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Spectra/Image Repair Manual

1. ee eects ee ee cee ee eee SELF TIMER SW yppa ao Lea joan due l mel garus ay os ae 15188 12 CR lase s wie AE i 1 tes ra or 6 L 1 r eek lo OTE yey dh o E t aoe ce 93 02 Re a BC 178 5 vor sec wad ee D a Left Side of Schematic 65 Schematic joins here in center Spectra System Image System Service Manual ust Proc sareste Hafs os BG 12 2 o ol 2 ES l 1 t m es r FCT wozzur 1 Le su 1 3 1 L ERECT Sw ta 3 j b U masaysn 1 poa KRL E L 1 TR AMOUR Ko Low Lang naeg pna w j zo j 121 i o L himassa Re e 102 4 322 Lcs a zsc3273 2 TR Ct P n3 L q N 95 IIT ET H KEO NOTES H H CL1SCLE TIVER LOO SELF TIMER Soru PIEZO BELPra WI IIED COUPORENT i BEEPEA SWITCH ANO FEATURES E IC ON IMODA Owi Y 1160 SEC TABLE On Daawing 076105174 D H Led Shcws pe OFF POSITION IVER WUST CLOSE ro vis PUY POLAROID gt w T7CI77 FR ERFOSURE FLEE AX ba H FIRST BEFORE YER CLOSES TO S10 S R SE KCL MATI KRE A07 j H La Seco pn OPEN POSITION PIEZO OIGADLTO Lu POLAROID Pa TEK MEZA SIMCAE
2. 4 Leave the Photocell on the camera uncovered Test Procedure 1 Press the Shutter Button fully and record the Stops Error Meter reading Compare the reading to the Specification 2 Repeat the process two more times recording all readings 3 If the readings are within spec proceed to the Strobe Exposure Graywall Test 4 If the test readings are not within Specification perform the Adjustment Procedure 1 for Ambient Exposure Calibration Slide and retest If reading is now within spec proceed to the next test Strobe Exposure Graywall Test 5 If adjustment fails to bring the reading within spec check that the green ambient filter is in the proper position check that the photocell cap is in position 85 Spectra System Image System Service Manual check that the photocell is seated in the base block 6 If the above steps do not bring the Ambient Exposure reading within spec replace the Exposure Flex and or the Shutter Assembly and retest STROBE EXPOSURE GRAYWALL Purpose This test measures the resultant energy on the film plane during a 4 5 foot 135 cm graywall exposure Test Setup 1 Trip the Door Switch on the camera into the down position 2 Place the camera on the Horn on top of the Tester with the lens 4 5 ft from the graywall The front of the camera must be parallel to graywall and the area visible in the view finder must be clear of objects 3 Slide all camera switches u
3. 12 REMOVING GEAR TRAIN COVER Parts which must be removed before doing this procedure Top Mid amp Bottom Covers NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE P N 13123 a Remove Flapper Door Figure 4 13a by gently springing right pivot support arm of Main Frame away from Door pivot pin CAUTION Keep finger over Door spring center to prevent pop out and loss of spring For steps b through f see Figure 4 13b b Remove Motor Gear Drive Flex Assembly from Motor with greenstick c Free Flex from beneath retaining tabs on Gear Train Cover 131 Spectra System Image System Service Manual d To remove Flex Retainer from Cover see Figure 4 13c insert small screwdriver in right hand hole and tilt handle down so tip goes upward Then insert in left hole and move handle to right Lift out Flex Retainer e Lift top left corner of Flex away from guide tab using flat blade f Using tweezers carefully disconnect Flex contacts from Film Switch g Free the edge of the Flex from beneath the small tab by pushing Flex to left Door Spring Flapper Door Right Pivot Support Figure 4 13a Flapper Door Removal Motor Gear Drive Flex Assembly Green Stick Motor Fig 4 136 Removing Motor Gear Train Flex 132 Spectra System Image System Service Manual h Remove Door Release Button by pushing it forward and lifting up Figure 4 13d i Insert
4. Polaroid Repair Manual Spectra Image Cameras September 1996 Americas Business Center Technical Services 201 Burlington Road Bedford MA 01730 TEL 1 781 386 5309 FAX 1 781 386 5988 Spectra System Image System Service Manual Manual Contents Astor IS TAO Sl eros 3 Section 1 General DescriptiON oooooonnnnnconcconononnnnaancnns 7 Section 2 Theory of Operation eee eee ene 21 Section 3 Testing amp AdjustMents cccconccccooncccccnncnnnnnncnnnns 67 Section 4 Disassembly ReasseMmblyY ooooooccccccccoccccncccnnnnos 116 Spectra System Image System Service Manual List of Illustrations Section 1 General Description Page Figure 1 1 Spectra Camera in Closed Position s sees e ce e e c xx e eee e e ree eee 9 Figure 1 2 Spectra Camera in Open Position Front View eee eee eee e 9 Figure 1 3 Spectra Camera in Open Position Back View 10 Figure 1 4 Spectra Film Dimensions vs SX 70 and GOU 11 Figure 1 5 Spectra Camera Quintic Lens Svstem eee ee 12 Figure 1 6 Thyristor Electronic FlasSh ooooocccnnnnnnnnnccccconoccncnncccnnnnncnnnnnnanarnninno 13 Figure 1 7 Spectra Sonar Rangefinder ceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 14 Figure 1 8 Spectra Dual Photocell System for Light Measuements 15 Figure 1 9 Electronic Trim Switch eee eee 15 Figure 1 10 Film Speed Switch sss eee 16 Figure 1 11 Self Timer Switch and Warning LED 17 Figure 1 12 Erecti
5. b Orient the Door Latch over the Main Frame and Gear Train and install it by snapping the tabs into place to lock the latch to the frame Figure 4 14d Be sure the lower tab of the latch is under the metal spring as seen through the opening in the middle of the main frame Figure 4 14d c Install Gear 2 d Install Gear 3 e Load the Counter Wheel Spring into the cavity on the Counter Wheel and install the Counter over its shaft on the Gear Train Rotate the Counter about one turn counter clockwise The Counter will rise over the tab and settle into position When correctly installed the two pins on the wheel will be at about the one and two o clock positions See Figure 4 14e f Install the Pick g Install the Pack Pawl with the spring attached onto the Gear Train Attach the other end of the spring to the Pick h Replace the Timing Gear orienting it so that the ends of the cam segment are at the five and nine o clock positions Figure 4 14 e Replace the Pack Counter if one was removed at disassembly j Install the Erect Switch Link so that the left edge is in the vertical position The upper portion of the link sits in the cutout on the side of the cone 137 Spectra System Image System Service Manual k Position the Door Link Spring on the Door Link and carefully install them on the Gear Train The upper spring arm should be locked under the tab as indicated in Figure 4 14c The Door Link must be in the up
6. 110 Spectra System Image System Service Manual NO STROBE CHARGE IS STROBE SWITCH IN UP POSITION NO YES CORRECT SWITCH ARE ALL SUB ASSEMBLIES POSITION SEATED CONNECTED NO YES IS CHG LED ON NO YES IS J3 PIN 7 HIGH IS ACCESSORY SWITCH HEIGHT OK REPLACE STROBE BOARD NO YES REPLACE EM REPLACE ACCESSORY BOARD 111 Spectra System Image System Service Manual RANGING IMPROPERLY CHECK CONNECTIONS AT J1 J3 J4 J5 J6 J7 J8 413 J19 J20 J21 J22 IS AF SWITCH IN THE UP POSITION PUT AF SWITCH IN UP POSITION AND RETEST CAMERA ON AUTOMATIC TESTER WHEN PRESSING SID SIR SWITCH FOR PREVIEW IS THERE A DISPLAY IN VIEWFINDER f CHECK SIGNALS AT F M CONNECTOR J4 PIN 3 HI PIN 4 LO PIN 5 LO PIN 8 LO PIN 9 LO CHECK THESE POINTS WITH LOGIC PROBE WITH JUST VER APPLIED TO CAMERA ARE THESE TEST POINTS IN PROPER STATE REPLACE F M REPLACE X DUCER WITH KNOWN GOOD UNIT amp RETEST ON AUTOMATIC TESTER DOES CAMERA STILL RANGE IMPROPERLY YES IS DISPLAY BOARD CONNECTOR J24 OK REPLACE TRANSDUCER REPLACE R M CHECK FOR DAMAGED DISPLAY BOARD CONNECTOR AND REPLACE IF NECESSARY IF OK RESEAT CONNECTORS amp RETEST 112 Spectra System Image System Service Manual CONTINUOUS CYCLE CHECK ALL CONNECTIONS AT CONNECTORS J1 J4 J25 WHEN BATTERY POWER IS APPLIED W
7. Calibration Slide fails to bring the readings within specification refer to steps 4 amp 5 of the Strobe Exposure test procedure 93 Spectra System Image System Service Manual IR Strobe Calibration Slide Figure 3 12 Adjusting the IR Strobe Exposure Calibration Slide HYBRID ADJUSTMENT OPENING BLADE SPRING Adjustment Procedure 1 Remove the Top Cover from the camera see Figure 3 10 CAUTION HIGH VOLTAGE EXPOSURE VOLTAGES UP TO 320V ARE PRESENT ON TOP FLASH TUBE TERMINAL GREEN WIRE AND AT VARIOUS OTHER LOCATIONS ON THE STROBE BOARD 2 If the Hybrid ZLS Blade Speed Test readings are too low increase the tension on the Opening Blade Spring by moving it one notch to the right when facing the back of the Camera See Figure 3 13 94 Spectra System Image System Service Manual 3 If the Hybrid Test readings are too high decrease the tension on the Opening Blade Spring by moving it one notch to the left when facing the back of the camera See Figure 3 13 4 Put the Test Top Cover on the camera and retest Repeat the procedure if necessary moving the Opening Blade Spring one notch at a time and replacing the Test Top Cover each time before retesting 5 When the Hybrid Test Reading is within specification replace the Test Top Cover with the camera s own Top Cover NOTE If changing the tension on the Opening Blade Spring fails to bring the readings into specification refer to steps 4 amp 5 of the Hyb
8. End of Exposure CVvGle 61 EOC S9 Wireform Switch Closed by Timing Gear Cam 62 FilmiProceSsing acne nd Geet se lick Sneed eee 62 Closing the End Of Pack EOP Swtch ee 63 Section 3 Testing and Adjustments Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure 3 5 Figure 3 6 Figure 3 7 Test Setup for Spectra Functional Test 70 Close the Spectra Camera Door Latch 71 Covering Transducer to Simulate an Infinity Xposure 73 Quintic Lens Moves to Short Distance Setting 74 Quintic Lens Moves to Infinity Setting ee 75 Star Tester 12650 3 Controls and Indicators 80 Locating Tester in Relation to Graywall Tage 81 4 Service Manual Spectra System Image System Service Manual Figure 3 8 Trip Spectra System Door Switch to DOWN Position Before Test 82 Figure 3 9 Positioning Camera on Horn Against Star Teater eee 83 Figure 3 10 Removing Top Cover from Spectra Camera eee eens 92 Figure 3 11 Adjusting Ambient visible light Calibration Slide 92 Figure 3 12 Adjusting the IR Strobe Exposure Calibration Slide 94 Figure 3 13 Hybrid Test Adjustment Opening Blade Spring Tension Adj 95 Figure 3 14 Adjusting Solenoid 1 to Change Quintic Speed sss sees 98 Section 4 Disassembly and Reassembly Figure 4 1 Removing Top Covel ccccccccccececeeeeemecceceeeeeeeeeeeeeeseeeeeeeeeemeneaes 120 Figure 4 2 Dischargin
9. HOUuSiNQ cocccccccccccccccccccccomentcninnnininnnn 142 Figure 4 17 Removing Transducer Housing and Reflector Assenblies 143 Figure 4 18 Removing lens Mounting Plate eee eee e ee 144 Figure 4 19 Work Support Fixture Z123122 eee 145 Spectra System Image System Service Manual Figure 4 19a Removing Shutter Component ccccccceeeeeeemeeeeeeeeeeeeeetees 146 Figure 4 19b Disassembling the Moving Quintic Lens sss esse 146 Figure 4 19c Disassembling the Walking Beam Inertia Assembly 146 Figure 4 19d Reassembling Shutter Blades sees 148 Figure 4 19e Reassembling Walking beam and Inea eee e 148 Figure 4 19f Reassembling Walking Beam to Drive Link and Shutter Blades 149 Figure 4 19g Shutter Assembly Componente ccccccecceeeenecceeeeeeeeeeeeeees 149 Figure 4 19h Install Catch Pawl and Quintic lena eee e 150 Figure 4 20 Removing Entire Shutter Assembly as a Unit 152 Figure 4 21 Removing Piezo Assembly and Wies eee eee 153 Figure 4 22 Removing Solenoids 1 and 2 from Baseblock eeeees 154 Figure 4 23 Removing Drive link from Baseblock eee eee eee 156 Figure 4 24 Removing Erecting Link from Main Frame 157 Figure 4 25 Removing Erect Spring Button Latch and Link Break 158 Figure 4 26 Removing Bellows Boot sse esse 159 Figure 4 27 Removing Viewfinder Assembly eee merene eeereeessseeene 160 Figure 4 28 Installing Viewfinder As
10. It is a three element 125mm lens system The front element is the main meniscus lens which is similar to taking lenses found in other Polaroid cameras The second and third elements are aspheric lenses The first and third elements are fixed The middle element called the Quinticsector pivots in an arc through the optical path of light entering the front lens It is the movement of the Quinticsector that results in the actual focusing function 35 Spectra System Image System Service Manual Fixed Quintic Lens Moving Quintic Lens Transistor LED ara l ie iniscus Lens Figure 2 11 Components Of Spectra Quintic Lens System Refer to Figures 2 12 2 13 2 14 and 2 15 when reading the description of Quintic Lens operation which follows Also refer to the Sequence of Operation portion of this section for a more detailed description of the sequence of events which moves the camera lenses into proper focus 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 Along the edge of the Quintic sector are a series of teeth and cutouts in the plastic frame On one side of the plastic frame is an LED which emits light and on the other side is a phototransistor which reads the light These two
11. Light Dual cell silicon photodiode measures visible and infrared Measurement light strobe reflection as part of exposure determination System Electronic trim lighten darken may be used to increase or decrease length of exposure Film Speed Used to automatically compensate for slow film Switch Activated by insertion of film pack Viewfinder Erecting telescopic type 100 viewing no parallax at 6 ft 1 8m Six lenses four mirrors two prisms 0 5X magnification Field is defined within black border Three color LED display of subject distance and picture conditions visible in viewfinder eyepiece during preview mode 6 volt battery in Spectra film pack Camera Weight 1 Ib 12 1 2 oz 0 8kg without film pack 20 Spectra System Image System Service Manual SECTION 2 THEORY OF OPERATION CONTENTS A INTRODUCTION ii aire 23 B NEWFEATURES coin 24 SPECTRA SYSTEM SPAR THYRISTOR STROBE ee 24 STROBE SPECIFICA TON Soto ENTER Pall hepsi theres alates 26 SPECTRA SY STEM FILM dd T 28 VIEWFINDER HHT 29 VIEWFINDER DISPLAYS isaac ts ATA td bid 32 QUINTIC LENS SYSTEM neos ic ERT 92T e ARR agile td 33 EXPOSURE CONTRO iio iii id 40 FIRST EIGHT DETECT id 44 DUAL PHOTODIODE isch cee ang Ein 45 VIEWFINDER DISPLAY BRIGHTNESS ee ee eee 45 SPECTRA SYSTEM AUTOEOCUS er ernie eeee ee nennnaeeeeesew esse sennneeeeeeeenneed 46 ELECTRONIG TRIM sas ocio a eee ve SS uence oe eda eee chet ene a 46 FILM SPEED SWI
12. PCA KRY 32 sert MATIC 70109078 taa smc dm HIGH POSITION DISTANCE DISPLAYED p FEET dL POL APOIO PR TPG IDI ates Brr ECE assy gt LE SHOWN Im STROBE POSITION EEE TIDICIAN Paar PM AMOID Pu Ira FEATURES ELER Le C n wia THE POSE IOn LO SHOE tn NOM TAAL Mra KATE TECOOIAA o mi PEN POSITION AUTO F A E VA Sees Ja One OFER E rea Bee Yan POP ADID re Tee dic OSM Av PRIM aS C tTa 3 SHOWN IR OPEN POSITION NOMINAL Fils SPEEO SKD an soga IR OPEN POSITION FN U PES WOT Lety ps clio 110 sodes IH OPEN POSITION DANK IO Am jau git 1 9 Eu SHORE fm OPEN POSITION MOT AT ZNO OF EIC TURE RRC RIK tie SHOWN In CAMERA CAECTEO DOOR CLOSED POSTION YER COBMECTED TO OROUNO IF caat Ra sre OA 000R Schematic joins here in center Right Side of 8 1 2 x 11 inch Schematic 66 Spectra System Image System Service Manual SECTION 3 TESTING AND ADJUSTMENTS A SPECTRA CAMERA STAR TESTER SPECIFICATIONS eee 68 B SPECTRA SYSTEM FUNCTIONAL TEST neee 70 GENERAL ice okt HRE ota ta ober te eee Pee Cale ote tee aN seal teed eae ote rir ak 70 EQUIPMENT REQUIRED acts dE 70 TEST SETUP tl Ada 70 TEST PROCEDURE TT 71 C STAR TESTER MODEL 12650 3000 eee R LTR AE Aaaa anno SL CTET TET 78 BASIC DESCRIPTION nereis aaa aeaa p a aa e o iaaa ET aaia 78 STAR TESTER SETUP AND PRETEST CHECKS ee 80 ORDER OF SPECTRA SYSTEM TESTS iresi 9 0902 aga ATRE a 7090A ET ragon Tayt s 83 SPECTRA SYSTEM TEST PROCEDURES sese 85 AMB
13. Spectra Film Dimensions vs SX 70 and 600 Film 11 Spectra System Image System Service Manual D CAMERA TECHNOLOGY Spectra borrows from some of the proven features of earlier Polaroid models with which you are probably familiar However it also contains new innovative technology which sets it distinctly apart from all other photographic systems This section will explain some of the features of the camera Fora more detailed discussion of these features refer to Section 2 Theory of Operation QUINTIC LENS SYSTEM Fixed Aspheric Lens Moving Quintic Lens Main Meniscus Lens Figure 1 5 Spectra Camera Quintic Lens System Perhaps the most innovative feature of the Spectra System camera is its Quintic lens system Most cameras employ spherical evenly shaped convex or concave lenses The Spectra camera relies on the relationship of aspherical irregularly shaped lenses The camera has a three lens system The main meniscus lens is similar to those in other cameras The second lens is a moving aspherical lens which swings in front of a fixed aspherical lens The interaction of the moving and fixed aspherical lenses produces ten different zones of focus The position at which the moving lens stops in front of the fixed lens is determined by ranging information produced by the sonar transducer 12 Spectra System Image System Service Manual THYRISTOR ELECTRONIC FLASH Flash PC Board Flash Tube Housing Flas
14. amp J16 orange Unsolder Trigger Coil Wire Figure 4 10 Removing Strobe Board 128 Spectra System Image System Service Manual 10 REMOVING DISPLAY PRISM ASSEMBLY AND FEATURES FLEX Parts which must be removed before doing this procedure Top Mid and Bottom Covers NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE P N 13123 a Insert Features Flex Removal Tool P N 13124 into tracks in viewfinder to release spring fingers b Insert tip of screwdriver as shown Using it as a lever and the erecting spring as a fulcrum gently pull out the Prism to free the end of the Features Flex along with the Prism and Features Board c Remove two Piezo wires from connector mounted on Flex If push on terminals are present gently pull out wires with tweezers Note that on some models these wires may be soldered and removal requires unsoldering d Remove Features Flex from Features Board grasping Flex firmly with right angle needlenose pliers e If it is necessary to remove Features Flex with self timer LED remove Shutter Front Housing see Step 14 amp Figure 4 17 and gently lift Flex with LED connector out from under leg near LED f Remove Features Flex from Exposure Flex with needlenose right angle pliers Features Flex i Viewfinder ce Prism amp Features Raard Erecting Spring Pa Features Flex Removal Tool 13124 C Figure 4 11 Removing Disp
15. damage binding etc Correct any problems that are found reassemble the shutter and retest the camera 97 Spectra System Image System Service Manual Turn CCW to Increase Quintic Speed Turn CW to Decrease Quintic Speed Y Solenoid Adjusting Screw Figure 3 14 Adjusting Solenoid 1 to Change Quintic Speed 98 Spectra System Image System Service Manual E SPECTRA TROUBLESHOOTING CHARTS LOGIC PROBE OPERATION MODEL PRB 50 SAFETY PRECAUTIONS FOR OPERATING ELECTRONIC LOGIC PROBE 1 Connect the black lead to ground earth connect the red lead to Vbat at power supply 2 If Vbat is within legal operating limits the pulse LED will blink once and turn off The V will remain off 3 If Vbat is too high the pulse LED will remain on REMOVE BLACK AND RED LEADS FROM THE POWER SUPPLY IMMEDIATELY 4 If Vbat is too low the logic LEDs will be off and both the V and V LEDs will be on REMOVE BLACK AND RED LEADS FROM THE POWER SUPPLY IMMEDIATELY When analyzing a 7000 camera proceed as follows a Set the TTL CMOS switch to CMOS b Place the probe tip onto the circuit test point c Set the LATCH switch to the LATCH position d Hold the probe in place until the pulse LED lights CAUTION A false signal may latch the logic probe if during the test the probe tip is removed from the test point or Vbat is removed from the camera or the probe e Return the switch to the NORMAL position f Retest to con
