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Eiki Service Manual

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1. May 1 1980 EIKI INDUSTRIAL LTD C P O BOX 1229 OSAKA JAPAN 06 3311 9475 EIKI INTERNATIONA INC 27882 Camino Laguna Niguel California 92677 cun 831 251 1 When the show must go on MODEL N SERIES Authorized Distributor or Dealer TABLE OF CONTENTS N Series Title PAGE INTRODUCTION 314 1 PRINCIPLES OF OPERATIONS T Introduction ss c sare due a edet URS EX AE E E coy 15 1 2 Mechanical System 15 1 3 Electrical System 15 1 4 Sound System vss age pues B 15 314 2 SERVICE PROCEDURES 2 CE ICI 17 2 2 Tools And Test Equipment 17 2 3 Lubricants And Lubrication Charts 18 2 4 Troubleshooting Hints 2 314 3 MODULE REMOVAL AND INSTALLATION 3 1 Cam Tank Module wes CE ex ey esr 25 3 2 Amplifier 25 P 3 3 Motor Module 26 3 4 Transformer 26 3 5 Lens Holder And Gate Module 26 314 4 MODULE REPAIR AND ADJUSTMENTS 4 Cam Tank Module 27 5 27 Be Disassembly lama nane ehe 27 ResAssembly osse it bad RE HARALD A RT 28 D A
2. Stretch or replace See Sec 5 4 B Relocate amp check See Sec 5 4 Check amp tighten Check 2 sprocket timing See Sec 5 4 B Check See Sec 4 1 D1 Check amp replace Check amp lubricate take up spindle cork See Sec 5 1 Adjust clearance See Sec 5 4 Replace Stretch or replace N Series MECHANICAL SYSTEM SYMPTOM PROBABLE CAUSE REMEDY 30 Film continues to flap on 1 Loop setter gear shaft is 1 Check amp lubricate loop setter roller in binding or tight in hub forward 2 Loop setter gear spring ten 2 Adjust spring tension or re sion too strong place 31 Lower loop is lost in Reverse rubber roller is not 1 Check reverse rubber roller s reverse driving the flywheel set collar function See Sec 5 3 2 Reverse rubber roller binding 2 Clean amp remove the cause of binding 3 2 sprocket not transporting 3 Check amp adjust film See Sec 5 4 Et 32 Upper loop is lost 1 Damaged or poor film 1 Repair or replace forward 2 1 sprocket teeth plate loose 2 Check amp tighten 1 sprocket shoe not seating 3 Check amp adjust properly See Sec 5 5 B1 4 Loop setter roller continues 4 See Symptom No 29 to activate or activates er ratically 33 Upper loop is lost in 1 Damaged or poor film 1 Repair or replace 2 reverse 2 1 sprocket shoe clearance is 2 Check
3. Check amp replace Check Repair or replace See Sec 4 2 amp 3 2 1 Exciter lamp cover missing or not installed correctly 2 Incorrect grounding when connecting the projector to an external amplifier or sound system Defective exciter lamp supply 4 Defective solar cell or con nections to amplifier Install cover Check for ground loop con ditions Check voltage and repair See Sec 4 2 Check amp repair ze SYMPTOM SOUND SYSTEM PROBABLE CAUSE Series REMEDY 54 Excessive amplifier hum optical continued 5 Front or rear cover speaker jacks not insulated from the chassis properly 6 Defective amplifier module Check amp repair Repair or replace See Sec 4 2 amp 3 2 55 Excessive amplifier hum magnetic 56 Distorted sound 1 2 3 Poor film recording Motor shield not installed Improper connection to an external amplifier or sound system Magnetic head in poor con tact with the film Poor shielding to the head or the head coil shorted to the projector s frame 6 Defective amplifier module tn bw Incorrect exciter lamp Exciter lamp cover not com pletely installed Amplifier module is defective Defective speaker Magnetic sound recorded poorly Optical sound lens not aligned correctly Dirt on the sound drum or on the s
4. 49 5 3 Reverse Projection A Description xi s esse e Grn bare Wa cp BER ens 49 B Adjustments ese ludo Fu des Ve Sa el ee 49 5 4 Lower Loop Setter System A Description us vere n Exp epe Pete ed ha de 50 B Adjustments cus rer Eres 50 5 5 Self Threading Mechanism Descriptiot oes ES uber eee ree atc venae 52 B Adjustments esse vue cil rr RE TRE IV RI 55 1 1 Sprocket shoe assembly 55 2 1 Film guides Ret emm 55 3 Retraction of the claw 56 4 2 56 5 Sound drum rubber pinch 56 6 Tension guide and roller assembly 57 7 2 Sprocket and shoe assembly 58 5 6 Rewind Mechanism A 59 B 59 5 7 Sound Drum And Flywheel 59 Adjustments 4 u papa 60 314 6 SOUND PICK UP SYSTEM 6 1 Optical Sound Focusing Procedure A Description ail css oue ee dque E pS SUES S 61 B Alignment 25s ii 61 1 Tools and equipment 61 2 Set up procedure 61 3 Sound focus 61 4 Buzz track adjustment
