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MP4/MP4+ Repair Manual

1. 122 Figure 5 19 Replacement of Ground Glass 127 Figure 5 20 Removing Shutter Board Retaining Hmg 128 Figure 5 21 Removing Film Pack Door arrennrnnnonnnnavnnnenavnrnnrnenennrnanennenanennsnennnne 129 Figure 5 22 Removing Exit Door Pivot ms 131 Figure 5 23 Installing the Light Seal and Foam Geal 133 Description Polaroid MP4 MP4 Plus SECTION 1 DESCRIPTION CONTENTS A INTRODUCTION EE 10 B DIFFERENCES AMONG MODEL SEENEN 14 C SYSTEM OPTIONS AND ACCESSORIES ecsssesesseseeeesesesseaeeneseeeeneseseeneeeeeneeeneateaes 16 Description Polaroid MP4 MP4 Plus A INTRODUCTION The Polaroid Land Multipurpose MP 4 and MP4 Camera Systems Figures 1 1 and 1 2 re designed for photographing drawings line and halftone artwork photographs and objects of limited size The Systems are extremely versatile and have many uses in industry business medicine science education graphic arts etc Applications include copying small object photography photomicrography photomacrography gross specimen photography and X ray film copying MP 4 and MP4 Systems can be used with almost all Polaroid instant color and B amp W sheet pack and roll films as well as some wet process films With instant films most jobs can be completed within seconds without a darkroom Figure 1 1 MP4 System with standard 35 90cm column and sliding camera head A choice of lenses a macro extension and two column heights make pos
2. Polaroid Repair Manual MP4 MP4 Multipurpose Camera System september 1996 Americas Business Center Technical Services 201 Burlington Road Bedford MA 01730 TEL 1 781 386 5309 FAX 1 781 386 5988 Service Manual Polaroid MP4 MP4 Plus Manual Contents PAST OW WINES TAO E 3 i Pel T e de EE 9 2 MAS UAT PN 24 Se OPEN Need 54 4 IFOUDlESAOO IN Uttar Nene 83 9 ING Pall ale E el EE E EE 90 Service Manual Polaroid MP4 MP4 Plus List of Illustrations Illustrations Page Figure 1 1 MP4 System with standard 35 90cm column and sliding cam head 10 Figure 1 2 MP4 XLR System with 55 140cm rotating column amp baseboard well 11 Figure 1 3 Sliding camera head in viewing focusing position ccocoocooccccocconcnnonoo 12 Figure 1 4 Non Rotatable Column and Rotatable Column 12 Figure 1 5 Counterbalancing weight of camera head when column is rotated 13 Figure 1 6 Storage drawer in MP4 System baseboarde 13 Figure 1 7 Sliding Camera Head Model 2441 16 Figure 1 8 TT AV 810 8X10 Gamer 16 Figure 1 9 Polaroid 8x10 Film Holder amp Film Hroceseor 17 Figure 1 10 Reflex Viewer arve 17 Figure 1 11 Standard aerial image amp calibrated ground glass focusing screens 18 Figure 1 12 Polaroid instant pack and sheet film holders o oococcococnoccncnncono 18 Foue ITS Oer K EEN 19 Figure 1 14 135mm to 17mm lenses 2 cc ccc eececeeeececeseeececeeceeeeee
3. installing Never touch the lamp with your bare fingers fingerprints on the lamp can greatly reduce lamp life d Align the pins on the lamp with the openings in the socket figure 2 57 and push the I amp firmly into position 91 Installation Polaroid MP4 MP4 Plus E KR ai ee Figure 2 57 Inserting Lamp e Replace the lamp housing WARNING Never operate the lamp without the front housing in place 3 Replacing the Fuse The lamp has a fuse holder on the back of the housing figure 2 58 Use a coin or screwdriver to turn the fuse cover in a counterclockwise direction to open it Replace the fuse with one of the same type Figure 2 58 Replacing the Fuse H INSTALLING HOSPITAL PLUG Some hospital regulations require that electrical equipment used in their facility have a grounded transparent plug The MP 4 requires five such plugs The procedure for installing one is as follows 1 Remove the existing plug 52 Installation Polaroid MP4 MP4 Plus 2 Remove the power cord jacket and strip the conductors as shown in figure 2 59 Avoid cutting the jacket more than 0 44 inch SE Figure 2 59 Preparing Cord for New Plug 3 Using hospital plug assembly part number 730054 figure 2 60 insert the stripped conductors into the appropriate terminals of the assembly see table below and tighten the screws CONDUCTOR COLOR SCREW COLOR BLACK BRASS WHITE SILVER GREEN OR GRN YELLOW GREEN 53
4. COMPLETE FILM PACKET PULLS THROUGH 00ceceeeeeeeeeceeceeceeeseeeeees 88 NEGATIVE CAP HANGING UP IN ROLLER AREA rnnr rarrnnrnnn 88 POTENS 88 UNEVEN SPREADS NE 89 83 Troubleshooting CAMERA Polaroid MP4 MP4 Plus Pictures out of focus Shutter will not open or open but will not close for viewing or picture taking 1 Filmholder not properly seated 2 Camera head not parallel with baseboard 3 Lens not tightened completely in shutter 1 Press focus level on shutter in wrong position 2 Automatic pre view arm not properly engaged by film holder fixed camera head 3 Pre view shutter cable improperly adjusted 4 Defective 26 inch pre view shutter cable 5 Lock screw on 10 inch shutter cable too tight 6 Defective 10 inch shutter cable 7 Defective shutter 8 Defective automatic pre view actuating mechanism 84 1 Seat film holder properly instruct customer 2 If camera was used in any position other than vertical make sure it was returned to vertical alignment slot and locking arm was locked If the camera is of the rotatable column type make sure the column locking arm is locked 3 Tighten lens 1 Position press focus lever to front 2 Reseat film holder on holder adapter making sure it engages pre view actuating arm 3a Adjust cable at attachment point to automatic pre view mechanism until approximately 1 8 inch clearance exists between c
5. Operation Polaroid MP4 MP4 Plus Figure 3 15 Shutter Lens Indicator 9 Make the exposure Gently press the plunger on the cable release figure 3 16 a Te te J VW pa 1 6 Taking the Picture P pg 5 el Figure D PROCESSING THE FILM CAUTION If film holder is at same height as lights turn lights off before pulling film tabs to prevent burns and fogging film 1 Pull the white tab all the way straight out of the film holder figure 3 17 A large yellow tab will appear If not see the paragraph No Yellow Tab 63 Operation Polaroid MP4 MP4 Plus AEE ee Figure 3 17 Pull White Tab 2 Grip the yellow tab firmly and pull it straight at moderate speed all the way out of the holder figure 3 18 Figure 3 18 Pull Yellow Tab 3 Press the START button on the film processing timer figure 3 19 64 Operation Polaroid MP4 MP4 Plus WEE Figure 3 19 Start Tim 4 At the end of the processing time separate the print from the negative starting at the end nearest the yellow tab figure 3 20 Information on the handling of prints and negatives is in the film instructions CAUTION The Polaroid instant film process uses a caustic paste Avoid contact with skin eyes and mouth Keep away from children and animals If you get some paste on your skin wipe it off immediately and wash with water to avoid an alkali burn If eye or mouth contact occurs quickly wash the area wit
6. Remove the camera head from the carriage and remove the column from the baseboard if an XLR model On standard model remove the camera head and tip the column down to horizontal to gain access to the harness 2 Remove the 12 screws securing the switch and electrical outlet boxes to the baseboard four from each box 3 Remove the harness from the baseboard b Installation 1 Position the new harness on the baseboard and secure its outlet boxes with the 12 screws 2 If XLR model replace the column on the baseboard and the camera head on the carriage If standard model tip the column back up to vertical and replace the camera head 92 Repair and Adjustments Polaroid MP4 MP4 Plus 2 Replacement of Illuminating Lamp Assemblies NOTE Because of the time required and resulting cost individual lamp sockets and or cords should not be replaced If a socket cord is defective the entire assembly should be replaced a Removal 1 Disconnect the lamp power cord from its baseboard outlet 2 Loosen the knurled knob on the top of the lamp reflector and slide the assembly off the support arm b Installation To install the new lamp assembly reverse steps 1 and 2 above 3 Replacement of Light Arms a Removal 1 Remove the lamp assemblies and cross bar from the light arm and lower the light arm to table top level 2 With an Allen wrench loosen the lock screw holding the light arm bolt NOTE The lock screw is loca
7. as you clean and inspect them Never scrape the rollers with anything metallic nor with your fingernail and never attempt to disassemble the rollers Also clean the film tab slot figure 3 26 then replace the roller assembly 6 Operation Polaroid MP4 MP4 Plus Figure 3 26 Cleaning the Tab Slot F LENS SELECTION Each MP 4 Plus lens is designed for reproductions within a specific range The following chart shows the approximate ranges Lens Minimum Maximum 135mm 10 1 2X 105mm 20 1 5X 75mm 1 5X 3X 50mm 1 5X 5X 35mm 5X 7 5X 17mm 10X 20X Use one or two macro extensions for additional magnification 68 Operation Polaroid MP4 MP4 Plus G SIZING AND FOCUSING General Rule To increase the size of the image on the ground glass lower the camera and lengthen the bellows figure 3 27 To decrease the size of the image raise the camera and shorten the bellows figure 3 28 Figure 3 27 Lower Camera and Lengthen Bellows Figure 3 28 Raise Camera and Shorten Bellows 69 Operation Polaroid MP4 MP4 Plus Reductions First adjust the camera height to get the approximate image size required Then adjust the bellows for sharp focus Magnifications First adjust the bellows to get the approximate image size required Then adjust the camera height to attain sharp focus Camera Column Scale When the column scale is read at the point shown in figure 3 29 it represents the film plane to baseboard d
8. clean see the paragraph on Cleaning the Developer Rollers D Hold the film pack by the edges not in the center Insert he pack at an angle then push it down into position figure 3 1 c Check that the white tabs are free not caught between the pack and film holder See figure 3 2 Figure 3 1 Inserting Film Pack d Close and latch the door with the end of the black tab sticking out of the slot Do not pull the black tab at this time e Remove the dark slide from the film holder figure 3 3 then insert the holder into the camera head DD Operation Polaroid MP4 MP4 Plus pao canta eas ala E Jman a Ce lte ae ee eee E ee A DANN e Ae polere Figure 3 2 Checking Tabs Figure 3 3 Removing Dark Slide 2 Inserting the Film Holder 44 48 Film Holder Slide the holder all the way into the right side of the camera head figure 3 4 Be sure that the two locking pins a on the holder engage the springs on the camera head Figure 3 4 Inserting 44 48 Film Holder 56 Operation Polaroid MP4 MP4 Plus Pull the black tab all the way straight out of the holder figure 3 5 A small white tab should appear If it does not see the No White Tab paragraph Figure 3 5 Pull Out Black Tab Model 405 Film Holder Load the film in the usual manner but do not pull the black tab until the holder is inserted into the camera Remove the dark slide Model 550 Film Holder Load the film in the usual man
9. four screws to secure it to the slide assembly 118 Repair and Adjustments Polaroid MP4 MP4 Plus 7 Complete the Adjustment of Sliding Head Camera Back Light Leak Adjustment and Adjustment of Pre View Shutter Cable procedures which follow c Adjustment of Sliding Head Camera Back 1 Install the sliding head assembly on a macro extension unit which in turn is secured on a work bench 2 Place the rubber tip of force gauge 11616 against the center of the right hand camera back subassembly as shown in figure 5 17 3 Push the gauge to the left while observing the pressure readout on the meter The reading must be between 3 and 7 pounds 4 If the reading is 7 or more tighten the four adjustment screws which control the pressure required to move the camera back on the slide 119 Repair and Adjustments Polaroid MP4 MP4 Plus S F 3 VW a a z E S IL o 5 SN i E 3 E e F RK E Mz a oz Figure 5 16 Sliding Head Camera Back 120 Repair and Adjustments Polaroid MP4 MP4 Plus POHL Sack 4115618 Figure 5 17 Measuring Sliding Head Force Pressure NOTE These screws are located on the left end of both slides Tighten the two screws at the ends of the slides first Then apply a slight downward pressure on the extreme left end of the mounting plate and tighten the other two screws securely 5 Now place the gauge against the left side of the camera bac
10. of Focus Scale 4 Secure the bars to the bottom plate using two Phillips head screws removed earlier 5 Replacement of Upper Slide Bar Figure 5 12 a Removal 111 Repair and Adjustments Polaroid MP4 MP4 Plus 1 Remove the setscrews from the upper slide bar Remove the screws completely rather than just loosening them because the vibrations resulting from the next step might cause them to be lost 2 Using a nylon hammer gently tap the bar at the two points shown to drive the upper bar free of the vertical bars b Installation 1 Align the upper slide bar over the vertical bars and gently tap it down in place using a nylon hammer SETSCHEWS EN TAP GENTLY HERE Figure 5 12 Removal of Upper Slide Bar 2 Secure the slide bar to the vertical bars using the two setscrews removed earlier E FIXED HEAD CAMERA BACK ASSEMBLY 1 Disassembly Reassembly of Fixed Head Camera Back a Disassembly 1 Loosen the hex nuts on the pre view cable figure 5 13 and release cable from the camera back housing 2 Using a sharp knife lift one edge of the foam light seal inside the back adapter and peel off the remainder of the seal removing it from the adapter Remove all old glue 3 Remove the nine slotted head screws exposed under the light seal This separates the camera back from the back adapter 112 Repair and Adjustments Polaroid MP4 MP4 Plus 4 Examine the adapter gasket Remove it if it is damaged Remove
11. purpose use aerial image type with clear center circle and calibrated type inches and centimeters for measuring repro size 17 Description Polaroid MP4 MP4 Plus Figure 1 11 Standard aerial image amp calibrated ground glass focusing screens FILM HOLDERS shown Figure 1 12 include types for Polaroid instant 4x5 sheet film Model 545 4x5 pack films Model 550 and 3 1 4x4 1 4 pack films Models 4448 and 405 Several wet process roll and sheet film holders may also be used with MP 4 and MP4 Systems Figure 1 12 Polaroid instant pack and sheet film holders SHUTTER KIT Figure 1 13 includes a self cocking lensless shutter with 1 sec to 125th sec speeds B and X sync cable release and microscope adapter for microphotography 18 Description Polaroid MP4 MP4 Plus Figure 1 14 135mm to 17mm lenses LENSES Figure 1 14 mount on the Shutter described above and include focal lengths of 135 1015 75 50 35 and 17mm All are f 4 5 to 1 32 except 17mm which is f 4 to f 22 FILTER KIT Figure 1 15 includes gelatin filters for balancing tungsten and quartz halogen lighting to Polaroid Polacolor films filter holder two trays filter frame and complete instructions Also permits use of other filters 19 Description Polaroid MP4 MP4 Plus Figure 1 15 Filter Kit for Polacolor films MACRO EXTENSION Figure 1 16 mounts between bellows and camera head Permits magnifications up to about 27X with 17mm le
