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2. Replacement and alignment 314 8 ELECTRICAL SYSTEM 8 1 Electrical System A Function Control Switch B Electrical Circuit 314 9 SERVICE UPDATES AND MODIFICATIONS Attachment CIRCUIT DIAGRAMS 22 2 2 Series 48 49 49 49 50 50 Series INTRODUCTION l This Service Manual provides the necessary informations for the repair adjustment and maintenance of EIKI NST NT series projectors model 5 0 NST 1 NST 2 NST 3 0 NT 1 NT 2 and NT 3 and also EX 2000 N series except for the Xenon lamp supply 2 This service manual contains some part numbers for convenience in identification only When ordering replacement parts refer to NST NT replacement parts list 3 EIKI NST NT series projectors may in the future be improved or modified Modifications made after the issue of this manual will be covered by Service Updates 1 copy of all of the pertinent diagrams are attached at the end of this manual 5 CAUTION Care must be exercised to avoid electrical shock while servicing the projector a N SERIES TROUBLE SHOOTING CHART SYMPTOM 1 Pilot lamp not on 2 Pilot lamp on motor does 1 not run in forward position 40 23 3 Pilot lamp on motor runs but the lamp d
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4. Motor Circuit Diagram Connector Wiring Code Silent Film Operation And 50 60Hz Conversion P Transformer Module Transformer Circuit Diagram Connector Wiring Code w k gt gt k b gt k 7 r m w a B k m a m gt m F Lens Holder And Gate Module Film Gate ASSV Film Shoe and Lens Holder Assy w gt w gt 9 5 ya w Y w w 5 Take Up Arm A Adjustments k y a 1 gt y gt 4 E 0934935 Magnetic Record Amplifier 4 N Series PAGE 314 5 GENERAL MECHANICAL SERVICING AND ADJUSTMENTS TABLE OF CONTENTS Title Supply Arm Adjustments Reverse Projection Adjustments Lower Loop Setter System Adjustments gt gt w gt 4 m A A A 3 T s w wo self Threading Mechanisni
5. THE INFORMATION CONTAINED IN THIS ADOBE ACROBAT PDF FILE IS PROVIDED AT YOUR OWN RISK AND GOOD JUDGMENT THESE MANUALS ARE DESIGNED TO FACILITATE THE EXCHANGE OF INFORMATION RELATED TO CINEMA PROJECTION AND FILM HANDLING WITH NO WARRANTIES NOR OBLIGATIONS FROM THE AUTHORS FOR QUALIFIED FIELD SERVICE ENGINEERS IF YOU ARE NOT A QUALIFIED TECHNICIAN PLEASE MAKE NO ADJUSTMENTS TO ANYTHING YOU MAY READ ABOUT IN THESE ADOBE MANUAL DOWNLOADS WWW FILM TECH COM EIKI ELF N Series 16mm Projector Service Manual www cineinfo co uk www cinephoto co uk TABLE OF CONTENTS Title INTRODUCTION 314 1 PRINCIPLES OF OPERATIONS 1 1 1 2 Mechanical System 1 3 Electrical System 1 4 Sound System A w a w amp Y 9 gt Fk nn 4 k F gt X y n w lt wj T o o 314 2 SERVICE PROCEDURES 2 1 5 2 2 Tools And Test Equipment 2 3 Lubricants And Lubrication Charts 2 4 Troubleshooting Hints 9 P k d k cx w w P m w P B B p 314 3 MODULE REMOVAL AND INSTALLATION 3 1 Cam Tank Module 3 2 Amplifier Module 3 3 Motor Module 4 w m w wm x K 83 lt
6. lA rr a Loma i UM KAKA KAA i Pore tare 15141111 ing 2 Rubber roller and tension gulde out of alignment 3 2 sprocket shoe not seating property 1 Dry cork of spindle assy 2 Dirty or sticky take up arm belt or take up pulley 1 Reverse clutch strong spring too 1 Take up arm belt broken or stretched or oily belt 2 Defective ball bearing 3 Loose spindle shaft 4 Take up pulley binding 5 Excessive grease on take up pulley 6 Clutch cam defective 7 Too loose film on the take up reel 1 Broken or stretched or oily supply arm belt 2 Reverse belt broken or oily 3 Clutch cam not engaging 4 Reverse clutch spring weak N Series REMEDY 1 Release to normal run posi tion Check amp replace Tighten See Sec 4 1 Tighten Replace Check amp re install Replace with correct pulleys See Sec 4 3 D 1 Remove lubricate adjust See 5 5 B5 2 Check amp adjust See Sec 5 5 B6 Check amp adjust See Sec 5 5 7 Lubricate cork See Sec 5 T 2 Clean or replace See Sec 5 1 1 Check amp adjust See Sec 5 3 1 Replace or clean d Q ae 2 Replace 3 Tight n screw 4 Clean or replace 5 Avoid over lubrication 6 Check amp replace reposi tion clutch cam See Sec 5 1 7 Check amp absorb extra film slack 1 Replace 2 Clean or replac
7. 34 Excessive noise in the film gate in forward with al go d undamaged film Upper loop too small Film contacting the setter roller Dirty film gate Loose Incorrect claw protrusion Inner guide rail binding Film shoe bent worn binding x 8 Claw position Incorrect loop 1 QY Un E 9 Weak or broken cam follower spring 35 Unsteady picture 1 See Symptom No 34 noise in the film gate 1 Incorrect shutter blade posi tion 36 Travel ghost N Series REMEDY 15 1 Check amp lubricate 2 Adjust spring tension or re 1 Check reverse rubber rofler s function See Sec 5 3 2 Clean amp remove the cause of binding 3 Check amp adjust See Sec 5 4 1 Repair or replace 2 Check amp tighten 3 Check amp adiust See Sec 5 5 B1 4 See Symptom No 29 Repair or replace Check amp adjust See Sec 5 5 B1 3 Check amp adjust See Sec 4 1 01 ho Check 1 sprocket timing Check 2 sprocket and loop setter timing See Sec 5 4 B Clean Tighten Check Check amp adjust Check amp replace OY 4 uy 8 Check amp adjust Sce Sec 4 1 D2 Replace See Sec 4 1 B 2 1 Check amp adjust See Sec 4 1 F N Series MECHANICAL SYSTEM SYMPTOM PROBABLE CAUSE _ REMEDY 37 Excessive noise in reverse 1
8. 100 Bracket Pin 100 Rubber Pinch Roller Molybdenum 5628 19 Take Up Pulley amp Shaft Molybdenum 5628 Disulfide Disulfide Grease Grease Self Thread Lever Petroleum 5631 20 Supply Arm Spindle Shaft Petroleum 5631 Oil Rubber Pinch Rolier Petroleurn 5631 21 Molybdenum 5628 Pivot Shaft Oil Disulfide Rewind Lever Shaft Petroleum 5631 Grease Oi 21 A Tank Felt Molybdenum 5632 Dampening Roller Petroleum 5631 Disulfide Pivot Shaft Oit or Grease 5628 Tension Gear Arm Petroleum 5631 22 Rewind Gears Shaft Silicone 5629 Pivot Pin 100 Tension Gear Shaft Silicone 5629 23 Flywheel Hole Petroleum 5631 100 Oil 1 Sprocket Gear amp Petroleum 5631 24 Loop Safety Roller Silicone Oil 5629 Worm Gear Oil 100 Reverse Rubber Roller Petroleum 5631 25 Main Interlocking Bracket Silicone 5625 Shaft Oil Grease Sound Drum Ball Bearings Factory OB 26 Reel Guide Bracket Hole Petroleum 5631 sealed 6082 LUBRICANTS amp LUBRICATION CHARTS SUGGESTED EIKI N Series SUGGESTED EIKI ITEM DESCRIPTION LUBRICANT PART ITEM DESCRIPTION LUBRICANT PART 27 Reel Guide Wire Petroleum 5631 31 Function Switch Cam Molybdenum 5628 Anchorage Fulcrum Pin Oil Bracket Disulfide 28 Shutter Pulley Bushing Molybdenum 5628 Grease Disulfide 32 Function Switch Shaft Molybdenum 5628 Grease Disulfide 29 Cam Tank Fulcrum Pin Petroleum 5631 Grease 33 Loop Safety Roller Arm Silico
9. the still position the heat filter 57 allows a single frame to be shown without burning the film however the projector is not designed to operate in this position for extended periods of time Long still operations will cause premature wear to the shutter pulley bushing and cam tank shaft 82 N Series 4 1 G 4 2 AMPLIFIER MODULE Refer to the amplifier circuit diagram A Specifications 1 Solid state 3 1 5 7 transistors 9 transistors for 3 type 2 Output power 20 watts RMS 8 ohm load 3 Distortion Less than 4 at 400Hz measured with SMPTE 400Hz Signal Level Test Film Less than 1 at 1 KHz measured with SMPTE Multi Frequency Test Film 4 Wow amp Flutter Less than 0 2 WRMS 5 Frequency response Optical SOHz 7000Hz 4db Magnetic 50Hz 10000Hz 4db Magnetic Recording Range SOHz 10000Hz 6 S N ratio of the amp 60db Mic input impedance 600 ohm and up 8 Mic input level 10 max high or low imped ance for 2 type and high impedance only for 3 type 9 Phono input level 50 high impedance 10 Speaker Jacks 8 ohm B Amplifier Power Supply Circuit see rig 2 40 volts AC power to the amplifier is supplied from the transformer secondary windings through pins 1 4 2 of the 9 pin socket MT 9 S U Cro Cs Series 4 2 NOTE NT projectors after S N 26136 and NS
10. 4 3 MOTOR MODULE Motor Diagram A Specification Fig 49 RED BROWN AC Induction type pep 1 20 Ep m THERMAL SWITCH 100 120V and 220 240V CA 120 UL ONLY Power consumption 144 168W 120V 1 2A or 220 240V 0 7 Starting Torque 1 6kg Rated Torque 0 8kg WHITE 6 PIN NYLON CONNECTOR MALE MALEHUL ONLY CONNECTOR C 6 pin Motor Connector Female Fig 50 Pin Wire Color Connected To 1 Brown Micro Switch 1 2 White Micro Switch 2 3 4 Blue Micro Switch 3 5 Grey Micro Switch 3 6 Red AC Terminal 4 3 Semko Terminal ND Fig 50 39 D Silent Film Operation And 50 60Hz Conver sion 1 Silent Film Operation Disconnect power cord b Open rear cover Turn inching knob at the same time guiding the belt first to the smaller motor pulley then to the larger shutter pulley c Change back to sound speed by reversing the above procedure NOTE 50 60Hz models do not have silent speed 50 60Hz Conversion The standard series projector is available either as 50Hz sound and silent or 60Hz sound and silent operations Conversion from 50 to 6 2 or 60 to 50Hz be accomplished by changing the motor pulley only 5OHz Sound amp Silent 24fps 18fps 312 11801 312 12921 Shutter Pulley Motor Pulley Sound 24fps speed Silent 18fps sp
11. Adjustments 1 1 Sprocket shoe assembly 2 1 3 Retraction of the claw 4 2Filmguie 5 Sound drum rubber pinch roller 6 Tension guide and roller assembly 7 2 Sprocket and shoe assembly gt Y Rewind Mechanism Adjustments gt W w w 9 Sound Drum And Flywheel Adjustments 314 6 SOUND PICK UP SYSTEM 6 1 Optical Sound Focusing Procedure A Ahgnment 22 1 Tools and equipment 2 Set up procedure illl ls 3 Sound focus adjustment 4 Buzz track adjustment gt 6 2 Magnetic Sound Playback System Description o B Alignment 1 Tools and equipment 2 Set up procedure 314 7 LAMP CIRCUIT 7 1 Lamp Circuit A
12. x Z 2273 MAIN INTERLOCKING BRACKET 312 17091 RUBBER PINCH Z ROLLER SOUND DRUM 312 17991 BRACKET 6 Tension Guide And Roller Assembly amp ROLLERS N Series 5 5 B6 Fig 95 TENSION GUIDE The tension guide and roller assembly provides the dampening required between the 2 sprocket drive and the sound drum When the guide rides midway between its limits wow and flutter is minimized During the self thread operation the tension guide 41 provides a path for the film to travel from the sound drum to the 2 sprocket drive Fig 96 ST 17371 SPRING 312 17361 ST 17351 PIN ARM ST 17191 GUIDE ROLLER 57 The rollers 42 and 43 must be clean and rotate freely on the shafts The tension guide assembly 41 must pivot freely without binding A rhythmic movement of the tension guide roller assembly indicates that a roller or the sound drum is binding or out of round An out of round or bent 2 sprocket drive will also cause excessive tension guide movement All of the above symptoms will result in abnormal wow and flutter The tension of the guide and roller assembly is determined by spring 49 and can be adjusted by replacing the spring or slightly stretching or shortening the spring to achieve minimum wow and flutter All nylon rollers should be cleaned with alcohol and lubricated sparingly with silicone 7 2 Sprocket And Shoe Assembly Oo go Fig 97 50 The
