Removal

    Figure 3-6. Removing Front Bezel 2. Replacment With ProCam erected, spring out the Viewfinder Side Cover to accept the tab at the bottom right end of the Bezel (Figure 3-6), and at the same time locate the two tabs along the bottom edge of the Bezel into their openings in the front lip of the Bellows/Cone Assembly.

  • Page 77: Removal

    SLOTTED TAB ON VIEWFINDER FINGER ON BELLOWS/CONE ASSEMBLY PROCAM Figure 3-7. Removing Viewfinder Assembly b. Remove the Viewfinder Eyecup by using tweezers to release the Eyecup Retainer band, then pulling the Eyecup off the Viewfinder (Figure 3-8). 3 - 12...
  • Page 78 SPREAD ENDS AFTER UNLATCHU\ING SQUEEZE ENDS TOGETHER TO RELEASE Figure 3-8. Removing Retainer and Eyecup from Viewfinder 2. Replacement Follow removal steps in reverse order. 3 - 13...

  • Page 79: Removal

    Close-Up Lens Switch 1. Removal Remove the Close-Up Lens Switch by springing out the catch at the bottom of the Lens Mounting Plate and separating the Retainer from the Switch (Figure 3-9). CLOSE-UP LENS SWITCH Figure 3-9. Removing Close-Up Lens Switch 2.

  • Page 80: Removal

    Photodiode 1. Removal a. Remove the Photodiode Cap by gently prying up the catch finger on the top. b. Lift the Cap off the Shutter Baseblock and lift out the Photodiode with its cable assembly attached (Figure 3-11). CATCH PHOTODIODE SHUTTER PHOTODIODE BASEBLOCK...
  • Page 81 Exposure Board 1. Disconnecting Encoder, Piezo and Solenoid 1/ 2 Unplug the Encoder (J12), Piezo (J13) and Solenoid 1/2 (J11) connectors from the Exposure PC Board (Figure 3-12). SOLENOID 1/2 ENCODER J 11 J 12 J 13 PIEZO EXPOSURE BOARD Figure 3-12.

  • Page 82: Removal

    Transducer Housing Assembly and Transducer 1. Removal Unlatch the top T leg of the Transducer Housing Assembly from the Lens Mounting Plate, then the bottom T leg, and lift it off the Lens Mounting Plate (Figure 3-13). CONE CAP TRANSDUCER HOUSING Figure 3-13.

  • Page 83: Removal

    Shutter Assembly 1. Removal Note: Refer to Shutter Disassembly and Reassembly procedures on page 3- for instructions on how to disassemble and reassemble the Shutter Assembly. a. Using a greenstick, gently pry out the catch A on the Bellows/Cone Assembly, just enough to release it from the tab B on the right (Strobe) end of the Shutter Baseblock (Figure 3-14).

  • Page 84: Removal

    2. Replacement a. Replace the Rear Lens Baffle (Figure 3-14), then slide the Shutter Assembly straight down into the Bellows/Cone Assembly. Be sure that the locking catches at left and right ends engage the Shutter Baseblock. b. Replace the Cone Cap over the Rear Lens Baffle and secure it with its flat head screw.

  • Page 85: Replacement

    c. Remove the two tubular Spacers between the Exposure and Ranging Boards, and remove the Ranging Board with the Transducer connected to it (Figure 3-16). SPACERS RANGING BOARD Figure 3-16. Removing Ranging PC board d. Remove the three Bottom Cover Screws (Fig. 3-17), but leave Bottom Cover in place.

  • Page 86: Removal

    Door Assembly 1. Removal a. Open the Door . b. Remove the Door Assembly by springing out the right side plate to release it from its pivot pin (Figure 3-18). PIVOT PIN DOOR ASSEMBLY SIDE PLATE Figure 3-18. Removing Door Assembly 2.

  • Page 87: Removal

    Rear Panel 1. Removal Using a greenstick, pry the Rear Panel upward, then tilt it backward to disengage the two locating pins on its inside surface from their holes in the Interface PC Board (Figure 3-19). INTERFACE BOARD PINS LIFT AND TIP REAR PANEL BACKWARD Figure 3-19.
  • Page 88 c. Note the molded projecting fin on the inside of the Rear Panel, which shields CHARGE LED-1 from READY LED-2 on the Interface PC Board. d. Slide the Rear Panel down into position, positioning the lip along its bottom edge on the inside of the Bottom Cover. e.