12. ring on the recess of the bolt figure 5 4 Install a cover over the bolt hole in the casting Apply glue to its edges to secure it to the casting 9 Install the bellows assembly locking lever on the top right side of the carriage Insert a bolt through the body mounting frame from the left side Attach a washer and the lever handle to the bolt and tighten by turning the handle clockwise 10 Install the carriage assembly locking knob at the bottom of the unit by screwing the knob handle clockwise into the casting 105 Repair and Adjustments Polaroid MP4 MP4 Plus CAUTION There are four nylon support guides in the carriage item 32 figure 5 2 section 5 These are used to prevent side to side movement of the assembly as it travels up and down the column The supports are secured by set screws and must NOT be touched except in the unusual case of undesired lateral motion D CAMERA HEAD AND BELLOWS ASSEMBLY 1 Replacement of the Bellows a Removal 1 Using a Phillips head screwdriver remove the four screws holding the upper part of the bellows to the film holder adapter mount 2 Using a Phillips head screwdriver remove the four screws holding the lower part of the bellows to the shutter mount NOTE Early MP 4 models were manufactured with the bellows glued to the upper and lower mounts To prevent excessive paint damage scribe the point where the bellows joins the mounts with an X acto knife 3 Remove the bello
13. the light arm lock screw 7 Rotate the locking arm to the locked position and check to make sure the light arm will not move when locked B COLUMN ASSEMBLY 1 Replacement of Columns CAUTION When removing a defective column be sure to support it properly to prevent its accidental falling a Removal Standard Model 1 Remove the bellows assembly from the carriage 2 Remove the carriage assembly from the column see paragraph C1 3 Carefully tilt the baseboard and column assembly to gain access to the hardware under the baseboard 4 While clamping the nuts under the baseboard unscrew four Phillips head screws from the column mounting plate on top of the baseboard Remove the column XLR Model 1 Remove the bellows assembly from the carriage 2 Remove the carriage assembly from the column see paragraph 95 Repair and Adjustments Polaroid MP4 MP4 Plus 3 Loosen the locking lever on the column mount and lift the column off the post 4 Carefully tilt the baseboard and column assembly to gain access to the hardware under the baseboard 5 While clamping the nuts under the baseboard unscrew four Phillips head screws from the column mounting plate on top of the baseboard Remove the column b Installation Standard Model 1 Position the column on the baseboard with the height scale facing forward 2 Align the mounting holes on the column with those on the baseboard and secure the two units usi
14. the piano hinge until the pin has approximately 1 4 inch clearance at each end 3 Position hinge pin retainers at each end of the hinge and force them in until they are fully seated 2 Replacement of Pack Film Holder Exit Door a Removal 1 Open the film pack loading door 2 Using exit door remover inserter tool 11213 pry out friction held door pivot pins figure 5 22 and remove the door CAUTION Use care to avoid losing the small pins b Installation 1 Position the exit door on the film holder and insert the right hand pin finger tight 2 Insert the left hand pin through the door return spring with the short leg of the spring positioned to contact the inside lip of the exit door 3 Insert the pin and spring into the door finger tight 4 Using tweezers position the long leg of the spring against the inside of the exit door 5 Using the exit door remover inserter tool 11213 press the pivot pins until fully sealed 6 Close the film loading door 3 Replacement of Pack Film Holder Dark Slide Light Seal a Removal 1 Remove the dark slide 130 Repair and Adjustments Polaroid MP4 MP4 Plus Figure 5 22 Removing Exit Door Pivot Pins 2 Using a Phillips screwdriver remove the six screws securing the film holder to the film holder base 3 Remove the base from the film holder 4 Using a knife lift one end of the felt seal attached to the base and peel it off 5 Remove all old glue
15. the recommended shutter soeed Example 11 indicates a shutter speed of 1 8 second If your total has a 1 2 in it use the lower full number Thus if the total is 12 1 2 use the figure 12 in table D 76 Operation Polaroid MP4 MP4 Plus TABLE A Film Type and Film Speed ASA equivalent Film Types Speed e 47 57 107 13000 1 BL 0 800 3 F OO 4A d 200 5 a 51 tungsten lighting 12 6 _146 L tungsten lighting 100 6 S 55 Positive Negative 50 Zo Polacolor Types 48 58 108 24 8 with 80B amp CC20B filters hmmm with 80B CC40B filters 12 9 TABLE B Reproduction Scale Reduction Same size Magnification 1 10 to 1 5 1 4 to 1 2 1 1 1 5x 2X 3X 4x Bx 6x 1X 8X 9x 10x GH am NO Mi NO YN OH 0 0101A4600Nn h gt AN TABLE C Lens Aperture f 4 5 f 5 6 f 8 f 11 f 16 f 22 f 32 2 OD 010 P GO When setting the lens between two f numbers use half numbers Thus for f 11 f 16 use 3 1 2 17 Operation Polaroid MP4 MP4 Plus TABLE D Shutter Speeds Total from Shutter A B amp C speed exposure time 7 1 125 sec 8 1 60 9 1 30 10 1 15 11 1 8 12 1 4 13 1 2 14 1 sec 15 2 16 6 17 15 18 40 19 1 1 2 min 20 4 min Compensation for reciprocity failure Normally when an exposure meter or exposure chart indicates an exposure of about 4 seconds or longer the exposure time needed in practice will be longer due to a l
16. to Shutter c Look at the shutter from above the shutter blades should be fully closed figure 2 25 Now push the head all the way into the viewing position The shutter blades should be fully open figure 2 26 l they are not adjust the plunger end q of the release until the shutter functions as described 36 Installation Polaroid MP4 MP4 Plus Figure 2 26 Shutter Fully Open d Fit the cable releases into the clamps figure 2 27 This will prevent damage to the shutter if the cable is accidentally pulled Figure 2 27 Attaching Cables to Clamps 3 Installation Polaroid MP4 MP4 Plus 3 Attach Lens to Shutter a Carefully screw the lens into the shutter figure 2 28 4 Attach the Ground Glass a One end of the ground glass frame has two small protrusions r figure 2 29 near its base Hold the frame in the left hand with the protrusions pointing to the left Figure 2 29 Orienting Ground Glass b Slide the ground glass frame into the camera head from the left figure 2 30 Slide it all the way in so that the two retainer pins on the frame engage securely in the two spring loops on the camera head 38 Installation Polaroid MP4 MP4 Plus 5 Attach the Reflex Viewer a The pins on the sides of the viewer fit into the slots on the ground glass frame figure 2 31 Figure 2 31 Attaching Reflex Viewer _ 6 Attach the Film Holder Adapter a If using a Polaroid Model 545 550 or
17. within the rails and make sure that no air bubbles form as you work up the column 4 Trim off any excess scale that extends beyond the top of the column 5 Replace the column on the baseboard and tighten the column locking arm 6 Replace the carriage on the main column 7 Replace the balancer assembly 8 Replace the bellows assembly on the carriage 98 Repair and Adjustments Polaroid MP4 MP4 Plus C CARRIAGE ASSEMBLY 1 Replacement of Carriage Assembly a Removal 1 Remove the bellows assembly from the carriage 2 Loosen the carriage locking arm and raise the carriage to the top of the column until it butts against the balancer assembly Lock the carriage 3 Unscrew the upper left carriage locking pin which holds the balancer spring to the carriage 4 Remove the balancer assembly from the top of the column 5 Unlock the carriage and slide it up and completely off the column It may be necessary to rotate the height adjustment knob to get the carriage off the column b Installation 1 Position the carriage assembly over the column and slide it about halfway down the column Lock it there 2 Set the balancer assembly firmly in place on top of the column 3 Unlock the carriage and slide it up the column to butt against the balancer Lock it there 4 Capture the left balancer spring in the carriage using the left locking pin 5 Lower the carriage to a comfortable working position and install the b
18. 1 Installation Polaroid MP4 MP4 Plus d Attach the cross bars Slide the cross bars into the top of each lamp arm figure 2 37 Rotate the bar until the groove w points down and the second groove x is aligned with the fastening screw Tighten the fastening screw to lock the bar in place hy a G Sez Figure 2 37 Tightening Screw on Lamp Arm and Groove on Cross Bar e Angle the lamp arms Angle them as indicated by the two marks and lock them position with the lever This puts the lamps in the correct position for most general copying work For special lighting requirements the lamp arms may be angled in any way desired The lamp arms are designed for use with various types of lighting equipment see the appropriate paragraphs in this section for details on locating the lamps on the cross bars E ATTACH THE TIMER The timer may be attached to any convenient location such as the front of the sliding head figure 2 38 Simply remove the paper backing from the adhesive strip on the back of the timer and press it into position 42 Installation Polaroid MP4 MP4 Plus Labele De A Ehee RK AA Regen E ui ne NEE Figure 2 38 Attaching Timer to Sliding Head The timer is powered by two batteries If the timer stops working or if the display or tones fade replace the batteries To replace the batteries slide the door open figure 2 39 and insert the new batteries in the orientation indic
19. 4 Move press focus lever to proper position 1 Adjust floodlight arms and floodlights to get more equal illumination over entire baseboard 1 Position dark slide with approximately 1 4 inch of red stripe exposed 2 Push head completely to left 3 Reseat film holder 1 Plug in power cord 2 Connect lights 3 Replace electrical harness 4 Replace electrical harness 5 Replace electrical harness 6 Reset circuit breaker 1 Check by plugging lamp cord into alternate power source If lamps light this is an indication of a faulty electrical harness in the baseboard which must then be replaced 1 Replace lamp 2 Replace electrical harness 3 Replace cord 4 Replace lamp socket Troubleshooting PACK FILM BACK Polaroid MP4 MP4 Plus Bad spreads Film tearing 1 Rollers dirty 2 Rollers nicked or scratched 3 Exit door area dirty 4 Tab strip bar broken or missing 5 Roller bushings dirty 6 Roller bushings missing 7 Roller supports bent 8 Spread roll springs bent or missing 9 Edge control bar springs bent or missing 10 Edge control bar bent 1 Exit door bent not opening properly 2 Edge control bar assembly not free 3 Edge control bar bent 4 Slide block defective 5 Tab strip bar broken 8 1 Clean rollers instruct customer 2 3 6 T 8 Replace rollers Clean exit door area Replace tab strip bar Clean bushing are
20. 4 Replacement of the Focus Scale Figure 5 11 a Removal 1 Locate and remove the Phillips head screws that secure the vertical slider bar and adjusting bar to the bottom plate These screws pass through the bottom plate into the bars On some units these screws may be glued in place requiring extra effort to remove them 2 Grasp the upper slide bar and pull the bar assembly free of the bellows frame The bushings on the bars should be released at this point 3 Pry the focus scale from the groove in the slider bar NOTE The old scale cannot be reused so don t spend time trying to salvage it 4 Thoroughly clean the slider bar removing all glue from the groove 110 Repair and Adjustments Polaroid MP4 MP4 Plus b Installation 1 Apply Elmer s Glue to the groove in the slider bar and position the new focus scale in place Carefully align the bottom of the scale with the bottom of the slider bar 2 Press the scale firmly into the groove and wipe off any excess glue Allow the glue to dry before continuing to the next step 2 Press the scale firmly into the groove and wipe off any excess glue Allow the glue to dry before continuing to the next step 3 Install the slide bar assembly set the two bushings into the opening on top of the bellows frame Slide the bars through the bushings Install the lower bushings on the adjusting bar _ ADJUSTING A BAR BLISHINGS BELL Om FRAME Figure 5 11 Replacement
21. 405 Film Holder insert the U shaped adapter Orient the adapter as shown figure 2 32 Slide it all the way into the head so the pins s fit under the springs t WARNING When using the sliding camera head with heavy accessories such as one or two macro extensions always lock the vertical carriage on the column as soon as you have raised or lowered the camera If you do not the camera may begin to slide down the column because of the extra weight 39 Installation Polaroid MP4 MP4 Plus Figure 2 32 U Shaped Adapter Pins and Springs D ATTACH THE LAMP ARMS 7 Lamp Arms The two lamp arms fasten to the left and right sides of the baseboard near its rear edge a Orient the lamp arms so the screw faces up figure 2 33 and the angel indicator faces the front of the baseboard figure 2 34 Figure 2 33 Lamp Arm Orientation Screw at Top 40 Installation Polaroid MP4 MP4 Plus kr i Figure 2 34 Lamp Arm Orientation Angle Indicators Facing Front of Baseboard b Insert the screws into the top two holes in the metal plate then tighten firmly figure 2 35 ER We at eege AT DTN KE ee EE S R Kat Ca A e Nee Zeie SE Figure 2 35 Tightening Lamp Arm Screws c Orient the horizontal cross bars as shown in figure 2 36 With the MP 4 Plus standard model note that distance u is slightly shorter than distance v XLR Standard Figure 2 36 Cross Bar Orientation 4