5. the wrong 2 Check amp switch position NST NT 2 3 models 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 5 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 8 Defective amplifier module 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 pick aligned up system See Sec 6 1 4 Low exciter lamp voltage or 4 Check amp repair amplifier 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 7 Check with another film 8 Defective amplifier module 8 Repair or replace See Sec 3 2 amp 4 2 SYMPTOM SOUND SYSTEM PROBABLE CAUSE Series REMEDY 50 No sound magnetic only NST NT 2 3 models 1 Mag Opt switch in the wrong position 2
6. flat response amplifier lighter weight etc With few exceptions such as color most parts from the series substitute directly into the previous 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 C REVERSE To reverse 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 series projectors are available in voltages of 100V 110V 120V 220V and 240V 110 220V and 120 240V dual voltage models are also available To comply with electrical safety regulations of various countries UL USA CSA Canada VDE Germany SEV Switzerland SAA Australia SEMKO Sweden NEMKO Norway FEMKO Finland DEMKO
7. 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 pin plug Unplug the solar cell and magnetic lead miniature plug Remove the two phillips screws one at each end of the amplifier The amplifier can now be removed by sliding out To re install reverse the procedure above Be sure that the indicator on the controls lines up and all the connectors are secured Fig 425 3 3 MOTOR MODULE 1 Remove motor belt 2 Disconnect motor nylon connector s 3 Unscrew 3 screws 4 Remove motor module 5 Motor modules are exchanged less pulley 6 To re install reverse the above procedures 7 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 3 4 TRANSFORMER MODULE Unplug nylon connectors 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 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 ca
8. RUBBER PINCH ROLLER p FUNCTION ROTARY SWITCH Fig 17 3 Fig 18 32 N 34 LOOP SAFETY ROLLER ARM 24 _ 2 4 TROUBLE SHOOTING HINTS 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 Isolate the trouble within the module b Locate and repair the specific trouble 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 25 250 19 TRANSISTOR 25 258 Fig 20 Typical Amplifier Test Set Up TO PROJECTOR OSCILLATOR AMP UNDER TEST Series 2 4 D Fig 21 DIODES 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 can be done by inserting a low level audio tone into the MIC jack and the signal path from the input of IC 1 through IC 2 and to IC 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
9. cable allowing the amplifier to be operated away from the projector The solar cell and exciter lamp connection can also be extended if so desired Fig 422 EXTENSION CABLE OSCILLOSCOPE X Je jo peu SPEAKER MIC INPUT 24 314 3 MODULE REMOVAL AND INSTALLATION PROCEDURE N Series 3 2 CAM TANK MODULE TRANSFORMER MODULE Fig 23 MOTOR MODULE AMPLIFIER MODULE 3 1 CAM TANK MODULE No PU Q3 tA 10 Unplug the projector and open the rear cover Remove the 3 transformer mounting screws and unplug the transformer See Sec 3 4 Remove the motor belt Remove the main driving belt by releasing the tension gear Retract the claw by turning the inching knob Open the lamphouse and remove the lamp and holder assembly by unscrewing the knurled nut Unscrew the two cam tank mounting screws Remove the cam tank slowly and carefully Care should be taken to avoid damaging the claw by striking it against the main casting 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 To check the timing and claw adjustments refer to 5 1 and 6 3 Un M oo 25 3 2 AMPLIFIER