13. 72 amp Fig 73 against the set collar behind the flywheel thereby driving the set collar or the sound drum in the counter clock wise direction Fig 72 14 10 N Series 5 3 Fig 73 SPRING REVERSE RUBBER ROLLER SOUND DRUM SHAFT SET COLLAR Driving the flywheel is necessary to maintain the lower loop when operating the projector in reverse In normal forward projection the main drive belt carries the reverse rubber roller and bracket assembly 15 away from the set collar where it can rotate freely The rubber roller must not be in contact with the set collar in the forward mode See Sec 5 7 B Adjustments The reverse take up clutch requires no lubrication except the bushing of the clutch cover pulley 18 See lubrication chart When re assembling the reverse take up clutch mechanism it is important that the clutch cam 19 be positioned correctly space of approximately 0 2mm is required between the drive gear assembly 8 and the pulley 18 This is determined by the position of the set collar 20 Fig 774 8 The reverse rubber roller requires no adjustments as long as the main drive belt is in contact with the roller s drive gear The spring 24 is required to maintain enough pressure to assure the gears contact with the main drive belt It may be necessary to stretch this spring to assure that the roller has cleared the set collar in the normal fo
14. 9 gt A A 4 o w 48 9 4 F i 4 4 Bb 4 t b 9 4 w 4 4 4 4 w F 4 amp dA amp a 4 9 N 4 a aa 314 4 MODULE REPAIR AND ADJUSTMENTS 4 1 Cam Tank Module Specifications Disassembly Re Assembly Adjustments 1 Claw Protrusion 2 Claw Position And Framing Claw Replacement Changing Shutter Blades Still Picture Clutch Amplifier Module Specifications Power Supply Circuit Audio Amplifier Circuit w k Gg h k k n m m d w w w w y y y B w e 4 w u w w y w n x n a n n a a c 4d VOW gt w m w w y 4 m w w w e Qmm B 9 4 n 8 d a amp Po 4d B o T m m w 8 9 w Y Y Amplifier Circuit 5 4 Motor Module 8
15. adjust See Sec 5 5 B6 1 Check amp adjust See Sec 5 7 2 Check amp replace Sec Sec 5 5 B5 314 1 PRINCIPLES OF OPERATIONS 1 1 INTRODUCTION The EIKI series self threading projector is very similar to the earlier R series model with added improvements such as silent threading flat response amplifier lighter weight etc With few exceptions such as color most parts from the series substitute directly into the previous R series This manual also covers the NT manual threading models when excluding the sections on the thread ing mechanism 1 2 MECHANICAL SYSTEM The EIKI Self threading projector is controlled by a single function switch for forward reverse and high low lamp positions A THREADING Threading is accomplished by setting the threading guide lever to thread function switch to forward and inserting the film into the threading channel The threading mechanism is automatically released and engages the claw by a light tug of the film when attaching it to the take up reel B FORWARD LAMP Advance the switch from forward to lamp low or high REVERSE Toreverse the projector return the function switch to OFF and then to reverse and lamp D REWIND To rewind the film engage the rewind lever Attach the film to the empty supply reel and advance the function switch to For ward 1 3 ELECTRICAL SYSTEM EIKI series projectors are avai
16. 2 Replace Series See Sec 4 3 5 Function switch does not follow the indicated sequence 1 Loose function switch knob 2 Loose switch cam 3 Reverse or take up clutch cam s install d incorrectly 1 Re locate and tighten 2 Re position and tighten 3 Check and repair See Sec 5 1 amp 5 3 SYMPTOM 6 2 film guide or self thread lever does not set the mecha nism to thread 7 Leader or film is dimpled the first few inches by the sprocket teeth 8 Leader jams in the 1 film guide Jg Tip of the leader enters underneath the inner guide 2 Loose guide rail screws rail 10 the gate and jams a amua Film does not thread through 1 Film SELF THREADING SYSTEM PROBABLE CAUSE 1 Cam bracket is loase on the 2 Tilm guide shaft 2 Main interlocking bracket is binding or not latching with the release bracket hook 1 Film is inserted with the sprocket holes opposite the sprocket teeth 2 Not enough clearance be tween the sprocket plate and the film shoe 3 Film path and 2 sprocket drive out of alignment 4 Film leader too soft 1 Film leader not trimmed properly 2 End of film is severely curled or twisted 3 Very soft leader 4 51 tilm guide shaft loose or bent 5 Aperture plate assembly mis aligned 1 Inner guide rail bent or not aligned correctly 3 Film leader end curled or twiste
17. 5 4 4 pS Fig 113 OSCILLOSCOPE 6 2 MAGNETIC SYSTEM A Description In addition to the standard optical sound play back models NST 2 amp NT 2 include magnetic soundtrack playback and models NST 3 amp NT 3 include both magnetic playback and record The Mag Opt selector switch operates a lever which positions the magnetic head against the films sound track at the same time the appropriate electrical connections are made In the record models the lock out button prevents the selector from being accidently switched to record A special combination record play and erase head is used for simplicity and a minimum of adjustment Both the record level and playback volume is accomplished with the volume control and equalization is provided by the bass and treble controls The small meter provides level monitoring during record Since the record and playback is accomplished using Only one head the alignment procedure for the NST 2 amp NT 2 and NST 3 amp NT 3 models are the same SOUND PLAYBACK HUM COIL 314 40301 Fig 114 NT S N 18475 AND UP NST S N 10489 AND UP ADJUSTMENT Tr SCRE SS y s MAGNETIC HEAD B Magnetic Head Alignment Procedure 1 Tools and Equipment Required a Screw driver set so b Magnetic Azimuth 7000Hz alignment SMPTE test film loop Pliers VTVM Audio Range and Or Oscilloscope 8 ohm 30 watt dummy load resistor External speaker front cover 0
18. 92 3 FILM GUIDE MINIMUM CLEARANCE Sound Drum Rubber Pinch Roller Fig 92 93 Fig 93 RUBBER PINCH ROLLER 312 17991 PINCH ROLLER BRACKET GUIDE ROLLER 3 FILM GUIDE The sound drum rubber pinch roller is mounted on the 4 film guide or pinch roller bracket 312 17991 which directs the film up and over the sound drum in the self thread operation This 15 accomplished by the interlocking bracket 312 17091 which depresses pin 312 17361 raising the rubber pinch roller away from the sound drum When the self thread mechanism is released the rubber pinch roller rests firmly against the sound drum is Important that the rubber pinch roller be kept clean and that it rotates freely on the shaft Remove the roller to clean and lubricate If the roller does not turn freely it may restrict the film from advancing over the sound drum during self threading A dirty or restricted roller may also contribute to excess wow amp flutter To adjust the tensions of the pinch roller push the 2 film guide to self thread position a Insert two layers of 16mm film between the shoulders of the rubber pinch roller and lamp house casting b Locate pin 312 1736 so that it touches the bottom edge of the interlocking bracket c While pressing the rubber pinch roller toward the casting with film between the roller shoulders and casting tighten the screw that holds the pin bracket to the rubber roller shaft
19. Claw position incorrect Check amp adjust only See Sec 4 1 D2 2 Claw angle is incorrect 2 Check amp adjust See Sec 4 1 E Check amp adjust See Sec 4 1 D2 2 Worn cam follower or glid 2 Replace 1 ing pin x See Sec 4 1 B 39 Excessive noise when the still 1 1 Adjust Motor pulley misaligned 38 Insufficient framing 1 Claw position incorrect picture lever is depressed 2 Shutter pulley binding on the 2 Remove clean inspect and shaft lubricate See Sec 4 1 G 40 Film transport does not stop Shutter pulley seized 1 Remove cam tank clean amp in still picture operation lubricate pulley See Sec 4 1 G Still picture lever shoulder 2 Tighten screws screws loose See Sec 4 1 G 41 Film burns when still picture 1 Still picture lever not com 1 Fully depress lever is depressed pletely depressed 2 Heat filter misaligned or 2 Check realign or replace 2 2 J broken 42 No rewind or poor rewind 1 Take up spindle cork too dry 1 Remove and lubricate or tight See Sec 5 1 2 Broken or stretched or oily 2 Check and replace supply arm belt 3 Defective rewind gears 3 Inspect amp replace 4 Broken rewind arm tension 4 Check amp replace spring See Sec 5 6 5 Fake up pulley binding on 5 Clean amp lubricate the shaft 43 Noisy rewind 1 Rewind gears not fully en 1 Adjust the gear position gaged See Sec 5 6 2 Wor
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21. check the framing range with the projector running Fig 37 Fig 38 AFTER PULL DOWN 4 munia F Replacing The Claw 2 When replacing a worn or defective claw it is important to mount the claw correctly before securing the mounting screws Incorrect claw mounting may result in excessive film gate noise or unsteady picture 1 Correct Claw Pitch The International dimensions of the 16mm film Fig 39 0 0 90 0 05 1 83 10 01 1 27 0 02 7 620 0 015 100 frames 762 0 0 8 a he International dimensions of the 16mm film are shown in Fig 39 Claw pitch is set at 7 64 7 67mm A pitch less than 7 64mm will cause the claw to engage the film between perforations possibly causing film damage or unsteady pictures b A pitch more than 7 67mm will cause excessive gate noise Typical film perforation should have a pitch of 7 605 7 635mm but older films may have a smaller pitch due to shrink age c The claw as shown in Fig 40 has a 5 degree angle at the top tooth and should the claw pitch become larger than the pitch of the perforations this would help prevent any film damage Fig 40 N Series 4 1 E3 Adjusting The Claw Pitch a Moving the fulcrum control assy The ful crum control assy Fig 41 horizontally adjusts the contact point between the cam follower and the cam which in turn effects the claw pitch Moving the fulcrum control assy to the left decreases th
22. equalization network The signal is coupled to AN360 through capacitor Feedback to is accomplished through a select able network consisting of C18 R2 R3 R5 and C21 Position 1 and 3 of optical magnetic selector switch provides a linear response of IC1 Position 2 Switches in the magnetic playback equalization required Bass control VR 1 R8 C25 C24 and R9 form a low frequency boost and attenuation equalization network Treble control VR 2 and C22 C23 provide for high frequency boost and attenuation The signal from the tone controls is fed through to pin 2 of IC2 The output of IC2 is coupled through C7 to volume control VR 3 to pin 8 of through capacitor C28 Feedback for 2 isaccomplished through the network consisting of C8 R12 R10 R11 C27 and R16 From 1C3 the signal is fed to TR3 TR4 and TRS TR6 and act as complimentary final output drivers to an 8 ohm speaker through capacitor C13 Since this is a single ended common ground output Series 4 2 E so called O T L Output Transformer Less circuit care should be taken to avoid a ground loop condition which may result in amplifier damage when connecting the speaker ground to an external earth or electrical ground D Magnetic Record Models NST 3 amp NT 3 NST 3 amp NT 3 models with magnetic record use a special amplifier module which include the bias and erase oscillator circuits This circuit