22. 41 Cross Bar EE e EE 41 Tightening Screw on Lamp Arm and Groove on Cross Bar 42 Attaching Timer to Sliding Head 43 Timer Batteries in Compartment nononnnnanennnninnnnnennerennennrnrennrennrnnne 43 Tungsten Lighting Gvsiem 44 PEER 44 Aligning Pointer with Groove ocoococccccccncconccconononononcnnonnnnnonononcnanononnons 45 Adiusting Am AES vaar 45 Dressing Electric COTAS E 45 Baseboard ei EE 46 TWO LAMPS ON Crossbar rarrernrnernannrvarnrnarnennarnannrnernannnnannenerneneenenner 47 Halogen Lighting System cccccceceececeeceececeeeeceeseeseeeeeeeeeeeeseeeesaees 47 PACMAG La Piura ainda 48 SIT ite 0 EE leds 48 Aligning LAMP AIMS orar an 48 DRESSING DOS e en ea tea 49 Baseboard Switch and Outlet 49 ON OFF Sulen on Montar 49 Polaroid MP4 MP4 Plus Service Manual Polaroid MP4 MP4 Plus Figure 2 54 Normal Lamp Ange 50 Figure 2 55 Close Up Lamp Angle coococcococcocconccnononnnconanononnononnnnnnnnnnnnnnnonnncnnanos 51 Figure 2 56 REMOVING Housmmg 51 FIgUur le leie LAMD viii AA A A udesxeeades 52 Figure 2 58 Replacing the Fuse ocoocococcccoccccocononccononononnononnnnononnnnnnnonnnnnnennnnnnenos 52 Figure 2 59 Preparing Cord for New Plug arrarnarnernornernennnnnnnrnnnernernernennannnnnannsnnen 53 Figure 2 60 Hospital Plug Assembly occococccconccconococoonconononcnnoconnnnnncnnononnnonnonnnnns 53 Figure 3 1 Inserting Film Pack ccccceccecsceeseece
23. 46 15 Description Polaroid MP4 MP4 Plus C SYSTEM OPTIONS AND ACCESSORIES The following items may be used with any MP 4 or MP4 System unless noted otherwise Further details can be found in Polaroid sales literature and operator instruction manuals SLIDING CAMERA HEAD Figure 1 7 allows previewing and focusing without removing film holder see Figure 1 3 Sliding the head from the previewing to the picture taking position automatically closes the shutter Figure 1 7 Sliding Camera Head Model 4441 FIXED CAMERA HEAD not illustrated holds ground glass screen and film holder at top of camera body and bellows assembly Film holder must be removed to view and focus the subject 8X10 CAMERA Figure 1 8 attaches to column in place of standard MP 4 camera accepts Polaroid instance 8x10 films 16 Description Polaroid MP4 MP4 Plus 8x10 FILM HOLDER amp FILM PROCESSOR Figure 1 9 for exposing and conveniently processing Polaroid 8x10 films Holder also usable with other 8x10 cameras Figure 1 9 Polaroid 8x10 Film Holder amp Film Processor REFLEX VIEWER Figure 1 10 attaches to ground glass and directs image forward excluding ambient light for easier focusing and viewing Figure 1 10 Reflex Viewer GROUND GLASS FOCUSING SCREENS Figure 1 11 are for use with Polaroid and many wet process film holders They are scribed for Polaroid 4x5 sheet and 3 1 4x4 1 4 pack films Three types standard for general
24. 5 9 to the bellows frame and remove the mounting plate b Installation 1 Lubricate the pressure leaf spring in the mounting plate with Sow Corning D 55 Silicone Lubricant 2 Position the mounting plate on the bellows frame making certain that the click pin is positioned toward the top of the plate DO NOT TURN THE PLATE UPSIDE DOWN Hand tighten the screws holding the assemblies together 3 Secure the plate to the bellows frame by tightening the four corner screws first and then by tightening the two center screws 107 Repair and Adjustments Polaroid MP4 MP4 Plus 3 Replacement of Focus Drive a Removal 1 Remove the bellows adjustment assembly from the carriage 2 Remove the bellows assembly mounting plate from the bellows frame Figure 5 9 Bellows Mounting Plate Assembly NOTE Parts installed inside the mounting plate ie focus drive shaft pressure plate and positioning detent are now accessible for replacement if necessary 3 Lift the focus drive shaft see figure 5 10 and remove the end and intermediate shaft bushings NOTE The end bushing outer surface is round whereas the intermediate bushing has a flat surface on one side Each is formed for proper positioning in the bellows frame 4 Slide the drive shaft assembly out of the bellows frame 108 Repair and Adjustments Polaroid MP4 MP4 Plus INTERAC HATT HEL T GHIR Figure 5 10 Replacing Focus Drive Parts 5 If knob or knob end
25. EMENT OF COLUMN SCALE XLR MODEL 0oooooccncconccncnnnnonnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnss 98 C CARRIAGE ASSEMBLY EENEG 99 1 REPLACEMENT OF CARRIAGE ASSEMBLY ooocccccocconconnonnonnnnnnnnnnn nn nanna nnknu nnana nr nn nn nn nr nn nnnnnnnnnnna 99 2 DISASSEMBLY REASSEMBLY CARRIAGE ASSEMBLY ececceccecececcccccceccececceeuneacenecutateneuneaneass 99 D CAMERA HEAD AND BELLOWS ASSEMBLY nnvnnnnnvnnvnvnnvnvvnvnnnnvnvnnvnnvnnvnvnnnnnennnnnnnunnnn 106 EENEG ESCHER aoe gant EE 106 2 REPLACEMENT OF THE MOUNTING PLATE nn nn nn nn ron nnnnnnnnnannnnnns 107 3 REPLACEMENT OF FOCUS DAVE ua ia das 108 4 REPLACEMENT OF THE FOCUS SCALE FIGURE BI 110 5 REPLACEMENT OF UPPER SLIDE BAR FGuUpEbi 111 E FIXED HEAD CAMERA BACK ASSEMBL NV NENNEN ENEE NENNEN ENNEN ENNEN 112 1 DISASSEMBLY REASSEMBLY OF FIXED HEAD CAMERA BACK 112 2 FIXED HEAD CAMERA BACK TORSION BAR REPLACEMENT ccececcecceccccacceccaeacececceeaneacenteneanes 114 3 FIXED HEAD CAMERA BACK FELT LIGHT SEAL REPLACEMENT FIGURE BD 1Ai 115 4 PRE VIEW CABLE ADJUSTMENT FIGURE BOB 116 F SLIDING HEAD CAMERA BACK ASSEMBLY i vnnvnnvnnvnnvnavnavnnnvanvannnvnnvnnvnnnnnennvnnvnnvnnvvnnnee 117 1 DISASSEMBLY REASSEMBLY OF SLIDING HEAD CAMERA BACK FIGURE 5 16 0c0sceeeeeeeeeeeees 117 G REFLEX VIEWER ASGEMRL NV ek KKK KENNEN KEEN KEN ENNEN NENNEN ENNEN ENN ENNEN KN EN EN ENKEN ENN 123 1 LENS AND MIRROR REPLACEMENT avsnvanvnnnnnnnnvnnvnnnrnnsnrnrs
26. ER Figure 1 21 allows convenient accurate timing of film development Beeps when selected preset time has elapsed Battery operated three digit adhesive backing for attaching to camera head or any convenient location Supplied with MP4 Systems and also available as an accessory 22 Description Polaroid MP4 MP4 Plus Figure 1 21 Film Processing Timer CONDENSER ENLARGING HEAD not shown replaces camera head for use of the System as an enlarger Accepts negative carriers from 35mm to 4x5 UNIVERSAL CAMERA MOUNT Figure 1 22 allows the MP 4 4 system to be converted to a 35mm copying or slidemaking system Attaches to System column in place of camera head Figure 1 22 Universal Camera Mount for other cameras TRIPOD ADAPTER not shown permits using the MP 4 4 Camera on a tripod or studio stand as a studio camera for portraits large scale copying and other uses 23 Installation Polaroid MP4 MP4 Plus SECTION 2 INSTALLATION CONTENTS INTRODUCTION ae 25 A ATTACH COLUMN TO BASEBOARD ee ENNEN ENER KEN KENE KEEN KEEN E EN KEN KEN KK uk 25 PO MODELE caia E Bee 25 STANDARD MODE EE 26 B ASSEMBLE THE CAMERA aneranannnvannnnennnnnnnvnnnnnnnnnnsnvennvannennssnvannvsnennnnnnnnnnsnnennnsnnnnmnnnnen 27 1 ATTACH VERTICAL CARRIAGE TO COLUMN nn nnnn nn nr rn ununun rn nr nn rn nnnnnnnaso 27 2 ATTACH SPRING HOUSING AND COUNTERWEIGHT SPRING ecceeceecececceccececcececaeeaceueeenueeneeaneans 29 3 ATTACH CAMERA B
27. Locking ever 73 Figure 3 33 Weights on Baselboard eee eeseeeeeeeeeseeseeeeseeseeeeeeaeenenes 73 Figure 3 34 Locking Knob and Gcrew 74 Figure 3 35 Removing Camera Boch 74 Figure 5 1 Aligning Light Arm and Locking Handle nanananannnnnnannnnnannnnnnnnnnnnnnne 94 Figure 5 2 Carriage Aesembhy 100 Figure 5 3 Removing the Drive Holler 101 Figure 5 4 Removing the Lower Guide Holler 102 Figure 5 5 Removing Upper Guide Roller Cover Plate 102 Figure 5 6 Removing Upper Guide Rollers oococcocconocconcccconoccononnononnnncnnonos 103 Figure 5 7 Correct Position of Drive Holler 104 Figure 5 8 Assembling Upper Guide Roller on CGaage 105 Figure 5 9 Bellows Mounting Plate Assembly occococccconccconococconnonoconcnnoncnnonononos 108 Figure 5 10 Replacing Focus Drive Parts cccceceececeeeeceeeeeeeeeseeeeeeeeeaeseeaenes 109 Service Manual Polaroid MP4 MP4 Plus Figure 5 11 Replacement of Focus Gcale 111 Figure 5 12 Removal of Upper Slide Har 112 Figure 5 13 Disassembly of Fixed Head Camera Back 114 Figure 5 14 Replace Felt Light Seals ooccoccoccocconconconnonconoonnccnncnanenncanonnnnnnns 115 Figure 5 15 Pre View Cable Adjustment occoccoccocccccnccncoconcnnnconnnnnnnnnnnncnnnnnnnnns 116 Figure 5 16 Sliding Head Camera Back 120 Figure 5 17 Measuring Sliding Head Force breseure 121 Figure 5 18 Adjusting the Pre View Shutter Cable Sliding Camera Head
28. MP4 MP4 Plus 8 Install the pre view cable on the camera back straddling the housing slot with the two cable hex nuts Tighten hex nuts finger tight and perform Pre View Cable Adjustment below 2 Fixed Head Camera Back Torsion Bar Replacement a Removal 1 Remove the two Phillips head screws holding the torsion plate figure 5 13 and remove the torsion plate 2 Slide the actuation arm about 1 2 inch to the left to permit release of upper and lower torsion bars Remove the torsion bars Figure 5 13 Disassembly of Fixed Head Camera Back 114 Repair and Adjustments Polaroid MP4 MP4 Plus b Installation 1 Install the lower torsion bar onto the camera back by first pushing the actuation arm to the left then sliding the bar into position from left to right 2 Place the upper torsion bar in position over the lower bar and firmly press it down 3 Orient the torsion plate over the two bars and firmly push it against the torsion bars to compress them While pushing align the mounting holes int he plate with the camera back holes Secure the plate with two Phillips head screws tightening them alternately to apply even pressure to the bars 3 Fixed Head Camera Back Felt Light Seal Replacement figure 5 14 a Removal 1 Remove the pre view shutter cable NOTE To gain access to the upper and end felt strips in the camera back slide the pre view shutter cable actuator in the direction shown and wedge it in th
29. NOTE When removing any of the light seals be certain that all old glue is removed from metal or plastic parts When installing new light seals use glue sparingly and wipe up any excess Position the new seals int he same orientation as the ones removed b Reassembly NOTE Before assembly the parts inspect all plane surfaces of the sliding head to be certain that they are true and level If any distortion is noted replace the part 1 Assemble the camera backs according to the instructions in Disassembly Reassembly of Fixed Head Camera Back 2 Install the camera backs on the frame open end of torsion bars facing the outside using four retainer screws on each back Install a new light seal on the bottom of the frame to cover the screw heads Allow the glue to dry before continuing 3 Install the rear slide assembly on the frame using two screws and hex head nuts Note that the screws are inserted from inside the frame through the slide 4 Install the front slide assembly on the frame using two screws and hex head nuts Note that the screws are inserted from inside the frame through the slide 5 Assemble the slide carriage housing and the slide assembly as follows Slide the lower carriage housing onto the upper slide assembly from the left side Align the mounting holes on the sides of the two assemblies secure the assemblies using four screws and lock washers two on each side 6 Install the front panel using
30. ODY TO VERTICAL CARRIAGE cccccecccceccccccccccecuceccecuuecuneecueecutecunecuneesueeneeas 31 ea oe UF Hes Bd GAMER Ac o a od a dodo 32 C ASSEMBLE THE SLIDING CAMERA HEAD NNN NENNEN ENNEN NEEN ENNEN ENN 34 LAN 34 2 SLIDING THE CGAMERAHEGaAn cnn rra 35 SANTOS 38 4 ATTACH THE GROUND GASS ane adr 38 EAA ETHERNET 39 6 ATTACH THE FILM HOLDER ADAPTER occccocccncccnccncnnnnnnnnnnnnnno nono n nn nn nunana nn nen annann erreren 39 D ATTAGH THE LAMP ARMS tc idad 40 Fl JENIN EE 40 E ATTAGH THE TIMER EE 42 F TUNGSTEN LIGHTING SYSTEM seenavrnnvnnnennvnnnennvvarnnvvnnennnvnennnennsnnnvnnevnnnnnunnunnnnnnunnnnnnnn 44 LNR 44 G HALOGEN LIGHTING SYSTEM anrnnvnnnvnnnennvnnvvnnvnnnnnrnnnennrnnnennnvnnennnvnnennnunvnnnunnennnvnnnnnnnnnn 46 RE E ve 47 2 AEPEACING THE LAM RE Aa eee italia 51 SA REPLACING THE RENEE 52 H INSTALLING HOSPITAL PLUG en ENN NENNEN ENNEN ENNEN ENNEN ENEE ENNEN ENN 52 24 Installation Polaroid MP4 MP4 Plus INTRODUCTION This section contains instructions for assembling and installing an MP 4 Plus system The MP 4 Plus system should be assembled in the area where it will be used The system should be placed on a sturdy table or counter large enough to provide a work surface next to the baseboard A desk with locked storage space is ideal to prevent unauthorized use The system must be located near an appropriate electrical outlet Avoid placing the system near windows or other sources of bright lig
31. ON When there is no lens on the shutter the shutter blades are exposed and unprotected They are very delicate DO NOT TOUCH THEM 33 Installation Polaroid MP4 MP4 Plus oe tal Se 28 ON re k Figure 2 19 Attaching Shutter to Camera C ASSEMBLE THE SLIDING CAMERA HEAD 1 Assembly a Note the orientation of the sliding head The pins n figure 2 20 fit into corresponding holes in the camera body Figure 2 20 Sliding Head Orientation b Hook the camera head onto the left side of the camera body figure 2 21 then lower the head carefully Be sure that the pins engage in the holes on the camera body 34 Installation Polaroid MP4 MP4 Plus Figure 2 21 Hooking Sliding Head Onto Camera c Lock the head in place by pushing the latch 0 figure 2 22 toward the camera body kel d PIO Figure 2 22 Locking Head in Place 2 Sliding the Camera Head a Press the release button p figure 2 23 and slide the head all the way to the right for viewing and focusing Press the other release button to slide the head to the left for picture taking 35 Installation Polaroid MP4 MP4 Plus Figure 2 23 Sliding Head Release Buttons b Connect the long pre view cable release Do this with the camera head in the picture taking position pushed all the way to the right Screw the release into the pre view socket on the shutter figure 2 24 iii ANER ES Figure 2 24 Attaching Pre View Cable
32. Operation Polaroid MP4 MP4 Plus SECTION 3 OPERATION CONTENTS A FILM HOLDER USE Luse 55 1 LOADING THE MP 4 PLUS 44 48 EMOL DER 55 2 INSERTING THE FILM MOLDE R tada 56 B SET THE FILM PROCESSING TIMER sinne 57 C CAMERA OPERATION cie A a 58 D PROCESSING THE FILM WEE 63 E CLEAN THE DEVELOPER ROLLERS suveren 67 FLENS SELECTION eege 68 G SIZING AND FOCUSING csi s eana aa E SE aaia 69 H GUIDE TO EXPOSURE GONTROL va 71 l EXPOSURE GORREGTION SG 72 J ALR COLUMN ROTATION Luse 72 K CAMERA BODY REMOVAL o sd dee 73 L PICTURE FAULTS AND PROBABLE CAUSES ennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnern 74 M MP 4PLUS CARE AND MAINTENANCE ennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnr 75 EXPOSURE GUIDE FOR MP 4 CAMERA amp LIGHTS 8 POLAROID LAND FILMS 76 EXPOSURE GUIDE MP 4 PLUS TUNGSTEN LAMPS rennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnen 78 EXPOSURE GUIDE MP 4 PLUS HALOGEN LAMPS rrnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnnen 80 54 Operation Polaroid MP4 MP4 Plus A FILM HOLDER USE Instructions for using the Models 545 550 and 405 film holders are provided with the holders 1 Loading the MP 4 Plus 44 48 Film Holder Generally the film holder should be loaded before it is inserted into the camera head a Pull both sides of the latch to open the door the door does not open flat Before loading film check that the two steel rollers are