10. is not clutch cover releasing or pulley defective Clutch cover pulley has no end play on the 1 sprocket drum shaft b Check amp adjust or replace N Series REMEDY See Sec 5 3 Check amp adjust See Sec 5 1 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 Spacer 28 Weak back tension of the 1 Drive gear is binding or has 1 Check amp clean or adjust take up reel in reverse no end play on the drive See Sec 5 3 pulley shaft 2 Clutch cam seated incorrect 2 Check amp reposition or binding between drive gear See Sec 5 1 and clutch cover assy or defective clutch cam 3 Drive gear or clutch cover 3 Check amp replace defective 29 Loop setter roller continues 1 Damaged or poor film 1 Repair or replace to activate or activates 2 ratically in forward Loop setter Insufficient gear spring ten sion roller in the wrong position 2 sprocket plate loose Lower loop is too small Insufficient claw protrusion or claw pitch Broken claw Too much take up tension Incorrect clearance between the loop setter gear and main drive belt Loop setter gear or main drive belt defective or broken Insufficient tension of the film shoe springs w 11
11. 62 6 2 Magnetic Sound Playback System As Descriptio z wey wei npe EN OR CUR oak ERI ao 63 B Alignment 63 1 Tools and equipment 63 2 Set up procedure 63 314 7 LAMP CIRCUIT Tl Lamp Circuit os dou ea Ao ool 9 ed REN RR FOE 65 Descrption xi lode e ea pace acte Bee 65 B Replacement and alignment 65 314 8 ELECTRICAL SYSTEM 8 1 Electrical System 65 A Function Control Switch 65 B Electrical Circuit 65 314 9 SERVICE UPDATES AND MODIFICATIONS Attachment CIRCUIT DIAGRAMS 67 79 my Series INTRODUCTION 1 This Service Manual provides the necessary informations for the repair adjustment and maintenance of EIKI NST NT series projectors model NST 0 NST 1 NST 2 NST 3 NT 0 NT 1 NT 2 and 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 A copy of all of the pertinent diagrams are attached at the end of this manual CAUTION Care must be exe
12. 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 24 AC HIGH and 22V AC LOW to the Halogen Projection Lamp and 40V or 36V AC to the Amplifier See Sec 4 4 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 terminals 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 NS
13. Magnetic head not in contact with the sound track 3 Defective or dirty magnetic head 4 Mag Opt switch defective bad connection 5 Defective speakers or speaker connections 6 Defective amplifier module 1 2 3 4 5 6 Check amp switch Check amp adjust Clean or replace Check amp replace Check amp replace Repair or replace See Sec 4 2 amp 3 2 51 Poor sound or low volume magnetic only NST NT 2 3 models 52 Exciter lamp fuse blows 1 Poor sound track 2 Dirty or defective head 3 Head not making good con i tact with the film 4 Incorrect sound head align ment 5 Defective speakers or poor speaker connection 6 Defective amplifier module 3 4 wa an Check with another film Clean or replace Adjust See Sec 6 2 Align See Sec 6 2 Check amp replace Repair or replace See Sec 4 2 amp 3 2 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 53 Amplifier fuse blows 1 Incorrect fuse 2 connection to an external speaker system 3 Defective amplifier module 54 Excessive amplifier hum optical to be continued Check wall outlet Check amp replace Check amp replace Check amp repair See Sec 4 2 Replace
14. T 0 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 1 NT 2 amp NT 3 are standard with two 4 ohm 12 5cm speakers built in the front cover Models NST 1 amp 2 and NT 1 amp 2 are also standard with one 8 ohm 12 5cm speaker built in the rear cover Models NST 0 and NT O 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 NT 0 and NST 1 amp NT 1 are optical sound reproduction only Amplifier modules for the NST 2 and NT 2 are capable of both optical and magnetic sound re production Amplifier modules for the NST 3 and NT 3 are capable of both optical playback and magnetic record playback Series 1 4 320 2 SERVICE PROCEDURES Un 2 1 PRECAUTIONS EIKI 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 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 whic
15. amp adjust too great See Sec 5 5 B1 3 Claw protrusion incorrect 3 Check amp adjust See Sec 4 1 D1 34 Excessive noise in the film 1 Upper loop too small 1 Check 1 sprocket timing gate in forward with 2 Film contacting the loop 2 Check 2 sprocket and loop good undamaged film setter roller setter timing See Sec 5 4 B 3 Dirty film gate 3 Clean S 4 Loose claw 4 Tighten 5 Incorrect claw protrusion 5 Check 6 Inner guide rail binding 6 Check amp adjust 7 Film shoe bent worn 7 Check amp replace binding 8 Claw position incorrect 8 Check amp adjust See Sec 4 1 D2 9 Weak or broken cam follower 9 Replace spring See Sec 4 1 B A See Symptom No 34 noise in the film gate 35 Unsteady picture Incorrect shutter blade posi 1 Check amp adjust tion See Sec 4 1 F 36 Travel ghost SYMPTOM MECHANICAL SYSTEM PROBABLE CAUSE N Series REMEDY 37 Excessive noise in reverse only 1 Claw position incorrect Check amp adjust See Sec 4 1 D2 2 Claw angle is incorrect 2 Check amp adjust See Sec 4 1 E 38 Insufficient framing 1 Claw position incorrect 1 Check amp adjust See Sec 4 1 D2 2 Worn cam follower or glid 2 Replace ing pin See Sec 4 1 B 39 Excessive noise when the still 1 Motor pulley misaligned 1 Adjust picture lever is depressed 2 Shutter pulley binding on the 2 Remove c