  • Page 89: Removal

    Strobe Board, Erect Latch, and Cone Assembly 1. Removal a. Lift the cabling from the Interface Board out of the way, to gain access to the Erect Latch Spring (Figure 3-21). Now unhook one end of the Erect Latch Spring from the Erect Latch. SPRING J 17 ERECT LATCH...
  • Page 90 c. Lift the Strobe Board out of the Camera and remove the Erect Latch Spring and Erect Latch. d. Now lift the Cone Assembly off the Bottom Cover (Figure 3-23). BELLOWS/CONE ASSEMBLY Figure 3-23. Removing Cone Assembly from Bottom Cover 3 - 25...

  • Page 91: Replacement

    2. Replacement Follow the removal steps in reverse order. Note: Be sure that the two molded pins A on the bottom of the Strobe Mounting Bracket seat in their holes B in the Mainframe tabs (Figure 3-24). STROBE MOUNTING BRACKET MAINFRAME Figure 3-24.

  • Page 92: Removal

    Interface Board and Date Module 1. Removal a. Pull the end of the Flex out of J5 on the Interface Board (Figure 3-25). DATE MODULE CABLE INTERFACE BOARD FLEX Figure 3-25. Removing Flex from Interface Board b. Disconnect the Date Module cable from the Interface Board and lift out the Interface Board.

  • Page 93: Replacement

    MAINFRAME DEPRESS LOCKING SHOULDER DATE MODULE Fig. 3-26. Removing Date Module from Mainframe 2. Replacement Follow removal steps in reverse order. 3 - 28...

  • Page 94: Removal

    Motor Flex 1. Removal a. Remove the Motor Flex Retainer from the Gear Drive Cover (Figure 3-27) by releasing the two latching fingers: insert a narrow blade into openings A and B and turn blade in direction shown by arrows. (RELEASE TABS BY TILTING BLADE IN DIRECTION OF ARROWS) MOTOR...

  • Page 95: Replacement

    FLEX MOTOR (MAINFRAME SHOWN INVERTED) SPEED SWITCH PRY UP GEAR DRIVE HERE DEPRESS WIREFORMS AND LIFT INTERNAL TANG Figure 3-28. Removing Motor Flex from Mainframe and Motor 2. Replacment Follow removal steps in reverse order. Note: The silver (conductor) side of Flex faces rear of Motor when inserted into Motor.

  • Page 96: Removal

    Bellows/Cone Assembly 1. Removal a. Remove the two screws holding the Erect System to the Mainframe (Figure 3-29). SPRING OUT LOCKING TAB MAINFRAME ERECT SYSTEM Figure 3-29. Removing Screws Holding Erect System b. Remove the hold-down screw at the end of the Erect System hinge pin (Figure 3-30).
  • Page 97 HINGE PIN HOLD-DOWN SCREW (SOME MODELS Figure 3-30. Removing Hold-Down Screws at End of Erect System d. Lift the Bellows/Cone Assembly off the two locating pins on the Mainframe (Figure 3-31). e. Using one hand to keep the Bellows/Cone Assembly collapsed, lift up the Erect Spring end of the Bellows/Cone Assembly and slide it out of the Mainframe (Figure 3-31).
  • Page 98 2. Replacement a. Manually push in the spring-loaded erecting mechanism A and hold the Bellows/Cone Assembly down in a collapsed position (Figure 3-32). b. Keeping the Assembly collapsed and at a slight angle to the Mainframe (Figure 3-32), insert the tabs A into slots B in the rear wall of the Gear Drive, and be sure the end of the hinge pin C seats in its recess D.
  • Page 99 c. With the Assembly still held in a collapsed position, lower it onto Mainframe until it seats over the two locating pins E (Figure 3-33). Apply enough downward pressure until the legs F are fully engaged over their shoulders G and snap into place. d.

  • Page 100: Removal

    Piezo 1. Removal Remove Piezo from its Mainframe cavity by inserting the tips of needlenose pliers (or a spanner) into Cover sockets and rotating the Cover CCW slightly (Figure 3-34). PIEZO Figure 3-34. Removing Piezo from Mainframe 2. Replacement Follow removal steps in reverse order. 3 - 35...