16. devices are part of the encoder circuit As the cutouts in the frame pass between these two devices the encoder circuit takes a count of the pulses which result from the frame cutouts breaking the light path between LED and phototransistor The first pulse is the First Light Detect which is the starting marker for all exposure calculations These pulses correspond to the ten focus zones created by the interaction of the aspheric lenses 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 The Quintic sector is thus halted when the portion of the lens 36 Spectra System Image System Service Manual which optically corresponds to the subject distance is positioned behind the taking lens At this point solenoid 1 is deenergized releasing the walking beam The opening blade spring pulls the walking beam in a counterclockwise direction and the shutter blades open When the exposure is completed solenoid A1 is again energized pulling in the walking beam and closing the shutter blades Solenoid 2 then releases allowing the Quintic return spring to force the Quintic sector to return to its original setting This action also causes the catch paws to engage the walking bea
17. if conditions are not good to take a picture Additionally you will hear warning beeps if scene conditions are not conducive to good pictures or you may hear chimes if you are out of film 18 Spectra System Image System Service Manual SPECTRA CAMERA CONTROL PANEL Wireless Flash Remote Socket Charging r SYSTEM RO aoe Counter Window Feet or Meters Audio Signal Selector On Off lAutoFoc s On Off Self Timer Flash On Off On Off Figure 1 14 Spectra Camera Control Panel On the back of the camera is a bank of controls and indicators which regulate many of the camera functions From left to right the switch functions are as follows the recessed switch sets the visible viewfinder distance display to either feet or meters the switch with the musical note symbol turns the audible indicators beeps and chimes on or off the switch with the clock symbol turns the self timer on or off the switch labeled AP turns the sonar autofocus function on or off the switch with the lightening symbol turns the electronic flash on or off the last switch with the white and black arrows is the electronic trim switch In the raised position it lightens exposures in the lowered position it darkens exposures in the middle position it has no effect on exposures With the switches in the positions shown camera operation is automatic That is the audible indicators beeps and chimes are on the self timer is off the sonar
18. intermix blades from one set to another NOTE The Quintic Assembly may be further disassembled as shown in Figure 4 19b The Walking Beam Inertia Assembly may be further disassembled as shown in Figure 4 19c Fixture 13123 Figure 4 19 145 Spectra System Image System Service Manual Disengage Pack l Pawl Spring Disengage Quintic Return Spring fan p R f Ee Shutter Blades casein hae Walking 1 pe ir Beam Inertia DF Assembly PE intic A 1 Pack Pawl Quintic Assembly Figure 4 19a Removing Shutter Components Frame and Lens Disengage Inertia Spring to separate Inertia and Walking Beam Remove Kick Spring A Inertia Counterweight ARA Inertia Spring Fig 4 19b Fig 4 19c Disassembling the Moving Disassembling the Walking Quintic Lens Beam Inertia Assembly 17A SHUTTER REASSEMBLY WITH CAMERA ON FIXTURE NOTE 3 32 dia 093 x 750 dowel pin needed for reassembly a With Shutter Baseblobk empty except for metal dowel pin in upper left hole above lens opening replace bottom Shutter Blade with tweezers wear finger cots when handling Blades Align upper left hole in bottom Blade with dowel pin and lower elongated slot in Blade with plastic guide pin see Figure 4 19d 146 Spectra System Image System Service Manual b Similarly replace middle and top Shutter Blades over dowel pin and guide pin In top Blade dowel pin goes through upper right hole in Bla
19. no film pack in the camera Switch 10 S1 VER S9 EOP EOC S9 SPD WIREFORM SWITCHES STARTING CONDITION Function Initiates strobe charging supplies power for ranging and preview initiates cycle Switches power to camera when erect Initiates darkslide cycle End of Pack indicates empty film pack in viewfinder display after 10th picture End of Cycle turns off motor after darkslide or processing cycle Film speed opened by normal speed film remains closed with slow speed film 49 Condition OPEN OPEN CLOSED OPEN OPEN CLOSED Spectra System Image System Service Manual S10 S1 is the Shutter Button not shown j EOC S9 Timing Gear Figure 2 25 Wireform Switchblock and Drive Assembly FILM PACK INSERTED AND DARK SLIDE When the film pack is inserted into the camera electrical connection from the battery to the camera is made through the two battery contacts in the camera film compartment If the film speed falls within the normal ASA parameter there is a projecting tab on the pack This tab opens a Film Speed wireform switch in the film compartment as shown in Figure 2 26 If the film speed is slow the tab is absent the switch remains closed and the exposure circuits increase all exposures by 1 3 f stop Tab on Pack Opens Switch Film Speed Switch Figure 2 26 Film Speed Wireform Switch 50 Spectra System Image System Service M
20. outer edge of the moving lens Figure 2 37 The pulses are counted by the encoder circuit and are compared to the distance information already generated by the transducer circuit When the pulse count corresponds to the distance information solenoid 2 is energized Circuit Windows in Encoder Moving Quintic Circuit Encoder LED Figure 2 37 Encoder Circuit Reads Light Pulses 57 Spectra System Image System Service Manual Energizing solenoid 2 releases the catch pawl which swings down and engages one of the teeth cutouts along the periphery of the Quintic Lens Figure 2 38 The moving lens is thus halted at a point where in combination with the taking lens and the fixed Quintic Lens it is in proper focus for the subject distance as measured by the transducer Solenoid Moving Quintic Lens Stopped in Proper Focus Figure 2 38 Catch Pawl Holds Quintic in Place With the lens system now in focus solenoid 1 is deenergized Since the catch 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 deenergized actually 20ms after solenoid 1 is deenergized an opening created by the position of the three shutter blades allows light from the encoder LED to again read the encoder photodiode Figure 2 39 The position of th
21. pin which holds S9 closed moves away from the wireform switch Figure 2 32 Note that this occurs while EOC S9 is still closed As a result the switch opens and remains operational for the remainder of all the exposure cycles until the film pack is removed When the pack is removed the pack pawl disengages from the counter ratchet and spring action brings the counter back to its starting condition In the starting condition the pin again holds S9 closed so it will be ready to divert power for the next dark slide cycle 53 Spectra System Image System Service Manual Figure 2 32 Counter Opening S9 Wireform PREVIEW MODE At this point in our sequence there is a pack of film in the camera the dark slide has been ejected the counter has indexed to 10 and the camera is ready to take a picture Lightly pressing the S10 S1 shutter button causes the following events to occur If the strobe switch on the control panel is ON a strobe charging cycle is initiated A red LED on the control panel lights during the charging cycle Figure 2 33 When the strobe is charged within 2 8 seconds the red LED extinguishes and the green LED lights The green LED stays on for 30 seconds or until a picture is taken Red LED Strobe Charging Green LED Strobe Charged Figure 2 33 Strobe Charging Strobe Charged Lights 54 Spectra System Image System Service Manual During the Preview mode an informative three color
22. pry in direction of arrow Cone Top Cover Figure 4 1 Removing Top Cover 120 Spectra System Image System Service Manual 2 DISCHARGING PHOTOFLASH CAPACITOR C 8 Parts which must be removed before doing this procedure Top Cover DANGER SHOCK HAZARD Immediately after removing Top Cover ALWAYS DISCHARGE PHOTOFLASH CAPACITOR C 8 BEFORE PROCEEDING to avoid shock Insert Dump Probe P N 13119 so that pins positively contact Capacitor term inals Figure 4 2 Probe Pins Must Positively Touch Capacitor Terminals Capacitor Discharge Dump Probe 13119 Figure 4 2 Discharging Capacitor C 8 with Dump Probe P N 13119 3 REMOVING MID COVER Parts which must be removed before doing this procedure Top Cover a With needlenose pliers remove two L shaped hinge pins Rotate upward 1 4 turn if leg of pin is pointing down 121 Spectra System Image System Service Manual b Close camera if erected and open Front Door Insert greenstick between Mid Cover and side of Main Frame to release one side Then insert greenstick at top center as shown twisting stick while holding side of Cover out Finally insert greenstick on opposite side and pry outward c Shut door and lay camera flat Bend out sides slightly pivot on the locating cutouts on the Bottom Cover as shown and lift off Mid Cover Needlenose A Pliers ZA L Shaped Pins Green Stick Y C TY Figure 4 3 Re
23. replacing Lens Mounting Plate check to be sure that lower front of the Walking Beam Assembly seats properly in its hole in the Lens Mounting Plate j Replace the Lens Mounting Plate Be sure the pivot pin on the front of the Walking Beam Assembly seats properly in its hole in the Lens Mounting Plate 147 Spectra System Image System Service Manual k With tweezers replace the Opening Blade Spring First hook lower end of Spring to the Walking Beam Then hook upper end in the notch it was in Originally identified by mark when Shutter was disassembled Dowel Pin MR lt k ae Shutter Blade Set Baseblock Figure 4 19d Reassembling Shutter Blades Walking Beam Assembled Unit Inertia Spring catches Tab on Walking beam Figure 4 19e Reassembling Walking Beam amp Inertia 148 Spectra System Image System Service Manual Install Assembly aligning Pins as shown Sa S Drive Link held with Pin at 12 o clock Figure 4 19f Reassembling Walking Beam to Drive Link amp Shutter Blades Trap Pawl in Solenoid Plunger slot Figure 4 19g Shutter Assembly Components 149 Spectra System Image System Service Manual Now check that all Shutter Assembly parts work properly push Quintic frame down gently with finger engage Quintic with Catch Pawl by depressing plunger of Solenoid 2 with finger move Walking Beam Inertia Assembly back and forth to check that Shutter Blades close and
24. uses either a light measurement alone to fire and shut down the flash or it uses a combination of light measurement and time measurement to fire and shut down the flash Figure 2 17 The method it chooses depends on scene brightness or LIGHT OR Figure 2 17 Model 640 Exposures Under most conditions the strobe fires when the shutter blade aperture is at its largest size Please note that this does not apply to fill flash situations The exposure system then uses the infrared portion of the reflected strobe light as part of the measurement to determine when to quench the strobe When enough strobe light is integrated into the measurement the quench strobe command is given The strobe is quenched and the shutter blades close This is called an integrating strobe system Model 660 Follow Focus The Model 660 camera utilizes a variable focus and variable shutter aperture system The strobe is always fired at full output Regulation of light for varying scene conditions is accomplished by firing the flash at varying shutter blade apertures Figure 2 18 For subjects close to the camera the flash fires with a small blade aperture for subjects far from the camera the flash fires when there is a large blade aperture Shutter blade aperture is also affected by scene brightness Since subject distance is the major factor in determining the aperture of the shutter blades the amount of light reaching the film plane is thus depende
25. when the moving Quintic Lens should be stopped by the catch pawl for proper focus It also provides information to determine when to stop the shutter blades for the appropriate aperture Finally it provides distance information for the viewfinder display When the autofocus system is turned off the blades open fully and the hyperfocal infinity lens position is chosen ELECTRONIC TRIM In previous camera models trim has been achieved by sliding a shaded wedge over the photocell to fool it into causing shorter or longer exposures In the Spectra System trim is achieved electronically Moving the lighten darken switch on the control panel actually affects the electronic circuit of the camera causing exposures times to be increased or decreased the equivalent of 2 3 stop There are no graduations between fully lighten or fully darken The change in exposure value is a full 2 3 stop from nominal in either direction 46 Spectra System Image System Service Manual FILM SPEED SWITCH To compensate for minor differences in film speed from pack to pack a film speed switch is incorporated into the camera This switch is located in the film compartment of the camera and is activated by a plastic tab on the side of the film pack Figure 2 24 Tab on Pack Opens Switch Film Speed Switch Figure 2 24 Film Speed Switch When a pack of normal film is inserted into the camera a tab on the pack opens the switch This tab is not pr
26. with the two locating tabs at the top of the Cone Carefully work the Light Seal into position as shown in Figure 4 29 Reassemble the camera Use care to be sure that the wiring conforms to the wiring diagrams which follow in the next section 162 Spectra System Image System Service Manual Encoder Wires Locating Tab Light Seal a i 3 8 Connector J4 i Strobe Board Retainer K S sys S10 S1 Switch Assembly Strobe Board Figure 4 29 Replacing a Defective Mirror Lightly hold pointed object against Mirror surface If gap is seen between object and Mirror that side of Mirror goes up away from the film chamber Side which shows no gap goes down towards film chamber Wrong Side Taking side goes toward Film Figure 4 29a Determining Mirror Taking Side 163 Spectra System Image System Service Manual C WIRE ROUTING ILLUSTRATED INSTRUCTIONS Presented on the following pages are a series of drawings which illustrate the proper routing for the various wires in the Spectra Camera After reassembling any part of the camera which impacts wiring be certain that the wire runs look like the wiring runs in the drawings Also presented in this section is an outline drawing of the exposure flex which shows the termination of all the connections Between Encoder Connector J13 and Posts on Cone Assembly Red to J20 Black to J19 gt Ranging Fi
27. 12650 2 for 600 series and other cameras The 12650 3 permits testing Spectra System cameras for seven different exposure and timing related operating characteristics as well as 600 series and other cameras Except for a new Horn 13146 for holding Spectra System cameras and a few name changes of Selector Switch positions see Figure 3 6 the 12650 3 Tester is outwardly identical to the earlier Model 12650 2 Star Tester Model 12650 3 Controls amp Indicators see Figure 3 6 Listed below are the Star Tester 12650 3 controls and indicators shown in Figure 3 6 The integrating light sphere and electronics required to compute and display exposure timing and functional characteristics of the camera under test are all housed within the tester cabinet KEY CONTROL INDICATOR FUNCTION 1 Disc Position Lamps Not used 2 Reset Button Clears electronics between tests 3 Disc Ride Time Selects disc catch or Switch ride time mode for 660 4 Test Selector Selects Test mode Switch 7000 ZLS Flash Exposure Ambient amp Blade Speed for Spectra camera 5 Horn Volts Selector Selects 5V low 6V nom or Switch 6 8V high Simulates film pack battery voltage 6 20V 2000V Selector With Volt Probe Jack amp DC Voltmeter allows use of Tester as voltmeter For checking DC voltages in camera under test with standard probe 78 Spectra System Image System Service Manual 14 Timing Meter DC Voltmeter Stops Error Meter DC Cur
28. 2 24 Figure 2 25 Figure 2 26 Figure 2 27 Figure 2 28 Figure 2 29 Figure 2 30 Figure 2 31 Figure 2 32 Figure 2 33 Figure 2 34 Figure 2 35 Figure 2 36 Figure 2 37 Figure 2 38 Figure 2 39 Figure 2 40 Figure 2 41 Figure 2 42 Figure 2 43 Figure 2 44 Model 660 ExpOSures cccccceeceeeeeeneeeeeeeeeeeeeeaeeeeeeesaeeeeemenees 42 Spectra High Brightness Strobe EXDpOSUre essen 43 Spectra Low Brightness Strobe ExpOSUreS eeeeeeeeeeeemeeees 43 First Light Dete TTT 44 DualiPhotodiode lt 2 cit Arias 45 Spectra System Transducer 46 Film Speed SWIC aea Te aZ Ha RATA TET Ta Raa r 47 Wireform Switchblock and Drive Assembly eee eee e 50 Film Speed Wireform Switch eee 50 Pack Pawl Engaging Counter Ratchet 51 Door Link Closes VER SWwWICh eee 51 Electrical Circuits with Door Closed and Latched 0068 52 Timing Gear Closing EOC IS0 eee 52 Pick Slide Ejecting Dark Slide and Indexing Counter 53 Counter Opening S9 WIreformm sse eee 54 Strobe Charging Strobe Charged Lights 54 Viewfinder Display During the Preview Mode eee 55 Quintic Lens System in Starting ConditiONS ooooococcccccccccccnonens 56 Kick Spring Starts Quintic Lens Movement 57 Encoder Circuit Reads Light Pulses 57 Catch Pawl Holds Quintic in Place 58 FirstLight Detecta e ie Edhe 59 Measurement of Visible Light and Infrared Light 0065 60 Shutter Components at
29. BE OVER EMPHASIZED BE ABSOLUTELY CERTAIN THAT ALL WIREFORM SWITCHES ARE IN THE POSITIONS SHOWN IN FIGURE 4 14e n Holding the Wireform Switch Block down with an index finger through the Flex Retainer opening replace the Gear Train Cover The tips of the four gear shafts should be visible at the right end of the Gear Train o Replace the Gear Train Motor Flex 13 REMOVING DOOR LATCH SPRING amp MOTOR Parts which must be removed before doing this procedure Top Mid amp Bottom Covers Gear Train need not be disassembled if Gear Train Cover is pried out slightly and Door Latch is gently lifted out NOTE THIS PROCEDURE IS DONE MOST QUICKLY AND EASILY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE P N 13123 a Remove Motor Gear Train Flex and Door Latch Gently separate Door Latch from Main Frame first at Motor Pinion Gear end using a small screwdriver then at the Door Latch Spring end b Remove Door Latch Spring by first prying it off the Motor hub Bend the Spring tab below the Motor hub away from the hub then bend upper yoke of Spring away from hub Next push in on the bottom tabs of the Spring by inserting a small screwdriver through holes in the bottom Then lift Spring out NOTE It may not be possible to remove Spring without deforming it If so replace with new Spring on reassembly c Gently pry Motor away from Main Frame by inserting small screwdriver between Main Frame and gear end of Motor case 140 Sp
30. Blade Spring if necessary 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 camera s sonar system If the Quintic moves too fast for example the Catch Pawl may not be able stop it at the correct position Quintic speed can be adjusted as follows Adjustment Procedure 1 Remove the Top Cover from the camera see Figure 3 10 96 Spectra System Image System Service Manual CAUTION HIGH VOLTAGE EXPOSURE VOLTAGES UP TO 320V ARE PRESENT ON TOP FLASH TUBE TERMINAL GREEN WIRE AND AT VARIOUS OTHER LOCATIONS ON THE STROBE BOARD 2 Using a small screwdriver carefully turn the adjusting screw of Solenoid 1 one half turn at a time Turn the screw counter clockwise to increase Quintic speed clockwise to decrease Quintic speed See Figure 3 14 3 Put Test Top Cover in place on camera 4 Retest the camera to verify that the Catch Pawl catches stops the Quintic at the correct position If it does not readjust the Solenoid 1 adjusting screw one half turn at a time until the Quintic is caught by the Catch Pawl 5 When proper Quintic catch is achieved replace Test Top Cover with camera s own Top Cover 6 If steps 1 3 fail to produce correct Quintic catch disassemble the camera to the shutter level and inspect the plunger of Solenoid 1 Catch Pawl and Quintic element for dirt