16. bricate the cam area with a small amount of molybdenum disulfide grease and moisten the felt with a few drops of molybdenum oil When mounting the shutter blade and hub assembly the hub must line up with the mating hub in the cam tank In the event the shutter has been removed from the hub See Sec 320 NOTE 4 1 F Changing Shutter Blades 28 Adjustments N Series 4 1 D1 Fig 32 CLAW a Claw protrusion can be adjusted by the screw B on the fulcrum collar As the sliding pin 31 wears the protrusion wil increase re quiring the adjustment of the protrusion SCREW SCREW C dicated in Fig 432 amp 33 clockwise increases the claw Fig 33 b Loosen set screw A by 1 8 of turn as in c Turn screw B Loosening screw B counter protrusion Tightening the screw B clockwise decreases the claw protrusion SMALL LARGE v NOTCH d Checking claw protrusion using Tool No 320 O1T 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 con
17. djustments 1 Claw Protrusion 28 2 Claw Position And Framing 29 E Claw Replacement 30 F Changing Shutter 31 Still Picture 32 4 2 Amplifier Module Specifications ccelis Ok hh oes 33 B Power Supply Circuit 33 C Audio Amplifier 0 33 D Magnetic Record Amplifier 34 E Amplifier Circuit 34 4 3 Motor Module Aw Specifications RT EY REP 39 B Motor Circuit Diagram 39 C Connector Wiring Code 39 D Silent Film Operation And 50 60Hz Conversion 40 4 4 Transformer Module A Transformer Circuit Diagram 41 B Connector Wiring Code 41 4 5 Lens Holder And Gate Module Film Gate Assy so aa race Ag pd ede be ao 43 B Film Shoe and Lens Holder Assy 43 314 5 GENERAL MECHANICAL SERVICING AND ADJUSTMENTS kn 5 Take Up Arm Ao IDescnptions cdd ARN reed E Ra 47 B in hEESO Na panes 47 TABLE OF CONTENTS Series Title PAGE 5 2 Supply A Description pet NERA 48 B 5
18. e faces away from the cam tank See Fig 44 45 Fig 44 3 7 HUB 31 MISSING SEMI CIRCLE i INCORRECT CALLY LINE UP CORRECTLY Series 4 1 F Fig 45 INCORRECT NOTE 3 BLADED SHUTTERS WILL AUTOMATI Series 4 1 G G Still Picture Clutch The still picture clutch consists of the shutter pulley 50 the shutter blade and hub 46 and the stil 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 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 Fig 46 32
19. ess than 7 64mm will cause the claw to engage the film between perforations possibly causing film damage or unsteady pictures 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 The claw as shown in Fig 440 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 n Fig 40 Series 4 1 E3 2 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 the pitch and moving it to the right increases the pitch Fig 41 CLAW LEVER TENSION SPRING FULCRUM CONTROL ASSY CAM FOLLOWER b The fulcrum control assy should only be moved slightly Too much adjustment will cause the claw to hit the sides of the film perforations causing film jitter Correct claw angle is shown in Fig 42 Under some circumstances a bent claw lever as shown in Fig 42 and 42 C may have to be corrected by straightening out the claw Fig 42 e ex 3 Claw Lever Tension See Fig 41 The claw lever tension force should be from 1 2 to 1 25kg when the spring i
20. et shoe See Sec 5 4 2 2 sprocket shoe spring weak 2 Check amp replace or missing See Sec 5 5 7 18 Self threading mechanism not 1 Release bracket spring is too 1 Check amp adjust released with a tug on the weak or broken See Sec 5 5 film 2 Release bracket pin binding 2 Lubricate pin adjust i linkage See Sec 5 5 B 19 Film does not cross the auto 1 Auto take up guide not align 1 Check amp adjust take up guide ed properly NST only 2 Film twisted or curled 2 Stretch or replace the film leader SYMPTOM MECHANICAL SYSTEM PROBABLE CAUSE Series REMEDY 20 Pilot lamp on motor runs but film does not advance 1 Still picture lever engaged 2 Broken or defective motor belt Release to normal run posi tion Check amp replace 3 Cam tank plate washer loose 3 Tighten See Sec 4 1 B 4 Motor pulley loose 4 Tighten e 5 Main drive belt broken 5 Replace 21 Film speed is too slow or too 1 Belt is installed incorrectly 1 Check amp re install fast 2 Incorrect motor and shutter 2 Replace with correct pulleys pulley combination See Sec 4 3 D 22 Film comes out of the path near the sound drum Rubber pinch roller is bind ing Rubber roller and tension guide out of alignment 82 sprocket shoe not seating properly Remove lubricate and adjust See Sec 5 5 B5 Check amp adju