  • Page 101: Removal

    Door Latch/Erect Switch Assembly 1. Removal a. Remove the three screws holding the Door Latch/Erect Switch Assembly to the Mainframe (Figure 3-35). This also frees the Erect Switch Retainer and cable hold-down; don’t lose it. b. The Erect microswitch and cable may be removed from the base of the Door Latch Assembly by gently springing out the catches at the front and back of the Switch body.

  • Page 102: Removal

    Motor 1. Removal Remove the Motor with mounted pinion gear by pushing it in the direction shown by the arrow in Figure 3-36 (to free the Motor hub), then lifting the Motor out of its Mainframe cavity. LIFT MOTOR END AND SLIDE OUT HUB END Figure 3-36.

  • Page 103: Shutter Assembly

    Shutter Assembly 1. Disassembly Note: In the following steps, it is assumed that the Shutter Assembly has been removed from the Bellows/Cone Assembly (Figure 3-14), and the following parts have been removed/disconnected from the Shutter Assembly: • Front Bezel (Figure 3-6) •...
  • Page 104 d. Remove the Lens Mounting Plate from the Baseblock by releasing locking fingers A - E in order, using a greenstick (Figure 3-38). A molded locating pin on the left end of the Baseblock makes it necessary to keep the Lens Mounting Plate level (kept in the same plane as the Baseblock) and lifted straight off.
  • Page 105 CATCH PAWL SPRING WALKING BEAM/ INERTIA/KICK SPRING ASSEMBLY CATCH PAWL Figure 3-39. Removing Catch Pawl and Spring, and Walking Beam/Inertia/Kick Spring Assembly h. Unhook the upper leg of the Quintic Return Spring (Figure 3-40). i. Remove (and disassemble, if necessary) the Quintic Moving Lens Assembly (wear lintless cotton gloves or finger cots) (Figure 3-40).
  • Page 106 j. Carefully remove the IR and Visible Light Calibration Slides, noting orientation and order for future reassembly (Figure 3-41). k. Using tweezers and wearing lintless gloves or finger cots, carefully remove the shutter blades, noting orientation and order. Suggestion: put them aside on a clean surface, in the position and order removed (Figure 3-41).
  • Page 107 m. Using greenstick or small screwdriver, release the top spring tab of the Rear Lens Assembly Retainer and remove it and the Rear Lens Assembly (Figure 3-42). DRIVE LINK REAR LENS ASSEMBLY RETAINER SOLENOID 1 CATCH BASEBLOCK Figure 3-42. Removing Drive Link and Rear Lens Assembly from Baseblock n.
  • Page 108 o. To remove Sol 2, depress the Baseblock locking tab “A” and simultaneously pry the Solenoid upward out of the Baseblock (Figure 3-44). p. Remove the Encoder photodiode and Cable Assembly by springing tab B outward and then upward (Figure 3-44). BASEBLOCK LOCKING TAB A SOLENOID 2...
  • Page 109 Reassembly Follow disassembly steps in reverse order. Notes: • When replacing Shutter Blades in Baseblock, temporarily insert a 3/32" (.093") diameter metal dowel pin in Baseblock (Fig.ure3-45) to aid in locating the Blades. • Remove pin after Walking Beam/Inertia/Kick Spring Assembly is in place.
  • Page 110 Note: The following steps assume that Motor Flex Retainer, Motor Flex Assembly and the Motor have already been removed from the ProCam. a. Using a greenstick or small flat screwdriver, remove the Gear Drive Cover by releasing locking fingers at locations A through D in Figure 3-46.
  • Page 111 WIREFORM GEAR 1 WASHER SWITCHBLOCK Figure 3-47. Washer and Gear removal from Gear Drive d. Carefully lift off Counter Wheel, first freeing Counter Wheel Spring hook end from Mainframe (Figure 3-48). e. Remove Pack Pawl Spring and Pack Pawl. f. Remove, in this order, Gear #4, Gear #3, Gear #2, Gear #1 and Timing Gear (Figure 3-47).
  • Page 112 COUNTER WHEEL GEAR 2 GEAR 3 GEAR 4 SPRING PICK PAWL GEAR 1 HOOK END OF COUNTER WHEEL SPRING TIMING GEAR PICK Figure 3-48. Removing Counter Wheel, Pack Pawl, Gears and Pick 2. Drive Reassembly Follow disassembly steps in reverse order. 3 - 47...

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