31. CMOS integrated circuit technology CMOS integrated circuits are susceptible to damage created by static electricity Static discharges are not always noticeable Just because you don t notice a static shock doesn t mean that there hasn t been one And just as static is not always obvious the damage it creates isn t always obvious until it s too late In fact one or two static discharges may not cause enough damage to adversely affect camera operation However static discharge damage is cumulative Enough static and you will undoubtedly damage the CMOS circuits Therefore Whenever you are working on the Spectra camera and any disassembly is required you must wear a grounding wrist strap The workbench surface must be dissipative The workbench itself must be grounded There should be no materials on the workbench which are conducive to the creation of static electricity Styrofoam coffee cups are prime villains If it is necessary for you to carry a disassembled camera away from the grounded workbench to a tester and you must disconnect your wrist strap be certain that you reconnect your wrist strap to a ground at the tester before you place the camera on the tester horn 117 Spectra System Image System Service Manual A GENERAL INSTRUCTIONS amp CAUTIONS The following procedures and illustrations cover complete disassembly of the Spectra System camera and virtually all Spectra sub assemblies Note however that for many re
32. CTORS FOR PROPER CONTACT CHECK POGO PAD MARKED Eroe WITH LOGIC PROBE DOES Eroe PULSE LOW WHEN CAMERA IS CYCLED EXPOSURE CYCLE YES IS CAMERA RANGING PROPERLY PROPER CONNECTION KEY AT PIN 1 IS CONNECTION PROPER ES 413 CONNECTOR FOR CHECK SHUTTER IS ENCODER PROPERLY SEATED IN CAVITY REPLACE ENCODER PAIR 103 Spectra System Image System Service Manual NO SELF TIMER MODE ARE ALL ASSEMBLIES SEATED CONNECTED NO YES RESEAT DOES CAMERA CYCLE IMMEDIATELY WHEN PUT IN SELF TIMER MODE NO YES DOES AN EXPOSURE OCCUR 14 SECONDS AFTER ENTERING SELF TIMER MODE REPAIR TAPE ON RM SWITCH PADS OR REPLACE ACCESSORY SWITCH NO YES WITH PIEZO ON DOES IT REPLACE F M BEEP WITH INCREASING FREQUENCY NO YES SEE NO DOES SELF TIMER LED PIEZO FLASH WITH INCREASING FREQUENCY NO YES DOES MOTOR RUN WHEN SELF TIMER SWITCH IS MOVED TO UP POSITION SEE NO SELF TIMER LED NO YES OK CYCLE CAMERA FOR RELIABILITY 104 Spectra System Image System Service Manual NO SOLENOID DRIVE ARE SUB ASSEMBLIES SEATED CONNECTED NO YES IS VER HIGH AT J4 PIN 3 YES NO ARE BATTERY CONTACTS ARE J5 amp J7 HIGH MISSING YES NO YES NO REPLACE REPLACE REPLACE IS J6 HIGH BATTERY WIRE FORM CONTACTS NO YES SWITCHBLOCK IS J6 CONNECTED TO oe IS J8 HIGH NO YES YES NO REPLACE REPLACE IS J8 RECONNECT SHUTTE
33. ECT DISTANCE The distance as measured by the transducer is displayed in feet or meters according to the setting on the control panel If the subject is beyond 20 4 feet 6 29 meters the distance display will be blank If the subject is closer than 2 feet 0 60 meters the display will show 1 foot or 0 1 meters GOOD PICTURE If the camera electronics determine that light and distance requirements for a good picture are met a green dot will be visible at the right side of the display If applicable the distance figure will also be shown LOWLIGHT TURN ON STROBE If the strobe switch on the control panel has been turned off and the camera electronics perceive a low light condition less than 12 3 c ft a blinking yellow triangle will be seen at the left side of the display Additionally a 1 2 second tone will sound If the strobe switch is on this warning will not occur BEYOND STROBE RANGE If the transducer measures a subject range of more than 15 5 feet 4 7 meters coupled with a photocell light measurement of less than 12 3 c ft the blinking yellow triangle will appear together with the distance figure if it less than infinity The 1 2 second tone will also sound TOO CLOSE If the transducer measures the subject as being less than 2 feet 0 60 meter away the blinking yellow triangle will be shown together with a distance figure of 1 foot or 0 1 meters The 1 2 second tone will also sound OUT OF FILM After the
34. G SOLENOIDS 1 AND 2 CAUTION SOLENOID 2 CANNOT BE REPLACED INDIVIDUALLY If Solenoid 2 is defective and requires replacement you must first replace the Baseblock assembly There are two tabs on the Baseblock which are destroyed if you remove Solenoid 2 Therefore if you must replace Solenoid 2 you must first install a new Baseblock which has these tabs intact DO NOT ATTEMPT TO GLUE THE SOLENOID ONTO A DAMAGED BASEBLOCK CAUTION Ifthe spring tab breaks when installing Solenoid 1 you must replace the Baseblock DO NOT ATTEMPT TO GLUE THE SOLENOID INTO POSITION IF THE LOCKING SPRING TAB BREAKS a When installing Solenoid 1 trap the drive link in the Solenoid plunger and then slide the Solenoid into its mounting channel on the Baseblock until the spring tab on the Baseblock locks into the hole in the Solenoid bracket b When installing Solenoid 2 first replace the Baseblock Then guide the Solenoid into its mounting channel carefully to prevent damaging the spring tab on the Baseblock Slide the Solenoid into position locking the spring tab on the Baseblock into the hole in the Solenoid frame 21 REMOVING DRIVE LINK Parts which must be removed before doing this procedure All Covers Shutter Assembly as a unit a Press down edge of Baseblock next to Encoder LED to allow room for LED removal Note position of Encoder wires on reassembly they must be positioned as they were originally free of Drive Link and Shutter Blade
35. IENT EXPOSURE ia dei cy drid dt idad anormal 85 STROBE EXPOSURE GRAY WALE ss aata Taar 4270292202092955 86 ZLS ZONAL LUMEN SECONDS GRAYWALL eee 87 HYBRID ZLS BLADE SPEED TEST niiin ioaea enaner ER EAE Aaa EA a 88 BLADE SPEED uti EE ai 89 STROBE INTEGRATED CURRENT STROBE CHARGE TIME xxe eee 90 D SPECTRA SYSTEM ADJUSTMENTS see 91 AMBIENT EXPOSURE CALIBRATION SLIDE xes 91 IR STROBE EXPOSURE CALIBRATION SLIDE sese 93 HYBRID ADJUSTMENT OPENING BLADE SPRING ooocccoccccccccononnnncconomencaninanaannanoncninannnns 94 BLADE SPEED OPENING BLADE SPRING sees ee eee 96 SOLENOID 1 ADJUSTMENT FOR QUINTIC POSITION see 96 E SPECTRA TROUBLESHOOTING CHARTS sse eee 98 67 Spectra System Image System Service Manual A SPECTRA CAMERA STAR TESTER SPECIFICATIONS Covered ambient 10 to 30 stops Covered strobe exposure graywall 30 to 20 stops The following additional tests are required only if the strobe exposure graywall cannot be corrected by adjusting the I R exposure calibration slide See order of spectra system tests in this section ZLS graywall 230 ZLS to 350 ZLS Hybrid 60 ZLS to 110 ZLS Blade speed 20 to 24 ms 68 Spectra System Image System Service Manual CAUTION The Spectra System camera uses silicon CMOS integrated circuit technology CMOS integrated circuits are susceptible to damage created by static electricity Static discharges are not always noticeable Just because you don t no
36. ILL CAMERA DO A DARK SLIDE CYCLE YES NO WHEN IN S TIM MODE DOES SEE NO DARK SLIDE CAMERA EVER CYCLE NO MOTOR DRIVE YES DOES CAMERA CYCLE IMMEDIATELY WHEN PUT IN S T MODE CHECK SWITCHES ON F M FOR PROPER CONTACT 8 REPLACE IF THEY ARE DEFORMED YES NO DOES PIEZO BEEP NO YES IN S TIM MODE CHECK SIGNAL IF SELF TIMER LED IS PIEZO AT F M IC 1 PIN 14 FOR NOT FLASHING A PULSING FROM LO TO HI REPLACE F M IS THIS SIGNAL PRESENT YES NO REPLACE PIEZO REPLACE F M 113 Spectra System Image System Service Manual CONTINUOUS CYCLE ARE ALL SUB ASSEMBLIES SEATED CONNECTED NO YES IS MOTOR FLEX SEATED RESEAT PROPERLY ON WIRE FORM SWITCHES YES NO IS WIRE FORM RESEAT MOTOR SWITCH BLOCK FLEX PROPERLY FORMED YES NO DOES COUNTER REPLACE ADVANCE SWITCHBLOCK YES NO MECHANICAL IS J2 PIN 2 EOC PULSING HIGH TO LOW DURING CYCLING YES NO ARE THERE WITNESS MARKS ON EM AT J2 IS J2 PIN 2 LATCHED HIGH YES YES RECHECK J2 FOR PROPER CONNECTION IP J2 CONNECTOR HAS RECESSED PIN REPLACE MOTOR FLEX IF EM HAS COATING AT CONNECTOR CLEAN FLEX REPLACE EM 114 Spectra System Image System Service Manual NO DARK SLIDE NO MOTOR DRIVE ane ALL SUB ASSEMBLIES SEATED CONNECTED Pe RESEAT ls COUNTER WINDOW BLANK ve NO INSERT BATTERY PACK amp IS PICK IN RETRACTED CLOSE DOOR DOES POSITION CYCLE OCCUR NO YES CLOSE SIE D
37. ND ADJUSTMENTS SECTION 160 Spectra System Image System Service Manual Rotate Viewfinder into Cone Align Tabs and snap into place Figure 4 28 Installing Viewfinder Assembly 26 REPLACING A DEFECTIVE MIRROR Parts which must be removed before doing this procedure All Covers NOTE THIS PROCEDURE IS DONE MOST EASILY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE 13123 a Remove the Strobe Board Retainer b Remove the S10 S1 Switch Assembly c Disconnect the Flex Assembly from connector J3 on the Strobe Board d Lift the Strobe Board and move it aside as shown e Disconnect the Flex at the following points Release the Photocell Retainer Release the Encoder wires from J13 Disconnect the Flex from Solenoid 1 Disconnect the Flex from Solenoid 2 161 Spectra System Image System Service Manual f Carefully lift the Flex Assembly and bend it back as shown in Figure 4 29 g Peel off and discard the adhesive backed Light Seal from the Cone Cover and Cone Assembly h Remove and discard the damaged Mirror CAUTION YOU MUST WEAR GLOVES WHEN HANDLING THE MIRROR TRY TO KEEP THE WORK AREA AS CLEAN AND DUST FREE AS POSSIBLE i Install the new Mirror onto the Cone orienting it properly Refer to Figure 4 29a j Set the Cone Cover into position over the Cone Assembly k Peel off the adhesive backing from the new Light Seal Orient the Light Seal over the Cone Assembly lining up the holes in the light seal
38. NG Meter 5 Compare these readings to the Specification 6 If either Strobe Current or Strobe Charge Time readings are not within specification replace the strobe board 90 Spectra System Image System Service Manual NOTE There are no Adjustment Procedures for Strobe Integrated Current or Strobe Charge Time D SPECTRA SYSTEM ADJUSTMENTS AMBIENT EXPOSURE CALIBRATION SLIDE Adjustment Procedure 1 Remove the Top Cover from the Camera see Figure 3 10 CAUTION HIGH VOLTAGE EXPOSURE VOLTAGES UP TO 320V ARE PRESENT ON TOP FLASH TUBE TERMINAL GREEN WIRE AND AT VARIOUS OTHER LOCATIONS ON THE STROBE BOARD 2 If the Ambient Exposure Test readings are too low use a dental pick and slide the Ambient Calibration Slide to the right see Figure 3 11 in proportion to the amount the reading is too low The Ambient Calibration Slide is the one next to the Shutter Base Block rearmost Slide when Base Block is viewed from the rear of the camera 3 If the Ambient Exposure Test readings are too high slide the Ambient Calibration slide to the left in proportion to the amount the reading is too high 4 Put the Test Top Cover in place and retest the camera Readjust the Ambient Calibration Slide if necessary 5 When the Ambient Exposure Test reading is within specification replace the Test Top Cover with the camera s own Top Cover NOTE If adjusting the Ambient Calibration Slide fails to bring the readings within specific
39. OES COUNTER DOES CYCLE OCCUR ADVANCE gt NO YES NO YES OCCUR l NO YES REMOVE RESET COUNTER MECHANICA BATTERY PACK Y YES NO INSERT BATTERY PACK AND CLOSE SIE DOES CYCLE iS COUNTER BLANK IS 59 HIGH AT J2 PIN 2 CYCLE CAMERA CTO FOR RELIABILITY YES NO NO ES CYCLE CAMERA ARE THERE WITNESS FOR RELIABILITY MECHANICAL MARKS ON EM AT J2 ES NO DISCONNECT FM FROM EM CLOSE SIE DOES CYCLE OCCUR ARE J6 amp J8 IF J2 CONNECTOR HAS YES NO HIGH RECESSED PIN REPLACE MOTOR FLEX IF EM HAS YES NO COATING AT CONNECTOR REPLACE eee CLEAN FLEX FM REPLACE CONNECT EM J6 J8 YES MECHANICAL CHECK SIGNALS AT J2 PIN 1 LO PIN 2 LO PIN 3 LO PIN 4 HL ARE SIGNALS IN PROPER STATES CHECK SIGNALS AT EM POGO PADS ARE Pi P2 amp P3 ALL HIGH MECHANICAL REPLACE EM 115 Spectra System Image System Service Manual SECTION 4 DISASSEMBLY AND REASSEMBLY CONTENTS A GENERAL INSTRUCTIONS 8 CAUTIONS eee 118 B DISASSEMBLY OF SPECTRA SYSTEM CAMERA 120 T REMOVING TOP COVER nthe 8 ently acu eerie aaa 120 2 DISCHARGING PHOTOFLASH CAPACITOR C B 121 3 REMOVING MID COVER as TS THE ne ceed E ase 121 3A MID COVER DISASSEMBL Y a CRS TRT E ERRER ERGO aaa EE EAS RER AER egg 122 4 REMOVING BOTTOM COVER eect Rea aaa R v ZES Roe Eaa an 123 5 REMOVING FRONT DOOR ex StE E dist cece cae Haba e is 124 6 REMOVING SPREAD SYSTEM FROM FRONT DOOR 125 7
40. R EM CONNECTED TO SOL 2 REPLACE RECONNECT SHUTTER 105 Spectra System Image System Service Manual FILM SPEED SWITCH FAILURE ARE ALL SUB ASSEMBLIES SEATED CONNECTED NO YES IS MOTOR FLEX SEATED PROPERLY RESEAT ON WIRE FORM SWITCHES ESPECIALLY AT SPEED SWITCH YES NO CONNECT OHM METER TO J2 PINS 5 amp 6 OPEN AND CLOSE SPEED SWITCH MANUALLY IS THERE ZERO RESISTANCE WITH SWITCH CLOSED AND A NOMINAL RESISTANCE WITH THE SWITCH OPEN RESEAT YES NO IS J2 SEATED REPLACE PROPERLY MOTOR FLEX YES NO REPLACE 106 Spectra System Image System Service Manual NO STROBE ARE ALL SUB ASSEMBLIES SEATED CONNECTED IS FTA ASSEMBLED RESEAT PROPERLY YES NO DOES SF SIGNAL ON THE EM POGO PAD PULSE HIGH REPLACE FTA DURING CYCLE NO YES DOES J3 PIN 1 PULSE REPLACE EM HIGH DURING CYCLE NO YES REPLACE DOES RIGHT SIDE LEAD OF R2 EM ON STROBE BOARD PULSE HIGH DURING CYCLE l YES NO IS TRIGGER COIL OR DOES EM AT J3 HAVE TRIGGER COIL LEAD COATING ON BROKEN CONNECTOR NO YES YES NO REPLACE REPLACE REPAIR REPLACE FTA STROBE EM STROBE BOARD BOARD 107 Spectra System Image System Service Manual LEAKAGE REMOVE TOP COVER DOES LEAKAGE DISAPPEAR YES NO IS FM MISFOLDED AT LED ARM OR EM AT INTEGRATING CAPS IS S10 HIGH REPLACE REPAIR FLEX REPLACE DISCONNECT FM FROM TOP COVER S1 S10 EM DOES LEAKAGE SWITCH DISAPPEAR
41. REMOVING RANGING BOARD sese 125 8 REMOVING SWITCH BLOCK FROM RANGING BOARD eee 127 9 REMOVING STROBE BOARD 128 10 REMOVING DISPLAY PRISM ASSEMBLY AND FEATURES FLEX 129 11 REMOVING EXPOSURE FLEX inrig ea a eaaa aE a N a 130 12 REMOVING GEAR TRAIN COVER sees 131 12A GEAR TRAIN DISASSEMBLY ee 134 12B GEAR TRAIN REASSEMBLY ee 137 13 REMOVING DOOR LATCH SPRING 8 MOTOR eee eee 140 14 REMOVING SHUTTER FRONT HOUSING eee eee 141 15 REMOVING TRANSDUCER AND FLASH TUBE ASSEMBLIES eee 142 16 REMOVING LENS MOUNTING PLATE xxe ee eee 143 17 SHUTTER DISASSEMBEN nene boise nana he a A a a A eA A E E eaa 144 17A SHUTTER REASSEMBLY WITH CAMERA ON FIXTURE 146 18 REMOVING SHUTTER ASSEMBLY AS A UNIT 150 19 REMOVING PIEZO ASSEMBLY 153 20 REMOVING SOLENOIDS 1 AND 2 0 0 eee 154 20A INSTALLING SOLENOIDS 1 AND 2 sse 155 21 REMOVING DRIVE LINK siei ae par i aiae no mencnnn cnn anno nn pania 155 22 REMOVING ERECTING LINKAGE eee eee 156 23 REMOVING ERECT BUTTON LATCH 157 24 REMOVING BELLOWS BOO 51 iiie aaa aa aa LE anara Aa TENi 158 25 REMOVING VIEWFINDER ASSEMBLY eee eee 159 25A VIEWFINDER REASSEMBLY 0 cccccccecseeteneeeeeeeeeteseaeeeeeeeeeessnnmaaaaeeeeeseeeennaneeeees 160 26 REPLACING A DEFECTIVE MIRROR eee eee 161 C WIRE ROUTING ILLUSTRATED INSTRUCTIONS sse e eee eee 164 116 Spectra System Image System Service Manual CAUTION The Spectra System camera uses silicon
42. REPLACE FM 108 Spectra System Image System Service Manual DRAWS HIGH CURRENT ARE ALL SUB ASSEMBLIES SEATED CONNECTED YES NO USING AN OHM METER IS J14 SHORTED TO J15 RESEAT NO YES DISCONNECT FM FROM EM ARE GEARS JAMMED DOES SHORT GO AWAY YES NO YES NO REPLACE MECHANICAL l REMOVE MOTOR FLEX FROM CHECK EM TO FM WIRE FORM SWITCHBLOCK BY CONNECTION IF REMOVING RETAINER DOES OK REPLACE FM SHORT GO AWAY NO YES DISCONNECT MOTOR FLEX IF SHORT IS IN SWITCHES FROM EM DOES SHORT REPLACE SWITCHBLOCK GO AWAY IF SHORT 1S IN MOTOR FLEX REPLACE FLEX NO YES DISCONNECT RM FROM EM DOES SHORT GO AWAY REPLACE MOTOR FLEX YES NO i CHECK RM TO EM DISCONNECT EM FROM CONNECTION IF OK STROBE BOARD DOES REPLACE RM SHORT GO AWAY REPLACE CHECK EM TO STROBE STROBE BOARD BOARD CONNECTION IF OK REPLACE EM 109 Spectra System Image System Service Manual MEAN TIME OUT MTO AMBIENT ARE ALL SUB ASSEMBLIES SEATED CONNECTED NO YES RESEAT IS TRIM SLIDE SEATED YES NO DOES CAMERA RANGE PROPERLY RESEAT YES NO COVER PHOTOCELL AND RANGE TO GREATER THAN 2 FEET DOES SEE aes YELLOW LED LIGHT IN DISPLAY RANGING IMPROPERLY IS EM SHORTED FLOOD PHOTOCELL WITH LIGHT AND AT INTEGRATING RANGE TO GREATER THAN 2 FEET CAPS DOES GREEN LED LIGHT IN DISPLAY YES NO YES NO OK SEE DO BLADES OPEN REPAIR EM NO ENCODER COMPLETELY NO YES REPLACE REPLACE SHUTTER EM
43. TC eth ook dient eahcon As 47 CAMERA INHIBIT Sa eina tetera tee a Peta teeta ayes 48 SEQUENCE OF OPERATION cistitis di eer Ogier Z eda e 49 STARTING CONDITION Siniestro tl ZRA etoile serene 49 FILM PACK INSERTED AND DARK SLIDE eee 50 PREVIEW MODE weiss cle dvaecccth enschede iene aad enti teen de 54 EXPOSURE MODE odia 56 FILM PROCESSING AND CYCLE ADVANCE eee 62 D SCHEMA TIC vic vee eves readied de cab 64 21 Spectra System Image System Service Manual This page intentionally blank 22 Spectra System Image System Service Manual A INTRODUCTION Presented in this section of the service manual are the details of Spectra System operation The discussion is for the most part limited to those areas which are new or unique to Polaroid cameras The first part of the section is a general discussion of new technology found in the camera while the second part of the section details the interactions of camera parts in a sequence of operation Next are timing diagrams and a schematic of camera electronics The final part of the theory section contains an engineering description of Spectra camera switches and camera signals It is strongly recommended that you have a background knowledge of Model 640 and Model 660 technology before you read this section 23 Spectra System Image System Service Manual B NEW FEATURES SPECTRA SYSTEM SPAR THYRISTOR STROBE The Spectra System strobe is a compact highly efficient System Th
44. age System Service Manual retainer Grasp here Wedge shaped Rass Boot Retainer Figure 4 26 Removing Bellows boot 25 REMOVING VIEWFINDER ASSEMBLY Parts which must be removed before doing this procedure All Covers Erecting Linkage Erect Button Latch Shutter Assembly Features Flex Strobe Board and Ranging Board NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH CAMERA MOUNTED ON WORK SUPPORT FIXTURE 13123 a Disconnect Cone from Main Frame b With front of Camera facing away from you and looking down on it press down with greenstick at point near top of X shaped ribs shown in Figure 4 27 to release tab Viewfinder will slide forward toward front of camera c Carefully pry out left side of Cone slightly 159 Spectra System Image System Service Manual d With left side of Cone out gently rotate the long axis of the Viewfinder Assembly counterclockwise down and out of Cone Push Back Figure 4 27 Removing Viewfinder Assembly 25A VIEWFINDER REASSEMBLY a Start with the tab near the sighting end of the Viewfinder V F Assembly b Position V F Assembly at an angle see Figure 4 28 so that tab clears the pivot arm of the Cone c Lift front of V F Assembly until it is in a horizontal position and slide it back into place NOTE THE VIEWFINDER MUST BE CHECKED FOR PROPER FRAMING AFTER IT HAS BEEN INSTALLED IN THE CAMERA REFER TO THE TESTING A