21. h Roller Petroleum 5631 21 Cam Tank Molybdenum 5628 Pivot Shaft Oil Disulfide Rewind Lever Shaft Petroleum 5631 Grease Oi 21 A Cam Tank Felt Molybdenum 5632 Dampening Roller Petroleum 5631 Disulfide Oil Pivot Shaft or Grease 5528 Tension Gear Arm Petroleum 5631 22 Rewind Gears Shaft Silicone Oil 5629 Pivot Pin Oil 100 Tension Gear Shaft Silicone Oil 5629 23 Flywheel Hole Petroleum 5631 100 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 18 LUBRICANTS amp LUBRICATION CHARTS ITEM 27 28 29 30 DESCRIPTION Reel Guide Wire Anchorage Fulcrum Pin Shutter Pulley Bushing Cam Tank Fulcrum Pin Ball Bearings SUGGESTED EIKI LUBRICANT PART Petroleum 5631 Oil Molybdenum 5628 Disuifide Grease Petroleum 5631 Oi Factory 6082 sealed 08 60822 08 62002 08 626 FILM PATH 4 31 32 33 2 17 PIN 19 ITEM DESCRIPTION Function Switch Cam Bracket Function Switch Shaft Loop Safety Roller Arm Pin Clutch Cover Bushing Series SUGGESTED EIKI LUBRICANT PART Molybdenum 5628 6 PIN 3 16 PIN Di
22. h 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 7096 push 3096 turn It 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 Tools When servicing EIKI N series ordinary 150 Phillips type screw drivers and single bladed screw drivers should be enough EIKI screw driver kits P N 5615 are availa ble Molex extractor tool is most useful when replacing the pins of Nylon connectors to the transformer or motor Special Tools EIKI 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 15mm or 005 thick Series Tool No 320 01T Cam Claw Protrusion Tool see sec 4 1 D LARGE V NOTCH 77 SMALL V NOTCH C Test Equipment limited amount of test equipment is required for routine maintenance and modular replace ment Howeve
23. ket holes thread a strip of good film Remove the film shoe and bracket assy With a standard 50mm 2 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 c d are equal as indicated in Fig 37 amp 38 Upon compie tion of the position adjustment tighten the fulcrum assy screws and re check the framing range with the projector running Fig 37 Fig 38 AFTER PULL DOWN 4 M a k PERFORATION 1 CLAW d E Replacing The Claw 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 39 0 90 0 05 M 2 F 7 95 0 10 8 a The International dimensions of the 16mm film are shown in Fig 439 Claw pitch is set at 7 64 7 67mm A pitch l
24. ket connection 2 Cooling is restricted 3 Defective lamps or incorrect lamp other than EIKI ELC type 4 Excessive or fluctuating AC line voltage 1 Lamp not seated properly 2 Foreign object in the light path 3 Lamp not centered horizon tally 4 Defective lamps or incorrect lamp other than EIKI ELC type 5 Function switch position 6 Slow or defective lens 7 Low AC line voltage 8 Improper shutter Replace lamp socket Locate amp remove the cause Check amp replace Check AC line Check amp reseat Remove Adjust knurled knob Check amp replace Switch to high position Try another lens Check AC line Check or replace SYMPTOM V SOUND SYSTEM N Series 47 No sound and the exciter lamp is not on 48 No sound exciter lamp is on 49 Poor sound or low volume PROBABLE CAUSE REMEDY 1 Amplifier is not turned on 1 Turn on 2 9 pin amplifier plug defective 2 Check amp repair or replace 3 Defective exciter lamp 3 Replace 4 Defective exciter lamp socket 4 Repair or replace 5 Exciter lamp fuse blown 5 Check amp replace 6 Defective amplifier module 5 Replace or repair See Sec 3 2 amp 4 2 7 Defective exciter lamp power 7 Locate amp repair or replace supply of the transformer See Sec 4 4 1 Amplifier volume is too low 1 Check amp adjust 2 Mag Opt switch