33. a Replace bushings Replace spider Replace spread roll springs 9 Replace edge control bar 10 Replace edge control bar 1 2 Replace exit door Clean area thoroughly Replace broken or missing parts 3 4 O Replace edge control bar Replace slide block Replace tab strip bar Troubleshooting 545 4 x 5 FILM HOLDER Polaroid MP4 MP4 Plus Envelope pulls through Negative cap does not release can t pull negative out Negative cap not holding complete film packet pulls through Negative cap hanging up in roller area Poor picture quality 1 Envelope stop latch binding 2 Envelope stop latch missing 3 Early style envelope stop latch 4 Linkage out of adjustment 5 Film packet inserted backwards 6 Film defective 1 Negative cap stop out of adjustment 2 Negative cap stop defective 3 Film defective 1 Negative cap stop binding 2 Linkage out of adjustment 3 Negative cap squeezed closed 4 Negative cap stop missing 1 Envelope stop latch defective 2 Envelope stop latch does not lie flat when unit is on process 3 Defective film 1 Dirty rollers 88 1 Check if latch or yoke is bent If either is defective replace it 2 Replace 3 Replace with new design latch 4 Adjust linkage 5 Instruct customer on proper loading techniques 6 Try new film 1 Adjust linkage 2 Replace 3 Try new film 1 Check if l
34. able end and mechanism with a film holder installed 3b Adjust flat end of pre view cable so the lug on the sliding camera head contacts it approximately 5 8 inch from end of slider right hand travel 4 Replace cable 5 Loosen lock screw 6 Replace cable 7 Repair or replace shutter 8 Repair or replace actuating assembly Troubleshooting Pictures are light struck in one area Shutter fails to open with film holder removed from adapter of fixed head or with slider too far left on sliding head 1 Improperly seated 4 x 5 film holder 2 Unlocked or improperly seated film holder adapter or sliding camera head 3 Improperly seated pack or roll film back 4 Damaged bellows 5 Failure to completely close dark slide before removing film holder from camera 6 Screws loose on film pack holder base 7 Film holder retainer springs weak or broken 8 Missing or deformed light seal gaskets 9 Dark slide removed from film back 10 Shutter not closing fully 11 Outside light reflecting off subject 12 Sliding head deformed 1 Shutter release and pre view shutter cables reversed on shutter 2 Defective or deformed pre view shutter cable or pre view actuating mechanism 3 Defective shutter 85 Polaroid MP4 MP4 Plus 1 Reseat film holder on film holder adapter instruct customer 2 Reseat and lock film holder adapter or sliding camera head 3 Reseat pack or roll fi
35. aeseeeesecetanseesass 19 Figure 1 15 Filter Kit for Polacolor NMS usaras ada 20 Figure 1 16 Macro Extension for 17MM Jens 20 Figure 1 17 Tungsten Lighting SySteM ccccccceececeeceeeececeeseeseceecueeeseeseeeeaeeees 21 Figure 1 18 Quartz Halogen Lighting Gwvstem 21 Figure 1919 Fiber Optic eler EE 22 Figure 1 20 Light Box ele E EE 22 Figure 1 21 Film Processing TimMer EEN 23 Figure 1 22 Universal Camera Mount for other Cameras 0 cseeeeeeeeeeeeeeeeeeees 23 Figure 2 1 ALA Column E 25 Service Manual Polaroid MP4 MP4 Plus Figure 2 2 Attaching XLR Column Base 26 Figure 2 3 Inserting Bolts in Standard Base rarrnnnnrnnrnnrnnrnnrnernnnnnavnrnnnvnnnnnnernenner 26 Figure 2 4 Tightening Nuts on Standard Base 27 Figure 2 5 Vertical Carriage Locking Lever 27 Figure 2 6 Vertical Carriage Rollers and Hale 28 Figure 2 7 Vertical Carriage Height Adjustment ever 28 Figure 2 8 Vertical Carriage Locking Lever 29 Figure 2 9 Orienting Counterweight Housing on Column 29 Figure 2 10 Removing SPNG PIN asta rra dd tees 30 Figure 2 11 Vertical Carriage at Top of Column 30 Figure 2 12 Inserting Pin through Spring Loop 31 Figure 2 13 Lowering and Locking Vertical Carriage nenennnnenenenereneenrenrrrrenenn 31 Figure 2 14 Locking Knob and Gcrew arrarrarnnrnnrnnrnnrnnrnnvnnnnnrnernnrnnrnannnnnnnnnnnnnnsnner 31 Figure 2 15 Orienting Camera Boch 32 Figure 2 16 Camera Body on Vert
36. all old glue WARNING Before completing the following step be aware that the spring under the actuation arm is heavily compressed It might snap out without warning Use care to prevent injury 5 Remove the roll pins holding the actuation arm to the camera back by grasping them firmly with a pair of diagonal cutters and prying them out Remove the actuation arm and actuation spring b Reassembly 1 Position the actuation arm next to the camera back and install the left rear roll pin to hold it in place 2 Set the compression spring in position under the actuation arm Place an awl or small screwdriver through the middle of the spring and butt the spring down against the vertical stop partition on the camera back 3 Compress the spring against the stop while withdrawing the awl or screwdriver and carefully force the compressed spring into its Space on the back assembly 4 Secure the compressed spring by pivoting the actuation arm down into position and inserting the second roll pin to hold it in place 5 Lay a thin film of glue on the adapter gasket and position it onto the camera back Allow the glue to dry before proceeding 6 Secure the back adapter to the camera back using the nine screws removed earlier 7 Place a light film of glue in the area of the nine screws and position a new foam light seal over the glue pressing it into place Let the glue dry before continuing 113 Repair and Adjustments Polaroid
37. at position 2 Pry the defective felt seal loose at one end with a sharp knife and then peel the seal away from the film holder frame Figure 5 14 Replace Felt Light Seals 3 Remove any old glue left on the frame 115 Repair and Adjustments Polaroid MP4 MP4 Plus b Installation 1 Apply a thin film of glue to the felt seal channel of the film holder adapter NOTE The upper and lower felt strips are identical but the end strip is shorter 2 Select the proper strip and press it into place in the felt seal channel NOTE Let the glue air dry for a few minutes before inserting a film holder onto the film holder adapter 3 Install the pre view shutter and adjust it according to the Pre View Cable Adjustment procedure 4 Pre View Cable Adjustment figure 5 15 a Install a film holder in position on the camera back ACTUATION CABLE HEX NUTS A RA Ke e d _ i ps ew l _ ar bk i ET ar a lg T e b ch 7 Ze ee i T de E P 230 CLEARANCE Figure 5 15 Pre View Cable Adjustment b Turn the cable hex nuts up or down to obtain the 3 8 inch dimension shown in figure 5 15 When this dimension is obtained tighten the hex nuts finger tight c Remove the film holder and check to see if the shutter opens fully d Slide the actuation arm to the left simulating insertion of a film holder and check to see if the shutter closes fully 116 Repair and Adjustments Polaro
38. atch or yoke is bent If either is defective replace tt 2 Adjust linkage 3 Spread apart negative cap so it will catch 4 Replace stop 1 Straighten or replace the latch 2 Adjust linkage 3 Try new film 1 Clean rollers instruct customer Troubleshooting Uneven spreads 1 Eccentric cam defective 2 Spring loading rod worn 3 Customer depressing roller spring while processing 4 Roller spring defective 5 Roller s defective not concentric or missing bearings 6 Loading link reversed 7 Dirty rollers 89 Polaroid MP4 MP4 Plus 1 Replace 2 Replace 3 Instruct customer on proper processing instructions 4 Replace 5 Replace roller s 6 Position link correctly 7 Clean rollers instruct customer Repair and Adjustments Polaroid MP4 MP4 Plus SECTION 5 REPAIR AND ADJUSTMENTS CONTENTS INTRODUCTION ON 92 A LCIGHTING SYSTEM EE 92 1 REPLACEMENT OF MAIN ELECTRICAL HARNESS ccecceccececcececceccaceccneeueutentcnecueeeneaneneentneanenes 92 2 REPLACEMENT OF ILLUMINATING LAMP ASSEMBLIES cccecceccacccceccacececceccecceccecueeecnesnesueeaes 93 3 REPLACEMENT OF LIGHT ARMS 2ccccceccecceccccceccececcccceacecceccecuecueauecceccecesuesuencesestestenauscesees 93 B COLUMN ASSEMBLE EEN 95 1 FREPLAGEMENT OF COLUMNS eege ees Ee gees 95 2 REPLACEMENT OF COLUMN SCALE STANDARD MODEL uunannnnanannnnnnnnnnnnnnnnnnnrnrrunnrnnnnnnnnnnnnerrn 97 3 REPLAC
39. ated in the compartment NOTE After replacing the batteries press the SET and START buttons simultaneously to ensure proper functioning of the timer Figure 2 39 Timer Batteries in Compartment 43 Installation Polaroid MP4 MP4 Plus A i E a CS se dv XLR HE el 3 i AS sf e de dr e am Le Im Figure 2 40 Tungsten Lighting System F TUNGSTEN LIGHTING SYSTEM Generally the lamps are attached to the lamp arms figure 2 40 but they may also be used on separate light stands The mounting bracket on each lamp holder is threaded to accept a standard tripod screw The tungsten lighting system requires four 150 watt reflector flood lamps which may be purchased separately NEVER USE LAMPS OF A HIGHER WATTAGE THAN RECOMMENDED 1 Assembly a Loosen the knob on the lamp holder mount and slide the lamp into Its correct location on the cross bar figure 2 41 Figure 2 41 Attaching Lamp o b Tilt the lamp as needed so the pointer on the mount a figure 2 42 is aligned with the lower groove on the cross bar Then tighten the knob c Repeat steps a and b for the other three lamps 44 Installation Polaroid MP4 MP4 Plus Figure 2 42 Aligning Pointer with Groove d Loosen the locking level b figure 2 43 and adjust the angle of each arm so the indicators c are aligned This will place the lamps at the correct angle for most photography Figure 2 43 Adjusting Arm Angles e Run the elec
40. board Figure 3 33 Weights on Baseboard K CAMERA BODY REMOVAL You can remove the camera body and use another camera on the MP 4 Plus column such as the 8x10 camera or a 35mm camera using the 44 85 Universal Camera Mount These accessories are described in Section 1 To remove the camera body loosen the locking know i figure 3 34 until it is vertical Then loosen the retainer screw j by about three full rotations Pull off the camera body as shown in figure 3 35 13 Operation Polaroid MP4 MP4 Plus Before replacing the camera body be sure the locking knob and retainer screw are loosened Push the camera body all the way on tighten the retainer screw and then the locking knob Figure 3 35 Removing Camera Body L PICTURE FAULTS AND PROBABLE CAUSES Repeated evenly spaced spots Dirt on the steel developer rollers Missing corners or orange red marks along edges Caused by pulling the yellow tab out at an angle Oblong in print The white tab was not pulled all the way out When the yellow tab was pulled that white tab was pulled back into the film holder 74 Operation Polaroid MP4 MP4 Plus Many small white specks Caused by pulling the yellow tab out too fast This can also cause pink lines streaks or blotches on color prints Muddy looking print The print was not processed for a long enough time Underprocessed color prints may be brownish pink Broad streak or curtain shaped mark D
41. d 7 1 125 sec 8 1 60 9 1 30 10 1 15 11 1 8 12 1 4 13 1 2 14 1 sec 15 2 16 6 17 15 18 40 19 1 1 2 min 20 4 min Includes compensation for low light level reciprocity failure This compensation is an average for Polaroid instant films in general and thus a rough guide only Note that color films will require filtration in addition to a longer exposure EXPOSURE GUIDE MP 4 PLUS HALOGEN LAMPS Find the numbers that correspond to the speed of the film you are using Table A the reproduction scale Table B and the lens aperture Table C Add the numbers then find the total in Table D Next to this number is the suggested shutter speed 80 Operation Polaroid MP4 MP4 Plus Table A Film Speed ISQ3000 36 ISQ800 30 ISQ400 27 50200 249 150100 21 15080 20 15050 18 I5025 15 ISO3 6 ANDO OF och mb fg NO 1 With color films adjust the film speed to compensate for filter factors Table B Reproduction Scale 1 10 to 1 5 1 4 to 1 2 1 1 1 5X 2X E A N i I NO dv Ke ONWDOAAARWWD A ask N Measure the length of the original subject and its length on the ground glass to determine the reproduction scale Table C Lens aperture f 4 5 f 5 6 f 8 f 11 f 16 f 22 f 32 2 OD 01 P Ob 81 Operation Polaroid MP4 MP4 Plus When setting the lens between two f numbers use half numbers Thus for f 11 f 16 use 3 1 2 Table D Shutter s
42. dental pick position the protrusions on the flat ends of the diaphragm blades into the slots of the actuator This may require some trial and error 13 When all the blades are trapped move the selector ring from full open 4 5 to the smallest aperture to be sure the blades move freely 14 Insert the front lens and shellac it in place 134
43. drive shaft bushing requires replacement loosen the Allen locking set screws in the shaft and slip the knob shaft out of the drive shaft If knob itself needs replacement loosen the setscrew on the knob and pull it off the shaft b Installation lf knob or knob end bearing have been removed 1 Lubricate the leaf spring where it contacts the bushings with Dow Corning D 55 Silicone Lubricant see figure 5 9 2 Place the drive shaft intermediate and end bearings on the shaft 3 Place the shaft in the bellows frame Check to make sure the bushings are properly seated 4 Place the knob end bushing on the knob shaft 5 Insert the Knob shaft through the side wall opening of the bellows frame and into the end of the drive shaft 109 Repair and Adjustments Polaroid MP4 MP4 Plus 6 Check to make sure the knob is flush with the housing and the drive shaft is engaged with the column Then tighten the Allen selscrews If knob and knob end bushing were not removed 7 Lubricate the leaf spring where it contacts the bushings with Dow Corning D 55 Silicone Lubricant see figure 5 9 8 Slide the drive shaft assembly through the side wall opening until the Knob is flush to the bellows frame 9 Install the intermediate and end drive shaft bushings on the Shaft 10 Check to make sure the drive shaft is engaged with the column 11 Replace the mounting plate 12 Install the bellows adjustment assembly on the carriage