45. anual Insertion of the film pack also causes the pack pawl to engage the ratchet teeth of the counter wheel Figure 2 27 The pawl remains engaged until the pack is removed It allows the counter to turn only in one direction Pack Pawl Figure 2 27 Pack Pawl Engaging Counter Wheel Ratchet With the film pack inserted into the camera the door may now be closed and latched This causes the door link to pivot counterclockwise slightly Figure 2 28 As seen in the illustrations the upper pin on the door link pushes the BAT wireform into contact with VER The lower pin pushes GND away from VER Door Open Door Closed Door Link Figure 2 28 Door Link Closes VER Switch 51 Spectra System Image System Service Manual With the switches in this condition electrical circuits are completed to all of the functions noted in Figure 2 29 The camera components are thus able to receive power only when the door is closed and latched Strobe Switch Block Features Light Processor RE oe 3 Power Ics a Motor Battery Door Switch SRAN Erect Solenoid 1 lt Switch Solenoid 2 Closed by a Encoder LED film door bie Charge amp Ready LEDs camera erected User Switches Figure 2 29 Electrical Circuits with Door Closed and Latched You will recall that switch S9 is normally closed during the starting condition of the camera Thus when the camera door is closed power is delivered through S9 to start the motor T
46. ard 126 Spectra System Image System Service Manual 8 REMOVING SWITCH BLOCK FROM RANGING BOARD Parts which must be removed before doing this procedure Ranging Board a Insert screwdriver or greenstick under Control Panel Cover tab at top right and gently pry up b Repeat for tab at top left of Control Panel Cover c From component side of Ranging Board push on the three Cover retaining tabs as shown d Remove Control Panel Cover by pulling out and up from bottom of Cover Ranging Board d Control Panel TR Push C over Lift Up C T Figure 4 9 Removing Switch Block from Ranging Board 127 Spectra System Image System Service Manual 9 REMOVING STROBE BOARD Parts which must be removed before doing this procedure Top Cover a With tweezers push up small plastic Strobe Board Retainer fitting then lift out to free the Board b With small screwdriver or greenstick push tab forward just enough to free the SI0 SI assembly IMPORTANT BEFORE PROCEEDING MAKE MENTAL NOTE OF WIRE POSITIONS O With needlenose pliers gently pull off J14 red and J15 black wires from their Board connectors d At bottom left corner of Board remove J17 green and J16 orange wires Next pull off or unsolder strobe wire may be brown or white from Board Trigger Coil e Next remove Exposure Flex from its Board connector carefully using right angle needlenose pliers a Disconnect J17 green
47. ation refer to Steps 4 5 amp 6 of the Ambient Exposure test procedure 91 Spectra System Image System Service Manual Figure 3 10 Removing Top Cover from the Spectra Camera See Spectra Disassembly Reassembly Section for details Ambient Calibration Figure 3 11 Adjusting Ambient visible light Calibration Slide 92 Spectra System Image System Service Manual IR STROBE EXPOSURE CALIBRATION SLIDE Adjustment Procedure 1 Remove the Top Cover from the camera see Figure 3 10 CAUTION HIGH VOLTAGE EXPOSURE VOLTAGES UP TO 320V ARE PRESENT ON TOP FLASH TUBE TERMINAL GREEN WIRE AND AT VARIOUS OTHER LOCATIONS ON THE STROBE BOARD 2 If the Strobe Exposure Test readings are too low use a dental pick and slide the IR Strobe Exposure Calibration Slide to the right in proportion to the amount the reading is too low see Figure 3 12 The IR Strobe Exposure Calibration Slide is the nearer or front most Slide when the Base Block is viewed from the rear of the camera 3 If the Strobe Exposure Test readings are too high slide the IR Calibration Slide to the left in proportion to the amount the reading is too high 4 Put the Test Top Cover in place and retest the camera Readjust the IR Strobe Exposure Calibration Slide if necessary using the Test Top Cover 5 When the Strobe Exposure Test reading is within specification replace the Test Top Cover with the camera s own Top Cover NOTE If adjusting the IR
48. autofocus function is on the flash is on and the electronic trim is set to the nominal position Also located on the control panel is the wireless remote socket The remote receiver is plugged into this pocket Next to the wireless remote socket are the two electronic flash LEDs When the red LED is on the flash is charging When the green LED is on the flash is ready for an exposure The final position on the control panel is occupied by the frame counter window The counter indexes down from 10 to 0 as each exposure is made At 0 the chimes will sound to indicate that you are out of film 19 Spectra System Image System Service Manual E SPECTRA SYSTEM SPECIFICATIONS Camera type Folding rangefinder integral strobe electronic logic controlled functions Aperture Shutter f10 f45 apertures 1 245th second to 2 8 seconds shutter System speeds Lens Patented 3 element Quintic system 10 focus zones range 2 ft 0 6m to infinity Strobe Integral programmed flash for use indoors and outdoors Recharge time 0 1 to 2 8 seconds flash duration 1 3000th to 1 20 000th second Flash range 2 ft to 15 ft 0 6m to 4 6m Override control available to turn off flash Focusing Logic controlled sonar signal automatically measures distance from camera to subject Information is used to set lens system to proper range Sonar ranging time is 0 010 to 0 050 second Override control available to shut off ranging
49. be Systems the Model 640 quench Strobe with photocell light measurement which determines when to shut down the flash and the Model 660 Camera with fixed output strobe and variable focus and shutter apertures By Combining these features the strobe is able to provide consistent strobe exposures at an extended strobe range Adding to these desirable characteristics is the thyristor quench As you may recall in the Model 640 camera when the flash fired at less than full output the unused energy was directed to a quench tube where it was dissipated In the Spectra System when the flash is directed to fire at less than full output the thyristor circuit TH1 and TH2 stops the discharge of energy from the flash storage capacitor C8 Instead of being dissipated the energy remains stored and is saved for the next flash fire Thus during the recharge cycle only the difference between the stored amount and the full value of the flash storage capacitor must be generated To reduce recharge time even further the Spectra System strobe incorporates another feature called the 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 During this part of the cycle the flash storage capacitor receives a small amount of energy After film processing normal charging tops off the circuit with enough energy for th
50. d Trigger Coil wire may be soldered 142 Spectra System Image System Service Manual Transducer Housing Flash Tube Assembly a 7 Lift T Tab Figure 4 17 Removing Transducer Housing amp Reflector Assemblies 16 REMOVING LENS MOUNTING PLATE Parts which must be removed before doing this procedure All Covers Shutter Front Housing Transducer Housing Assembly and Reflector Assembly must also be lifted out a Note which notch holds end of Opening Blade Spring this is the notch in which it must be replaced on reassembly Identify notch with light scratch made with Exacto knife Remove Spring with tweezers b Gently pry Long Encoder Wire with its LED attached to remove LED from its hole in Baseblock On early versions of Camera LED is cemented in place c If Meniscus Lens must be removed free it by pushing spring finger on right side to the right using greenstick CAUTION Keep fingers and tools from touching lens to avoid fingerprints and scratches d Press down on tab 6 at bottom right e Lift up finger 5 at top right 143 Spectra System Image System Service Manual f Unsnap mating catch 4 at bottom right center g Lift up finger 3 at top center to release it h Push down gently on finger 2 at bottom left to release it i With Plate right side up and lens facing you pry finger 1 at top left to the left slightly to release it j Carefully lift Lens Mounting Plate of
51. d open and close the Quintic Lens should move and the motor should run The counter should index from 10 to 9 The red strobe charging light should come on and then go off The green strobe ready light should come on 12 Repeat the previous step six more times and observe that the camera operates as indicated above 13 Move the strobe switch on the camera control panel to the down OFF position Turn the front of the camera toward you Cover the photocell with black photographic tape Insert a soldering aide between the flapper door and the bottom of the shutter Figure 3 4 AF Switch in normal setting Quintic Lens moves _all the way down Insert soldering aid in far left side to hold flapper door open Figure 3 4 Quintic Lens Moves to Short Distance Setting With the camera aimed toward you press the S1 S10 button all the way The following should happen The warning beeps should sound There should be no strobe fire 74 Spectra System Image System Service Manual The moving Quintic frame should swing down below the level of the shutter during the exposure and should be visible through the open flapper door as seen in Figure 3 4 This is the short distance Quintic position The shutter blades should open and stay open for the maximum time out period of 2 8 seconds The camera motor should run The counter should index down 14 At the camera control panel move the sonar autofocus overrid
52. de c Reassemble Inertia Assembly to Walking Beam with Kick Spring and Inertia Springs in place see Figure 4 19e d Hold Drive Link from the rear so that its Walking Beam pin is at 12 o clock Place Walking Beam on its pivot pin on the Baseblock and at the same time engage top and bottom shutter actuating pins on the Walking Beam in the upper and lower Shutter Blade holes Hold Walking Beam so that both its shutter actuating pins when viewed from the rear are vertically aligned i e at 6 and 12 o clock See Figure 4 19f e Check that Walking Beam Inertia Assembly has been correctly positioned by carefully removing dowel pin and rotating the Walking Beam Assembly slightly back and forth If Assembly is correctly positioned an aperture of varying size will appear in the Shutter Blades IF VARYING APERTURE DOES NOT OCCUR DISASSEMBLE AND TRY REASSEMBLY AGAIN WALKING BEAM SHUTTER ACTUATING PINS ARE NOT PROPERLY ENGAGED IN SHUTTER BLADE HOLES f Replace Catch Pawl on its pivot pin Be sure upper tab is engaged in slotted end of plunger of Solenoid 2 Figure 4 19g g Replace Catch Pawl Spring First hook leg with right angle bend at its tip under post on Baseblock Then hook other leg of Spring under tab on Catch Pawl Figure 4 19h h Replace Quintic Frame Lens amp Counterweight Assembly on its pivot pin Bend long vertical arm of Return Spring until it is hooked under tab at top of Baseblock Fig 4 19h i Before
53. ding is out of spec perform the Hybrid Test Adjustment see Adjustment 2B next section If the Hybrid Adjustment fails to bring the reading within specification perform the 2 O Blade Speed Test If the Blade Speed is within spec but the strobe Exposure Test reading remains out of spec replace the exposure flex and retest If the Blade Speed Test reading is not within spec perform the Blade Speed Adjustment see adjustment 2C next section If the Blade Speed Adjustment does not correct Blade Speed repair or replace the Shutter Assembly and retest If battery drain is excessive perform the 3 Strobe Integrated Current Test If this reading is out of spec replace the Strobe Board If the strobe takes too long to recharge perform the 4 Strobe Charge Time Test If this reading is out of spec replace the Strobe Board 84 Spectra System Image System Service Manual SPECTRA SYSTEM TEST PROCEDURES AMBIENT EXPOSURE Purpose This test measures the energy on the film plane during an ambient visible light exposure The Star Tester light integrating sphere provides a constant scene brightness level of 100 candles ft Test Setup 1 Trip the Door Switch on the camera into the down position 2 Place the camera on the Horn against the Tester window 3 Slide the AP Strobe amp Audio beeper switches on the camera into the down OFF position Be sure the Trim Switch on the camera is in the normal position
54. display is visible in the viewfinder eyepiece as long as the shutter button is held half way down Figure 2 34 Good Conditions Distance Informatio Figure 2 34 Viewfinder Display During the Preview Mode The display is created from the logic circuits using signals from the rangefinder circuit which calculates camera to subject distance based on the echo return time of sonar pulses transmitted from the transducer the brightness detect circuit which samples ambient scene light through one of the cells of a dual photodiode The display shows subject distance in feet or meters depending on the setting of a selector switch on the camera control panel The subject distance is displayed in red A blinking yellow triangle indicates poor picture conditions subject too close subject beyond strobe range not enough light if strobe is turned off The poor conditions visual symbol is accompanied by an audible beeping sound which is created by exciting a piezo A green dot indicates that pictures conditions are good If all ten exposures have been made a three second chime will sound during the Preview mode to indicate that the camera is out of film This chime also emanates from the piezo If the strobe has been turned off the same functions take place during the Preview mode 55 Spectra System Image System Service Manual EXPOSURE MODE When the shutter button S10 S1 is pressed all the way down the viewfinder d
55. djustment Procedure and retest the camera 4 If the adjustment did not bring the Blade Speed within specification repair or replace the Shutter Assembly and retest 5 If Blade Speed is now within specification but Strobe Exposure is still out of spec replace the Exposure Flex and retest 89 Spectra System Image System Service Manual STROBE INTEGRATED CURRENT STROBE CHARGE TIME NOTE These two tests are listed together because Camera and Tester settings are the same Both tests can be performed together for convenience Purpose The Strobe Integrated Current test measures the energy required to fully charge the strobe capacitor C8 in the camera Strobe charge time measures the maximum time required for strobe recycling Test Setup 1 Trip the Door Switch on the camera into the down position 2 Place the camera on the Horn on top of the Tester 3 Slide all the camera switches up ON except the AF and Audio beeper Switches 4 Cover the Photocell 5 Set the Test Selector Switch to ZLS Test Procedure 1 Press the Shutter Button fully to fire the Strobe 2 After the Strobe fires slide the Strobe switch on the camera down OFF during the three seconds that the blades are open maximum timeout 3 After the camera has cycled press the RESET button on the Tester and slide the camera Strobe switch up ON 4 Read the Strobe current value on the DC CURRENT Meter and the maximum value displayed by the TIMI
56. e Quintic Lens in its focused or stopped setting is such that a window is lined up between the encoder LED and the photodiode This light pulse is the First Light Detect and serves as the starting point for all exposure measurements 58 Spectra System Image System Service Manual Encode T pw Circuit Quintic Lens in ES Focus Position Opening here as Shutter Blades start Encoder to open LED Figure 2 39 First Light Detect With the shutter blades opened to the proper aperture strobe firing now occurs If the strobe is turned off exposure will be determined by light integration or a maximum time out of 2 8 seconds Strobe fire duration is dependent on the integration of the transducer camera to subject distance information and light measurement information If the subject is more than 14 feet away the strobe may be fully discharged As previously mentioned Spectra exposure measurements are a combination of the best features of the Model 640 and Model 660 cameras The dual cell photodiode measures all visible white light which is the primary contributor to ambient exposure calculations It also measures the infrared component of the reflected strobe light which is the primary contributor to strobe exposures Figure 2 40 Electronic mixing of the proper amount of each of these light sources provides optimum film exposure by precisely determining when to fire the strobe when to turn it off and when to close the shutt
57. e flashtube is contained in a shock resistant housing which occupies the left corner of the camera face Figure 2 1 It is electrically connected to the Strobe PC Board Assembly which is located on the top rear surface of the cone assembly Found on this PC board are all the electronic components which are responsible for translating camera signal commands into functions such as strobe charge strobe fire strobe quench etc A connector on this board ties the strobe electronics to the camera flex circuit The strobe ready lights red charging green ready to fire are mounted on the Ranging PC Board which is directly behind the system control panel at the rear of the camera Strobe Board Flashtube Housing Ranging Board Figure 2 1 Spectra System Strobe The strobe incorporates the best features of strobes previously used in Polaroid cameras and adds some new characteristics The Spectra strobe is called a SPAR Thyristor strobe SPAR is an acronym meaning Strobe Preferred Automatic Recharge Just as it sounds the design of the system is geared toward a strobe which charges very quickly and is ready for use practically whenever the picture taker is ready to shoot a picture The maximum charge 24 Spectra System Image System Service Manual time for the strobe is 3 seconds Typically for reasons described below the charge time is much faster than 3 seconds The Spectra strobe incorporates the features from previous stro
58. e next flash exposure 25 Spectra System Image System Service Manual STROBE SPECIFICATIONS VARIABLE HYBRID QUENCH SERIES THYRISTORS Strobe Range 2 To 15 Feet 6 To 4 6M Indoors Charge Time Maximum Of 3 Seconds Stored Energy 21 Watt Seconds Light Output Maximum 350 Czls Minimum 230 Czls Nominal 265 Czls Flash Duration 1 3 000 To 1 20 000 Sec Strobe Preferred Automatic Recharge Charges Or Tops Off When Camera Is Erected New Film Is Loaded amp Door Closed Flash Override Switch Is Turned Off S1 Is Partially Pressed Film Frame Is Processed 26 Service Manual Dd Most 0998 ol ool ozy Leo aen V 10459L t o 89 Lia 47 1 esoo i go gt i ANS lt lt SIP Ims xi 89 i Z a18 L y gt n DEAN gt itt wn l oO ano gt e D 1 E anos gt 2 gt A A E o gt 2 gt Ss gt D MA s gt A gHo gt 6 gt L gt ISA i 0 MS Y rt t on ais os gt On O N3A Y 9 C 0 N o er 1 09 27 Figure 2 2 Schematic Of Spectra Strobe Spectra System Image System Service Manual SPECTRA SYSTEM FILM The Spectra System camera uses a new film called Spectra System color film Like its predecessors SX 70 and 600 film the new film uses an integral format with development taking place within the sealed frame The new film uses dyes which provide more vibrant b
59. e switch to the down sonar off position The photocell should remain covered with the black photographic tape and the soldering aidee should still be inserted into the flapper door area With the camera aimed toward you press the S1 S10 button all the way The following should happen The warning beeps should sound There should be no strobe fire The moving Quintic Lens frame should swing down below the level of the shutter and should be visible through the open flapper door Figure 3 5 This is the infinity Quintic position AF Switch in OFF setting Quintic Lens moves down part way Figure 3 5 Quintic Lens Moves to Infinity Setting 15 Spectra System Image System Service Manual The shutter blades should open and stay open for the maximum time out of 2 8 seconds The camera motor should run The counter should index down 15 Remove the soldering aide from the flapper door and remove the black photographic tape from the photocell Return the strobe and sonar autofocus override switches on the camera control panel to the up strobe and sonar ON positions 16 Slide the self timer switch to the down self timer ON position The camera exposure will be delayed for 12 seconds The following should happen The warning tones beep beep should sound The tones should get progressively faster until two seconds before the exposure when the tone becomes steady At the front of the shutter the red LED next to the pho