25. lean inspect and shaft lubricate See Sec 4 1 G 40 Film transport does not stop 1 Shutter pulley seized 1 Remove cam tank clean amp in still picture operation lubricate pulley See Sec 4 1 G 2 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 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 Take up pulley binding on 5 Clean amp lubricate the shaft 43 Noisy rewind 1 Rewind gears not fully en yq Adjust the gear position gaged See Sec 5 6 2 Worn or defective rewind 2 Replace gears See Sec 4 5 44 Uneven focus 1 Dirty film gate 1 Clean 2 Film shoe binding and not 2 Check amp realign completely seated See Sec 4 5 B 3 Inner guide rail binding 3 Check See Sec 4 5 4 Lens holder misaligned 4 Check amp adjust See Sec 4 5 10 SYMPTOM IV LAMP CIRCUIT PROBABLE CAUSE Series REMEDY 45 Lamp life is abnormally short 46 Uneven or insufficient screen illumination 1 Poor lamp soc
26. nd shutter blade with hub Remove the shutter blade and hub assembly Position the still picture clutch where it exposes 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 plate 9 un screw the three set screws 11 To remove cam shaft assy 4 remove inching knob 8 and worm gear 7 To replace the cam tank bearings the inner bearing is pressed on the cam tank shaft and is replaced as part of the cam shaft with bearing assy Clean all the old dried molybdenum grease from the cam tank Fig 30 C FIBER WASHER G1 080120 Fig 31 B 3 3 d 17 1 d h A L _ ao 20 2322 19 P 1 217 22 a A 3 30 7 29 D 1 Claw Protrusion Reassembly of Cam Tank By Reversing The Above Procedure 1 Make sure curved plate spring 24 is not jammed between the end of fulcrum pin 18 and washer 23 The cam Worm gear 7 is mounted without any clearance z shaft should have no end play 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 Re lu
27. ng thread 1 is hitting the shutter 1 Check amp adjust ing blade See Sec 5 5 B3 13 Curled film goes over the 1 setter position is too 1 Check amp adjust loop setter roller low See Sec 5 4 _ 2 Severely curled film 2 Straighten the lead end 14 Film goes under the 3 film 1 2 Film guide defective 1 Replace guide or comes out 2 3 Film guide defective 2 Replace 3 2 and 3 film guides not 3 Check amp adjust aligned See Sec 5 5 B4 4 Curled film 4 Straighten the lead end 15 Film will not thread over the 1 Rough surface on the lamp 1 Remove amp inspect the cast sound drum house casting restricting the ing guides film travel 2 Rubber pinch roller not com 2 Check amp adjust pletely released from the See Sec 5 5 B5 sound drum 3 Rubber pinch roller bound 3 Check adjust and lubricate IAE up or out of alignment See Sec 5 5 B5 16 Film stops at the 2 sprocket 1 Rough surface or restriction 1 Remove the lamp house cast to the film path on the lamp ing and inspect house casting 2 2 sprocket teeth or cover 2 Tighten and re time plate loose See Sec 5 4 3 Tension guide and roller 3 Check for correct film feed assembly out of alignment ing from the sound drum to the 2 sprocket See Sec 5 5 B6 4 2 sprocket shoe clearance 15 4 Check and adjust too tight Sce Sec 5 5 B7 17 Film comes out of the 2 1 2 sprocket plate is loose 1 Tighten and check timing sprock
28. not trimmed 1 Trim and repeat threading guide properly 2 End of film is severely curled 2 Straighten and re thread 22 or twisted 3 Very soft leader 3 Replace leader 4 1 film guide shaft loose or 4 Re align and check bent See Sec 5 5 B2 5 Aperture plate assembly mis 5 Re align and check aligned See Sec 4 5 9 Tip of the leader enters 1 Inner guide rail bent or not 1 Align or replace underneath the inner guide aligned correctly See Sec 4 5 rail 2 Loose guide rail screws 2 Tighten See Sec 4 5 3 Film leader severely 3 Trim and re thread curled or twisted 10 Film does not thread through 1 Film leader not trimmed 1 Trim the gate and jams properly 2 Leader is severely curled or 2 Trim straighten or replace twisted or too soft 3 much 1 film shoe 3 Check amp adjust clearance See Sec 5 5 B1 4 Dirty and obstructed film 4 Clean amp check gate 5 Insufficient side travel of the 5 Check amp adjust inner guide rail See Sec 4 5 6 Side pressure spring tension 6 Check amp adjust too strong See Sec 4 5 7 Film shoe is not retracted 7 Check amp adjust during threading See Sec 4 5 ES SELF THREADING SYSTEM N Series SYMPTOM PROBABLE CAUSE REMEDY 11 Chattering noise during 1 15 not completely 1 Check amp adjust threading retracted See Sec 5 5 3 12 Clicking noise duri