23. inner guide rail is determined 35 by the side pressure spring 36 about 60 70 grams Excessive tension will cause early film 36 wear while insufficient tension causes unsteady picture The tension can be increased or decreased by slightly bending the spring A weak or incorrectly formed spring should be replaced 2 Adjusting hc Outer Guide Rail Position af Unless the gate plate has been removed or the outer rail has been replaced no adjustment should be required To adjust thread a SMPTE registration test film and align the center of the frame with the center of the aperture by ad Fig 459 justing the position of the outer rail t may also be necessary to rc position the claw See Sec 4 1 D B Film Shoe And Lens Holder Assembly INNER GUIDE RAIL eM 4 APERTURE PLATE OUTER GUIDE RAIL SIDE PRESSURE 3 Z SPRING x Wt 4 12 1 Film Shoe Fig 60 The film shoe assembly 2 consists of the film LEVER shoe 5 the threading release plate 6 and the AA shoe lock 3 The film shoe assembly is easily removable with the shoe lock for cleaning or The film gate assembly consists of the aperture replacement It is important that the shoe be plate 26 framing lever 30 inner 34 and outer kept clean and free to seat squarely against the 38 guide rails and the film gate plate 27 The aperture plate The threading release plate film gate as
24. or replace 2 Stretch or replace See Sec 5 4 B 3 Relocate amp check See Sec 5 4 4 Check amp tighten 5 Check 2 5 timing See Sec 5 4 6 Insufficient claw protrusion 6 Check or claw pitch See Sec 4 1 1 7 Broken claw 7 Check amp replace 8 Too much take up tension 8 Check amp lubricate take up spindle cork See Sec 5 1 9 Incorrect clearance between 9 Adjust clearance the loop setter gear and main See Sec 5 4 drive belt 10 Loop setter gear or main 10 Replace drive belt defective or broken 11 insufficient tension of the 11 Stretch or replace film shoe springs MECHANICAL SYSTEM SYMPTOM PROBABLE CAUSE 30 Film continues to flap ont l Loop setter gear shaft loop setter roller binding or tight in hub forward 2 Loop setter gear spring ten sion too strong 31 Lower loop 5 lost in 1 Reverse rubber roller is not reverse driving the fly wheel set collar 2 Reverse rubber roller binding 3 2 sprocket not transporting film 32 Upper loop is fost in 1 Damaged or poor film forward 2 1 sprocket teeth plate loose 3 1 sprocket shoe not seating properly 4 Loop setter roller continues to activate or activates er ratically 33 Upper loop is lost in Damaged or poor film reverse 2 1 sprocket shoe clearance is too great 3 Claw protrusion incorrect
25. shielding to the head or the head coil shorted to the projector s frame 6 Defective amplifier module E Distorted sound 1 Incorrect exciter lamp 2 Exciter lamp cover not com pletely installed 3 Amplifier module is defective 4 Defective speaker 5 Magnetic sound recorded poorly 6 Optical sound lens not aligned correctly on the solar cell See Symptom No 57 also Rubber pinch roller binding 2 Sound drum bearings defec tive 3 Reverse rubber drive roller in contact with the set collar 4 Fly wheel not installed 5 Flywheel rubbing on power cord 6 Incorrect alignment or ten sion of the tension guide and roller assembly the spring tension 2 Weak rubber spring pinch roller 234 7 Dirt on the sound drum or Series REMEDY 5 Check amp repair 6 Repair or replace See Sec 4 2 amp 3 2 i Check with another film 2 Check amp install 3 Check amp re connect property 4 Adjust See Sec 6 2 5 Repair 6 Repair or replace See 5 4 2 amp 3 2 Check amp replace 2 Check amp re install 3 Replace 4 Replace 5 Try a known good recording 6 Check amp realign See Sec 6 1 7 Check amp clean 8 Sce Symptom No 57 Check clean lubricate adjust See Sec 5 5 2 Check amp replace See Sec 5 7 3 Check amp adjust See Sec 5 3 4 Check 5 Check amp adjust amp m 6 Check amp
26. up of the projector to prevent any possible film damage In the reverse direction the set collar 6 is driven by iu the reverse rubber roller allowing the film to be transported smoothly across the sound drum in the reverse direction Fig 4103 104 105 Adjustments The drive torque to the flywheel is determined by REVERSE the tension of the plate spring 8 The normal BRACKET m REVERSE RUBBER torque should be between 20 25 grams To ROLLER check this use a gram scale and attach a string to SPRING Fig 106 the with SPRING SCALE adhesive tape With ilm in ro 20 25 GRAMS no MIEN 2 jector switch to 1 I SWITCH x REVERSE reverse while hold 2 ing the gram scale attached to the string To adjust this torque remove MAIN DRIVE the plate spring and bend to obtain N the correct tension A badly formed spring should be replaced Fig 4106 FIBRE WASHER Fig 105 us SOUND DRUM SHAFT SET COLLAR J Fig 103 WASHER G1 080100 7 G2 080100 314 6 SOUND PICK UP SYSTEM 6 1 OPTICAL SOUND FOCUSING PROCEDURE A Description Models 5 0 NT 0 NST 7 and NT 1 are optical sound playback only Models NST 2 amp NT 2 are both optical and magnetic playback and NST 3 amp NT 3 are optical playback with magnetic playback and record The optical pick up system resembles a sm
27. 0 nm 2 Set up Procedure W Series 6 2 B 2 Fig 2115 a Open the lamp house door b Remove the frame casting to obtain access to the magnetic head Thread a magnetic azimuth alignment 1081 film d Set the Mag Opt switch to the Mag Play position e Connect the projector to a dummy load resistor and test set up See Sec 6 1 B 3 Fig 113 Turn on the projector and amplifier 8 Set the treble control to the Max position and the bass at the Minimum h Adjust the volume control to just before the amplifier clips i Carefully loosen the adjustment screw which allows the head to be positioned on the mag track To adjust hold the mag head gently with thc pliers and slightly turn the head clockwise or counter clockwise until the correct head position on the mag track is obtained Then align the head core slit right on the mag track by slightly bending if necessary the head mounting arm to the right or left When the correct head position and the angle are obtained a maximum voltage reading will be indicated on the AC VTVM while at 63 the same time the sine wave observed c the oscilloscope is not clipped j With the Oscilloscope connected across t load resistor observe that the 7000Hz sir wave is not clipped or unusually distorted both low and high volume lf necessar make additional minor adjustments When a clean undistorted sine wave at ma mum voltage is achieved
28. 11 parallel to the main drive belt with proximately 0 5 to 1mm of clearance The belt must ride flat with respect to the gear If not the tension gear and arm assembly is not aligned correctly Jo correct this condition it may be necessary to reform the tension gear arm With the belt and gear parallel the loop setter roller is adjusted to the 7 30 position by loosening the arm position screw 10 While holding the gear in place adjust the arm position and secure the screw Operate the projector without film If the loop setter rotates more than once with a small amount of upward pressure the spring 12 tension is too loose Remove the spring and slightly stretch or replace it Re adjust and test again C LoopSetter Timing Correct timing is required for proper operation of the loop setter Set the projector to self thread urn on the projector and insert a 2 3 meter strip of good film When threaded release the threading mechanism Observe the loop setter should only rotate once Continued rotation indicates too small a lower loop Too large a loop will not reset the loop when missing or damaged sprocket holes are present The size of the lower loop is determined by the relationship between the claw and the 2 sprocket drive 2 SPROCKET COVER SCREW 50 To increase the lower loop size stop the projectc loosen the 2 sprocket cover screw slightly rota the sprocket teeth plate counter clockwise Fi 78 To de
29. 15mm or 005 thick Series 2 2 C No 320 01 Cam Claw Protrusion Tool see sec 4 1 0 SMALL LARGE V NOTCH A V NOTCH 797 g el C Test Equipment A limited amount of test equipment is required for routine maintenance and modular replace ment However when servicing the individual modules such as the amplifier the following equipment and test films would be essential a Oscilloscope Audio AC Wow amp Flutter Meter 400Hz SMPTE Test Film 3150Hz Wow amp Flutter SMPTE Test a gt 000 wT 2000 Vom Voltage Ohm meter Film Multi Frequency SMPTE Test Film 7000Hz Sound Focus SMPTE Test Film 7000Hz Mag Azimuth SMPTE Test Film Buzz Track SMPTE Test Film Audio Oscillator 2 3 LUBRICANTS amp LUBRICATION CHARTS Apply a few drops after every 500 operating hours The items marked with would require more frequent lubrication CAUTION DO NOT OVERLUBRICATE Fig 1 25 24 SUGGESTED SUGGESTED EIKI EM DESCRIPTION LUBRICANT PART ITEM DESCRIPTION LUBRICANT PART 1 Sprocket Hub Petroleum 5631 15 Take Up Pulley Cork Silicone 5625 Oil Liner Grease 2 Sprocket Hub Petroleum 5631 16 Loop Setter Shaft Petroleum 5631 Oil Oil Duracon Guide Rollers Silicone 5629 17 3 Film Guide Pivot Pin Silicone Oil 5629 100 100 Duracon Guide Rollers Silicone Oil 5629 18 Tension Guide Roller amp Silicone Cit 5629
30. 2 Straighten the lead end 1 Replace 2 Replace 3 Chegk amp adjust See Sec 5 5 B4 4 Straighten the lead end 1 Remove amp inspect the cast ing guides 2 Check amp adjust See Sec 5 5 B5 3 Check adjust and lubricate See Sec 5 5 B5 1 Remove the lamp house tast ing and inspect 2 Tighten and re time See Sec 5 4 3 Check for correct film feed ing from the sound drum to the 2 sprocket See Sec 5 5 6 4 Check and adjust See Sec 5 5 7 1 Tighten and check timing See Sec 5 4 2 Check amp replace See Sec 5 5 B7 1 Check amp adiust See Sec 5 5 B 2 Lubricate pin linkage See Sec 5 5 B 1 Check amp adjust and adjust 2 Stretch or replace the film leader SYMPTOM Pilot lamp on motor runs but film does not advance 20 Film speed is too slow too fast ele Film comes out of the near the sound drum 24 Excessive take up torque in forward 23 24 Excessive take up torque in reverse 25 forward 26 Take up poor or not at all in reverse Take up poor or not at all in MECHANICAL SYSTEM PROBABLE CAUSE 1 Still picture lever engaged 2 Broken or defective motor belt 3 Cam tank plate washer loose 4 Motor puiley loose 5 Main drive belt broken 1 Belt is installed incorrectly 2 Incorrect motor and shutter pulley combination ade de
31. CREW CAM CLAW FILM SHOE PUSH PLATE SAFETY ARM ASSY CAM CLAW PUSH PLATE LOOP SETTER GEAR Fig 84 42 FILM FC GUIDE V X 5 f re foi THREAD 2 FILM GUIDE Pinch Roller amp inc Main Interlocking Bracket MAIN INTERLOCKING BRACKET 3 ce SOUND DRUM RUBBER PINCH ROLLER B4 N Series 5 5 2 shoe wears the clearance will become too great requiring replacement When a replacement is not available the small protrusion which determines the clearance may be filed to the correct clearance B Adjustments 1 1 Sprocket Shoe Assembly The 1 sprocket shoe is spring loaded to keep the film in contact with the sprocket teeth driving the film into the gate For manual thread it may be opened when the lens holder is open Check the shoe clearance using three layers of film in the following man ner First insert one Scm 27 strip of film into the film channel advance the mechanism using the inching knob When the first strip is fed through the film shoe insert another strip on the first continue to advance the inching knob With two thicknesses of film the shoe should not begin to open Next insert a third strip and advance the inching knob This time the shoe should slightly open with three layers of film between the sprockets and the shoe Fig 86 NOTE A simple test film may be