60. ectra System Image System Service Manual Insert small screwdriver through small holes Door Latch Door Latch Figure 4 15 Removing Door Latch Spring and Motor 14 REMOVING SHUTTER FRONT HOUSING Parts which must be removed before doing this procedure Top Cover a Keeping Flapper Door depressed unsnap tab on Strobe side of Housing b Now unsnap inside tab from detent on Transducer side of Housing with greenstick or small screwdriver c Release outside tab from its catch just behind Strobe Remove Shutter Front Housing 141 Spectra System Image System Service Manual Shutter Front Housing LE l T m M Figure 4 16 Removing Shutter Front Housing 15 REMOVING TRANSDUCER AND FLASH TUBE ASSEMBLIES Parts which must be removed before doing this procedure Top Cover and Shutter Front Housing a With greenstick or small screwdriver lift up T tab at top of Transducer Housing and tilt Housing forward Bottom tab will release Carefully remove wires from Transducer by disconnecting them at their push on terminals b Remove Flash Tube by gently pulling it away from its adhesive backed foam Carefully free Flash Tube wire leads from Baseblock NOTE If Flash Tube wires must be removed from camera Features Flex will have to be removed from Exposure Flex and Self Timer will have to be removed from Shutter Front Housing Remove three wires from the Strobe Boar
61. ent air flow for cooling 80 Spectra System Image System Service Manual 2 Locate the Tester on a bench or table so that when the Spectra on its Horn is placed on the top of the Tester the Spectra lens will be exactly 4 5 feet 135 cm from a graywall target Also be sure that the front of the camera is parallel to the graywall or the long axis of the camera front to back is at right angles to the graywall See Figure 3 7 3 Be sure that the area between camera and graywall for a width of approximately 4 feet or what can be seen in the Spectra viewfinder is clear of any objects This will prevent erroneous readings caused by reflections from the sonar side lobes of the Spectra camera ALAA Figure 3 7 Locating Tester in Relation to Graywall Target Pretest Checks 4 Connect the Tester to a 115 VAC 50 60 Hz line 5 Mount the camera on the Spectra Horn 13146 and connect the cable from Horn to the receptacle marked horn key 16 in Figure 3 6 on the right side of the Tester 6 Turn the Tester Power Switch ON switch will illuminate if the Tester is receiving power Let the Tester warm up a minimum of 10 minutes before performing tests 81 Spectra System Image System Service Manual 7 Open the Front Door of the Spectra camera and with a greenstick solder aide tool trip the Door Switch into DOWN position See Figure 3 8 8 Position the Horn with the camera mounted on it against the front of the T
62. er at location 3 When tip is resting on finger 3 press down slightly to release it f Repeat procedure for finger 4 at right by inserting blade at location 4 approximately in line with the left rear pin of Solenoid 2 and pressing down slightly Finger 4 is all but hidden by Solenoid Baseblock with Lens Mounting Plate attached can now be freed from Cone CAUTION Be sure the two Calibration Wedges narrow plastic strips don t fall out of Baseblock and become lost 151 Spectra System Image System Service Manual Pull Finger Releasing Fingers 1 and 2 Steps b amp AY Press down Nle R EN REZ E A o H 7 El pu ffel Press down Finger 3 Releasing Fingers 3 and 4 Steps d amp e Remove gt Sna Shutter x Assembly Figure 4 20 Removing entire Shutter Assembly as a unit 152 Spectra System Image System Service Manual 19 REMOVING PIEZO ASSEMBLY Parts which must be removed before doing this procedure Top and Mid Covers a Unhook Flapper Door spring b Spring out Door end support on Main Frame slightly next to Piezo and remove Flapper Door c Use straight needlenose pliers to remove Piezo cover engage tips in cover depressions then twist pliers counter clockwise to release Assembly from its mounting lugs on the Main Frame d Carefully disconnect Piezo wires from Features Flex with tweezers Gently pull wires from their r
63. er blades 59 Spectra System Image System Service Manual Light Measurement Circuit Dual Cell Photodiode ey _ Photodiode Filter Figure 2 40 Measurement of Visible Light and Infrared Light When the light measurement determines that the strobe should be shut down a pair of series thyristors in the strobe circuit act to save any unused energy remaining in the flash capacitor This departure from previous Polaroid flashes results in a shorter recharge time for the succeeding exposure When the exposure cycle is completed the logic circuits again energize solenoid 1 Figure 2 41 60 Spectra System Image System Service Manual Figure 2 41 Shutter Components At End of Exposure Cycle The solenoid pulls the drive link and rotates the walking beam clockwise back to its original position closing the shutter blades Solenoid 2 which has been at a holding current level during the exposure is now deenergized This disengages the catch pawl from the Quintic and allows the Quintic return spring to bring the lens back to its original position The foot of the catch pawl is also now positioned to latch the walking beam Thus when solenoid 1 is deenergized the walking beam cannot move The exposure cycle is now completed Strobe recharging begins immediately after the shutter system is latched in the form of a brief sneak charge Before the film frame is even processed the sneak charge acts to top off the flash capacitor eith
64. er fully recharging it or partially recharging it This depends on how much strobe energy was expended during the exposure The purpose of the sneak charge is to minimize the time required to charge the strobe before the next exposure is made The sneak charge ends when the shutter button is released 61 Spectra System Image System Service Manual FILM PROCESSING AND CYCLE ADVANCE Motor drive starts when the shutter button S10 S1 is released The motor drives the timing gear the same way as described for the dark slide cycle The timing gear closes EOC S9 to keep the motor running and pull the pick slide forward Figure 2 42 and 2 43 EOC S9 Open AH Timing Gear Durin Timing Gear During Processing 8 8 g 8 Figure 2 42 EOC S9 Wireform Switch Closed by Timing Gear Cam Counter Timing Gear Figure 2 43 Film Processing A hook on the pick grabs the just exposed film frame and pulls it into the developer rollers which are motor driven The rollers break the developer pod and spread the reagent as the frame is fed through the rollers The pick also pulls one of the counter wheel ratchets forward and the counter indexes from 10 to 9 62 Spectra System Image System Service Manual As the timing gear continues its rotation the cam on its face loses contact with EOC S9 As a result EOC S9 opens and turns the motor off The motor then coasts and the timing gear returns to its starting position With motor pow
65. er turned off the strobe charging circuit then completes the process of charging the strobe capacitor After all 10 film frames have been exposed and processed the counter indexes to a point where a 0 against a red background appears in the counter window indicating that no film remains in the pack At this point a pin on the side of the counter closes the EOP end of pack switch Figure 2 44 NEOP Switch Closes Figure 2 44 Closing The End Of Pack EOP Switch With the EOP switch closed a repeating chime sounds three times signaling that there is no film left in the pack If the empty pack is left in the camera the chime will sound whenever the shutter button is pressed A flashing red 0 will also appear in the viewfinder This chime will also sound if the camera is erected after it has been closed with an empty pack inside it Removing the empty pack disengages the pack pawl causing the spring tensioned counter wheel to return to its starting condition A blank appears in the counter window the EOP switch opens and the S9 switch closes The camera is now in the starting condition described at the beginning of this sequence section 63 Spectra System Image System Service Manual D SCHEMATIC The system schematic for the Spectra System camera is presented on the following pages 64 Spectra System Image System Service Manual TE r
66. ernal shape of the Spectra System camera to be more streamlined than it could be if the viewfinder did not erect with the cone The second distinction from earlier viewfinders concerns magnification of the image The Spectra System viewfinder provides greater magnification than viewfinders in previous Polaroid models Magnification is 20 greater than viewfinders in 600 line cameras Additionally the image presented in the eyepiece is within the confines of a sharp black border The black border clearly frames the subject matter meaning that the picture taker can be more certain that he or she has captured precisely what is desired Additionally the image is well defined meaning that it is sharper and more distinct Third the viewfinder image is informative providing visual displays of exposure conditions and subject distance This feature is described in greater detail below Even with all the new features the viewfinder is actually smaller than viewfinders used in previous camera models The size reduction was necessary because of packaging constraints created by the size of the camera These same packaging constraints resulted in having to design a jog in the optical path As can be seen in Figure 2 4 the front window of the viewfinder is not in direct line with the rear eyepiece The jog requires the use of mirrors to bend the image to the eyepiece 29 Service Manual Spectra System Image System Front View Top V
67. esent on slow film packs Therefore when a pack of slow film is inserted the switch stays closed With the switch closed the calibrated strobe and ambient exposures are increased by 0 33 0 15 stop to compensate for the slow film 47 Spectra System Image System Service Manual CAMERA INHIBITS The camera electronic circuits are designed to prevent certain types of camera operation while another function is taking place These inhibits are Strobe fire is inhibited during dark slide Camera cycling is inhibited during strobe charge The strobe converter is inhibited during the ranging and processing cycles Motor drive is inhibited when SEE known as the social switch is closed This is accomplished by holding the shutter button down after an exposure is made Camera cycling and strobe charging are inhibited during the self timer mode and also when the out of film chime is sounding 48 Spectra System Image System Service Manual C SEQUENCE OF OPERATION STARTING CONDITIONS CAMERA ERECT DOOR OPEN WITH NO FILM PACK Figure 2 25 shows the drive assembly and wireform switch block These two assemblies provide electromechanical control of most camera functions Note that the wireform switches are activated by the rotation of both the timing gear and the counter In the illustration the switches are shown as they are in the starting condition That is the camera is erect the door is open and there is
68. ester with the guide tab on the right side of the Horn against right edge of window mounting plate see Figure 3 9 9 Fully depress the camera Shutter Button five times Read the Stops Error Meter and check the Spectra Specification for agreement 10 AT LEAST WEEKLY Using a Standard Spectra Camera as a reference perform the Ambient Exposure Test to check that the Star Tester is operating properly Figure 3 8 Trip Spectra System Door Switch to DOWN Position Before Doing Test 82 Spectra System Image System Service Manual Figure 3 9 Positioning Camera on Horn Against Star Tester ORDER OF SPECTRA SYSTEM TESTS Tests on Spectra System Cameras should be performed in the following order Mandatory tests 1 Ambient Exposure at 100 C FS 2 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 2a ZLS Graywall Test If the ZLS Graywall Test result is not within spec replace the Strobe Board or the Flashtube Assembly as required 83 Spectra System Image System Service Manual If the ZLS Graywall Test is now within spec but the Strobe Exposure Graywall reading remains out of spec perform the 2b Hybrid Strobe Blade Speed Test If the Hybrid Test reading is within spec but the Strobe Exposure Test reading remains out of spec replace the exposure flex and retest If the Hybrid Test rea
69. f Baseblock taking care not to disturb assemblies now exposed Mark Notch Finger 1 Figure 4 18 Removing Lens Mounting Plate 17 SHUTTER DISASSEMBLY Parts which must be removed before doing this procedure All Covers Shutter Front Housing Transducer Housing Assembly Reflector Assembly and Lens Mounting Plate including Opening Blade Spring NOTE THIS PROCEDURE IS DONE MOST EASILY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE 13123 AS SHOWN IN FIGURE 4 19 144 Spectra System Image System Service Manual CAUTION WHEN DISASSEMBLING THE SHUTTER BE SURE TO KEEP FINGERS AND TOOLS AWAY FROM THE OPTIC ELEMENTS a Using tweezers unhook the upper end of the Quintic Return Spring Remove the Quintic Assembly consisting of Counterweight Return Spring Frame and Lens from the baseblock See Figure 4 19a b Using tweezers unhook the upper end of the Catch Pawl Spring and remove the Catch Pawl from the baseblock See Figure 4 19a c Remove the Walking Beam Inertia Assembly which consists of the Kick Spring Inertia Inertia Spring and Walking Beam from the shutter baseblock See Figure 4 19a d Wearing finger cots or gloves remove the three shutter blades from the baseblock Figure 4 19a If the blades are to be re used exercise care to prevent scratching or getting body oil on the blades Also note that the three blades must be re installed as a set Replacement blades are available as a three part set Do not
70. firm the results 99 Spectra System Image System Service Manual CHECKS OK PROCEDURE FOR ALL SPECTRA SERIES CAMERAS Use all available failure information for camera analysis such as customer letter repair tag etc If the Customer complaint is BLACK PICTURE Remove the Top cover and inspect the following areas Encoder pair wires on connector D1 Diode Defective Quintic Solenoid 2 connection IC1 lead lifted IC2 lead lifted Solenoid 1 connection If the Customer complaint is NO DARK SLIDE Remove the Top and Bottom covers and inspect the following areas Motor flex to Wireform connection Defective or distorted Wireform switch Exposure module to Ranging board to Strobe board connections Counter hang up D1 Diode Battery wire connection Cracked streaks on Exposure module or Motor flex Lifted leads on IC s If the Customer complaint is NO STROBE FIRE Remove the Top Cover and inspect the following areas Flash tube assembly 10 S1 switch Ranging module switch block Exposure to Ranging module connections 100 Spectra System Image System Service Manual If the Customer complaint is CONTINUOUS CYCLE Remove the Top and Bottom Covers and inspect the following areas Exposure module to Motor flex connection Defective or distorted Wireform switch Motor flex to Switch block connection Counter hang up Exposure to Feature flex connection If the Customer c
71. g 4 34 Exposure Flex Connections 167
72. g Capacitor C 8 with Dump Probe P N13119 121 Figure 4 3 Removing Mid Covet cccccccccceceeeeemececeeeeeeeeeeeeeeeeeeeeeeeeeemensaes 122 Figure 4 4 Removing Eye Cup and Counter Window from Mid Cover 123 Figure 4 5 Removing Bottom Covet eee eee 124 Figure 4 6 Removing Front DOO crestina E a iat 124 Figure 4 7 Removing Spread System from Door eee 125 Figure 4 8 Removing Ranging Board sees 126 Figure 4 9 Removing Switch Block from Ranging Board eee 127 Figure 4 10 Removing Strobe Board sss sese 128 Figure 4 11 Removing Display Prism Assembly and Features Flex 129 Figure 4 12 Removing Exposure Flex eee 131 Figure 4 13a Flapper Door Removal eee 132 Figure 4 13b Removing Motor Gear Train Flex 132 Figure 4 13c Removing Flex Retainet cc cceeeeeeeeeeeeeeneeeeeeeeeeeeeaaaaeneeeeeeeeees 133 Figure 3 13d Removing Door Release Button ccc eee 133 Figure 3 13e Removing Gear Train CovVe ccccccccececeeeeeneeeeeeeeeeeeeeeeeeetees 134 Figure 4 14a Gear Train Disassembly eee 136 Figure 4 14b Removing the Door Latch eee eee 136 Figure 4 14c Gear Train Reassemblly eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 138 Figure 4 14d Installing the Door Latch sees eee 139 Figure 4 14e Wireform Switch Orientation eee eee eee e 139 Figure 4 15 Removing Door Latch Spring and Motor sese 141 Figure 4 16 Removing Shutter Front
73. gure 2 10 is a simplified drawing which represents the relationship of two aspheric lenses In this representation you can see that by changing the position of the two lenses relative to the other as shown this theoretical lens system could focus on subjects at extremes of two feet or infinity 34 Spectra System Image System Service Manual Convex Lens Concave Lens In Focus at 2 feet In Focus at Infinity Figure 2 10 Interaction of Aspheric Lenses Essentially the Spectra System relies on the optical results of changing the relationship of its Quintic aspheric lenses rather than having a series of individual lenses like the Model 660 to create different focus zones Because of the way the aspheric lenses are shaped the system can create ten different zones as opposed to the four zones for the Model 660 The characteristics of the Quintic system are such that it has a greater focal length than lens systems in previous Polaroid cameras This results in larger subject images being produced That is if you set a Model 680 for example next to a Spectra camera and took photographs of the same object at exactly the same distance the Model 680 image would show a wider field of view but the Spectra image would show a greater magnification of the center area of the subject A tree in a distance shot would be larger in the Spectra image than in the Model 680 image Figure 2 11 shows the components of the Spectra System Quintic Lens system
74. gure 4 30 Routing Transducer Wires 164 Spectra System Image System Service Manual Green to J17 Pa Orange to J16 All on Strobe a p Board K White soldered to ue Transformer TCL J25 on Features Flex both black Figure 4 31 Routing Strobe Wires Routing Piezo Wires Features Shield Assembly Ground Wire can terminate at A lt either El or J26 of Strobe Or Board depending on camera p 8 Loop red wire as Route wires around N J14 JA ys trapped under Under Route wire behind black wire Tab Black Battery Ny connector Contact Wire to y Red Motor Flex J15 on Strobe Over Tab Wire to J14 of Board White Battery A Strobe Board Contact Wire to Jy J11 of Motor Flex Figure 4 32 Routing Battery Contact Wires Features Shield Wire Motor Flex Wire 165 Spectra System Image System Service Manual Outside of Cone Locating tab Between Solenoid and JI3 ot Baseblock Arm Exposure Flex Through AI Tab at back side of Baseblock Through slot in Baseblock Figure 4 33 Routing Encoder Wires 166 Spectra System Image System Service Manual Dual Photocell Diode Fits into Retainer in Shutter Area 4 To Solenoid 2 Pag To Solenoid 1 i Connector J13 Encoder wires terminate here R To Connector J3 on E Strobe Board al To Connector J4 on Features Flex To Connector J1 on Ranging Module To Connector J2 on Gear Drive Motor Flex Fi