29. olar cell See Symptom No 57 also 57 Excessive wow amp flutter un Rubber pinch roller binding Sound drum bearings defec tive Reverse rubber drive roller in contact with the set collar Flywheel not installed Flywheel rubbing the power cord Incorrect alignment or ten sion of the tension guide and roller assembly 58 Sound not stabilized soon after starting Weak Insufficient fly wheel plate spring tension rubber pinch roller spring Check with another film Check amp install Check amp re connect properly Adjust See Sec 6 2 Repair Repair or replace See Sec 4 2 amp 3 2 Check amp replace 2 Check amp rc install Un US Replace Replace Try a known good recording Check amp realign See Sec 6 1 Check amp clean Sce Symptom No 57 un Check Check Check amp adjust clean lubricate amp adjust See Sec 5 5 Check amp replace See Sec 5 7 Check amp adjust See Sec 5 3 Check amp adjust See Sec 5 5 B6 EM Check amp adjust See Sec 5 7 Check amp replace See Sec 5 5 B5 14 314 1 PRINCIPLES OF OPERATIONS 1 1 INTRODUCTION The series self threading projector is very similar to the earlier R series model with added improvements such as silent threading
30. r when servicing the individual modules such as the amplifier the following equipment and test films would be essential a Vom Voltage Ohm meter b Oscilloscope Audio AC VTVM Wow amp Flutter Meter 400Hz SMPTE Test Film 3150Hz Wow amp Flutter SMPTE Test 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 gt 2 3 LUBRICANTS amp LUBRICATION CHARTS TN Senn Apply a few drops after every 500 operating hours The items marked with would require more frequent lubrication ER CAUTION DO NOT OVERLUBRICATE 12 AN Fig 1 28 ig 25 24 23 12 21 11 SUGGESTED EIKI 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 Cil Duracon Guide Rollers Silicone Oil 5629 17 3 Film Guide Pivot Pin Silicone Oil 5629 100 100 E Duracon Guide Rollers Silicone Oil 5629 18 Tension Guide Roller amp Silicone Oil 5629 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 Cil Rubber Pinc
31. rcised to avoid electrical shock while servicing the projector N Series N SERIES TROUBLE SHOOTING CHART I ELECTRICAL SYSTEM SYMPTOM PROBABLE CAUSE REMEDY 1 Pilot lamp not on 1 power to the AC wall 1 Check outlet outlet 2 Defective power cord 2 Check amp repair or replace 3 Faulty transformer or con 3 Repair or replace nection See Sec 4 4 4 Defective pilot lamp 4 Replace 2 Pilot lamp on motor does 1 Defective motor module 1 Replace or repair not run in forward position See Sec 4 3 1 2 Defective or open motor 2 Check amp repair or replace nections See Sec 4 3 C 3 Faulty motor capacitor 3 Check amp replace See Sec 4 3 4 Switch cam not activating 4 Check amp adjust micro switch 1 See Sec 8 1 A 5 Defective micro switch 1 5 Check amp replace Sec 8 1 A 6 Motor thermal switch open 6 Allow motor to cool and UL amp CSA type check again 3 Pilot lamp on motor runs 1 Defective lamp 1 Replace lamp but the lamp does not come 2 Lamp not seated properly in 2 Check amp reseat on in forward lamp posi the socket tion 4 3 Defective lamp socket 3 Repair or replace 4 Defective micro switch 4 4 Check amp replace 5 on the function control See Sec 8 1 A 5 Open transformer connection 5 Check amp repair See Sec 4 4 B 6 Defective transformer module 6 Replace See Sec 4 4 4 Pilo
32. s stretched to the maximum travel of the claw lever arm 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 or 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 30 F Changing Shutter Blades Fig 43 UPPER 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 is accomplished using the SMPTE test film and adjusting the blade position LOWER GHOST 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 PRIME BLADE m semi circle on the hub must be positioned toward one of the blades The curved edge of the blad