32. R SPRING ECCENTRIC SHAFT When the rewind lever 24 is engaged the eccentric shaft 25 rcleases the pressure to the cap screw 38 causing the rewind gears 45 and 49 to mesh thus positively driving the supply arm o 98 N UPPER Fig 101 E gt Me VER 21 e X Ao CAP SCREW BRACKET 5 7 SOUND DRUM AND FLYWHEEL A Description The sound drum and flywheel assembly s main function is 10 stabilize the film allowing the sound optics or magnetic head to read the sound tracks with a minimum of speed variations The sound drum shaft bearing and flywheel are precision machined and balanced to maintain a consistent lincar film speed Care should be used when dis assembling or re assembling these precision parts 59 The sound drum shaft 5 is seated in two precision Fig 104 ball bearings 3 which are sealed and factory 14 12 lubricated The ball bearings are lightly press fitted into the sound hub casting 2 The shaft is secured in place by a set collar 6 With the fiber washer in place with no end play in the sound drum shaft it must rotate freely and not bind Any binding or 19 imperfections in the ball bearing will result in excessive wow amp flutter In the forward direction the sound drum shaft 5 is driven by the tension E of the film The flywheel is free to slip on the sound drum shaft during the initial start
33. Remove the two phillips screws one at each end of the amplifier The amplifier can now be removed by sliding out re install reverse the procedure above Be sure that the indicator on the controls lines up and all the connectors are secured Fig 25 3 3 MOTOR MODULE Remove motor belt Disconnect motor nylon connector s Unscrew 3 screws Remove motor module Motor modules are exchanged less pulley To re install reverse the above procedures Motors with plastic fan housings use the ground strap NST after S N 10484 and NT after S N 18550 with metal fan housing 320 12141 the ground strap has been omitted GROUND STRAP FOR PLASTIC FAN HOUSING OF EARLY PRODUCTION Fig 26 4 Q3 tn 4 3 4 TRANSFORMER MODULE 1 Unplug nylon connectors 2 Unscrew 3 screws 3 To re install reverse the above procedures Care should be taken that the wires are routed 3 away from any moving parts of the projector 3 5 LENS AND GATE MODULE 1 Swing open the gate and remove the lens Anti theft screw on U S A models 2 Remove the two phillips screws 40 securing the film gate assembly to the main casting Fig 29 26 N Series 3 5 Fig 28 To re install the film gate assembly follow the reverse procedure It is also necessary to check and adjust the claw travel in the aperture plate assembly See section 4 2 claw position an
34. T after S N 10674 are supplied with 36 AC standard and 40V AC optional 5 Sec 4 4 TRANSFORMER MODULE Dual diodes 51 and S2 form a bridge rectifier filtered by capacitor C44 providing the amplifier approximately 56V DC or 50V DC The 8V AC transformer secondary winding supplies AC exciter lamp voltage through pins 4 and 5 of the 9 pin socket Dual diodes 53 and 54 form a bridge rectifier which 15 filtered by capacitor C14 C15 and C16 are ripple filters regulating the base input voltage to TR 1 s base R 32 is a current sense resistor serving as feedback to the base of TR 2 through R 29 TR 2 is a protector for this regulating circuit 1 is the DC regulator for the approximately 3 5 volts to the exciter lamp routed through pins 8 9 of the 9 pin socket In 2 type magnetic playback the exciter lamp voltage is switched off while in 3 type magnetic playback this switch is not provided C Audio Amplifier Circuit The input signal from the solar cell or magnetic head is accomplished through respective miniature jacks in the top of the amplifier chassis See Fig 47 Fig 47 SP J for Front Cover Speaker Sa ly QU S s G ri gt ku H ed M D U Y gt TES 0 56 7 24 fos OVC fee 14 74 Coup AY R46 presents a 1OK impedance load to the solar cell in optical playback C42 R50 R54 and C48 for the input
35. TION ROTARY SWITCH Fig 17 33 Fig 18 LOOP SAFETY ROLLER ARM 2981 2 4 TROUBLE SHOOTING HINTS A There are four basic steps to trouble shooting this projector a Analyze the symptom b Localize the trouble to a functional system or module c Replace or repair that system or module a Isolate the trouble within the module b Locate and repair the specific trouble B Checking Semiconductors With A VOM a Set the ohms scale to R x 10 b The forward resistance should be low c The reverse resistance should be high TRANSISTOR NPN TYPE 2SC 2SD Fig 19 Fig 20 OSCILLATOR MIC INPUT 24 AMP UNDER TEST C EXTENSION CABLE TO PROJECTOR N Series 2 4 D Fig 21 DIODES PON oN HIGH x x NOTE Forward and reverse resistance LOW amp HIGH is only a suggested quick and easy check of components out of circuit This test is only for shorted and open junction test A VOM will not test the quality of a semi conductor accu rately IC s are best checked by checking the signal input and output condition This cam be done by inserting a low level audio tone into the MIC jack and the signal path from the input of IC 1 through 2 and to 3 Amplifier test cables can be easily made from locally available parts A nine pin miniature tube socket and male plug can be wired as an extension power cable allowing the amplifier to be operate
36. W t4 gt A AE pi T a VEA 1024 f gt J 314 8 ELECTRICAL SYSTEM 8 1 ELECTRICAL SYSTEM A Function Switch Micro Switch SW 1 V 15 1A3M SW 2 V 15 1A3M SW 3 V 15 1A3M SWz4 V 15 1A3M SW 5 V 15 1A3M Wire Color Type Type of Switch amp Part 312 6005 1 3712 60051 312 60051 312 60051 312 60051 Genes 8 1 B Function Forward Reverse Reverse Lamp Low l amp High Connected to 1 Brown AWG 20 5 Motor 6 Pin Connector 1 2 Brown AWG 20 AC Terminal 1 3 White AWG 20 Motor 6 Pin Connector 2 4 Grey AWG 20 Motor 6 Pin Connector 5 5 Blue AWG 20 Motor 6 Pin Connector 4 6 Blue AWG 18 Transformer 3 Pin Connector 2 7 Red AWG 18 Transformer 3 Pin Connector 1 8 Red AWG 18 Halogen Lamp NOTE 1 For 120V UL amp CSA only wire 1 15 AWG 18 NOTE 2 For 220V SCAN type wire 2 is connected to AC Terminal 2 NOTE 3 For 220V SEMKO type see pagc 78 a Common b Normal open c Normal close B Electrical Circuit Diagrams Electrical Schematic Electrical Block Diagram See the end of this manual 314 9 SERVICE UPDATES AND MODIFICATIONS Serios EIKI N Series has had several modifications All the important modifications are included and discussed in this manual Further modification after the issue of this manual will be covered by SERVICE UPDATES which are recommended to be filed in this section
37. ack Black 8 Black Black 9 Red Red MALE Fig 53 4 4 B Later Production Applicable on NT S N 26136 and up NST S N 10674 and up 52 SPEC SPEC es 100V 200V LAMP ey 77240 4 7 ogy 220V NF 0 HALOGEN LAMP HI LOW Later Production 9 Pin Nylon Connector Male Fig 54 Applicable on NT S N 26136 and up NST S N 10674 and up Pin Color of Wire Color of Wire Color of Wire for 100V for 110V for 120V 120V 220V type only UL amp CSA 240V types 1 Brown Brown Brown A Yellow Grey Yellow 3 4 Orange Orange Orange 5 White White White 6 Red Red Red 7 Black Black Black 8 Black Black Black MALE Fig 54 41 N Series 4 4 B NOTE Transformers of later production are supplied with the 36V tap connected change to the 40V tap extract pins 4 6 and insert the orange wire into 6 hole and the red wire to 4 hole NOTE The transformer with AC 36V amp 40V taps is identified by the following part numbers 314 60201a Transformer 120V 314 60301a Transformer 110 314 60401a Transformer 220 240 314 60801 Transformer 220V FEMKO type 314 60951 Transformer 220V 5 type 314 60981 Transformer 110 220V Dual Voltage 314 60991 Transformer 120 240V Dual Voltage 3 Pin Nylon Connector Female Fig 55 for all types Fig 55 3 Pin Nylon Connector Male Fig 56 f
38. ading or removal and may possibly puncture the film between the perforations during self thread The clearance between the No 1 film shoe and the lens holder should be no less than three film thickness Fig 63 To adjust open the lamp house door and loosen two set screws behind the gate plate 29 of Fig 58 and Fig 63 and slightly turning the upper and lower pivot screws 28 of Fig 58 and Fig 63 adjust the lens holder s position to obtain the correct clear ance The pivot screws should be snug against the lens holder Fig 63 LOWER PIVOT SCREW 45 a o 9r 314 5 GENERAL MECHANICAL SERVICING AND ADJUSTMENTS 5 1 TAKE UP ARM ASSEMBLY A Description Fig 64 amp 65 The drive to the take up arm is obtained through the take up clutch mechanism Items 11 12 and 13 In forward and rewind the clutch cam 12 is engaged driving the belt and take up pulley 18 a clockwise direction for normal film take up In reverse the clutch cam 12 is disengaged re moving all drive to the take up pulley 18 The amount of torque required to take up a film is proportioned to the weight and diameter of the reel As the weight of the film pack increascs the friction between the spindle assembly 14 and the take up pulley 18 increases to provide the neces sary torque to take up reels up to 2000ft or 600m B Adjustments 1 The take up torque The take up torqu
39. al projector within a projector consisting of a light source a lens an image and a screen or target Fig 107 Lee LAMP BRK LENS SOUND TRACK AMP K SP SOLAR CELL i VOLUME The light from the exciter lamp is focused through the sound track imaged onto the target solar cell where varied light intensity is converted into minute electrical voltage changes that are amplified and converted into acoustical variation or sound which directly relate to the photographic variation recorded on the film B Sound Focus Alignment Procedure 1 Tools and Equipment Required a Screw driver set Iso b Sound lens adjustment tool Tool 320 02 Fig 108 See note below SMPTE sound focus test film 7000Hz SMPTE buzz track test film AC VTVM audio range and or Oscilloscope 8 ohm 30 watt dummy load resistor External speaker front cover wQ 0 3200 Fig 108 Series 6 1 3 2 Set up Procedure a Open the lamp house door and remove the exciter lamp cover b Remove the lamp house door with frame cast ing to obtain access to the sound lens Fig 109 EXCITER LAMP CLAMP SCREW LENS HOLDER SOUND LENS c Insert the tool No 320 02T onto the larger barrel of the sound lens and tighten the set screw on the tool Fig 110 320 02T SOUND LENS ADJUSTMENT TOOL SOUND LENS BARREL NOTE This adjustment may also be performed b
40. ck amp replace Replace or repair See Sec 3 2 amp 4 2 Locate amp repair or replace See Sec 4 4 48 No sound exciter lamp ison 1 Amplifier volume is too low Check amp adjust 2 Mag Opt switch in the wrong 2 Check amp switch position NST NT 2 3models only 3 Rear cover speaker not 3 Check amp connect plugged in not applicable on NST NT 3 models or exten sion speakers not connected 4 Defective rear cover speaker 4 Repair or replace Or extension speaker or speaker jack 5 Amplifier fuse blown Replace 6 Defective solar cell or con 6 Repair or replace nections See Sec 4 2 7 Dirt or foreign object in the 7 Clean optical sound lens Defective amplifier module 1 Amplifier is not turned on 2 9 pin amplifier plug defective 3 Defective exciter lamp 4 Defective exciter lamp socket S Exciter lamp fuse blown 6 Defective amplifier module 7 Defective exciter lamp power supply of the transformer un 8 Locate amp repair or replace See Sec 3 2 amp 4 2 1 Incorrect or defective exciter 1 Check amp replace lamp or sound lens 2 Dirty exciter lamp or sound 2 Clean or replace lens or dirt foreign object in the optical sound lens 3 Sound optics incorrectly 3 Check amp re align sound 49 Poor sound or low volume aligned system See Sec 6 1 4 Low exciter lamp voltage or 4 Check amp repair am