44. e adjustment is satisfactory firmly tighten the cable locknuts G REFLEX VIEWER ASSEMBLY 1 Lens and Mirror Replacement a Removal 1 Remove the viewer hood by grasping it at the nose opening and applying a strong upward pressure while rotating it out of the viewer 2 Using a Phillips screwdriver while holding the speed nuts with fingertips remove the two screws holding the lens to the viewer base CAUTION Support the lens to prevent it from dropping into contact with the reflex mirror The mirror can be scratched or broken if the lens drops on it 3 Lift the viewer lens and bezel out of the viewer base 123 Repair and Adjustments Polaroid MP4 MP4 Plus NOTE The reflex mirror is not normally removed However a defective mirror can be replaced as follows 4 Rotate the viewer pivot base to the full down position 5 Using a long screwdriver or chisel break the glue bond between the mirror back and the viewer body 6 Lift the mirror out of the viewer body CAUTION If the mirror should break during removal make sure all fragments are cleaned out of the viewer body 7 Remove old glue from mirror contact points in the viewer body D Installation 1 Apply glue to the three mirror contact points of the viewer body 2 Place the mirror in position in the viewer body being careful that it is flush with the body at the lens end and equidistant from each side of the body NOTE Make sure that the mirr
45. e column rails Press the peeled end of the scale into contact with the column 3 Peel off the remaining protective backing and press the scale into place working from the bottom to the top of the column CAUTION Be very careful to keep the scale within the rails and make sure that no air bubbles form as you work up the column 4 Trim off any excess scale that extends beyond the top of the column 5 Reassemble the column on the baseboard 6 Install the carriage the balancer assembly and the bellows assembly onto the column 97 Repair and Adjustments Polaroid MP4 MP4 Plus 3 Replacement of Column Scale XLR Model a Removal 1 Remove bellows assembly from the vertical carriage 2 Remove the balancer assembly 3 Remove the carriage from the main column 4 Loosen the main column locking arm lift the column from the baseboard and place the column on the horizontal surface with the scale facing up 5 Using a knife lift one end of the scale from the column and peel the scale off 6 Remove all old glue from the column b Installation 1 Peel a couple of inches of protective backing from the new self adhering scale starting at the printed end of the scale 2 Align the base of the scale flush with the base of the column and align the remainder of the scale to stay within the column rails 3 Press the peeled end of the scale into contact with the column CAUTION Be very careful to keep the scale
46. e to camera bellows drapes clothing or other flammable materials To avoid electrical shock hazards do not immerse lamps in water or other fluids If service or repair work is required contact authorized service center CAUTION Always turn power off when the system is not in use If the system will not be used for an extended period unplug the power cord from the electric outlet NOTE When halogen lights are aligned as shown in figure 2 54 they will provide even Illumination over the entire baseboard This is most important when photographing large subjects and when using high contract films The exposure guide included with the lights is based on this standard alignment If the lights are positioned in a different manner the recommended exposure may require adjustment Figure 2 54 Normal Lamp Angle When photographing subject at higher magnifications you may wish to tilt the lamps down to move them closer to the baseboard figure 2 55 You should also close the barn doors slightly to prevent aiming the light at the lens 90 Installation Polaroid MP4 MP4 Plus Figure 2 55 Close Up Lamp Angle 2 Replacing the Lamp a Disconnect the lamp power cord from the electrical outlet and remove the lamp from the crossbar b Remove the front to the lamp housing figure 2 56 ra WK P Ze Ca ke Tij d d A Figure 2 56 Removing Housing i c Keep the new halogen lamp in its protective wrapping while
47. ed at the factory for smooth performance over a long period of time Keep all parts of the camera clean and cover the entire system when it is not in use 19 Operation Polaroid MP4 MP4 Plus EXPOSURE GUIDE FOR MP 4 CAMERA amp LIGHTS amp POLAROID LAND FILMS The MP 4 lamps and lamp arms should be positioned and angled for regular copying work as indicated on the equipment and in the MP 4 instruction book The lamps must be of the correct voltage for the power supply used This is intended as an exposure guide and not a precise exposure indicator Each user will experience unpredictable variable in his operating conditions which will affect exposure to some extent Among these are the brightness of uninvited window light or room lighting differences in color and contrast of the subject material line voltage fluctuation and the age of the lamps How to use the tables Table A Find the number that applies to the film type you are using Example 4 Table B Measure the length of the material being copied and the length of its focused image on the ground glass to determine the reproduction scale In this table find the appropriate number Example 2 Table C Decide which lens f number you wish to use Find the number that corresponds to that f number Example 5 Add the numbers you have taken from A B C Total of examples given 11 Table D Find the number that represents this total Next to it you will see
48. ed in the chart on the next page For additional descriptive information part numbers etc please refer to other sections of this manual the latest MP 4 MP4 Parts Catalog and MP4 sales literature In addition to the unique features listed all MP4 Systems have black anodized columns to eliminate reflections on shiny subjects cable release hold downs to minimize wear and breakage and a longer locking release knob lever which allows full rotation of the camera head 14 Description Polaroid MP4 MP4 Plus KEY CHARACTERISTICS MP 4 MP4 MULTIPURPOSE CAMERA SYSTEMS Total Camera Height Column Height Column Rotates Column finish Baseboard Size Wiring harness supplied attached Baseboard Color Well for Light Box Leveling feet Digital Timer Camera Heads All systems Film Holders All systems MP 4 STD 46 116cm 35 90cm No Bright 18x23 46x59cm No White No No MP 4 XL 66 168cm 55 140cm No Bright 23x29 59x74cm No White No No Optional Accessory Fixed Sliding 4x5 sheet 4x5 pack 3 1 4x4 1 4 pack roll MP 4 XLR MP4 STD MP4 XLR 66 46 66 168cm 116cm 168cm 55 35 55 140cm 90cm 140cm Yes No Yes Bright Black Black 23x29 18x23 23x29 59x74cm 46x59cm 59x74cm No Yes Yes White 18 Gray 18 Gray No No Yes No Yes Yes Included 4440 4444 4441 545 550 4447 4448 44
49. eeeceseeeeseceeaeseeeseceeaeeeseeanansass 55 Figure 3 2 Checking Tab EE 56 Figure 3 3 Removing Dark Glde 56 Figure 3 4 Inserting 44 48 Film Holder 56 Fig re 3 5 Pull Out Black TaD E 57 Figure 3 6 Inserting Model 550 Film Holder 58 Figure 3 7 Setting the Timer ccccccceccececceeccececceceeceecececceteeceeeeseaeaeseeeceesees 58 Figure 3 8 Turning on ower 59 Figure 3 9 Sliding Camera Head to boah 59 Figure 3 10 Adjusting Camera Hehe 60 Figure 3 11 Adjusting Belioweknob 61 Figure 3 12 Slide Head rolen 61 Figure 3 13 Pull Out AxvbEmelope 62 Figure 3 14 Pull Out Model 550 Dark Glde 62 Figure 3 15 Shutter Lens Indicator 63 Figure 3 16 Taking the Hciure 63 Figure EA e E WEE 64 Figure 3 18 Pull Yellow Tab EE 64 Figure 3 19 Stan Ri 65 Service Manual Polaroid MP4 MP4 Plus Figure 3 20 Peel Print from Negative ococcococcocococcononooconnononnnnononcnnononconononconos 65 Figure 3 21 Pushing White Tab Out 66 Figure 3 22 Open Door and Hold Pack Down 66 PIQure 3 23 PULOU TOO TaD ti Id 67 Figure 3 24 Remove Roller Assembly ccccceceeeceeeeseeceeeeeeeeeeeeeeeeeeneeeeaeeenenes 67 Figure 3 25 Cleaning Rollers 68 Figure 3 26 Cleaning the Tabziot 68 Figure 3 27 Lower Camera and Lengthen DBellows 69 Figure 3 28 Raise Camera and Shorten DBellows nee 69 Figure 3 29 Column EE 70 Figure 3 30 Bellows Gcale ia Aaaa a a eia 70 Fig re 3 31 Using FRUE ee 71 Figure 2 32 Column
50. ellows assembly 2 Disassembly Reassembly Carriage Assembly Figure 5 2 shows the carriage assembly removed from the column Refer to paragraph C1 for instructions on carriage removal from the column a Disassembly 99 Repair and Adjustments Polaroid MP4 MP4 Plus 1 Remove the bellows adjustment locking lever by unscrewing it in a counterclockwise direction and at the same time removing the bolt and the lock washer 2 Remove the body mounting frame by unscrewing four Phillips head screws from inside the carriage 3 Remove the click adjusting plate and the rotational scale from the body mounting frame by removing two Phillips head screws one from each side of the frame BODY Ke Sean MOUNTING E w 1 FRAME d m HEIGHT ADJUSTING KAOS Y h i d L SC w BELLOWS ADJUSTMENT LOCKING h LEVER e CHALE ROLLERS 21 CARRIAGE E gg LOCKING GUIDE LEVEH ROLLE AS 14 Figure 5 2 Carriage Assembly 100 Repair and Adjustments Polaroid MP4 MP4 Plus Figure 5 3 Removing the Drive Rollers 4 Inside the carriage frame loosen the four set screws holding the height adjusting knob shaft to the drive rollers figure 5 3 Pull the knob and shaft free of the rollers 5 Pivot roller assembly as shown in figure 5 3 and remove the drive rollers from the brass bearing plate 6 Remove the arm grip mounting frame by removing four Phillips head screws and washers which secure it
51. er is operated with the exposure cable release f to expose the film 11 Description Polaroid MP4 MP4 Plus Figure 1 3 Sliding camera head in viewing focusing position film holder is inside the right end of head The vertical column allows positioning the camera head for the desired reproduction size Two column heights are available STD 35 and XL 55 90cm and 140cm see Figures 1 1 and 1 2 In addition a rotatable column Model XLR is available at right in Figure 1 4 permitting the camera head to be aimed at the floor rather than the baseboard This can be useful for photographing subjects not easily placed on the system baseboard Sal aoe Ever e el de Ge a Bi Figure 1 4 Non Rotatable Column left Rotatable Column right CAUTION Before rotating column place adequate weight on baseboard to prevent camera from falling over If baseboard has lightbox replace glass cover with baseboard insert NEVER PLACE HEAVY OBJECTS ON GLASS COVER 12 Description Polaroid MP4 MP4 Plus Figure 1 5 Counterbalancing weight of camera head when column is rotated The third basic element of the System is the baseboard on which the item to be photographed is placed and which supports the vertical column and the lighting system arm The baseboard also houses the wiring switches and receptacles for the lighting system and powered accessories Older MP 4 Systems have white surfaced baseboards and separately s
52. er the bearing plate and rollers making sure that only the nylon portion of the rollers contact the tension spring Rotate the rollers so the setscrews are facing up figure 5 7 3 Apply strong pressure to the rollers and insert the height adjusting knob shaft through the rollers 4 Adjust the rollers so that only the nylon portion touches the tension spring and the rubber drive rollers do not drag on the brass bearing plate figure 5 7 Tighten the setscrews 5 Install the click mounting plate and the rotational scale on the body mounting frame with two Phillips head screws 6 Insert the body mounting frame into the larger hole in the carriage and secure it with four Phillips head screws and washers 7 Install the upper guide rollers as follows Slide the securing bolt through the roller and positioning the two in the mounting hole in the casting figure 5 8 104 Repair and Adjustments Polaroid MP4 MP4 Plus Figure 5 8 Assembling Upper Guide Roller on Carriage Position the lock washer and nut on the bolt and secure it using special tools 11750 and 11763 with socket 11764 Install a new cover over the hole in the casting Apply suitable glue around the edge of the cover before setting it over the hole 8 Install the lower guide rollers as follows Insert the bolt through the casting Slide the guide roller over the bolt Place a washer on the bolt next to the roller Secure the assembly by installing the E
53. es 3 Clean the inside of the rear lens 4 Clean the diaphragm blades carefully with benzine NO SMOKING Do not touch the diaphragm blades with your fingers after cleaning 5 Start laying the blades into the lens with tweezers The ten blades are identical Each has a rounded end and a flat end The protrusion under the rounded end is inserted into the holes of the diaphragm support ring 6 Insert the first six blades clockwise one on top of the other 7 Very carefully move the blades toward the center of the lens This will expose the remaining four holes in the support ring 133 Repair and Adjustments Polaroid MP4 MP4 Plus 8 Place the next four blades into position by inserting them carefully under the blades that have been moved into the center of the lens and placing them into the remaining four holes still going clockwise Be sure to maneuver the blade over the blade at its immediate left 9 When all the blades are correctly in place they form a continuous circle with no top starting blade visible 10 Move the aperture selector to some number between its largest and smallest openings There will be a definite detent at each stop as there is a click ball that rides between the selector ring and the main housing 11 Place the diaphragm actuator into the lens assembly being sure to insert the prong on the actuator into the cut out of the main assembly and selector ring 12 Using a fine pointed tool such as a
54. figure 2 12 in the spring end Tighten the pin e Wind vertical carriage down the column until it is at an easily accessible height figure 2 13 then lock it in position WARNING Never loosen or remove the spring pin unless the vertical carriage is at the top of the column and locked in position 30 Installation Polaroid MP4 MP4 Plus Figure 2 13 Lowering and Locking Vertical Carriage 3 Attach Camera Body to Vertical Carriage a Loosen the know i figure 2 14 until it is in a vertical position Also loosen screws j by about three full rotations 31 Installation Polaroid MP4 MP4 Plus D Orient the camera body as shown in figure 2 15 then push it all the way onto the carriage figure 2 16 Rotate it back and forth slightly until you feel it click into the true vertical position Tighten the screw and then the knob Figure 2 16 Camera Body on Vertical Carriage 4 Put Shutter on Camera a Screw the exposure cable release into its socket k figure 2 17 32 Installation Polaroid MP4 MP4 Plus a POLA fo w H d H 8 G i SW d dv 3 Figure 2 1 7 Cable Release in Shutter Socket b Align the smallest of the three tabs l figure 2 18 on the shutter panel with the smallest of the cutouts m on the camera body and Small Slot in Camera c Push the shutter unit onto the camera in that orientation Rotate it in a clockwise direction figure 2 19 until it comes to a firm stop CAUTI