75. h Capacitor Flash Charging a LEDs Not Shown Figure 1 6 Thyristor Electronic Flash The built in electronic flash used in Spectra is the most efficient flash ever used in a Polaroid camera It is highly compact smaller than previous Polaroid electronic flash units yet it delivers an output which allows flash pictures to be taken in a 2 foot to 15 foot range 6 m to 4 6 m The flash system is designed to be practically always ready the worst case charge time being less than three seconds Typically charge times are much less than that Fast charge times result from three features 1 thyristor Circuitry 2 SPAR and 3 sneak charge The thyristors halt the discharge of energy through the flash circuit when enough light has been produced to make a good exposure Instead of being dissipated the remaining energy is saved for the next flash SPAR means Strobe Preferred Automatic Recharger In effect this means that the camera circuits are set up to always give preference to recharging the flash capacitors Sneak Charge is a method employed to start charging the flash capacitor even before the camera cycle is completed That is the flash capacitor is partially charged at the end of one exposure in preparation for the next exposure 13 Spectra System Image System Service Manual After the film frame is ejected the charging circuit tops off the flash capacitor During the charging process a red LED at the back of the camera warns
76. he latest in photographic innovation from Polaroid The system is composed of a folding sonar rangefinding camera with built in electronic flash a new film and a series of accessories designed exclusively for Spectra Figure 1 1 shows the camera in the closed position The external controls and indicators of the camera are shown in Figures 1 2 and 1 3 The accessories are shown in Figure 1 4 Unlike other Polaroid models the camera is held like a pair of binoculars during use An adjustable strap along the side of the camera accommodates the user s left hand to provide stability during picture taking The right hand is free to manipulate the switches on the camera control panel and to press the shutter button Controls and indicators which are unique to this camera will be discussed later in this section For the first time silicon CMOS circuits are being extensively used in a Polaroid camera Silicon CMOS IC technology allows increased functionality within a small package In the case of the Spectra camera it has allowed many added camera features such as an informative viewfinder which visually tells the user the distance to the subject if conditions are not good for a picture or if conditions are OK Additionally the camera audibly tells the user if conditions are not right for a picture the camera beeps or if the camera has run out of film the camera chimes CMOS technology also permits a higher level of exposure compensa
77. he motor turns the timing gear which is now responsible for several actions As seen in A of Figure 2 30 before the motor turns the timing gear switch EOC S9 is open Note that this wireform switch is different from wireform switch S9 which is activated deactivated by the counter wheel EOC S 9Close a Timing gear E Figure 2 30 Timing Gear Closing EOC S9 Timing Gear 52 Spectra System Image System Service Manual In B of Figure 2 30 the motor drives the timing gear and the cam on the face of the timing gear forces EOC S9 down to make 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 condition shown in A of Figure 2 30 Another cam on the back of the timing gear moves simultaneously with the cam on the face The cam on the back of the timing gear actuates the pick slide which does two things First it engages the dark slide in the film pack and pulls it forward into the motor driven rollers The rollers eject it out of the camera Second a hook on the left end of the pick engages one of the ratchet teeth on the counter It indexes the counter from blank to 10 Figure 2 31 Counter Pulls Pick Return Spring Pick Indexes Counter Figure 2 31 Pick Slide Ejecting Dark Slide and Indexing Counter As the counter wheel indexes a
78. iew Viewfinder Eyepiece _ __ Viewfinder Window Figure 2 4 Spectra Camera Viewfinder Assembly 30 Spectra System Image System Service Manual Figure 2 5 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 black border which define the image and which clearly show the extent of the image which will be captured on the film frame and a plastic wedge which is included to straighten the image to the eyepiece L Dual Front Element i a Main Lenses Mirrors 4 Figure 2 5 Viewfinder Components 31 Spectra System Image System Service Manual VIEWFINDER DISPLAYS Figure 2 6 shows the location of viewfinder displays as seen in the eyepiece splay shown for ation only In Bad Picture Indication Figure 2 6 Viewfinder Displays These displays originate from LEDs which are located on a printed circuit board below the viewfinder optical components When illuminated the LEDS reflect off a prism mounted over the PC board and appear to be projected onto the base of the black border which frames the subject area Figure 2 7 These displays appear during the preview mode prior to the exposure cycle Figure 2 7 Viewfinder Displays PC Board And Prism 32 Spectra System Image System Service Manual The purpose of the displays is to signal the following conditions SUBJ
79. ing events happening 71 Spectra System Image System Service Manual The strobe should not fire The camera shutter blades should remain closed The strobe charging light red should come on and then go off The strobe ready light green should come on Note The green ready light will stay on for approximately 30 seconds and will then extinguish if the camera is not used The counter should index from blank to 10 6 Aim the camera at an object less than one foot 1 meter away and press the S1 S10 button halfway down preview mode The following should happen A warning tone beep beep will sound A flashing yellow triangle within a yellow square will be visible in the viewfinder A red figure 1 will be visible in the viewfinder 7 On the camera control panel slide the Feet Meters selector switch to the down meters position Again aim the camera at a subject less than a foot away and press the S1 S10 button half way down The following will happen A warning tone beep beep will sound A flashing yellow triangle within a yellow square will be visible in the viewfinder A red figure 1 will be visible in the viewfinder 8 Slide the Feet Meters selector switch on the camera control panel back to the up feet position 9 Aim the camera at an object exactly four feet 1 2 meters away and press the S1 S10 button down half way The following should happen A green circle within a green
80. is being used The wireless remote is used to fire the camera from as far as 40 ft 12 1 m away This accessory consists of a receiver which plugs into the camera remote socket and an FM transmitter Since it is an FM system a line of sight between camera and transmitter is not required 10 Spectra System Image System Service Manual C SPECTRA FILM Spectra System film has new dye molecule technology to produce more brilliant colors and more detailed reproductions than ever before in instant photography The film uses an integral format like SX 70 Time Zero and 600 film That is development takes place within the sealed frame of the film with no external negative to discard Each pack contains 10 frames and a P80 configuration 6 volt battery The battery powers all camera functions including the electronic flash The most obvious difference between Spectra film and that of the SX 70 or 600 format are the dimensions of the film frame Figure 1 5 provides a comparison of the two formats As you can see the Spectra format results in a horizontal picture which is slightly larger than SX 70 or 600 pictures Obviously if desired the camera can be turned to change the picture format to vertical Spectra System film is rated at ISO 600 29 Jue 3 062 _ 3 562 7 777cm 9 047cm r 3 125 9 568 sq in 7 937cm 61 762 sq cm o L 10 240 sq in 66 061 sq cm asn 7 302em SX 70 OR 600 SPECTRA Figure 1 4
81. isplay is turned off and 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 information the strobe fires film is exposed light measurements determine when to shutdown the strobe and close the shutter blades and the film frame is processed The following describes how these actions take place Figure 2 35 shows the Quintic system in the starting conditions before an exposure is made The encoder circuit LED and photodiode is on in readiness to start reading Quintic Lens movement Solenoid 1 is turned on holding the shutter blades closed in readiness for Quintic movement Moving TT Quintic Solenoid ve o Walking B Drive link es Figure 2 35 Quintic Lens System in Starting Condition 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 2 36 The Quintic Lens thus starts to pivot counter clockwise 56 Spectra System Image System Service Manual _ Moving Quintic Lens Walking Beam Figure 2 36 Kick Spring Starts Quintic Lens Movement As the Quintic pivots counterclockwise light from the encoder LED is alternately blocked and allowed to pass through to the encoder photodiode These pulses of light are created by windows along the
82. lay Prism Assy amp Features Flex 129 Spectra System Image System Service Manual 11 REMOVING EXPOSURE FLEX Parts which must be removed before doing this procedure Top Mid amp Bottom Covers NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE P N 13123 a Remove Photodiode retainer from Shutter Baseblock using tweezers b Remove gray Encoder wires from 4 wire connector on Exposure Flex c Remove Flex push on connectors from Solenoid 2 d Remove Flex push on connectors from Solenoid 1 e Disconnect Exposure Flex from Strobe Board and put aside see Step 9 f Using right angle needlenose pliers disconnect Exposure Flex from Ranging Board Let Ranging Board hang out of way g Remove Insulating Shield h Remove Exposure Flex from Features Flex with right angle needlenose pliers i Remove Flex from Motor and Gear Train Flex by lifting connector block out of its holder Then use needlenose pliers to remove Exposure Flex from connector j Remove Exposure Flex with its adhesive strip by prying the adhesive strip off the Cone 130 Spectra System Image System Service Manual Shutter Baseblock a Remove Phodiode Bee Retainer L Solenoid 2 Baseblock d e Exposure Flex 1 S i Solenoid 1 Connector Block Motor amp Gear Train Flex Four Wire Connector Connector Holder in Rear of Frame Figure 4 12 Removing Exposure Flex
83. lm speed from pack to pack On normal film packs 600 ASA a tab on the side of the film pack opens the switch On slow film packs below 600 ASA there is no tab so the switch stays closed With the switch closed exposures are increased by the equivalent of l 3rd of a stop 16 Spectra System Image System Service Manual BUILT IN SELF TIMER Self Timer Warning LED Self Timer Switch Figure 1 11 Self Timer Switch And Warning LED Incorporated into the Spectra camera is a self timer Controlled by a switch on the camera control panel the self timer delays an exposure for 12 seconds from the time the switch is set To use the self timer the scene is previewed and framed by pressing the shutter button halfway Next the control panel switch is pushed down For the next 10 seconds the camera will emit intermittent beeps and a red LED on the face of the camera will flash The beeps and flashes quicken as the camera counts down For the final two seconds of the timeout the beep and the LED is steady ERECTING TELESCOPIC VIEWFINDER Viewfinder Assembly Figure 1 12 Erecting Telescopic Viewfinder 17 Spectra System Image System Service Manual The viewfinder in the Spectra is not fixed in one position as in prior Polaroid cameras It is located within the cone assembly and moves up erects as the camera is opened and moves down with the cone as the camera is closed Another feature of the viewfinder is
84. m latching it in position Thus when solenoid 1 is deenergized all the components are in the same position they were in before the exposure cycle started Moving Quintic 7 Lens Solenoid 1 Walking Beam Figure 2 12 Quintic Lens System Starting Conditions 37 Spectra System Image System Service Manual Drive Link Beam Figure 2 13 Kick Spring Starts Quintic Lens Motion Ranging Circuit Encoder Circuit Cutouts in Quintic Frame Pulse Light Figure 2 14 Encoder Circuit Reads Light Pulses 38 Spectra System Image System Service Manual Solenoid 2 Catch Pawl Engages Quintic Stopped Solenoid 2 K LR N JO Energized SAS Quintic Lens Figure 2 15 Catch Pawl Stops Quintic Lens The chart which follows shows the corresponding subject distance for the ten zones of focus Spectra System Quintic Lens Focus Zones ZONE SUBJECT DISTANCE Feet Meters 1 20 Infinity 6 09 Infinity 2 10 20 3 04m 6 09m 3 6 62 10 0 2 02m 3 04m 4 4 98 6 62 1 50m 2 02m 5 4 02 4 98 1 22m 1 50m 6 3 35 4 02 1 02m 1 22m 7 2 86 3 35 0 87m 1 02m 8 2 48 2 86 0 76m 0 87m 9 2 19 2 48 0 68m 0 76m 10 1 53 2 19 0 47m 0 68m 39 Spectra System Image System Service Manual EXPOSURE CONTROL Spectra Hybrid Exposures The Spectra System uses a hybrid exposure system to regulate the amount of light reaching the film
85. moving Mid Cover EE 3A MID COVER DISASSEMBLY a To remove Eye Cup use greenstick to spring out tabs on Eye Wedge Retainer Remove clear plastic Eye Wedge Eye Cup can now be removed from Eye Wedge Retainer b To remove Counter Window use greenstick to gently unhook top tab of Window c To remove the Rear Decorative Plate from Mid Cover pop it out from the inside of Mid Cover and peel off Or carefully pry off from the outside with Exacto knife two types d To replace Front Decorative Plate pry up with tool and peel off 122 Spectra System Image System Service Manual Eyecup Counter Front decorative Window oY Green Stick plate not shown Push here to pop out one type of Decorative Figure 4 4 Removing Eye Cup and Counter Window from Mid Cover 4 REMOVING BOTTOM COVER Parts which must be removed before doing this procedure Top Cover and Mid Cover a With camera erect pry off Erect Button with greenstick screwdriver b Carefully insert flat bladed screwdriver behind locking tab and bend tab slightly to unhook it CAUTION DO NOT LET SCREWDRIVER SLIP AND DAMAGE INDUCTOR COIL ON RANGING BOARD Pull Bottom Cover away slightly c Insert greenstick as shown Using it as a lever gently unsnap Bottom Cover d To remove Cover invert camera Holding Cone with one hand first slide Cover to rear about 1 2 with other hand Then lift Cover up and off Lugs on inside of Cover mu
86. ness Strobe Exposure Less Than 17 ft Time out at 44 ms Integration Low Brightness More Than 17 ft Time out at 2 8 sec or Integration Figure 2 20 Spectra Low Brightness Strobe Exposures In low brightness conditions when subjects are under 17 feet from the camera determined by the transducer timeout will occur 44 5ms after first light unless the exposure is terminated earlier by the integration of enough light through the photocells For subjects beyond 17 feet in low brightness settings exposure timeout occurs 2 8 0 3 seconds after first light again unless the exposure is terminated sooner by the integration of sufficient light 43 Spectra System Image System Service Manual FIRST LIGHT DETECT The first light detect takes place 20 3ms after solenoid 1 is released An opening in the shutter blades allows light from the encoder LED to reach the phototransistor of the encoder pair Figure 2 21 This action gives the encoder circuitry one count and acts as a starting point for exposure timeouts as mentioned above Encoder Circuit Phototransistor Opening in Blades Encoder LED Figure 2 21 First Light Detect 44 Spectra System Image System Service Manual DUAL PHOTODIODE Light integration in the Spectra is determined by measurements taken through a dual photodiode Figure 2 22 Dual f Photodiode Dual Photodiode Filter _ Top Green for am Visible Light d Bott
87. ng Telescopic Viewfinde cccccccccceeeenecceeeeeeeeeeeeeeeeeees 17 Figure 1 13 Spectra Camera Viewfinder Displays e 18 Figure 1 14 Spectra Camera Control Panel eee 19 Section 2 Theory Of Operation Figure 2 1 Spectra System Strobe ccccccceccecceeeewceceeeeeeeeeeeeeeeeeeeeeeeeeeemesees 24 Figure 2 2 Schematic of Spectra Srobe nr nono nnnnnnns 27 Figure 2 3 Comparison of Spectra and SX 70 Film FormaltS ccccccccnnnnccnncnnnos 28 Figure 2 4 Spectra Camera Viewfinder Assembly e 30 Figure 2 5 Viewfinder Components sese eee eee ee 31 Figure 2 6 Viewfinder Displays 32 Figure 2 7 Viewfinder Displays PC Board and Parm 32 Figure 2 8 Model 660 Rotating Lens DISK esse 34 Figure 2 9 Comparison of Spherical and Aspherical Lenses eee 34 Figure 2 10 Interaction of Aspheric Lenses eee 35 Figure 2 11 Components of Quintic Lens System cssseeeeeteeeeeeeeeeeeees 36 Figure 2 12 Quintic Lens System Starting Conditions eee 37 Figure 2 13 Kick Spring Starts Quintic Lens Motion sese eee eee e 38 Figure 2 14 Encoder Circuit Reads Light Pulses 38 Figure 2 15 Catch Pawl Stops Quintic Lens sse eee eee 39 Figure 2 16 Hybrid Light and Distance Measurements 40 Figure 2 17 Model 640 ExpOSures cccceeeeeeeeeeeeeemeeeeeeeeeeeeeeeaaaaeeeeeeeeseemenees 41 Spectra System Image System Figure 2 18 Figure 2 19 Figure 2 20 Figure 2 21 Figure 2 22 Figure 2 23 Figure
88. nt on the ranging information supplied by the transducer The exposure control system on the Model 660 is called a follow focus system 41 Spectra System Image System Service Manual Large Aperture for Far Subjects Small Aperture for Close Subjects Figure 2 18 Model 660 Exposures Advantages Disadvantages There are advantages and disadvantages associated with both systems With the Model 640 strobe exposures are more consistent But because of the characteristics of a quench circuit and because it is a fixed focus camera the strobe range is limited 4 to 10 Conversely the Model 660 uses variable shutter apertures and has a lens System which can be focused These features increase the strobe range to 2 to 14 But because the strobe always operates at full output the strobe exposures are not as consistent as exposures with the Model 640 The Spectra System borrows the best features of both these models to provide consistent strobe exposures at extended ranges 42 Spectra System Image System Service Manual Spectra System Light Measurements A brightness detect reading is taken by the exposure circuitry during the preview mode Scene brightness is measured at this time and is categorized into high brightness above 12 cd ft2 or low brightness below 12 cd ft2 In high brightness conditions the strobe will fire as a fill flash High Brightness Fill Flash Figure 2 19 Spectra High Bright
89. om Black for Infrared Light Figure 2 22 Dual Photodiode The top half of the photodiode measures all visible light while the bottom half measures the infrared portion of the light spectrum By utilizing a dual photodiode system light measurements are more precise than in previous cameras These measurements determine whether the strobe is to fire at full output or if there is to be a partial strobe output quenching VIEWFINDER DISPLAY BRIGHTNESS The brightness reading taken during the exposure mode also serves to determine the brightness of the displays in the viewfinder There are two intensities for the displays In low light levels below 12 cd ft the intensity of the viewfinder displays is diminished while the intensity is increased to offset high ambient scene brightness above 12 cd ft 45 Spectra System Image System Service Manual SPECTRA SYSTEM AUTOFOCUS Because of packaging constraints the Spectra System transducer had to be made smaller than transducers used in previous Polaroid cameras Figure 2 23 Earlier Polaroid transducers have a diameter of 1 5 inches the transducer in the Spectra has a 1 1 inch diameter Additionally a plastic grill over the Spectra transducer gives it the appearance of being square Transducer Spectra System Figure 2 23 Spectra System Transducer The transducer provides subject distance information to the encoder circuit The distance information determines