41. consists of T1 and oscillator transistors TR8 and TRY In magnetic record the Mag Rec selector switch set to the No 3 position Audio from the speaker jack 14 is routed through the capacitor resistor network C 38 and R 41 to the magnetic record head At the same timc bias and crase current is supplied from the bias oscillator to the combination magnetic playback record and erase head E Amplifier Circuit Diagrams 1 series Amplifier Diagram Sce the end of this manual 273 3 2 79 2 N series Amp Board Block Diagram See the end of this manual P 74 3 series Amp Frequency Response See next page Fig 48 of ate A SS ns 72 SW 1 E 1 t S AUX J C42 orange 5 gt PHONO J o Shield 0A 9 6 29 47K R42 IK MIC J 7 x S 2 2 es 9 m c P3 2 i ple E f E S gt T 2 3 S 100 I 3 qid d Ria YO OPT 1 1 NF Q00 2 8 b Ve k Q EAI 9 08 Ce 23 4 33K 2 E isuu ON aT 246 lt s 4 e ZIN EG to eraser 98 N Series 4 2 3 Series Amplifier Frequency Response NOTE This is one of the typical patterns and the figure may vary slightly with each projector P
42. crease the loop rotate the sprock teeth plate clockwise Fig 79 Tighten the cov screw Unthread the projector re thread release the threading mechanism It may requi several repeat adjustments to achieve appro mately 5mm of clearance between the loop and tl loop setter roller Fig 77 Correct timing w result in one loop setter cycle when two successi damaged sprocket holes or a bad splice pass throu the gate In some cases continuous cycling of tl loop setter may be caused by very poor film or too strong a take up tension Excessive tak up tension may cause the film to skip over the 3 sprocket drive resulting in lower loop loss S Sec 5 1 TOO SMALL A LOWER LOOP Fig INCREASE LOTES AURI TOO LARGE A LOWER LOOP Fig e TO DECREASE EEL gt 5 5 SELF THREADING MECHANISM A Description The self threading mechanism is activated by push ing the 2 film guide 12 into the thread position locking the interlocking bracket 14 to the release bracket 8 At the same time the 1 film guide 1 is extended from behind the casting to guide the film into the film gate white forming the upper loop The film shoe is released by plate 8 and the claw is re tracted out of the gate by plate 7 Film guide 2 12 lines up with guide 3 22 and the rubber pinch roller 33 is released from the sound drum The loop setter is locked out b
43. d severely leader not trimmed properly 2 Leader is severely curled twisted or too soft 3 Too much 1 film shoe clearance 4 Dirty and obstructed film gate 5 Insufficient side travel of the inner guide rail 6 Side pressure spring tension toe strong Film shoe is not retracted during threading n R ep 4 1 2 3 4 5 1 Re insert the film correctly Align or replace Series REMEDY Re position and tighten Sec 5 5 4 Check amp adjust See Sec 5 5 Check 4 adjust See Sec 5 5 B1 Check alignment of the ten sion guide rollers See Sec 5 5 B6 Check with another film leader Trim and repeat threading Straighten and re thread Replace leader Re align and check See Sec 5 5 2 Re align and check See Sec 4 5 See Sec 4 5 2 Tighten See Sec 4 5 3 1 2 3 4 5 6 5 Trim and re thread Trim Trim straighten or replace Check amp adjust See Sec 5 5 B1 Clean amp check Check adjust See Sec 4 5 Check amp adjust See Sec 4 5 Check amp adjust See Sec 4 5 SELF THREADING SYSTEM SYMPTOM PROBABLE CAUSE 11 Chattering noise during 1 Claw is not completely threading retracted 12 Clicking noise during thread 1 Claw is hitting the shut
44. d framing 314 4 MODULE REPAIR AND ADJUSTMENTS 4 While holding the shutter blade 46 slowly raise the still picture clutch releasing the tension of the clutch spring 12 and shutter 4 1 CAM TANK MODULE A Specifications Revolution blade with hub 24 FPS 1440 RPM 5 Remove the shutter blade and hub assembly 18 FPS 1080 RPM 6 Position the still picture clutch where it exposes Cam Claw Protrusion MIN 1 0mm MAX 1 2mm 040 to 045 7 64 7 67mm 7 1 2 1 25kg all three cam tank cover screws 45 Remove the screws and cover plate assembly The curved plate spring 24 fits over fulcrum control pin Unscrew the screw 22 and remove curved plate spring Unhook the claw lever spring 36 and remove claw lever assy 28 To remove cam 10 and cam piate 9 un Claw Pitch Tension of Claw Lever Spring 312 11161 NOTE Tension of Claw Lever Spring is meas 8 ured with a tension scale pulling on Cam Claw and the Claw Lever Spring stretched to maxi 9 mum screw the three set screws 11 B Disassembly of Cam Tank Fig 30 amp 31 10 To remove cam shaft assy 4 remove inching 1 Set the still picture clutch to the still position knob 8 and worm gear 7 with the shutter pulley 50 rotating freely 11 To replace the cam tank bearings the inner 2 Unscrew 53 at the end of the cam shaft and bearing is pressed on the cam tank shaft and is shutter pulley 50 replaced a
45. d away from the projector The solar cell and exciter Jamp connection can also be extended if so desired Fig 22 SPEAKER N Series 314 3 MODULE REMOVAL AND INSTALLATION PROCEDURE 3 2 CAM TANK MODULE TRANSFORMER MODULE Fig 23 MOTOR MODULE AMPLIFIER MODULE 3 1 CAM TANK MODULE 1 Unplug the projector and open the rear cover 2 Remove the 3 transformer mounting screws and unplug the transformer See Sec 3 4 3 Remove the motor belt 4 Remove the main driving belt by releasing the tension gear 5 Retract the claw by turning the inching knob 6 Open the lamphouse and remove the lamp and holder assembly by unscrewing the knurled nut 7 Unscrew the two cam tank mounting screws 8 Remove the cam tank slowly and carefully Care should be taken to avoid damaging the claw by striking it against the main casting 9 Re installation can be done by the reverse procedure Care should be taken that the cam tank worm gear and main drive fiber gear do not bind A small amount of gear lash is required to prevent abnormal wear 10 To check the timing and claw adjustments refer to Sec 5 1 and 6 3 25 3 2 AMPLIFIER MODULE Remove the fly wheel Unplug the rear cover speaker cord Remove the volume bass and treble knobs NOTE on magnetic models remove the mag opt knob Unplug the MT 9 plug Unplug the solar cell and magnetic lead miniature plug
46. drive consists of the sprocket cover 48 the sprocket teeth plate 47 the sprocket drum and shaft 46 the hub and bushing assembly 50 and the drive gear 52 There must be end play of the sprocket drum shaft in the bushing Small fiber washers G4 070120 G8 070120 are installed to achieve this condi tion The sprocket plate 47 must be in good condition with no defective sprocket teeth 58 N Series 5 5 7 otherwise it must be replaced For correct timing adjustment of the 2 sprocket drive assembly refer to the 5 4 The 2 sprocket shoe keeps the film in contact with the sprocket teeth The shoe should always remain closed on all self threading projectors The shoe tension is maintained by the V spring 55 is important to note that the 2 sprocket shoe spring is stronger than the 1 sprocket shoe spring The proper clearance between the shoe 53 and the sprocket drum 46 is very important To test this clearance take short piece of film and feed it into the 2 sprocket using the inching knob to advance the projectors mechanism Add another strip of film on top of the first and advance the projector With a double thickness of film the film shoe should not begin to open Add a third layer of film and advance the projector This time the film shoe should begin to open indicating that the shoe clearance is correct NOTE A simple test film may be made by cementing t
47. e 3 Check amp repair See Sec 5 3 4 Tighten knurled nut See Sec 5 3 y Series MECHANICAL SYSTEM SYMPTOM PROBABLE CAUSE REMEDY 27 Weak back tension of the supply reel in forward 1 Reverse clutch cover pulley 1 Check amp adjust replace binding and clutch cam is not See Sec 5 3 releasing or clutch cover pulley defective 2 Clutch cover pulley has no 2 Check amp adjust end play on the 1 sprocket See Sec 5 1 drum shaft 3 Clutch cam seated incorrect 3 Check amp reposition or re or defective place See Sec 5 1 4 Clutch cam binding between 4 Check amp adjust clutch cover pulley and spacer ass A 4 28 Weak back tension of the take up reel in reverse ee a Check amp clean or adjust See Sec 5 3 1 Drive gear is binding or has no end play on the drive pulley shaft 2 Clutch cam seated incorrect or binding between drive gear and clutch cover assy or defective clutch cam 3 Drive gear or clutch cover defective 2 Check amp reposition See Sec 5 1 3 Check amp replace 29 Loop setter roller continues to activate or activates er in forward 1 Damaged or poor film 2 Insufficient gear spring ten sion 3 Loop settee roller in the wrong position 4 2 sprocket plate loose 5 Lower loop is too small 1 Repair
48. e cork disc 17 spring 20 and the adjust ment of the knurled nut 22 In reverse the motor reverses direction engaging the reverse drive clutch 18 and the reverse belt drives reverse pulley 19 which is clutch coupled via the cork disc 17 to drive the pulley 8 and spindle 23 providing reverse film take up In rewind the drive to the supply arm is accom plished through upper and lower rewind gears which are engaged when the rewind lever is in the rewind position Fig 69 amp 70 Fig 69 TENSION SPRING KNURLED REVERSE CLUTCH COVER FIBER GEAR Fig 70 REWIND Fig 68 t MD F baa 48 Ne B Adjustments The supply spindle should be lubricated with petroleum oil see lubrication chart The belt must be clean and free from oil or dirt Oily belt may result in poor rewind The knurled nut 22 adjusts the back tension to the supply reel too little back tension will result in uneven or jerky film feed and weak reverse take up tension Adjusting the knurled nut effects both the reverse take up and the supply tension Correct adjustment will be a compromise 5 3 REVERSE PROJECTION A Description Fig 71 In reverse the motor rotates in a counter clockwise direction engaging the reverse take up clutch cam 19 which in turn drives the clutch cover pulley 18 driving the reverse belt At the same time the main drive belt drives the reverse rubber roller 15 of Fig
49. e is automatically controlled the weight and size of the film pack how ever for this to function properly it 15 essential that the take up pulley 18 be well lubricated and free running on the bushing The cork liner N Series 5 1 B in the spindle assymbly 14 must be well lubricated to provide a smooth even take up Excessive take up tension is caused by insuffi cient or improper lubrication of the cork liner Weak or no take up may be caused by a worn cork liner or oily belt Refer to lubrication chart for proper lubrication Fig 64 PULLEY SPINDLE PIN CORK LINER TS 15 16 17 Fig 65 2 Take Up Clutch Mechanism The take up clutch mechanism requires no lubri cation The clutch cam 12 clutch cover 13 and drive gear 11 should be kept clean and free from dirt A small amount of silicone oil on the drive pulley shaft is sufficient see lubrication chart When re assembling the clutch mecha nism it is important that the clutch cam be positioned correctly A space of 0 2mm is required between the drive gear and clutch cover Fig 66 amp 67 Fig 66 ORIVE GEAR CLUTCH CAM DRIVE GEAR d CLUTCH CAM CLUTCH COVER DRIVE GEAR 5 2 SUPPLY ARM A Description Fig 68 During forward the supply arm only serves as a drag to provide a small amount of back tension N Series 5 2 A to the film The amount of back tension is controlled by th