55. from the base 6 Lift the felt and foam seals out of the film holder D Installation 1 Position the foam seal in the film holder body 2 Position the felt light seal on top of the foam seal and tuck the flap in between the foam seal and the film holder body figure 5 23 3 Lay a thin film of glue on the film holder base and install a new felt light seal on it 4 Position the base on the film holder 5 Replace and tighten the six screws securing the base to the film holder 131 Repair and Adjustments Polaroid MP4 MP4 Plus 6 Check for light leaks through the dark slide slot If light leaks occur repeat disassembly and reassembly paying particular attention to the proper positioning of the foam and felt seals in the film holder body 7 Insert the dark slide in the dark slide slot K REPLACEMENT OF ROLL FILM HOLDER BASE 1 Removal a Remove the four screws and washers securing the base to the roll film holder b Lift the base off the film holder NOTE If the roll film holder requires repair it may be repaired in accordance with standard roll film Camera repair procedures 2 Installation a Replace the four screws and washers securing the base to the film holder and tighten 132 Repair and Adjustments Polaroid MP4 MP4 Plus Figure 5 23 Installing the Light Seal and Foam Seal L REPAIR OF MP 4 LENS 1 Remove the front lens element 2 Remove the diaphragm actuator and blades ten blad
56. g pin on the shutter and a locating notch on the shutter board The pin must be located in the notch b Screw the shutter board retaining ring onto the shutter finger tight then tighten with lens wrench 411043 c Install the 10 inch shutter release cable in the cable mount on the left side of the shutter as viewed in the mounted position d Install the 26 inch pre view shutter release cable in the cable mount on the right side of the shutter as viewed in the mounted position e Install the lens 128 Repair and Adjustments Polaroid MP4 MP4 Plus f Install the shutter board onto the camera head and bellows assembly NOTE Align the smallest of the three tabs on the board with the smallest notch in the camera head PRY OFF PIN RETAINERS 4 FILM DODA HINGE PIN RETAINERS iy PIANO HINGE Figure 5 21 Removing Film Pack Door J PACK FILM HOLDER 1 Replacement of Pack Film Holder Door a Removal 1 Using a jeweler s screwdriver or other suitable tool pry the hinge pin retainers out of each end of the hinge figure 5 21 2 Using a small drift slide the pin out of the hinge far enough to grasp it with pliers Pull the pin out of the hinge and remove the door 3 Repair the film holder door in accordance with standard repair procedures b Installation 1 Position the film holder door on the pack back 129 Repair and Adjustments Polaroid MP4 MP4 Plus 2 Slide the hinge pin into
57. h plenty of water and see a doctor Keep discarded materials away from children animals clothing and furniture Figure 3 20 Peel Print from Negative No White Tab 65 Operation Polaroid MP4 MP4 Plus Carefully open the door and without moving the film pack push the white tab out figure 3 21 Then close and latch the door Figure 3 21 Pushing White Tab Out No Yellow Tab Do not pull another white tab Instead carefully open the holder far enough to get a finger on top of the film pack to hold it down figure 3 22 Grasp the topmost yellow tab and gently pull it all the way out of the holder figure 3 23 and discard it Inspect the rollers and clean them if necessary see the paragraph Clean the Developer Rollers Close and latch the door with the next white tab sticking out Figure 3 22 Open Door and Hold Pack Down 66 Operation Polaroid MP4 MP4 Plus Figure 3 23 Pull Out Top Tab E CLEAN THE DEVELOPER ROLLERS Dirt on the developer rollers can cause a variety of problems such as repeated spots on pictures and jammed film Inspect the rollers before loading film and clean them as follows With both hands lift the steel loops and remove the roller assembly figure 3 24 Figure 3 24 Remove Roller Assembly Clean both rollers with a soft lint free cloth dampened with water if necessary See figure 3 25 Or hold the roller assembly under clean running water Rotate both rollers
58. ht Be sure that the lamp arms do not extend into corridors A ATTACH COLUMN TO BASEBOARD XLR MODEL NOTE The optional light box should be installed before attaching the column to the baseboard See the instructions packaged with the light box 1 Position the column post as shown in figure 2 1 with the milled section a pointing toward the center of the baseboard Figure 2 1 XLR Column Base 2 Fasten the post to the baseboard using the four nuts and bolts provided A wrench is supplied for tightening the nuts Use a suitable screwdriver to hold the bolts while you are doing this 25 Installation Polaroid MP4 MP4 Plus 3 Slide the column onto the post figure 2 2 and secure it firmly with the locking knob b STANDARD MODEL 2 Hold the baseboard in a vertical position and the column ina horizontal position figure 2 3 The scale on the column should face toward the center of the baseboard CNN ee fa ne SE ER Ee KS Figure 2 3 Inserting Bolts in Standard Base 2 Insert the four bolts through the column base and then through the baseboard Add the washers and nuts 3 Tighten the nuts with the wrench provided figure 2 4 use a suitable screwdriver to hold the bolts while tightening them 26 Installation Polaroid MP4 MP4 Plus B ASSEMBLE THE CAMERA 1 Attach Vertical Carriage to Column a Loosen the locking lever c figure 2 5 by at least one full rotation Figure 2 5 Vert
59. ical Carriage cccsccsecceeeeeeeeesueeeeeceeeeeeneeaeeees 32 Figure 2 17 Cable Release in Shutter Gocket AAA 33 Figure 2 18 Small Tab on Shutter and Small Slot in Camera 33 Figure 2 19 Attaching Shutter to CGamerg 34 Figure 2 20 Sliding Head Orientation ccccceceececeeceeeeececeeceeceeeecueceeueseeansueees 34 Figure 2 21 Hooking Sliding Head Onto Camera 35 Figure 2 22 Locking Head it EE 35 Figure 2 23 Sliding Head Release Buttons AAA 36 Figure 2 24 Attaching Pre View Cable to Ghutter nene 36 Figute 2 25 neg Fully Ee EE 37 Figure 2 26 onutter Te 37 Figure 2 27 Attaching Cables to Camps 37 Service Manual 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 Figure 2 45 Figure 2 46 Figure 2 47 Figure 2 48 Figure 2 49 Figure 2 50 Figure 2 51 Figure 2 52 Figure 2 53 Attaching Lens to Ghutter ccc eeceeeeese eee eeeeeeeseeseeseeseeaeeagees 38 Orienting Ground Glass 38 Attaching Ground Olass eee eseeeeeeeeeeeseeseeseeseeaeeeaees 39 Attaching Reflex Viewer 39 U Shaped Adapter Pins and Gonmgs 40 Lamp Arm Orientation Screw at Top 40 Lamp Arm Orientation Angle Indicators Facing Front of Baseboard 41 Tightening Lamp Arm SCrews oococcoccoccoccoccoccononnnonnnnnnnnononnnononnnnnonnnanos
60. ical Carriage Locking Lever b Carefully push lower end of the carriage onto the column making sure that the two white rollers d figure 2 6 slide down behind the rails e 2 Installation Polaroid MP4 MP4 Plus Figure 2 6 Vertical Carriage Rollers and Rails c Lower the carriage further until the two white rollers at the top rest against the top of the column figure 2 7 Slowly rotate the height adjustment lever f in a clockwise direction and as the carriage slowly goes down make sure the white rollers feed in behind the rails Figure 2 7 Vertical Carriage Height Adjustment Lever d Lower the carriage about two more inches and lock it on the column by tightening the locking lever c figure 2 8 28 Installation Polaroid MP4 MP4 Plus Figure 2 8 Vertical Carriage Locking Lever 2 Attach Spring Housing and Counterweight Spring a Insert the spring housing into the top of the column figure 2 9 The spring ends should face the front b Remove the pin g figure 2 10 from the vertical carriage by unscrewing it and pulling it out Figure 2 9 Orienting Counterweight Housing on Column 29 Installation Polaroid MP4 MP4 Plus Figure 2 10 Removing Spring Pin c Unlock the vertical carriage bring it all the way to the top of the column figure 2 11 and lock it again Figure 2 11 Vertical Carriage at Top of Column d Reinsert the pin making sure that it goes through the loop h
61. id MP4 MP4 Plus e Install and remove the film holder two or three times to check pre view cable operation If it down not operate properly readjust the cable as directed in paragraph b immediately above f When you are satisfied that the pre view cable is working properly tight the cable hex nuts Use care not to strip the threads on the cable Use only sufficient pressure snug the nuts against the housing slot F SLIDING HEAD CAMERA BACK ASSEMBLY 1 Disassembly Reassembly of Sliding Head Camera Back figure 5 16 a Disassembly 1 Remove the front panel by removing four screws which secure it to the slide assembly 2 Separate the slide carriage housing from the slide assembly by removing four screws and lock washers Then slide the carriage housing to the left to separate it form the slide assembly 3 Remove the front slide assembly by removing the two screws and hex head nuts that hold it to the frame 4 Remove the rear slide assembly by removing the two screws and hex head nuts that hold it to the frame 5 At this point either of the camera back subassemblies may be removed Four screws hold each of the subassemblies to the frame To remove the subassemblies the light seal must be destroyed to gain access to the mounting screws 6 Disassemble the camera backs according to the instructions contained in Disassembly Reassembly of Fixed Head Camera Back 117 Repair and Adjustments Polaroid MP4 MP4 Plus
62. istance Figure 3 29 Column Scale Bellows Scale The scale on the left focusing column represents the bellows extension when it is read at the point indicated in figure 3 30 Lisa Figure 3 30 Bellows Scale 70 Operation Polaroid MP4 MP4 Plus These scales can be used in conjunction with the tables at the end of this section to set the camera for specific reproduction ratios NOTE If the exact reproduction ratio must be documented place a ruler on the baseboard and photograph it with the original subject See figure 3 31 Be sure the ruler is in the same plane as the original subject Figure 3 31 Using a Ruler H GUIDE TO EXPOSURE CONTROL Exposure is the amount of light that reaches the film through the lens It is controlled by the length of time the shutter is open shutter speed and the size of the opening in the lens lens aperture The shutter stays open for the length of time indicated on the ring The numbers signify fractions of a second thus 60 1 60 sec 4 1 4 sec 1 1 sec etc The lens opening can be made larger or smaller The size of the Opening is measured in f numbers which are marked on the lens ring The highest f number indicates the smallest opening the lowest f number indicates the largest opening Each lens opening will admit either twice as much or half as much light as the one next to it on the ring Thus changing from f 11 to f 8 will double the exposure change fro
63. k and push it to the right while observing the pressure readout on the meter The reading must be between 3 and pounds NOTE This test should be considered a trial and error effort It maybe necessary to measure the pressure required to slide the camera back several times It may also be necessary to alternately tighten and loosen the adjustment screws until a satisfactory reading is obtained in both directions d Light Leak Adjustment NOTE If a light leak problem with the sliding head occurs remove the front panel and complete this procedure 1 Determine if the light leak occurs on the right side of the film holder adapter with the camera head at its full left position If it does 121 Repair and Adjustments Polaroid MP4 MP4 Plus Loosen the screws which are farthest to the right one on each side of the housing Lift the left side of the sliding head to apply a slight pressure on the assembly and retighten the two screws just loosened 2 Determine if the light leak occurs on the left side of the film holder adapter with the camera head at its full left position If it does Loosen the screws which are farthest to the left one on each side of the housing Press down slightly on the left side of the sliding head and retighten the two screws just loosened 3 Determine if the light leak occurs with the sliding head at its full right position If it does this is an indication that either the slide housing assemb
64. lm back 4 Replace bellows 5 Make sure dark slide is fully closed before removing the film holder from the camera 6 Tighten screws on film pack holder base 7 Replace retainer springs 8 Replace gaskets 9 Replace dark slide 10 Check for defective pre view shutter cable and or pre view actuating mechanism If defective replace If OK repair or replace shutter 11 Locate and block off source of reflected light i e window overhead lights etc 12 Repair or replace 1 Reverse cables 2 Replace cable and or actuating mechanism 3 Repair or replace shutter Troubleshooting Pictures dark on one side Pictures have a dark line along one side No lights or no power to accessory receptacle Lamps on one side do not light or no power to accessory receptacle One lamp does not light 4 Press focus lever on wrong side 1 Uneven lighting 1 Dark slide covering part of negative 2 Sliding head not pushed all the way to the left 3 Film holder not seated properly 1 Power cord disconnected 2 Lights not corrected properly 3 Main power cord defective 4 Switch defective 5 Circuit breaker defective 6 Circuit breaker tripped 1 Defective cord between white switch and lights or between black switch and accessory receptacle 1 Lamp defective 2 Receptacle defective 3 Lighting arm cord defective 4 Lamp socket defective 86 Polaroid MP4 MP4 Plus