90. om Cone then gently prying it out from the two retainers on the Main Frame see Figure 4 25a b Unhook Erect Button Return Spring c Push Erect Button Latch to rear of Main Frame d With hook end dental tool or small screwdriver lift up tab in bottom of cavity so that it clears and slides past the shoulder when Latch is pushed further to the rear see enlargement Figure 4 25b When tab clears this shoulder and moves about 1 8 further to rear Latch will be free and can be lifted out e Remove Link Break 157 Spectra System Image System Service Manual Pry out Erecting Lift Tab Retainers Link Break Erect Button Latch Figure 4 25 Removing Erect Spring Button Latch amp Link Break 24 REMOVING BELLOWS BOOT Parts which must be removed before doing this procedure All Covers Erecting Linkage Erect Button Latch Shutter Assembly Features Flex Strobe Board and Ranging Board Place Strobe Board Ranging Board amp Exposure Flex aside a With greenstick or screwdriver unsnap the two metal tabs on Lower Bellows Retainer b Pull Bellows toward you slightly to free the opposite side c Remove Cone from Main Frame pivot posts d Remove Bellows Retainer by inserting narrow blade screwdriver in each of five tab slots Lift and release each tab on Bellows Retainer from wedge shaped boss on inside of Cone by moving blade as shown in enlarged view in Figure 4 26 158 Spectra System Im
91. om under the tab and remove the Door Link with the spring e Remove the Erect Switch Link f Remove the Pack Counter Disc if present 134 Spectra System Image System Service Manual g Disconnect the Pick Spring from the Pack Pawl and remove the Pack Pawl h Remove the Timing Gear i Remove the Pick with the Pick Spring still attached j Remove the Counter Wheel with the Counter Wheel Spring k Remove Gear 3 1 Referring to Figure 4 14b remove the Door Latch m Remove Gear 2 n Remove Gear 1 135 Spectra System Image System Service Manual Gear 4 Door Link amp Nowe Suppressor Erect Switch Link Timing Gear 3 Gear 1 Gear 2 Counter Pick Wheel Pack Paw L FA S y Figure 4 14a Gear Train Disassembly Pry to Separate Latch from Main Frame Figure 4 14b Removing the Door Latch 136 Spectra System Image System Service Manual 12B GEAR TRAIN REASSEMBLY CAUTION IT IS EXTREMELY IMPORTANT THAT ALL PARTS ARE PROPERLY ALIGNED AFTER YOU HAVE REASSEMBLED THEM THE POSITION OF THE WIREFORM SWITCHES IS ESPECIALLY CRITICAL IF THE PARTS ARE NOT PROPERLY INSTALLED THE CAMERA WILL NOT OPERATE CORRECTLY BE CERTAIN THAT YOU REASSEMBLE ALL GEAR TRAIN PARTS ACCORDING TO THE INSTRUCTIONS REFER TO FIGURES 4 14c AND 4 14e TO DOUBLE CHECK YOUR WORK a Install Gear 1 and the Noise Suppresser washer Note that Gear 1 has a hub on the shaft above the small gear segment
92. omplaint is RANGING related Remove the Top Cover and inspect the following areas Feature flex broken VR1 on Ranging module broken or misadjusted Ranging module to Exposure module connection Transducer wire connection For those cameras where NO INFORMATION is available Remove both Top and Bottom Covers and inspect the following areas Solenoid 1 and 2 connections Encoder wire routing Exposure flex improperly soldered causing pressure sensitive shorts Strobe board connections Smooth Quintic operation Flex shorting in the Counter area Motor connector 101 Spectra System Image System Service Manual STROBE EXPOSURE BLADES DON T OPEN BLADES SPEED CHECK ALL CONNECTIONS AT CONNECTORS J1 J3 J14 J15 J16 J17 J5 J6 J7 J8 DOES STROBE FIRE SEE NO STROBE FIRE OR NO STROBE CHARGE IS STROBE OUTPUT IN SPEC IS CAMERA RANGING PROPERLY NO SEE SECTION LABELED RANGING IMPROPERLY IS BLADE SPEED WITHIN SPEC YES NO CHECK SHUTTER FOR MECHANICAL FAILURE IS STROBE EXPOSURE READING SIMILAR NO TO BLADE SPEED CHECK QUENCH COMMAND DURING STROBE EXPOSURE ON STROBE BOARD AT CONNECTOR J3 PIN 2 DOES Q PULSE FROM HI TO LO YES REPLACE STROBE BOARD IS SHUTTER IN PROPER WORKING ORDER YES NO REPLACE REPAIR E M FLEX SHUTTER 102 Spectra System Image System Service Manual NO ENCODER CHECK ALL CONNE
93. open m Replace Encoder LED in Lens Mounting Plate Engage Catch Pawl Spring under Post on Baseblock Engage Quintic Return Spring under Tab on Baseblock Figure 4 19h Install Catch Pawl amp Quintic Lens 18 REMOVING SHUTTER ASSEMBLY AS A UNIT Parts which must be removed before doing this procedure All Covers Shutter Front Housing Also lift aside the Transducer Housing Assembly and Reflector Assembly NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE P N 13123 a Baseblock is held to Cone by four spring fingers two visible on the top of the Baseblock which engage shoulders on the Cone two more partially hidden on the bottom of Cone which engage shoulders on the bottom of the Baseblock see locations 1 2 3 amp 4 on Figure 4 20 Start removal with the top fingers 1 amp 2 150 Spectra System Image System Service Manual b Remove Photodiode Cover on Exposure Flex from the back of Baseblock Remove Exposure Flex connectors to Solenoid 2 and disconnect Encoder 4 wire ribbon cable from connector on Exposure Flex c With camera facing away from you and looking directly down on it insert greenstick or small screwdriver under T end of finger 1 slightly to release it d With dental hook or greenstick now push finger 2 to the right slightly to release it Now pull Shutter Assembly slightly forward away from Cone e Insert narrow blade screwdriv
94. outing within the Erect Spring side of the Main Frame Open jaws of needlenose pliers to fit in Piezo Cover then twist pliers to remove Cover Disconnect Piezo Wires A from Features Flex 2 Connector Flapper Door Spring C E over Piezo gt Figure 4 21 Removing Piezo Assembly and wires 153 Spectra System Image System Service Manual 20 REMOVING SOLENOIDS 1 AND 2 Parts which must be removed before doing this procedure All Covers Shutter Assembly a To remove Solenoid 1 first remove Drive Link see step 2 Place right angle tip of dental tool in hole in Solenoid bracket Push in slightly to release spring detent finger b While depressing detent finger push up on Solenoid to slide it out of its bracket Keep finger over base of Solenoid to prevent loss of plunger CAUTION Solenoid 2 cannot be replaced individually If Solenoid 2 is defective and must be replaced you must also replace the Baseblock Assembly The reason for this is that there are two tabs on the Baseblock which are destroyed if you remove Solenoid 2 Therefore when replacing the Solenoid you must first install a new Baseblock which has these tabs intact SOLENOID 1 A I Release gt Spring Detent SOLENOID 2 Finger Dental Pick HER Push Down Push Up LS Press Spring Tab in to release Solenoid Figure 4 22 Removing Solenoids 1 amp 2 from Baseblock 154 Spectra System Image System Service Manual 20A INSTALLIN
95. p ON except for the Audio beeper switch Keep the Lighten Darken switch in the mid point normal position 4 Leave the Photocell on the camera uncovered 5 Set the Test Selector Switch to FLASH EXPOSURE Test Procedure 1 Press the Shutter Button fully and note the reading on the Stops Error Meter 2 Repeat the procedure two more times noting the Stops Error Meter readings Compare the readings to the Specification 3 If the test readings are not within specification perform the Adjustment Procedure 2 for IR Strobe Exposure Calibration Slide and retest 4 If adjusting the IR Calibration Slide fails to bring the Strobe Exposure Test reading within specification check that the IR black filter is seated 86 Spectra System Image System Service Manual check that photocell is seated in the baseblock check that the photocell cap is seated properly 5 If the above steps do not bring the Strobe Exposure Graywall reading within spec proceed to the ZLS Graywall Test ZLS ZONAL LUMEN SECONDS GRAYWALL Purpose This test measures the maximum strobe output This is done by measuring the energy on the film plane during a 4 5 feet 135cm graywall exposure with the shutter blades fully open Test Setup 1 Trip the Door Switch on the camera into the down position 2 Place the camera on the Horn on top of the Tester with the lens 4 5 feet from the graywall The front of the camera must be parallel to the g
96. pairs it is not necessary to completely disassemble the Camera only certain covers subassemblies or adjacent parts need to be removed to gain access to the part to be repaired replaced Reassembly instructions are provided for the more complex sub assemblies for example the Gear Train and Shutter assemblies To reassemble other Spectra assemblies follow disassembly instructions in reverse order At the beginning of each disassembly procedure the statement Parts which must be removed before doing this procedure lists what if anything must be disassembled or removed before doing the particular procedure Flexes handle carefully and avoid sharp bending crimping or scraping Protect contacts from damage Technician Grounding To prevent static charges from destroying the electrically sensitive integrated circuits chips on many of the Spectra s flex circuits and boards the technician should be properly grounded before starting disassembly or reassembly Wrist strap must be in place and connected to workplace See also the special CAUTION notice at the front of this section Tools In addition to the usual small flat blade and Phillips head screwdrivers solder aid tool greenstick tweezers and low wattage soldering iron the following will be needed for Spectra disassembly Top Cover Pin Removal Tool P N 13109 Capacitor Discharge Dump Probe P N 13119 Camera Work Support Fixture P N 13123 Fea
97. plane Exposures are controlled by a combination of light measurements and distance measurements Figure 2 16 The light measurements include both ambient and infrared information similar to the Model 640 camera and the distance measurements are derived from ranging information provided by a transducer ranging network similar to the Model 660 camera Although these methods have been employed in previous Polaroid cameras the manner in which they are combined in the Spectra System makes them unique Dual Photodiodes Provide Light Information Transducer Provides Distance Information o TTS SODIO o o o o L ee 0o o o ee 0 eee a II Polaroid MAM KUU GI SNITALNIOO Spectra System Figure 2 16 Hybrid Light and Distance Measurements Polaroid Exposure Basics Before delving into the Spectra exposure system you should first understand some basics about exposure systems in other Polaroid strobe cameras Basically exposures can be controlled by varying the output of the strobe or by firing the strobe at full output and varying the size of the shutter blade aperture to control the amount of light reaching the film These methods can be related to the Model 640 and the Model 660 cameras 40 Spectra System Image System Service Manual Model 640 Integrating Strobe The Model 640 is a fixed focus camera which varies the output of the strobe to control exposures Basically the Model 640
98. position If it isn t push down on the arm of the Door Latch to raise the Door Link Replace Gear 4 Long Spring Finger Gear 4 fits Under Tab C E Suppressor gt Gear HH M Gear 2 E Gear 3 Timing Gear Counter Load Spring Pack Pawl into Counter amp FS Spring turn CCW G Ss Attaches to tl 7 lt i Counter will rise S L AO Pack Pawl at over TabD amp VES AZARES ON Point A 8 lock into place A Pick at Point B aT A Ls OF Tab D NGA Figure 4 14c Gear Train Reassembly 138 Spectra System Image System Service Manual Tab on Main Frame locks into hole on Door Latch Tab on Door Latch locks into hole on Main Frame Metal Spring protrudes forward Latch Tab goes under Metal Spring Figure 4 14d Installing the Door Latch Wireform under Lower Pin on Door Link Wireform between Pins on Two Wireforms over Pin on Gear Train Timing Wheel is 4 positioned so Z ends of CAM are at nine amp five o clock S9 Wireform under Counter Wheel Pin Wireform between CAM segments on Timing Wheel Counter Wheel is positioned so Pins are at one amp two o clock Figure 4 14e Wireform Switch Orientation 139 Spectra System Image System Service Manual m Referring to Figure 4 14e carefully position the Wireform Switch Block over the assembled Gear Train AGAIN THE IMPORTANCE OF CORRECT POSITIONING OF ALL THE WIREFORM SWITCHES CANNOT
99. raywall and the area visible in the viewfinder must be clear of objects 3 Slide all switches up ON except for the AF and Audio OFF Set the Lighten Darken switch to the NORMAL setting 4 Cover the Photocell 5 Set the Test Selector Switch to 7000 ZLS Test Procedure 1 Press the Shutter Button fully and note the reading on the ZLS Meter Compare the reading to the Specification 2 Ifthe ZLS Test reading is out of Specification replace either the Flashtube Assembly or the Strobe Board and retest 3 If the ZLS Test reading is within Specification but the Strobe Exposure Graywall reading is still out of spec perform the Hybrid Test 87 Spectra System Image System Service Manual HYBRID ZLS BLADE SPEED TEST Purpose This test measures the resultant energy on the film plane from full strobe output through partially open blades to determine whether the blades open at the proper speed and the strobe fires at the proper time If the results of this test are satisfactory it means that maximum strobe output blade speed and ranging are all functioning properly Test Setup 1 Trip the Door Switch on the camera into the down position 2 Place the camera on the Horn on top of the Tester with the lens 4 5 ft from the graywall The front of the camera must be parallel to the graywall and the area visible in the viewfinder must be clear of objects 3 Slide all camera switches up ON except the Audio OFF 4 Cover
100. rement of light The light measurement is used to set lens aperture shutter time out and to determine when the electronic flash is to be shut OFF ELECTRONIC TRIM Figure 1 9 Electronic Trim Switch 15 Spectra System Image System Service Manual A switch on the camera control panel allows the user to make exposures lighter or darker to suit personal tastes In the past trim which may be defined as overriding the light measurement system to make pictures lighter or darker was accomplished by moving a translucent wedge of graduated shading over the photocell The wedge will fool the photocell into believing that the ambient scene light was lighter or darker depending on the darkness of the shading over the photocell The photocell would then order the exposure time out according to the perceived scene light In the Spectra camera trim is attained electronically Moving the trim switch causes the exposure module to increase or decrease shutter time outs 2 3 stop Moving the switch to lighten increases the shutter time out 2 3 stop Moving the switch to darken decreases the exposure the equivalent of 2 3 stop There are no graduations between these extremes The exposures are either taken at nominal are increased a full 2 3 stop or are decreased a full 2 3 stop FILM SPEED SWITCH Film Speed Switch Figure 1 10 Film Speed Switch A switch in the film compartment of the camera is used to compensate for minor differences in fi
101. rent Meter ZLS Meter Power Switch Pack Simulator Jack Strobe Adapters two Horn Cable Connector Disc Detector Connector J4 Connector Test Point Connectors Digital readout of strobe recycle time or blade speed Digital readout of circuit voltages also use with probe in Volt Probe Jack Digital readout for Ambient Hybrid Strobe Exposure Tests Digital readout of energy required to charge strobe capacitor Digital readout of strobe light output in Zonal Lumen Seconds AC line voltage On Off to Tester Lights when Tester is powered Connection for film pack simulation voltage Lets Tester function as a power supply Aligns electronic flash of 600 680 camera under test to Star Tester Accepts plug on Horn cable Accepts cable from 660 Disc Detect Ride Time Fixture For future applications For connections to oscilloscope Also used for calibrating Tester Not used for testing Spectra System cameras Spectra System Image System Service Manual CAUTION WHEN TESTER IS NOT IN CONSTANT USE TURN SELECTOR SWITCH TO 7000 ZLS POSITION THIS SAVES WEAR ON LIGHT SOURCE KEEPS TESTER IN NEUTRAL STATE READY FOR IMMEDIATE RESUMPTION OF TESTING Figure 3 6 Star Tester 12650 3 Controls amp Indicators See text for names amp function of keyed 7 15 16 15 STAR TESTER SETUP AND PRETEST CHECKS 1 Install Tester on level surface with clear area around Tester to allow suffici
102. rid ZLS Blade Speed test procedure Increase Speeds gt Decrease Speeds Change position of Spring in rack to affect blade speed Figure 3 13 Hybrid Test Adjustment Opening Blade Spring tension adjustment 95 Spectra System Image System Service Manual BLADE SPEED OPENING BLADE SPRING Adjustment Procedure 1 Remove the Top Cover from the Spectra Camera see Figure 3 10 2 Using tweezers carefully lift the upper end of the Opening Blade Spring out of its notch in the Shutter Base Block see Figure 3 13 CAUTION DO NOT OVERSTRETCH SPRING 3 Ifthe Blade Speed is too slow reposition the Opening Blade Spring one notch to the right If the speed is too fast reposition the Spring one notch to the left 4 Put Test Top Cover on camera and retest Blade Speed Readjust the Spring position if necessary 5 When Blade Speed is within specification replace Test Top Cover with camera s own Top Cover 6 If adjusting the Spring position will not bring the Blade Speed within specification replace the Spring and retest 7 If Blade Speed is still out of specification disassemble the camera to the shutter level see the Disassembly Reassembly Section of this manual Examine the blade opening parts Walking Beam Inertia Assembly Drive Link etc and the Shutter Blades for dirt binding parts and damage Correct any problems found reassemble the camera and retest Blade Speed Readjust Opening
103. righter colors than before The most obvious difference between the Spectra System film and that of the SX 70 format are the dimensions of the film frame Figure 2 3 provides a comparison of the two formats You can see that the Spectra System film format results in a horizontal picture while the earlier format has a vertical picture format Obviously the camera can be turned to change the format from horizontal to vertical The film is housed in a pack along with a P80 configuration 6V battery There are ten frames in the pack Spectra System film is rated at ISO 600 29 3 1 16 in 3 9 16 in E 3 1 8 in 9 568 sq in 10 240 sq in 2 7 8 in SX 70 OR 600 Spectra Figure 2 3 Comparison of Spectra and SX 70 Film Formats 28 Spectra System Image System Service Manual VIEWFINDER The viewfinder in the Spectra System camera is known as an erecting telescopic informational viewfinder Its name is derived from the unique features which set it apart from traditional viewfinders found in earlier Polaroid cameras The viewfinder is a self contained assembly which may be removed from the camera in one piece The first of the features which make it different from earlier viewfinders is the fact that it is not fixed in one position on the exterior of the camera The entire viewfinder assembly moves with the cone as the camera is folded and unfolded This departure from viewfinders in earlier models allows the ext
104. rocess on right side inserting blade in slot just below lower leg of right spring Push blade to right and release right side Remove Spread Assembly Gear Side LES Push to release Spring Tab Blade Figure 4 7 Removing Spread System from Door 7 REMOVING RANGING BOARD Parts which must be removed before doing this procedure Top Mid and Bottom Covers Strobe Board Retainer Disengage S10 S1 assembly from tab remove Exposure Flex from Strobe Board place Strobe on Gear Train side and remove Insulating Shield 125 Spectra System Image System Service Manual NOTE BEFORE DOING THIS PROCEDURE CAREFULLY NOTE THE POSITION OF ALL WIRES ON REASSEMBLY THEY MUST BE REPLACED IN THEIR ORIGINAL POSITIONS NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE PAN 13123 a Pull Board slightly to the left and then out from camera b Remove Flex from connector using Flex Shim Tool or right angle needlenose pliers c Bend board downward and with pliers or tweezers straighten leads of transducer wires where they enter quick disconnect terminals Disconnect red wire first by straightening tip at end of connector Remove black wire by pulling it out of quick disconnect shell Wires may be soldered and require unsoldering d Remove Ranging Board Flex Connector ____ Ranging Board Ranging Board Ranging Board Figure 4 8 Removing Ranging Bo