50. e pitch and moving it to the right increases the pitch Fig 41 CLAW LEVER CAM CONTROL ASSY CAM FOLLOWER b The fulcrum contro assy should only be moved slightly Too much adjustment will cause the claw to hit the sides of the film perforations causing film jitter c Correct claw angle is shown in Fig 42 A Under some circumstances a bent claw lever as shown in Fig 42 B and 42 C may have to be corrected by straightening out the claw Fig 42 Claw Lever Tension See Fig 41 The claw lever tension force should be from 1 2 to 1 25kg when the spring is stretched to the maximum travel of the claw lever arm If the tension is too weak the cam follower may float off the cam surface causing excessive gate noise and an unsteady picture On the other hand if the spring is too strong the cam follower may wear out prematurely ot cause a slight hesitation of the claw lever when the projector is initially started To obtain the correct tension it may be necessary to replace the spring A slight adjust ment can be made by stretching the spring if necessary Changing Shutter Blades Fig 43 UPPER GHOST LOWER GHOST Two three and five bladed shutters can be mounted on the shutter pulley The mounting holes used to secure the blades to the pulley allow a small adjust ment for shutter blade timings Incorrect shutter timing results in what is commonly called travel ghost The adjustment 15 accomplis
51. eed 40 gt Sound 50Hz 24fps speed N Series 4 3 D To allow the projector to be operated at either 50 or 60Hz sound only it is necessary to change the motor pulley and the cam tank pulley Shutter Pulley It is now possible to change frequency by simply shifting the motor drive belt The chart below indicates each speed combina tion NOTE For Dual Voltage models such as 110 220V or 120 240V 50 60Hz the com bination 15 110 220V 120 240V 50 60Hz 50 60Hz Shutter Pulley 312 11901 312 11901 Motor Puiley 314 1299 314 1298 Speed Change Combination Chart 50 60Hz Sound Sound Sound amp Silent 24fps amp 24fps 312 11901 24fps amp 18fps 3 12 1 1801 312 12911 314 12971 N Series 4 4 TRANSFORMER MODULE A Transformer Circuit Diagram Earlier Production Applicable on NT S N 10001 26135 NST S N 10001 10673 Fig 51 EXCITER LAMP SPEC SPEC 100V 200V amp PILOT aD de 2 120V 110v AMPLIFIER 220 100V gy Y HALOGEN LAMP Hi LOW B Connector Wiring Code Earlier Production 9 Pin Nylon Connector Male Fig 53 Applicable on NT S N 10001 26135 NST S N 10001 10673 Pin Color of Wire for 100V 120V 220V Color of Wire for 110V type only 240V types E Brown Brown 2 Yellow Grey 3 4 5 White White 6 Red Red 7 Bl
52. hed using the SMPTE test film and adjusting the blade position for minimum upper or lower image movement as shown in Fig 43 Since the adjusting screws are only accessible with the cam tank removed this becomes a trial and error adjustment However the skilled technicians can accomplish this in one or two adjustments When mounting the 2 blade shutter the missing semi circle on the hub must be positioned toward one of the blades The curved edge of the blade faces away from the cam tank See Fig 44 45 Fig 44 PHIME BLADE N Series 4 1 F MISSING Fig 45 SEMI CIRCLE INCORRECT INCORRECT NOTE 3 BLADED SHUTTERS WILL AUTOMATI CALLY LINE UP CORRECTLY G Still Picture Clutch The still picture clutch consists of the shutter pulley 50 the shutter blade and hub 46 and the still picture clutch lever 55 and tension spring 12 The friction between the shutter blade hub s coned surface and the coned surface of the shutter pulley is maintained by the tension spring 12 when the still picture clutch is in the up position driving the cam tank and the rest of the projector mechanism In the down position the still picture lever releases the spring tension slightly separating the shutter blade hub and the shutter pulley To adjust the still position clearance spacer 54 may be added or deleted as necessary Lubricate the bushing with a small amount of molybdenum disulfide grease In
53. hree short strips of film together See Sec 5 5 B 1 Note Fig 98 Gem 3cm Bem 4 x i e loop setter section in EXE The proper film shoe clearance is determined by a small protrusion molded on the shoe which indexes the shoe against the bushing hub 50 Fig 99 FILM SHOE PROTRUSION 53 As the shoe wears it may be necessary to replace it to obtain the correct clearance In some cases the shoe clearance may be reduced by filing the protrusion _ CAUTION Too close a clearance will result in poor threading or possible film damage Series 5 7 A 5 6 REWIND MECHANISM m A Description Fig 100 101 The amount of gear lash is determined by the cap rev screw 38 The tension of the rewind lever is con trolled by the spring 37 The rewind gears 45 and 49 must mesh completely with only a slight amount of lash to avoid unnecessary wear It is important that all the gears roll freely with a slight amount of silicone oil on the shaft The rewind bracket assembly should also operate freely on its pivot shaft 33 B Adjustments The rewind is accomplished by threading the film from the take up reel to the supply reel and engaging the rewind gears by pressing down on the rewind lever then switching the projector to the forward rewind position Fig 100 Fig 102 REWIND ES REWIND TENSION GEA
54. l screws should be firmly tightened to assure reliable projector operation after re assembly When lubricating the projector s plastic parts silicon oil or grease should be used Other types of lubricants may harm plastic parts Avoid using any solvents such as Trichloroethylene which will harm most plastic or painted parts EIKI projectors require a minimum of special tools The most important is an ordinary ISO Phillips screw driver set To avoid damage to screw heads it is important to remember the adage 70 push 30 turn t is also important to select the right size screw driver blade A rule of thumb is to use the largest blade possible To avoid possible electrical shock always dis connect the projector from the power source when servicing 2 2 TOOLS AND TEST EQUIPMENT A Tools When servicing EIKI series ordinary ISO Phillips type screw drivers and single bladed screw drivers should be enough EIKI screw driver kits P N 5615 are availa ble A Molex extractor tool is most useful when replacing the pins of Nylon connectors to the transformer or motor B Special Tools N series have been designed so that no special tools are required to service the projector However a common claw protru sion gauge Tool No 320 01T is most helpful for accurately setting the claw pro trusion Standard 16mm film may be used as a thickness gauge where necessary Most film is about 0
55. lable in voltages of 100V 110V 120V 220V and 240V 110 220V and 120 240V dual voltage models are also available To complv with electrical safety regulations of various countries UL USA CSA Canada VDE Germany SEV Switzerland SAA Australia SEMKO Sweden NEMKO Norway FEMKO Finland DEMKO Denmark specific models are N Series 1 4 manufactured to meet such regulations including the option of 50Hz 60Hz 50 60Hz operation Power transformers vary according to the voltage range and also to the various electrical safety requirements The secondary windings of all trans formers provide 8V AC to the Pilot Lamp and Exciter Lamp circuits 24V AC HIGH and 22V AC LOW to the Halogen Projection Lamp and 40V or 36V AC to the Amplifier See Sec 44 TRANSFORMER MODULE Motor ON OFF and Lamp ON OFF and reverse is controlled by the Function Switch which consists of a Cam and 5 micro switches The projection lamp is a Halogen ELC type 24V 250 watt The High Low position will extend the lamp life depending upon operating conditions NOTE The Halogen Lamp EJL type 24V 200W may also be used with some reduction in light output The motor is an induction type with capacitor Motors are available for all the voltage ranges above Optional Synchronous motor kits are also available for precise film speeds and tele cine conversions Transformers and motors are simple and easy to replace modules AC power cords line ter
56. m guide 12 is set to self thread plate 7 pushes the claw away from the gate The claw must be completely retracted however if it is pushed too far the rear of the claw lever will interfere with the shutter blades A loud click click sound will be heard Fig 90 CLEARANCE MUST BE MAINTAINED SHUTTER BLADE CAM CLAW CAM CLAW PUSH 3 To adjust this clearance it is necessary to slightly re form the plate 7 decreasing or increasing the claw s retraction n instances where the shutter blade has been bent it may be necessary to re form the shutter blade 4 2 Film Guide The 2 film guide acts as the self threading mechanism setting lever At the same time it forms the path for the lower loop When the 2 film guide 12 is set the cam bracket 13 56 Series 5 5 5 mounted to the pivot shaft of the 2 film guide activates the interlocking bracket sub assy 14 engaging the release bracket assy 32 locking the mechanism in self thread position To adjust it may be necessary to reform the latching pin on the release bracket if the mechanism will not set to self thread Fig 91 A small amount of silicone grease on latching pin is required for smooth operation of the latching and release mechanism is important that the 2 and 3 film guide line up with a minimum of clearance Too much clearance will allow the film to go under the 3 guide Fig
57. made by 105 uud Fig 88 CLEARANCE PROTRUSION Too little or no clearance will cause film wear or damage Care should be taken when removing the shoe not to lose the spring 23 1 Film Guide In the self thread position the 1 film guide 1 Fig 80 is extended from the main casting guiding the film from the 1 sprocket and shoe into the film gate After the threading mechanism is released the guide recedes away from the film ath P Fig 89 1 FILM GUIDE ADLIUSTMENT SCREW 41 FILM GUIDE PIN A gt cementing three short strips of film L together BAR Fig 87 fi i e imatel ENIM Bie The film guide travels approxi y 2 m S from operate to self thread This travel is not 7 2 critical There should be enough travel for the e ao 156110 5 a Under normal circumstances the shoe does not require any adjustments however as the film 55 guide to retract away from the film in normal operation and self thread extend to the width of the aperture plate To adjust this travel loosen or tighten the screw and jam nut Sec Fig 89 The position of the cam tank may affect the position of the control bar which activates the 1 film guide It is important that the control bar aligns with the 1 film guide NOTE 3 Retraction Of The Claw When the 2 fil
58. minals and all other electrical parts are designed to meet the safety requirements of the countries listed 1 4 SOUND SYSTEM EIKI series models are designated according to the sound playback and record capabilities with or without front cover extension speakers Optical Playback only Model NST O 1 amp NT 0 1 Optical amp Magnetic Playback Model NST 2 NT2 Optical amp Magnetic Record Playback Model NST 3 NT 3 Model NST 1 2 amp 3 and NT 1 NT 2 amp NT 3 are standard with two 4 ohm 12 5cm speakers built in the front cover Models NST 1 4 2 and 1 amp 2 are also standard with one 8 ohm 12 5cm speaker built in the rear cover Models NST 0 and 0 are standard with one speaker only 8 ohm 12 5cm built in the rear cover The standard amplifier modules for the NST O _ 15 amp MT 0 and NST 1 4 NT 1 are optical sound reproduction only Amplifier modules for the NST 2 and NT 2 are capable of both optical znd magnetic sound production Amplifier modules for the NST 3 ard NT 3 are capable of both optical playback and magnetic record playback N Series 11 41 320 2 SERVICE PROCEDURES 2 1 PRECAUTIONS EIKI N series projectors have been designed for the ultimate in simplicity and ease of service and repair Each screw is very important and when servicing or re assembling the projector screws should not be omitted or carelessly lost Al