33. st See Sec 5 5 B6 Check amp adjust See Sec 5 5 B7 23 Excessive take up torque in forward 24 Excessive take up torque reverse Dry cork of spindle assy 2 Dirty or sticky take up arm belt or take up pulley 1 Reverse clutch spring too strong 25 Take up poor or not at all in forward Take up arm belt broken or stretched or oily belt Defective ball bearing Take up pulley binding Excessive grease on take up pulley 6 Clutch cam defective 2 3 Loose spindle shaft 4 5 M Too loose film on the take up reel Ue M Lubricate cork See Sec 5 1 Clean or replace See Sec 5 1 Check amp adjust See Sec 5 3 Replace or clean Replace Tighten screw Clean or replace Avoid over lubrication Check amp replace or reposi tion clutch cam See Sec 5 1 26 Take up poor or not at all in reverse supply arm belt Reverse belt broken or oily Clutch cam not engaging Reverse clutch spring weak Broken or stretched or oily Check amp absorb extra film slack Replace Clean or replace Check amp repair See Sec 5 3 Tighten knurled nut See Sec 5 3 SYMPTOM MECHANICAL SYSTEM PROBABLE CAUSE 27 Weak back tension of the 1 supply reel in forward Reverse clutch cover pulley binding and clutch cam
34. sting Fig 29 26 Series 3 5 Fig 28 Fig 29 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 and framing Series 314 4 MODULE REPAIR AND ADJUSTMENTS 4 1 4 4 1 CAM TANK MODULE A Specifications Revolution 24 FPS 1440 RPM 5 18 FPS 1080 RPM 6 Cam Claw Protrusion MIN 1 0mm MAX 1 2mm 040 to 045 Claw Pitch 7 64 7 67 Tension of Claw Lever Spring 312 11161 NOTE Tension of Claw Lever Spring is meas ured with a tension scale pulling on Cam Claw 1 2 1 25kg and the Claw Lever Spring stretched to maxi 9 mum B Disassembly of Cam Tank Fig 430 amp 31 10 1 Set the still picture clutch to the still position with the shutter pulley 50 rotating freely 11 2 Unscrew 53 at the end of the cam shaft and shutter pulley 50 3 Remove shutter pulley 50 and the plate washer 51 Care should be taken not toloose 12 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 d es While holding the shutter blade 46 slowly raise the still picture clutch releasing the tension of the clutch spring 12 a
35. sulfide Grease Molybdenum 5628 Disulfide Grease Silicon 5625 Grease Petroleum 5631 Oil Fig 2 1 HUB 8 PIN 3 Fig 3 SELF THREADING MECHANISM Main Interlocking Bracket Series LUBRICANTS amp LUBRICATION CHARTS Fig 4 CAM TANK MODULE CAM TANK MODULE amp FILM GATE Fig 5 20 N Series LUBRICANTS amp LUBRICATION CHARTS 1 SPROCKET GEAR amp HUB Fig 6 CLUTCH COVER PULLEY FR 12 1 34 1 I I I I T Fig 7 SOUND DRUM HUB amp FLYWHEEL TAKE UP PULLEY amp SHAFT Fig 8 LOOP SETTER 3 16 Fig 9 e e T seas xa N Series LUBRICANTS amp LUBRICATION CHARTS Fig 10 Fig 11 REWIND GEARS amp CONTROL LEVER TAKE UP ARM DRIVE PULLEY SUPPLY ARM DRIVE PULLEY TENSION GEAR Fig 13 Fig 12 UU gt 22 Series LUBRICANTS amp LUBRICATION CHARTS SUPPLY ARM SPINDLE Fig 14 REVERSE RUBBER ROLLER Fig 15 SHAFT PIN SS RR 20
36. t lamp on motor runs in 1 Micro switch 2 and or 3 1 Check or replace forward but not defective See Sec 8 1 A reverse position tp 2 Defective motor module 2 Replace See Sec 4 3 5 Function switch does not 1 Loose function switch knob 1 Re locate and tighten follow the indicated sequence 2 Loose switch cam 2 Re position and tighten 3 Reverse or take up clutch 3 Check and repair cam s installed incorrectly Sec Sec 5 1 amp 5 3 SYMPTOM II SELF THREADING SYSTEM PROBABLE CAUSE Series REMEDY 6 2 film guide or self thread lever does not set the mecha nism to thread Cam bracket is loose on the 2 film guide shaft Main interlocking bracket is binding or not latching with the release bracket hook M2 Re position and tighten See Sec 5 5 B4 Check amp adjust See Sec 5 5 B Re insert the film correctly 7 Leader or film is dimpled in 1 Film is inserted with the 1 the first few inches by the sprocket holes opposite the sprocket teeth sprocket teeth 2 enough clearance be 2 Check 4 adjust tween the sprocket plate and See Sec 5 5 B1 the film shoe m 3 Film path and 2 sprocket 3 Check alignment of the ten drive out of alignment sion guide rollers See Sec 5 5 B6 4 Film leader too soft 4 Check with another film SERRE leader 8 Leader jams the 1 film 1 Film leader
37. tacting the tool Fig 34 v NOTCH Hi 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 4 33 1 Checking the Framing Adjustment This is best accomplished with the projector run ning showing 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 29 BEFORE PULL DOWN LN Series 4 1 02 2 If the conditions in step 1 are not correct adjust the vertical or up and down posi tion of the fulcrum assy Fig 432 amp 33 by slightly loosening screws C on the fulcrum assembly Only a very small movement is required to effect the framing position NOTE 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 claw position in the sproc

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