65. lm of glue to the new cork friction plates 2 Position the friction plates on the viewer pivot body NOTE Let the glue set up for a few minutes before reassembling the pivot body to the viewer base 125 Repair and Adjustments Polaroid MP4 MP4 Plus 3 Position one of the cork washers over the hole in the pivot base and slide the base into position on the viewer body When the base hole lines up with the body hole drop the pivot pin through and secure it with a tinnerman nut 4 Turn the viewer over and position the second cork washer between the base hole and the body hole When they are lined up drop the second pivot pin through and secure it with a tinnerman nut H FOCUSING SCREEN GROUND GLASS REPLACEMENT NOTE There are four different types of focusing screens used with the MP 4 system When replacing the damaged ground glass be certain that the replacement is the same type as the damaged glass 1 Removal a Using a small bladed screwdriver remove the four screws securing the glass retainer springs and remove the springs b Lift out the ground glass target and the Fresnel lens Note the position of these units before removing them from the frame Especially note that the smooth side of the Fresnel is toward the camera lens NOTE Unless they are damaged do not remove the rubber target alignment pads If they are damaged and must be removed be sure to remove all old glue from inside the frame 2 Installa
66. ly or the mounting plate assembly is distorted and must be repaired or replaced Also examine the condition of the light seal on the bottom of the mounting plate 4 When the light leak problem is tracked down and corrected reinstall the front panel assembly e Adjustment of Pre View Shutter Cable 1 Refer to figure 5 18 Set locknut a about 1 8 inch from the end of the threaded cable housing Open locknut b enough to let the two locknuts straddle the slotted bracket 2 Slide the cable over the slotted bracket and finger tighten the two locknuts aGIUST POM 15 Die kaaCgd FIFST IF Ges TR aT 15 NOT SAT GRFACTORY TIAP LOCKE HUTS FOR 17 OBE Ree Figure 5 18 Adjusting the Pre View Shutter Cable Sliding Camera Head 122 Repair and Adjustments Polaroid MP4 MP4 Plus 3 Loosen the lower cable bracket on the bottom of the mounting plate and pull the cable up to create some slack between the slotted bracket and the lower bracket Retighten the lower bracket CAUTION Do not force the carriage in the next step 4 Screw the other end of the cable into the shutter socket 5 Slide the camera head fully to the right The carriage should lock and the shutter should be wide open 6 If the carriage will not lock or if the shutter does not open fully when the head is full right turn the locknuts to get the one inch dimension show in figure 5 18 7 Re examine the carriage locking action and the shutter action When th
67. m f 11 to f 16 will cut the exposure in half 71 Operation Polaroid MP4 MP4 Plus I EXPOSURE CORRECTION To increase exposure make pictures lighter use a longer exposure time slower shutter speed or a larger lens aperture lower f number To decrease exposure make pictures darker use a shorter exposure time faster shutter soeed or a smaller lens aperture higher f number Shutter Speeds 125 60 30 15 8 42 1 Darken Lighten Lens Opening 4 5 5 6 8 11 16 22 32 Lighten Darken J XLR COLUMN ROTATION The column of the Model XLR can be rotated through an angle of 180 degrees so that the camera is aimed toward the floor rather than at the baseboard This position can be useful if you want to photograph something that cannot be easily accommodated on the baseboard WARNING Before you rotate the column be sure to place an object or objects of adequate weight on the baseboard to prevent the camera from falling over If you have a light box in the baseboard remove the glass cover and replace it with the baseboard insert Never place heavy objects on the glass cover To rotate the column loosen the column locking level h figure 3 32 turn the entire column to the desired position and lock the lever again 12 Operation Polaroid MP4 MP4 Plus Figure 2 32 Column Locking Lever Leave the weights on the baseboard figure 3 33 until the camera head has been returned to its normal position over the base
68. n the front of the baseboard see figure 3 8 Then if necessary turn on the lights CAUTION Turn off lights and power when not in use If system will not be used for an extended period of time unplug from electrical outlet Grasp plug not cord and pull to disconnect E 2 aa es a MN Figure 3 8 Turning on Power 3 Slide the camera head into the viewing position Press the button b figure 3 9 and while holding it in push the head all the way to the right so that the reflex view ground glass is above the lens PER EE fon Figure 3 9 Sliding Camera Head to Right 59 Operation Polaroid MP4 MP4 Plus 4 Place the original subject on the baseboard and frame the image If you are using a ground glass only the image will appear upside down If you are using the reflex viewer the image will appear right side up but reversed left to right 5 Size and focus the image Turn the locking lever c figure 3 10 counterclockwise to release the carriage While viewing the image on the ground glass turn the crank d to adjust the height of the camera until the image on the ground glass is about the required size Figure 3 10 Adjusting Camera Height Adjust the focusing knob e figure 3 11 until the image is sharp At this point the image may not be exactly the correct size Adjust the camera height again and refocus You may have to repeat this several times until the image is both exactly the right si
69. ner Model 545 Film Holder This holder may be loaded while inserted in the camera head The Models 545 550 and 405 film holders fit under the U shaped adapter see Section 2 Slide the film holder under adapter figure 3 6 Push it all the way in so it is firmly seated B SET THE FILM PROCESSING TIMER Press and hold the SET button figure 3 7 until the correct processing time is displayed see the film instructions for recommended times The timer will always return to this setting after a processing cycle To reset the timer to a new time 57 Operation Polaroid MP4 MP4 Plus Figure 3 6 Inserting Model 550 Film Holder i Figure 3 7 Setting the Timer To reset it to a longer time than is displayed simply press and hold the SET button until the new time is displayed To reset it to a shorter time e Press the SET and START buttons simultaneously The preset time is canceled and zero is displayed e Press and hold the SET button until the new time is displayed C CAMERA OPERATION 1 Determine the approximate reproduction scale Measure the original subject or area to be photographed and the final size needed Select the lens to be used and attach it to the shutter 08 Operation Polaroid MP4 MP4 Plus Set the lens at its largest aperture lowest f number This will provide the brightest possible image for focusing on the ground glass 2 Turn on the power press the switch o
70. ng four Phillips head screws and nuts 3 Install the carriage assembly on the column and replace the balancer assembly 4 Install the bellows assembly on the carriage XLR Model 1 Position the column on the baseboard with the unpainted section of the base toward the front 2 Align the mounting holes on the column with those on the baseboard and secure the two units using four Phillips head screws and nuts 3 Remove the column on the post and secure it with the locking Knob 4 Install the carriage assembly on the column and replace the balancer assembly 5 Install the bellows assembly on the carriage 96 Repair and Adjustments Polaroid MP4 MP4 Plus 2 Replacement of Column Scale Standard Model a Removal 1 Remove the bellows assembly the balancer assembly and the carriage from the column 2 Lay the main column on the horizontal surface with the baseboard in a vertical position 3 Remove the four base mount bolts using the special wrench provided with the MP 4 and remove the baseboard from the column 4 Using a knife lift one end of the scale and peel the remainder of the scale from the column 5 Remove all old glue from the column b Installation 1 Peel a couple of inches of the protective backing from the new self adhering scale starting at the printed end of the scale 2 Align the base of the scale flush with the base of the column and align the remainder of the scale to stay within th
71. nnennrnrrnrsnnennennennennsnnnnnsnenansansannaennnen 123 2 REPLACEMENT OF VIEWER PIVOT BASE Dap 125 Repair and Adjustments Polaroid MP4 MP4 Plus H FOCUSING SCREEN GROUND GLASS REPLACEMENT nnunnvnnnennnennvnnnennvnnnenvnnnennnnnnenn 126 l REPLACEMENT OF SHUTTER BOARD enn 127 J PACK FLM HOLD N Vase 129 1 REPLACEMENT OF PACK FiLM HOLDER DOOR a e o a o or 129 2 REPLACEMENT OF PACK FILM HOLDER EXIT Docop 130 3 REPLACEMENT OF PACK FILM HOLDER DARK SLIDE LIGHT GEAL 130 K REPLACEMENT OF ROLL FILM HOLDER BASE NENNEN NENNEN ENNEN ENNEN EN 132 A REPAIR OF MP A LENS huse 133 91 Repair and Adjustments Polaroid MP4 MP4 Plus INTRODUCTION This section of the manual provides step by step procedures designed to aid in the repair and adjustment of MP 4 assemblies Although not every possible problem is covered these procedure cover the most likely and highest frequency problems NOTE The MP 4 was manufactured using metric system fasteners nuts screws etc You will need metric tools to work on the unit To improve their seating in screw heads grind down the tops of Phillips head screwdrivers slightly If any touchup work is needed be sure to use the proper Polaroid paint A LIGHTING SYSTEM 1 Replacement of Main Electrical Harness NOTE The components on the main electrical harness are potted Therefore if any component switch circuit breaker etc fails the complete harness must be replaced a Removal 1
72. ns Two Extensions may be used for higher magnification Figure 1 16 Macro Extension for 17mm lens TUNGSTEN LIGHTING SYSTEM Figure 1 17 for general purpose photography includes four 150 watt lamps and lamp holders 110 120V or 220 240V Attach to Lighting Arms supplied separately or light stands 20 Description Polaroid MP4 MP4 Plus Figure 1 17 Tungsten Lighting System QUARTZ HALOGEN LIGHTING SYSTEM Figure 1 18 maintains color temperature for life of lamp Two lamp heads with lamps 110V systems include diffusing and protective screens 220V systems include barn doors and protective screens Heads attach to Lighting Arms or light stands Figure 1 18 Quartz Halogen Lighting System FIBER OPTIC LIGHTING SYSTEM Figure 1 19 made by Dolan Jenner provides intense focused lighting for high magnification photography of small objects Light output intensity is adjustable Includes power supply quartz halogen light source two fiber optic bundles two lens filter adapters lenses and filters 21 Description Polaroid MP4 MP4 Plus Figure 1 19 Fiber Optic Lighting BASEBOARD SUB ILLUMINATION LIGHT BOX Figure 1 20 drops into baseboard well in MP4 XLR System Four 14 watt fluorescent lamps evenly illuminate 11 x 14 43 x 55cm area Ideal for transparent or translucent subjects or shadowless background lighting in conjunction with reflective lighting Figure 1 20 Light Box for MP4 XLR FILM PROCESSING TIM
73. or s first surface is facing the lens end 3 Rotate the viewer pivot base to the full up position to insure that it clears the mirror at all points NOTE Allow the glue to dry before proceeding 4 Insert the screws in the lens bezel and place the bezel ona level surface in the face down position 5 Set the lens into the lens bezel 6 Place the viewer body on the lens bezel and start the speed nuts onto the screws 124 Repair and Adjustments Polaroid MP4 MP4 Plus 7 Holding the lens in position rotate the viewer body onto its side and tighten the two screws to secure the assembly NOTE Remove finger marks from the lens and mirror by wiping them gently with a soft lint free cloth at completion of assembly 8 Install the viewer hood by grasping it at the nose opening engaging the upper lip on the upper lens bezel projections and then rotating the bottom lip into engagement with the lower lens bezel projections 2 Replacement of Viewer Pivot Base Parts a Removal 1 Using a scribe remove the viewer pivot pin tinnerman nuts 2 Slide the pivot pins out of the viewer body while holding the pivot base to prevent it from dropping onto the reflex mirror NOTE The two cork pivot pin washers will fall out when the pins are removed DO NOT LOSE THEM 3 Using a sharp bladed knife peel the cork friction plates from the pivot base 4 Scrape any remaining glue off the pivot base b Installation 1 Apply a fi
74. owering of the film s effective sensitivity in low light levels This effect known as low light level reciprocity failure is common to most photographic emulsions In this guide table D has a built in reciprocity failure compensation for the numbers 16 to 20 Reciprocity failure effects tend to vary somewhat from film to film and the compensation incorporated her are an average for Polaroid Land film types in general Thus the times indicated are a rough guide only EXPOSURE GUIDE MP 4 PLUS TUNGSTEN LAMPS Find the numbers that correspond to the speed of the film you are using Table A the reproduction scale Table B and the lens aperture Table C Add the numbers then find the total in Table D Next to this number is the suggested shutter speed 78 Operation Polaroid MP4 MP4 Plus TABLE A Film Speed ISQ3000 36 ISQ800 30 ISQ400 27 ISQ200 24 150100 21 ISQ80 20 ISQ50 18 I5025 15 ISO3 6 20 NOOO A O zech TABLE B Reproduction Scale 1 10 to 1 5 1 4 to 1 2 0 Y O 0 01 SS GO O MN Measure the length of the original subject and its length on the ground glass to determine the reproduction scale Table C Lens aperture f 4 5 f 5 6 f 8 f 11 f 16 f 22 f 32 2 OD 010 P GO When setting the lens between two f numbers use half numbers Thus for f 11 f 16 use 3 1 2 19 Operation Polaroid MP4 MP4 Plus Table D Shutter speed Total from Shutter A B amp C spee
75. peed Total from Shutter A B amp C speed 7 1 125 sec 8 1 60 9 1 30 10 1 15 11 1 8 12 1 4 13 1 2 14 I sec 15 2 16 6 17 15 18 40 19 1 1 2 min 20 4 min Includes compensation for low light level reciprocity failure This compensation is an average for Polaroid instant films in general and thus a rough guide only Note that color films will require filtration in addition to a longer exposure 82 Troubleshooting Polaroid MP4 MP4 Plus SECTION 4 TROUBLESHOOTING CONTENTS CAMERA tod 84 PROBLEM tens o el es EE e 84 PICTURES OUT OF ee se 84 SHUTTER WILL NOT OPEN OR OPEN BUT WILL NOT CLOSE FOR VIEWING OR PICTURE TAKING ccocooco 84 PICTURES ARE LIGHT STRUCK IN ONE AREA 00oococococncncnonncncnnnononnnn meno nnnnn nn nr nr narine rnnr anrr nr nnnennnnaninenens 85 SHUTTER FAILS TO OPEN WITH FILM HOLDER REMOVED FROM ADAPTER OF FIXED HEAD OR WITH SLIDER TOO FAR LEFT ON SEIDING HEAD EE 85 PICTURES DARK ONONE SIDE EE 86 PICTURES HAVE A DARK LINE ALONG ONE SIDE cu ATA e eee 86 NO LIGHTS OR NO POWER TO ACCESSORY RECEPTACLE anunnnnnnvnnnnnnnnnnnnvnnnnnnenennnenenvnnenenenenrnvrnenenene 86 LAMPS ON ONE SIDE DO NOT LIGHT OR NO POWER TO ACCESSORY BECEPTACLE conos 86 ONELAMP DOES NOTA EE 86 PACK FIEMBACK san 87 24510 21E EE 87 SO EE 87 PIERRE 87 545 4X5 FIEM HOLDER add 88 PROBLEM NN 88 ENVELOPE POLEST UNE 88 NEGATIVE CAP DOES NOT RELEASE CAN T PULL NEGATIVE OUT 88 NEGATIVE CAP NOT HOLDING