59. must line up with the mating dicated in Fig 32 amp 33 hub in the cam tank c Turn screw B Loosening screw B counter NOTE In the event the shutter has been clockwise increases the claw protrusion removed from the hub See Sec 320 Tightening the screw clockwise decreases 4 1 F Changing Shutter Blades the claw protrusion 28 Checking claw protrusion using Too 320 011 fig 34 1 Open lens holder and gate assy 2 Attach the tool between the inner guide rail and the outer guide rail 3 With the small V notch toward the outer guide rail the claw should just contact the tool 4 With the large notch toward the outer guide rail the claw should move freely without contacting the tool Fig 34 SMALL LARGE V NOTCH V NOTCH el CLAW MOVES CLAW STOPS FREELY e When using another type of claw protrusion gauge of similar specifications as 320 4 1 disregard items 2 3 4 and follow the instruc tions associated with that gauge 2 Claw Position And Framing Adjustments a If the claw does not enter the center of the film perforations or if the framing adjustment is insufficient the claw position should be adjusted This adjustment can be either hori zontal or vertical To adjust the fulcrum assy slightly loosen the two screws C shown in Fig 32 amp 33 1 Checking the Framing Adjustment This is best accomplished with the projector run ning sho
60. n 5625 30 All Ball Bearings Factory 08 6082 Pin Grease seated OB 608ZZ 34 Clutch Cover Pulley Petroleum 5631 620022 Bushing 626 Fig 2 FILM PATH 1 HUB 3 8 PIN gr 7S v GS I M 3 4 18 ms PIN 5 h 4 gt NO N 3 1621 4 17 PIN Fig 73 SELF THREADING MECHANISM Main Interlocking Bracket 19 LUBRICANTS amp LUBRICATION CHARTS N Series Fig 4 CAM TANK MODULE al 28 CAM TANK MODULE amp FILM GATE Fig 5 21 A 21 1 T 2 N 21 CY p AA 1 J u 22 X Tu 1 Y 12 j 1 lt ME er 5 M eed AO EN MN 20 LUBRICANTS amp LUBRICATION CHARTS Series 1 SPROCKET GEAR amp HUB CLUTCH COVER PULLEY TER 1 4 E eei SSS Fig 7 SOUND DRUM HUB amp FLYWHEEL 12 TT c 2 all Fig 8 LOOP SETTER LUBRICANTS amp LUBRICATION CHARTS Fig 10 REWIND GEARS amp CONTROL LEVER N Series Fig 11 TAKE UP ARM DRIVE PULLEY SUPPLY ARM DRIVE PULLEY Fig 12 30 E o pin L4 222722 TENSION GEAR Fig 13 LUBRICANTS amp LUBRICATION CHARTS N Series SUPPLY ARM SPINDLE Fig 14 REVERSE RUBBER ROLLER Fig 15 SHAFT PIN RUBBER PINCH ROLLER Fig 16 FUNC
61. n Fig 111 corresponding to the volume and tone control positions as indicated Fig 22111 CLIPPING DISTORTED NORMAL SINE WAVE g This completes the Sound Focus adjustment Clamp the sound lens clamp screw and test with a good sound track film TYPICAL TEST SET UP lt e u UNDISTORTED Series 6 1 4 4 Buzz Track Adjustment Procedure a Connect the projector to the test set up as Fig 113 b Load an SMPTE buzz track test film loop 4 VOLTAGE ROL SWITCH BOX 62 furn the function control with the emulsion side towards the film shoe switch to the Forward position Turn the amplifier volume and tone controls to maximum clockwise and listen for a clear 1000Hz tone Sound lens holder is mounted on two pins 4 amp 5 which slide into holes of the frame casting Loosen the upper screw 8 to allow adjustment Adjust the buzz track by slowly sliding out the sound lens holder 1 until the 1000Hz tone is inaudible and a 300Hz tone becomes audible Then slowly slide in the sound lens holder until neither the 300Hz or the 1000Hz tone is audible indicating correct buzz track align ment Tighten the upper lock screw 8 Re check the 7000Hz sound focus alignment Remove the exciter lamp Remove the round lens adjustment tool Re install the exciter p and wipe off any fingerprints TVA Fig 112 ME
62. n or defective rewind 2 Replace gears x See Sec 4 5 1 Dirty film gate 1 Clean 2 Film shoe binding and not 2 Check amp realign 44 Uneven focus completely seated See Sec 4 5 B 3 Inner guide binding 3 Check See Sec 4 5 4 Lens holder misaligned 4 Check amp adjust See Sec 4 5 140 Series IV LAMP CIRCUIT SYMPTOM PROBABLE CAUSE REMEDY 1 Poor lamp socket connection 1 Replace lamp socket 2 Cooling is restricted 2 Locate amp remove the cause 3 Defective lamps ar incorrect 3 Check amp replace lamp other than ELC type 4 Excessive or fluctuating AC 4 Check AC line line voltage 45 Lamp life is abnormally short 46 Uneven or insufficient screen 1 Check amp reseat 1 Lamp not seated properly iliumination 2 Foreign object in the light 22 Remove path 3 Lamp not centered herizon 3 Adjust knurled knob tally 4 Defective lamps or incorrect 4 Check amp replace lamp other than EIKI ELC type Function switch in 5 Switch to high position pasition 6 Slow or defective lens 6 Try another lens 7 Low AC line voltage 7 Check AC line 8 Improper shutter 8 Check or replace a N Series V SOUND SYSTEM SYMPTOM _ PROBABLE CAUSE REMEDY 47 No sound and the exciter lamp 15 not Turn on Check amp repair or replace Replace Repair or replace Che
63. oes not come on in forward lamp posi tion de 4 Pilot lamp on motor runs in forward but not in reverse position t power to the wall Defective power cord Faulty transformer or con Detective pilot lamp Faulty motor capacitor Switch cam not activating Defective micro switch 1 Motor thermal switch open UL amp CSA type Defective lamp Lamp not seated properly in I ELECTRICAL SYSTEM PROBABLE CAUSE outlet nection Defective motor module Defective or open motor con nections micro switch 1 the socket Defective lamp socket Defective micro switch 4 or 5 on the function control Open transformer connection Defective transformer module Micro switch 2 and or 3 defective Defective motor module 6 Allow motor REMEDY 1 Check outlet 2 Check amp repair or replace 3 Repair or replace Sec Sec 4 4 4 Replace 1 Replace or repair See Sec 4 3 2 Check amp repair or replace See Sec 4 3 C 3 Check amp replace See 4 3 4 Check amp adjust See Sec 8 1 A 5 Check amp replace Sec Sec 8 1 to cool and check again 1 Replace lamp 2 Check amp reseat 3 Repair or replace 4 Check amp replace See Sec 8 1 A 5 Check amp repair See Sec 4 4 6 Replace See S c 4 4 1 Check or replace See Sec 8 1 A
64. or al types Fig 56 Pin Color of Wire Pin Color of Wire Connection to 1 Orange 1 Red Micro Switch 5 Lamp High 2 Blue 2 Blue Micro Switch 4 Lamp Low 9 White 2 White Halogen Lamp FEMALE 9 Pin Nylon Connector Female Fig 57 Pin Color of Wire Color of Wire Color of Wire Connection to for 100V 110V 120V for 120V UL for 220V 220 240V standard types CSA type SCAN type im Brown Brown N C AC Terminal 1 2 Black N C Black AC Terminal 2 3 4 5 White White White AC Terminal 4 3 Orange Orange MT 9 Pin Socket 1 or 2 7 Blue Blue Blue MT 9 Pin Socket 4 Blue Blue Blue Pilot Lamp 8 L Blue Blue MT 9 Pin Socket 5 Blue Blue Blue Pilot Lamp 9 Orange Orange Orange MT 9 Pin Socket 2 or 1 STANDARD TYPE Fig 57 A Fig 57 Fig 57 C 120V UL amp CSA TYPE 220V SCAN amp SEMKO TYPE FEMALE FEMALE FEMALE N Series 4 5 B 1 4 5 LENS AND GATE MODULE or dirt The aperture plate 26 is mounted to the A Film Gate Assembly gate plate by twa nuts allowing it to slide up and Fig 58 down with the framing lever The outer guide rail 38 is fixed to the gate plate by two screws The inner guide rail 34 is movable and is mounted by two shoulder screws and is adjusted by the side pressure spring 36 1 Adjustment Of The Inner Guide Rail The tension of the
65. osition of Tone Control Frequency Response 3K 25 45 4 5 6 0 5 5 20 35 55 5 0 7 0 400Hz Odb ee Zl 4K 30 1 60 65 70 80 26 55 70 5 85 0 5 10 0 55 120 6 5 30 1 6 5 9 0 8 5 10 5 6K 30 155 3 0 so 4 5 30 1 75 105 95 120 8 0 10 0 13 0 7K 50 190 10 200 25 40 i 2 4 ui M nes i 8K 12 0 11 6 13 5 22 2 1 115 12 0 14 0 13 0 L 5 2 ee 15 150 100 1 1 0 11 0 35 N Series N Series Amplifier Frequency Response typical pattern m EIER inia EE SE in E a 36 Series Series Amplifier Frequency Response typical pattern Series Series Amplifier Frequency Response typical pattern dis SHEETS E 1 15 t i T uH un 23 122 ieee zm ie pert enam abe eat ee agri 1 H wie on e iani ms 5 ETE mb 7 da 41 am Tu Em pom 4 I parto To bno io bula MEI M E Ut IT i Lii 2 Hn HUBER
66. plifier low AC supply voltage exciter lamp supply See Sec 4 2 Check wall outlet 5 Weak or defective solar cell 5 Replace 6 Defective speakers or poor 6 Check amp replace speaker connection 7 Poor film quality 8 Defective amplifier module Check with another film Repair or replace See Sec 3 2 amp 4 2 oo ha Series SOUND SYSTEM SYMPTOM PROBABLE CAUSE REMEDY 50 No sound a Mag Opt switch in the wron gl 1 Check 6 switch magnetic only NST NT 2 3 models 51 Poor sound or low volume magnetic only NST NT 2 3 models 6 Defective amplifier module position 2 Magnetic head not in contact with the sound track 3 Defective or dirty magnetic head 4 Mag Opt switch defective or bad connection 5 Defective speakers or speaker connections 1 Poor sound track 2 Dirty or defective head 3 Head not making good con tact with the film 4 Incorrect sound head align ment 5 Defective speakers or poor speaker connection 6 Defective amplifier module ru 52 Exciter lamp fuse blows 53 Amplifier fuse blows 54 Excessive amplifier hum optical to be continued 1 1 1 Excessive AC line voltage 2 Incorrect fuse 3 Incorrect or defective exciter lamp 4 Defective exciter lamp power supply 5 Defective exciter lamp socket 1 Incorrect fuse 2 Imp
67. roper connection to an external speaker system 3 Defective amplifier module Ja Exciter lamp cover missing or not installed correctly 2 Incorrect grounding when connecting the projector to an external amplifier or sound system 3 Defective exciter lamp supply 4 Defective solar cell or con nections to amplifier PE 2 Check amp adjust 3 Clean or replace 4 Check amp replace 5 Check amp replace 6 Repair or replace See Sec 4 2 amp 322 1 Check with another fim 2 Clean or replace 3 Adjust See Sec 6 2 4 Align See Sec 6 2 5 Check amp replace 6 Repair or replace See Sec 4 2 amp 3 2 1 Check wall outlet 2 Check amp replace 3 Check amp replace 4 Check amp repair Sec Sec 4 2 pa Replace 1 Check amp replace 2 Check 3 Repair or replace See Sec 4 2 amp 3 2 1 Install cover 2 Check for ground loop ditions 3 Check voltage and repair See Sec 4 2 4 Check amp repair SOUND SYSTEM SYMPTOM PROBABLE CAUSE 54 Excessive amplifier hum S Front or rear cover speaker optical jacks not insulated from the continued chassis properly 6 Defective amplifier module 55 Excessive amplifier hum magnetic Poor film recording Motor shield not installed Improper connection to an external amplifier or sound system 4 Magnetic head in poor con tact with the film 5 Poor
68. rward position and that it drives the sound drum during reverse This action can be observed by operating the mechanism manually via the inching knob and with the fly wheel removed The rubber roller should be clean and free from any grease or oil dry or glazed roller should be replaced _ 49 5 4 LOWER LOOP SETTER SYSTEM A Description Torn or damaged sprocket holes in a film will cause the lower loop to be shortened When this occurs the film pull down will be out of sequence with the shutter causing a jitter or jumping picture When this occurs the automatic loop setter will reset the lower loop again bringing the film under control of the pull down mechanism Fig 75 LOWER LOOP SETTER ROLLER 7 30 O CLOCK POSITION The automatic loop setter consists of the sctter roller 6 the hub assembly 1 and the gear and shaft assembly 11 When the lower loop is shortened one complete frame or more the film applies pressure on the setter roller 6 which in turn causes the eccentric gear 11 to engage rotating the setter roller one complete revolution pulling down on the film thus re establishing the correct lower loop Additional rotations may indicate severely damaged film or incorrect loop setter adjustments B Adjustments In the normal operate position with good film the loop setter roller should rest at approximately 7 30 o clock Fig 75 with the flat side of the N Series 5 4 gear