105. s Remove LED b Insert small screwdriver in square hole at base of Drive Link Push in slightly to release locking tab on Baseblock Pry up slightly to remove Drive Link 155 Spectra System Image System Service Manual Press down edge of Baseblock to ral release LED oS Push in and pry up Figure 4 23 Removing Drive Link from Baseblock 22 REMOVING ERECTING LINKAGE Parts which must be removed before doing this procedure All Covers Flapper Door Shutter Assembly see Step 18 NOTE THIS PROCEDURE IS DONE MOST EASILY AND QUICKLY WITH CAMERA MOUNTED ON WORK SUPPORT FIXTURE P N 13123 a With Cone facing you and right side up use needlenose pliers to remove pivot pin from lower right side of Lower Erecting Link b Grasp Upper Erecting Link as shown in Figure 4 24 Push left sideplate of Cone outward to free pivot socket from pivot pin on Cone c Continue spreading left sideplate of Cone until Lower Erecting Link disengages d Right side of Erecting Linkage may now be freed from Cone 156 Spectra System Image System Service Manual MH Left Side Plate e EG E 2 R OF p c TK TU Remove Pivot Pin g LL vi ae py se i e an 7 Erecting Link f l xX a Pivot Erecting Linkage E Figure 4 24 Removing Erecting Linkage from Main Frame 23 REMOVING ERECT BUTTON LATCH Parts which must be removed before doing this procedure All Covers a First remove Erect Spring by unhooking it fr
106. sembly eeren 161 Figure 4 29 Replacing a Defective MirTOF ooooooccocccccccccccccccomencnnoncnnnnnnnccnnnnnnos 163 Figure 4 29a Determining Mirror Taking SIde sss sese 163 Figure 4 30 Routing Transducer Wies sssssss sees sees eeeer cerner errno nnn neee 164 Figure 4 31 Routing Strobe Wires Routing Piezo Wies 165 Figure 4 32 Routing Batt Cont Wires Features Shield Wire Motor Flex Wire 165 Figure 4 33 Routing Encoder Wires ccccccceeeeeeeeeeneeeeeeeeeeeeeeeeaaaaaeeeeeeeeem 166 Figure 4 34 Exposure Flex Conneciionga e reren 167 Spectra System Image System Service Manual SECTION 1 GENERAL DESCRIPTION A INTRODUCTION T 8 B ACCESSORIES uta a 10 Cs SPECTRA T ts One A A Ade ee Nin 11 D CAMERA TECHNOLOGY as Rae EEZ Taar AE nn cnn a TRT erT AEC 12 QUINTIG LENS SYS REM TTT 12 THYRISTOR ELECTRONIC FLASH acriter aai a ai a aE a E E 13 SONAR RANGEFINDING cuina iria aet 14 EXPOSURE SYSTEM LIGHT MEASUREMENTS see 15 ELECTRONIC TEINT ERa cual ether tess th motets Gaede desea lobe OTER TREE yae 15 STB SPEED SWITCH naient ciel iach hee audigy aah het ale init ha Ailes 16 BUILTIN SELF PIMER atra Ia toda 17 ERECTING TELESCOPIC VIEWFINDER sese eee eee 17 INFORMATIVE VIEWFINDER inreda ia eaaa p en ne EA nnne mann nn nn nr nr rra nan a i i 18 SPECTRA CAMERA CONTROL PANEL 19 E SPECTRA SYSTEM SPECIFIC ATIONS 20 Spectra System Image System Service Manual A INTRODUCTION The Spectra System represents t
107. small screwdriver in slot at right end of Gear Train Cover and gently tilt handle down to release the Cover see Figure 4 13d Door latch must be in the down position push down on end of Door Latch nearest gear 4 j Now free opposite end of the Gear Train Cover near the Counter Wheel by inserting a screwdriver at the two places shown in Fig 4 14e Gently pry the upper finger upward the lower finger outward Rotate the Cover outward freeing the top first and then unhooking the bottom of the Cover from the tab next to the film switch Flex Retainer Door release Button Gear Train Cover Free forward end of cover Figure 4 13c Figure 4 13d Removing Flex Retainer Removing Door Release Button 133 Spectra System Image System Service Manual Pry Up ee Figure 4 13e Removing Gear Train Cover 12A GEAR TRAIN DISASSEMBLY Parts which must be removed before doing this procedure All Covers Gear Train Cover amp Gear Train Motor Flex NOTE THIS PROCEDURE IS DONE MOST EASILY WITH THE CAMERA MOUNTED ON WORK SUPPORT FIXTURE 13123 THE CAMERA SHOULD BE ERECTED AND THE DOOR SHOULD BE OPEN NOTE AS AN AID TO REASSEMBLY WHEN REMOVING PARTS POSITION THEM ON THE BENCH IN THE ORDER IN WHICH THEY WERE REMOVED a Carefully lift off the Wireform Switch Block from the gear train b Remove the Noise Suppresser washer from Gear 1 See Figure 4 14a c Remove Gear 4 d Release the Door Link Spring fr
108. square will be visible in the viewfinder 72 Spectra System Image System Service Manual A red figure 4 feet will be visible in the viewfinder A red figure 1 2 meters will show in the viewfinder if the Feet Meters switch on the camera control panel is in the down meters position 10 Cover the transducer using the fingers or palm of your left hand as shown in Figure 3 3 or you can cover the transducer with photographic tape Use care to prevent covering the photocell Press the S10 S1 button half way down This simulates an infinity exposure The following should happen Cover transducer with hand or tape Do not cover photocells Figure 3 3 Covering the Transducer to Simulate an Infinity Exposure No red figure should be visible in the viewfinder Depending on the ambient light available a flashing yellow triangle within a yellow square with warning beeps or a green circle within a green square will be visible in the viewfinder The warning yellow triangle will appear in low light level situations while the green circle will appear if there is adequate light for a good exposure 11 Now aim the camera at an object within the range of 2 feet 6 meter to 15 feet 4 5 meters and press the S1 S10 button all the way The following should happen The strobe should fire 73 Spectra System Image System Service Manual You should hear the camera go through an exposure cycle The blades shoul
109. st first slide back to clear retaining ramps on Cone e To remove Tripod Nut if necessary rotate Nut 1 4 turn clockwise with pliers to free internal lugs Nut then lifts out f To remove Film Pack Springs if necessary lift and bend legs slightly with pliers then lift them out 123 Spectra System Image System Service Manual a Pry off Erect Button Flat Blade Screw Driver Slide Cover to rear Bottom Cover then lift Figure 4 5 Removing Bottom Cover 5 REMOVING FRONT DOOR Parts which must be removed before doing this procedure None a Unhook hinge on side opposite gear train by bending side out slightly b Next unhook hinge on gear train side and rotate cover downward to remove Bend side out to release hinge Figure 4 6 Removing Front Door 124 Spectra System Image System Service Manual 6 REMOVING SPREAD SYSTEM FROM FRONT DOOR Parts which must be removed before doing this procedure Front Door a Carefully insert an Exacto knife with a 11 blade in slot just below the lower spring leg on left non gear side of door Keep blade flat in same plane as rollers with dull edge to your left Tape sharp edge to protect your fingers b Insert blade so that tip is about halfway in between front and rear legs of spring Push blade slightly to left about 1 16 Push hidden spring tab free of retaining shoulder Left side of Spread bracket can then be pulled out slightly c Repeat p
110. tenth frame a three second chime sounds indicating an out of film condition If the empty pack is left in and the shutter button lightly pressed again the three second chime will sound and a blinking O will appear This display will occur again so long as the empty pack stays in the camera and the shutter button is pressed QUINTIC LENS SYSTEM If you recall the Model 660 camera you will note that it has a rotating disk containing four lenses of differing optical value and a fixed taking lens Figure 2 8 The disk is turned until one of its lenses determined by ranging information from the transducer is set behind the fixed lens The combination of the two lenses provides proper focus in one of four zones between two feet and infinity 33 Spectra System Image System Service Manual Figure 2 8 Model 660 Rotating Lens Disk The method by which proper focus is achieved in the Spectra System camera borrows from this concept However it goes well beyond matching two lenses and represents a unique technological achievement in optics At the heart of the Spectra focus operation is the Quintic aspheric lens system Figure 2 9 shows the difference between spherical and aspherical lenses Examples of Spherical Lenses Example of Aspheric Uneven Surface Figure 2 9 Comparison of Spherical and Aspherical Lenses To understand how the Spectra System lenses work you should first know about the characteristics of aspheric lenses Fi
111. that the camera is not ready for another exposure When the capacitor has stored enough energy for another flash the red LED goes out and a green LED lights indicating that it is OK to take another flash picture SONAR RANGEFINDING Sonar Transducer Rangefinder Spectra System Figure 1 7 Spectra Sonar Rangefinder Like earlier cameras SX 70 Sonar Pronto Sonar Model 660 Model 680 the Spectra uses sonar transducer ranging to determine subject distance This information is used to set the lens position for proper focus Unlike earlier cameras the transducer on the Spectra is small with an area surface measuring 1 1 square inches versus the 1 5 square inch surface of the earlier transducers 14 Spectra System Image System Service Manual EXPOSURE SYSTEM LIGHT MEASUREMENTS a aa Logic Dual Cell E Photodiode Shutter Blades Ambient Filter E 0 a Infrared Filter Figure 1 8 Spectra Dual Photocell System For Light Measur ements Like the Model 640 and current LMS cameras Spectra uses infrared light measurements coupled with the measurement of ambient visible light to determine optimum exposures However Spectra goes one step further than the Model 640 Spectra incorporates the use of a dual cell photo diode One cell reads only infrared and the other cell reads visible light This unique dual photo diode takes up no more space than the earlier single cell types but provides a far more precise measu
112. the Photocell 5 Set the Test Selector Switch to 7000 ZLS Test Procedure 1 Press the shutter button fully and note the reading on the ZLS meter 2 Repeat the procedure two more times noting each meter reading Compare the readings to the Specification 3 If the test readings are not within specification perform the Hybrid Adjustment procedure and retest 4 If this adjustment does not bring the Hybrid Test reading within specification proceed to the Blade Speed Test 5 If the Hybrid Test reading is within spec but the Strobe Exposure Test reading is still out of spec replace the Exposure Flex and retest 88 Spectra System Image System Service Manual BLADE SPEED Purpose This Test measures the time between first light detection and 95 blade opening Test Setup 1 Trip the Door Switch on the camera into the down position 2 Place the camera on the Horn against the Tester window 3 Slide the AF Strobe and Audio beeper Switches on the camera down OFF 4 Cover the Photocell 5 Set the Test Selector Switch to BLADE SPEED Test Procedure 1 Push the Reset button on the Tester then depress the Shutter Button Disregard the meter reading this sets up Tester circuitry 2 Press the Shutter Button again and watch the Timing Meter carefully Note the reading that remains constant for two seconds Compare this reading to the Specification 3 If the reading is not within spec perform the Blade Speed A
113. the fact that the image path is not in a straight line from the front window to the eyepiece A bend has been designed into the viewfinder optics to accommodate the design of the camera The eyepiece is at the rear corner to allow the user to comfortably hold it at his her eye while the subject is being framed the front window is close to the camera lens to reduce parallax problems A series of lenses and mirrors bends the image from the front window to the eyepiece Another characteristic of the viewfinder which differentiates it from earlier types is the magnification of the image The Spectra viewfinder presents an image which is 20 larger than images seen in 600 line camera viewfinders INFORMATIVE VIEWFINDER Note This illustration is for information only In reality bad conditions and good conditions indicators could not be on at the same time Good Conditions Sao om pa L Indicator Bad Conditions Indicator Distance to Subject Feet or Meters Figure 1 13 Spectra Camera Viewfinder Displays In addition to the characteristics noted above there is one other feature which makes the Spectra viewfinder unique That is the fact that the viewfinder is informative When the shutter button is pressed halfway to preview the scene a set of displays is visible in the viewfinder The viewfinder displays will tell you what the distance is to the subject they will tell you if conditions are good to take a picture they will tell you
114. tice a static shock doesn t mean that there hasn t been one And just as static is not always obvious the damage it creates isn t always obvious until it s too late In fact one or two static discharges may not cause enough damage to adversely affect camera operation However static discharge damage is cumulative Enough static and you will undoubtedly damage the CMOS circuits THEREFORE Whenever you are working on the Spectra camera and any disassembly is required you must wear a grounding wrist strap The workbench surface must be dissipative The workbench itself must be grounded There should be no materials on the workbench which are conducive to the creation of static electricity Styrofoam coffee cups are prime villains If it is necessary for you to carry a disassembled camera away from the grounded workbench to a tester and you must disconnect your wrist strap be certain that you reconnect your wrist strap to a ground at the tester before you place the camera on the tester horn 69 Spectra System Image System Service Manual B SPECTRA SYSTEM FUNCTIONAL TEST GENERAL The purpose of the functional test is to determine if the camera is operating properly during various phases of simulated operation In this test the camera is cycled through dark slide strobe exposures non strobe exposures and end of pack The intent is to isolate problems for troubleshooting If the camera does not operate as described below cons
115. tion than in any previous Polaroid camera Spectra System Image System Service Manual Figure 1 1 Spectra Camera in Closed Folded Position Quintic Three Element Lens Self Timer Sonar Indicator S Rangefinder l 5 Thyristor Electronic Flash Viewfinder Window Film Door Release Figure 1 2 Spectra Camera in Open Position Front View Spectra System Image System Service Manual Shutter Button Hand Strap Neck Strap Viewfinder J Connectors Eyepiece Figure 1 3 Spectra Camera in Open Position Back View B ACCESSORIES A large array of accessories is available for the Spectra camera They include photo displays a camera bag which also accommodates film and accessories a tripod a series of five filters and a wireless remote A holder which snaps over the camera lens secures the filters during use The various filters are used to provide motion lines a center spot surrounded by red vignetting a starburst effect around candles or lights the multiplication of the image into three images side by side or the multiplication of the image into five images one in the center surrounded by four images in the corners of the photo The table top tripod is secured into the tripod nut in the base of the camera It may be used for shots employing the camera s built in self timer or for shots when the wireless remote accessory
116. tocells should flash The flashing will get progressively faster until two seconds before the exposure when the LED stays on At the end of 12 seconds the strobe will fire but the motor will not run Return the self timer switch to the up self timer OFF position The following will happen The motor will run The counter will index to a white 0 against a red background The end of pack chimes will ring three times 17 Press the SI S10 button all the way down The following should happen The end of pack chimes will sound three times The strobe will fire Release the Sl S10 button The camera will cycle 76 Spectra System Image System Service Manual The end of pack chimes will sound three times 18 Look into the viewfinder and press the SI S10 button half way down The following should happen A flashing 0 will be visible in the viewfinder The end of pack chimes will ring three times NOTE Ifthe S1 S10 switch is pressed all the way down with an empty film pack the strobe will fire After the switch is released the camera will cycle This is normal This completes the functional test of the spectra system camera If the camera does not function as described go to the troubleshooting section and refer to the chart which most closely corresponds to the malfunction TT Spectra System Image System Service Manual C STAR TESTER MODEL 12650 3 BASIC DESCRIPTION This Star Tester is an upgrade of the Model
117. tures Flex Removal Tool P N 13124 Long needle nose pliers with coated jaws uninsulated handles Right angle needle nose pliers with coated jaws uninsulated handles Exacto knife with 11 blade Dental pick Wire routing When wires must be moved to allow removal of a part carefully note their placement They must be accurately replaced in their original position for the camera to function properly 118 Spectra System Image System Service Manual DANGER SHOCK HAZARD Immediately after removing top cover ALWAYS DISCHARGE PHOTOFLASH CAPACITOR C 8 BEFORE PROCEEDING to avoid shock Insert Dump Probe P N 13119 so that pins positively contact capacitor terminals Figure 4 2 119 Spectra System Image System Service Manual B DISASSEMBLY OF SPECTRA SYSTEM CAMERA 1 REMOVING TOP COVER Parts which must be removed before doing this procedure None a With camera erect and Front Door closed use Top Cover Pin Removing Tool P N 13109 to remove pin Holding camera inverted depress tab slightly with tool tip and engage pin in end of tool Tilt tool handle backward slightly to grasp pin firmly and pull pin out b Turn camera right side up Insert greenstick between Top Cover and Cone on hand strap side prying Top Cover slightly upward and outward to release detent on inside of cover Close camera and lift cover off Side View Top Cover Pin Remova Tool 13109 Green Stick Push under cover Pry then
118. ult the troubleshooting chart most closely allied with the problem EQUIPMENT REQUIRED Film Pack Simulator 12467 Film Pack Simulator Adapter 13130 Power Supply Power Mate 12531 or Lambda 12429 TEST SETUP F Film Pack Simulator 12467 Film Pack Simulator Adaptor 13130 Figure 3 1 Test Setup for Spectra Functional Test 70 Spectra System Image System Service Manual 1 Except for the trim switch set all the switches on the control panel at the rear of the camera to the UP position automatic mode Set the trim switch to the middle normal position 2 Insert the Film Pack Simulator Adapter 13130 onto the Film Pack Simulator 12467 3 Plug the Film Pack Simulator with adapter into the power supply either Power Mate 12531 or Lambda 12429 4 Plug the power supply into a 110 VAC power source 5 Turn the power supply ON 6 Adjust the power supply output voltage to 6 VDC TEST PROCEDURE 1 Erect the camera and open the film door 2 Install the film pack simulator with the adapter into the camera The camera should not cycle 3 Remove the film pack simulator from the camera 4 Using the tip of a solder aidee close the camera door latch Figure 3 2 Push in with soldering aid greenstick to close door latch Figure 3 2 Close The Spectra Camera Door Latch 5 Install the film pack simulator into the camera again The camera should go through a dark slide cycle with the follow

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