76. sible a wide range of reproduction ratios from extreme reduction to high magnification When used with a microscope even higher magnification is obtained The numerous options and accessories described on the following pages make the MP 4 and MP4 complete photographic systems limited only by the user s imagination 10 Description Polaroid MP4 MP4 Plus The basic elements of any system are a CAMERA HEAD carriage mounted on a VERTICAL COLUMN attached to a BASEBOARD and a LIGHTING SYSTEM to illuminate the subject Figure 1 2 MP4 XLR System with 55 140cm rotating column amp baseboard well The camera may be either a fixed head type such as the 8x10 camera shown under Options and Accessories or a sliding head type as shown in Figure 1 3 With a fixed head the film holder must be removed from the head before framing and focusing the picture With the sliding head see Figure 1 3 a ground glass screen and an optional reflex viewer a are mounted on the left end of the head and the film holder j is in the right end of the sliding head This allows focusing and viewing the subject while the film and film holder remain in place in the head When the head is moved into the viewing focusing position shown a preview cable release opens the shutter d Then sliding the head to the left closes the shutter and brings the film holder into the picture taking position over the camera body c To take the picture the shutt
77. tch 46 Installation Polaroid MP4 MP4 Plus d a Figure 2 46 Two Lamps on Crossbar The halogen lighting system requires two 300 watt halogen lamps which may be purchased separately NEVER USE LAMPS OF A HIGHER WATTAGE THAN RECOMMENDED 1 Assembly a Loosen the know on the lamp mount and slide the lamp into its correct location on the cross bar figure 2 48 b Tilt the lamp so it is aimed at about a 45 angle to the baseboard figure 2 49 then tighten the knob XLR Standard Figure 2 47 Halogen Lighting System 47 Installation Polaroid MP4 MP4 Plus Figure 2 49 Orienting Lamp c Repeat steps a and b for the other lamp d Loosen the locking lever a figure 2 50 and adjust the angle of each arm so the indicators b are aligned This will place the lamps at the correct angle for most photography Figure 2 50 Aligning Lamp Arms 48 Installation Polaroid MP4 MP4 Plus e Run the electric cord down the side of the lamp arm and clamp it at the top and bottom of the arm using the clips provided figure 2 51 f Plug the lamp cords into the black outlets on the baseboard Use the black switch figure 2 52 to turn them on and off The ON OFF switch on the back of the lamp figure 2 53 may be left ON Figure 2 51 Dressing Cords Figure 2 53 ON OFF Switch on Light 49 Installation Polaroid MP4 MP4 Plus WARNING The lamps get hot Do not touch them or place them too clos
78. ted on the top side of the right hand light arm frame and on the bottom side of the left hand frame 3 Using a large wide bladed screwdriver unscrew the bolt from the light arm locking handle figure 5 1 93 Repair and Adjustments Polaroid MP4 MP4 Plus _ LIGHT ARM LINE UP gt E y THESE EDGES i EE A A Al ff a F E F FLAT WASHER e HOLT LOCKING HAMDLE Figure 5 1 Aligning Light Arm and Locking Handle 4 Remove the locking handle and flat washer from the bolt 5 Slide the arm off the bolt being careful not to lose the anti friction serrated washers 6 Remove the bolt from the frame b Installation 1 Slide the bolt into the light arm mounting frame 2 Install one serrated washer on the mounting frame with the tangs seated in its slots and one serrated washer on the arm with the tangs seated in its slots 3 Slip the light arm onto the bolt with the serrated side of the arm washer facing the serrated side of the frame washer 4 Replace the locking handle flat washer onto the bolt and position the locking handle over the threaded end of the bolt 94 Repair and Adjustments Polaroid MP4 MP4 Plus NOTE To insure that the locking handle will function properly it must be aligned so that the finger portion is on the same place as the light arm figure 5 1 5 Screw the bolt into the locking handle until a slight resistance is felt when the light arm is moved 6 Using an Allen wrench tighten
79. tion NOTE If the rubber pads were removed apply glue to the bottom of the new pads and press them into position inside the frame Allow a few minutes for the glue to dry before continuing a Position the Fresnel with the smooth side down and install it firmly seating it in the frame 126 Repair and Adjustments Polaroid MP4 MP4 Plus b Orient the ground glass with the frosted side facing the camera lens Note the alignment arrowhead on the glass figure 5 19 This arrow must be pointing to the right as shown in the Illustration when the glass is installed se ARROW HEAD GROUND GLASS Figure 5 19 Replacement of Ground Glass c Set the glass into the frame over the Fresnel Be sure the glass and the Fresnel are aligned within the frame d Secure the assembly by replacing the glass retainer springs with the retainer screws I REPLACEMENT OF SHUTTER BOARD 1 Removal a Remove the shutter board assembly from the camera head and bellows assembly b Remove the lens c Disconnect the pre view shutter release cable from the shutter 127 Repair and Adjustments Polaroid MP4 MP4 Plus SPECIAL TOOL 411043 Figure 5 20 Removing Shutter Board Retaining Ring d Remove the 10 inch shutter release cable from the shutter e Using lens wrench 11043 unscrew the shutter board retaining ring figure 5 20 2 Installation a Position the shutter board on the shutter NOTE There is a locatin
80. to the casting 7 Remove each of the lower guide rollers as follows figure 5 4 101 Repair and Adjustments Polaroid MP4 MP4 Plus CASTING Figure 5 4 Removing the Lower Guide Rollers Pry off the E ring securing the roller to the shaft Gently drive the shaft out of the casting by tapping it from the inside The shaft head will push the cover out of the casting and the roller and washer will fall off the shaft 8 Remove each of the upper guide rollers as follows Drive a prick punch through the cover in the casting and pry the cover free figure 5 5 CASTING FORCE COVER DUT Figure 5 5 Removing Upper Guide Roller Cover Plate 102 Repair and Adjustments Polaroid MP4 MP4 Plus Using special tools 11750 and 11763 with socket 11 764 remove the nut and lock washer holding the roller assembly bolt to the casting figure 5 6 SOCKET 411764 GUIDE ROLLER HOLDER 411763 SPECIAL TOOL 11750 Figure 5 6 Removing Upper Guide Rollers Slide the bolt with the roller out of the casting and remove the bolt from the roller b Reassembly 1 Lightly lubricate the roller tension spring on the arm grip mounting frame with Dow Corning D 55 Lubricant figure 5 7 103 Repair and Adjustments Polaroid MP4 MP4 Plus TENSION SPRING CLEARANCE CLEARANCE Sa E HERE HERE SETSCREWS 4 Figure 5 7 Correct Position of Drive Rollers 2 Lift the brass bearing plate and insert the rollers Low
81. tric cords down the side of the lamp arm and clamp them at the top and bottom of the arm using the clips provided figure 2 44 Figure 2 44 Dressing Electric Cords 45 Installation Polaroid MP4 MP4 Plus f Plug the lamp cords into the white outlets on the baseboard Use the white switch figure 2 45 to turn them on and off WARNING The lamps get hot Do not touch them or place them too close to camera bellows drapes clothing or other flammable materials To avoid electrical shock hazards do not immerse lamps in water or other fluids If service or repair work is required contact authorized service center CAUTION Always turn power off when the system is not in use If the system will not be used for an extended period unplug the power cord from the electric outlet NOTE When tungsten lights are aligned as shown in figure 2 46 they will provide even Illumination over the entire baseboard This is most important when photographing large subjects and when using high contrast films The exposure guide included with the lights is based on this standard alignment If the lights are positioned in a different manner the recommended exposure may require adjustment G HALOGEN LIGHTING SYSTEM Generally the lamps are attached to the lamp arms figure 2 47 but they may also be used on separate light stands The mounting bracket on each lamp is threaded to accept a standard tripod screw Figure 2 45 Baseboard Swi
82. ue to hesitation or stopping while pulling out the yellow tab Very light image or none at all The film was fogged or extremely overexposed See the Guide to Exposure Control Nearly black or solid image Caused by insufficient or no exposure Be sure the black tab and dark slide have been removed and that the electronic flash fired if used See also the Guide to Exposure Control See the instructions supplied with the film holders for additional information M MP 4PLUS CARE AND MAINTENANCE Polaroid film holders The two steel rollers in each film holder must be kept absolutely clean to prevent spots on picture and jammed film Always check the rollers before loading film clean them with a damp cloth as explained in the instructions packaged with the holder Lens and shutter Never touch the surface of a lens You can remove fingerprints and smudges by wiping gently with lens tissue or a soft lint free cloth The elements in each lens are precisely mounted and aligned by the manufacturer and should be removed only by a qualified camera repair technician The shutter is lifetime lubricated do not attempt to oil or adjust it Reflex viewer The reflex viewer contains a front surface mirror which is easily scratched or damaged Do not touch it Remove fingerprints with a soft lint free cloth use an antistatic brush to remove dust Moving parts Never attempt to lubricate any part of the assembly All moving parts are lubricat
83. upplied lighting wiring harnesses Newer MP4 Systems have baseboards with the following features an 18 gray surface to reduce reflections and permit pre metering exposures built in drawer to hold operating instructions and lenses Figure 1 6 leveling feet at four corners built in wiring harness for lighting and accessories and on XLR models a well to accept the optional subilluminating light box see Figure 1 2 and Options and Accessories sections Figure 1 6 Storage drawer in MP4 System baseboards 13 Description Polaroid MP4 MP4 Plus The last basic system element the lighting system may be selected from three optional choices tungsten Figure 1 2 quartz halogen or high intensity fiberoptic Tungsten and halogen lamps are usually mounted on the lighting arms but may be used on separate light stands Lamp holder mounting brackets are threaded to accept standard tripod screws All lighting systems are shown in the System Options and Accessories section In addition for MP4 XLR Systems only an optional subillumination Light Box is also available This unit drops into a well in the XLR baseboard cover is removable and is particularly useful when photographing transparent and translucent subjects lt may also be used in combination with other light sources to eliminate shadows around solid objects B DIFFERENCES AMONG MODELS The key characteristics of the five different MP 4 and MP4 systems are Summariz
84. ws b Installation 1 Completely remove all old glue from the bellows mounts On newer models this step is not necessary 2 Using either Elmer s Glue All or UHU Instant All Purpose Glue do not use substitutes place a thin bead of glue around the top and bottom of the bellows where it will mate with the mounis 3 Run a double strand of yarn on both glued areas NOTE Allow a minute or two for the glue to partially set up 106 Repair and Adjustments Polaroid MP4 MP4 Plus 4 Position the bellows on the camera head over the shutter mount Carefully lower the bellows onto the mount and secure it using the four Phillips head screws 5 Align the upper portion of the bellows to the film holder adapter mount and secure it there with four Phillips head screws c Light Leak Test 1 Bring the assembly into a darkroom after the glue has completely dried 2 Place a small light bulb inside the bellows and carefully examine the bellows to mount areas for light leaks 3 If a small light leak is noted seal the area with Permatex 2 Non Hardening Form A Gasket Use no substitute Re examine the bellows If light is still visible repeat this entire procedure 2 Replacement of the Mounting Plate Refer to figure 6 3 in Section 6 to locate items mentioned in this procedure a Removal 1 Remove the bellows adjustment assembly from the carriage 2 Remove the six screws holding the mounting plate assembly figure
85. ze and also in focus See also the paragraph on Sizing and Focusing Finally lock the carriage in position by turning the locking lever clockwise without excessive force 60 Operation Polaroid MP4 MP4 Plus 6 Center the subject on the baseboard in the way you want to reproduce it Remember to use the ground glass marking that is intended for the film format you are using 7 Slide the camera head into the picture taking position Press the button and while holding it in slide the head all the way to the left figure 3 12 to place the film holder above the lens glatt ee Figure 3 12 Slide Head to Left If using a Model 545 film holder pull out the envelope figure 3 13 With a Model 550 film holder pull out the dark slide figure 3 14 61 Operation Polaroid MP4 MP4 Plus Figure 3 13 Pull Out 4 x 5 Envelope 8 Set shutter speed and lens aperture for correct exposure Use the exposure guide supplied with the lights See also the paragraph on Guide to Exposure Control To set the shutter speed turn the silver ring to place the indicator f figure 3 15 at the desired speed Never set the indicator between shutter speeds lett ona W A a me T e da Figure 3 14 Pull Out Model 550 Dark Slide To set the lens aperture turn the lens ring to place the desired aperture opposite the dot g The ring will click into position The lens may be set between full aperture settings 62

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