69. s 4 5 B 3 b Film Shoe Position When the gate is closed the film shoe should line up along the edge of the outer guide rail and seat flat against the aperture plate To adjust the position of the film shoe loosen the retaining plate screws 11 close the film gate and insert one film thickness between the outer rail and the film shoe Fig 62 Reposition the retaining plate to obtain moderate tension on the film and secure the retaining plate screws 11 Open and close the gate to be sure the film shoe seats com pletely FILM Fig 62 c Uneven Focus Uneven focus occurs whenever the image on the film is not flat and perpendicular to the Optical path To adjust the axis of the lens to the aperture plate set the projector to exact right angles to the screen Without a film in the gate project an image of light on a screen at least 3 or 1m wide Focus the edges of the image If both sides are not focused equally adjust the fens holder index screw and lock nut 19 amp 20 to achieve optimum equal focus NOTE Fast lenses such as the standard f 1 2 50mm 2 require more precise adjustments than slower lenses d Lens Holder Hinge Adjustment The lens holder provides for automatic closing of the No 1 film shoe when manually thread SET SCREW SET SCREW ing the projector and restricts the opening of the film shoe during the self thread operation Too tight a clearance does not allow for easy film thre
70. s part of the cam shaft with bearing 3 Remove shutter pulley 50 and the plate assy washer 51 Care should be taken not to loose 12 Clean al the old dried molybdenum grease the slim washer 54 behind the plate washer The slim washer is selected where necessary to provide the correct clearance between the shutter pulley 50 and the shutter blade and hub 46 uns from the cam tank Fig 30 N Series 4 1 D1 D Adjustments Fig 31 1 Claw Protrusion Fig 32 FIBER WASHER G1 080120 a Claw protrusion can be adjusted by the screw B on the fulcrum collar As the sliding pin Reassembly of Cam Tank By Reversing The 31 wears the protrusion will increase re Above Procedure quiring the adjustment of the protrusion 1 Make sure curved plate spring 24 is not jammed Fig 33 between the end of fulcrum pin 18 and washer SCREW 23 SCREW The cam shaft should have no end play 22 pe Worm gear 7 is mounted without any clearance between the cam tank bearing No end play is allowed for the ball bearings on the cam shaft 5 When overhauling the cam tank it is suggested that the felt oil pad be replaced 6 Re lubricate the cam area with a small amount of molybdenum disulfide grease and moisten the felt with a few drops of molybdenum oil WW NJ SCREW c 7 When mounting the shutter blade and hub b Loosen set screw A by 1 8 of turn as in assembly the hub
71. sembly maintains close contact with the engages with the self threading mechanism to film and must be kept free from accumulated dust release the film shoe during threading mec ge Fig 61 9 2 Lens Holder Fig 61 The lens holder consists of the lens holder barrel 9 the focus knob 16 and the lens friction drive pinion the upper and lower shoe pins 12 and springs 14 and 15 Adjustments a Film Shoe Pressure The pressure of the film shoe against the film is maintained by the tension springs 14 amp 15 located behind the shoe pins 12 Excessive film shoe tension will cause unnecessary film wear insufficient tension can cause an un steady picture excessive film gate noise and uneven or erratic focus To test the film shoe pressure retract the cam claw insert a strip of film in the gate and close the gate Attach a gram scale to the end of the film at the top A gentle steady pull should produce about 90 to 110 grams of pull indicating the correct film shoe pressure To adjust the pressure stretch shorten or replace the shoe springs NOTE The upper spring is shorter than the lower spring The extra tension of the lower spring is designed to overcome the film move ment caused by the claw action at the lower end of the film shoe It is important the shoe pins move freely in the lens holder If not clean away any dirt or grease restricting its free movement Do not lubricate AZ N Serie
72. ter ing blade 13 Curled film goes over the 1 Loop setter position is too loop setter roller low 2 Severely curled film 14 Film goes under the 3 film 1 2 Film guide defective guide or comes out 2 43 Film guide defective 3 2 and 3 film guides are not aligned 4 film 15 Film will not thread over the 1 Rough surface on the lamp 16 Film stops at the 2 sprocket sound drum house casting restricting the film travel 2 Rubber pinch roller not com pletely released from the sound drum up or out of alignment 1 Rough surface or restrictio to the film path on the lamp house casting 2 2 sprocket teeth or cover plate loose 3 Tension guide roller assembly out of alignment 4 2 sprocket shoe clearance 15 too tight 17 Film comes out of the 2 2 sprocket plate is loose sprocket shoe 2 2 sprocket shoe spring weak Or missing 18 Self threading mechanism not 1 Release bracket spring is too weak or broken 2 Release bracket pin binding released with a tug on the film 3 Rubber pinch roller bound 19 Film does not cross the auto 1 Auto take up guide not align take up guide NST only ed properly 2 Film twisted or curled d bs Series REMEDY 1 Check amp adjust See Sec 5 5 B3 1 Check amp adjust See Sec 5 5 B3 Check amp adjust See Sec 5 4 _
73. the alignment complete l Secure the adjustment screw and apply drop of lock tight sealer m Check the sound with a well recorded sour track n On NST amp NT 3 models make a recordir and re check the playback NOTE 1 Should the record not function to the amplifier section 314 4 2 an check amplifier or bias oscillator fun tions NOTE 2 Excessive audio hum may occur b installing a motor without its magneti shield 314 7 LAMP CIRCUIT 7 1 LAMP CIRCUIT A Description The series projector 15 designed with 24 volt AC Quartz Halogen 250 watt ELC lamp A 200 watt EJL lamp may also be used with some reduc tion in light output The function switch provides either a high or low lamp voltage selection to extend the lamp life B Replacement And Alignment 1 Disconnect AC power cord 2 Open the lamp house door 3 Push the lamp ejection lever to the left and the lamp will come out CAUTION LAMP MAY BE HOT 4 When replacing lamp be sure that it snaps into the lamp socket properly and that heat shield and lamp house cover are re installed 5 For maximum even illumination it may be necessary to adjust the lamp position to allow for slight variations in lamps Turn knurled nut tor horizontal adjustment OFF ALL OFF 1 SW 1 ON di SWI amp 4 ON SW 1 4 8 5 ON SW 1 2 amp 30N SW 1 2 3 amp 4 ON FUNCTION ROTARY SWITCH Fig 116 7 a S
74. wing a shop test film With the framing control lever in the up position the frame bar of the film should appear as in Fig 35 and in the down position the frame bar should appear as in Fig 36 Fig 36 DALE BEFORE PULL DOWN PERFORATION CLAW d b Series 4 1 D2 2 If the conditions in step 1 are not correct adjust the vertical or up and down posi tion of the fulcrum assy Fig 32 amp 33 by slightly loosening screws C on the fulcrum assembly Only a very small movement is required to effect the framing position NOTE If framing range as indicated can not be reached check for a worn cam follower 32 of Fig 31 3 Checking Position For Correct Alignment With The Sprocket Holes To view the claw position in the sprocket holes thread a strip of good film Remove the film shoe and bracket assy With a standard 50mm 27 lens installed look through the lens Focus and rotate the inching knob while observing the claw position in the film sprocket holes Do not turn on the lamp Fig 37 indiciates the correct position of the claw just before the start of the pull down Fig 38 indicates the position after completion of the pull down 5 To adjust the claw position move the ful crum assy horizontal and slightly vertical until the distances a b d are equal as indicated in Fig 37 amp 38 Upon comple tion of the position adjustment tighten the fulcrum assy screws and re
75. y adjusting the sound lens with your fingers if the tool is not available 3 Sound Focusing Adjustment Procedure a Connect the dummy load resistor to the speaker output Jack b Thread the 7000Hz SMPTE test film loop with the emulsion side towards the film shoe c Connect either an AC VI VM 20 volt range or an Oscilloscope across the dummy load resistor Fig 113 NOTE When using instruments with a grounded shield input avoid a ground loop con dition by not connecting the shield at the load resistor Turn the projector s function switch to for ward 61 e Set the treble control to the Max position and the bass ta the Minimum Loosen the sound focus lens clamp screw slightly to allow a rotation of the lens Turn on the volume control towards maxi mum and observe the AC VTVM or the Oscilloscope 1 With the AC VTVM connected observe the meter while slowly moving the lens up or down and slightly rotating until the maximum voltage reading is achieved Clamp the sound lens and this completes the sound focusing alignment With the Oscilloscope connected across the dummy load resistor a more precise alignment can be achieved Observe the 7000 7 sine wave at both full volume and a lower volume at the same time adjusting the rotation and up or down position of the sound lens for maximum P P voltage of the sine wave A clean undistorted sine wave should be observed asshowni
76. y the safety arm assembly which exerts a downward pressure against the main drive belt preventing the loop setter gear from activating the loop setter during the threading Series 5 5 operation The lower portions of the lamp house cover provide the guides necessary to complete the threading thread turn the function switch to forward set the 2 film guide to thread insert the film inte the film channel When the film exits at the last roller a light tug releases the threading mechanism The projector is now ready to operate the safety arm is released and the loop setter is activated the film shoe and claw lever is also released The tension around the sound drum is automatically controlled by the tension of the rubber pinch roller Fig 80 iD os N Series 5 5 A SELF THREAD FILM PATH 1 SPROCKET FILM CHANNEL Fig 81 p LAST CLAW ROLLER E AUTO TAKE UP GUIDE NST Ce 2 SPROCKET LAMP HOUSE FRAME CASTING FILM GUIDE RUBBER PINCH ROLLER 2 FILM GUIDE PUSH TENSION GUIDE amp ROLLERS SOUND DRUM LOOP SETTER ROLLER SELF THREAD MECHANISM Main Interlocking Bracket SS Fig 82 RELEASE BRACKET 3 FILM GUIDE CAM BRACKET 2 FILM GUIDE MAIN INTERLOCKING BRACKET 3 FILM GUIDE 53 Series 5 5 A Cam Claw Retraction Fig 83 Mechanism SHOULDER S

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