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SERVICE MANUAL

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2. 26 4 2 Amplifier Module nen 27 Power Supply ee n n nn 27 C Audio Amplifier Circuit 28 D Diagrams amp Frequency Response Chart 28 32 4 3 Motor Module A Specifications nnn 33 B Motor Circuit Diagram 33 C Connector Wiring Code 33 D Silent Film Operation And 50 60Hz Conversion 34 4 4 Transformer Module A Transformer Circuit Diagram 35 B Connector Wiring Code 35 4 5 Film Gate Assembly A Aperture Plate Assy 37 B Film Shoe And Bracket Assy As xs queo 38 321 5 GENERAL MECHANICAL SERVICING AND ADJUSTMENTS 5 Take Up Arm A Description a s sonne errs nnn B Adjustments a a srann SL II Series Title PAGE 2 Supply Arm A Description 41 B AdjuStMEntS ista 41 5 3 Lower Loop Setter System A Descriptions 42 B Adjustments ciis ett 43 45 5 4 Loading Mechanism A Description sisse etta 46 49 B Adjustments 49 56 1 1 Sprocket shoe and roller assy Sprocket drive 49 2 Upper loop former and film guard 50 53 3 Film gate opening and elosing as rer e mk es 53 4 Retraction of the cam claw sisse tns 53 5 Lower loop forming mechanism n n 33 6 Buzz roller tension
3. In the MIC or FORWARD position the roller swings down as it is released by the main interlocking bracket See Fig 85 Fig 85 25 uA 55 a To check the roller tension load the film and turn the function control to MIC The tension roller should ride on the film with gentle tension A slight push on the roller should allow it to travel downward slightly In REWIND the roller is raised up by the interlocking bracket to clear the film path Adjustment To adjust the tension roller s position remove the control pannel and turn function switch to MIC to expose the nut 7mm from behind the interlocking bracket See Fig 86 MAIN INTERLOCKING BRACKET Fig 786 TENSION SPRING TENSION ROLLER ARM 4mm NUT Unhook the tension spring and using a 7mm nut driver loosen the 4mm nut slightly and return the function switch to STOP 1 Set the tension roller at the 12 00 o clock position 2 Load up a film and set the function switch to REWIND 3 Slowly rotate the tension roller arm clock wise until it just clears the film 4 Holding the roller in this position return the function switch to MIC 5 Tighten the nut and hook up the spring 6 Check the position of the tension roller by switching back to REWIND then to STOP and FORWARD
4. CAPACITOR REO GREY WHITE CONNECTOR 6 PIN NYLON CONNECTOR MALE MALENUL ONLY du SL Series 4 3 D D Silent Film Operation and 50 60Hz Con For 50 2 sound speed the motor belt should be version aligned on shutter pulley s smaller groove and 1 Silent Film Operation motor pulley s larger groove a Disconnect power cord For 60Hz sound speed shift the motor pulley to b Open rear Turn inching knob at the the right and align the motor belt on motor same time guiding the motor belt first to the pulley s smaller groove and shutter pulley s smaller motor pulley then to the larger smaller groove shutter pulley The chart below indicates each speed combina To change back to sound speed reverse the tion above procedure d NOTE For Dual Voltage models such as 110 NOTE 50 60Hz models do not have silent 220V or 120 240V SO GOHz shutter 5 speed pulley 320 11321 is always same but 50 60Hz Conversion motor pulley 320 12831 is used for 110 The standard SL projector is available either as 220V and motor pulley 320 12841 is for SOHz sound amp silent or 60Hz sound 4 silent 120 240V models Operations Conversion from 50 to 60Hz or from 60 to 50Hz can be acomplished by changing the motor pulley To allow the projector to be operated at either 50 or 60Hz sound only it is necessary to
5. 10 05 1 5 15 15 500 0 0 1 0 1 0 0 0 0 0 1 0 B ie T 1K 0 5 1 2 3 0 0 5 0 5 2 0 e 2K 0 0 1 5 75 1 5 1 0 6 0 Frequency Response 3K 1 0 2 0 8 2 30 1 5 6 7 400Hz Odb a 4 5 2 5 5 5 6 0 1 5 8 0 5 8 0 20 7 5 10 0 1 0 6 0 6K 12120 2 5 30 140 1 30 1 0 7K 16 0 60 00 18 0 80 20 8K 10 29 SL TI Series SL Amplifier Frequency Response typical pattern PT 1 SL Series SL Amplifier Frequency Response typical pattern SOR 21 SL II Series SL Amplifier Frequency Response typical pattern c E DIIS MAG 2 32 SL Series 4 3 C 4 3 MOTOR MODULE C 6 Pin Motor Connector Female Fig 32 A Specification Pini WireColor Connected To 1 AC Induction type 1 Brown Micro Switch 1 2 1 20HP 2 Yellow Micro Switch 3 3 100 120V and 220 240 A N C 4 Power consumption 144 168W 120V 4 Blue Micro Switch 4 1 2A or 220 240V 0 7 5 Black Micro Switch 4 5 Starting Torque 1 6kg cm 6 Red AC Terminal 4 3 6 Rated Torque 0 8kg cm B Motor Circuit Diagram Fig 31 Fig 32 REB UAIN BROWN Fai THERMAL SWITCH 120 UL 5 ONLY g
6. n n tnn 53 54 7 Tension roller icis m tmt 55 g 2 Sprocket shoe i i ttt 56 5 5 Rewind System A Description siis eet 57 B check coterie ania 5 6 Sound Drum And Flywheel A ier PTGS 321 6 SOUND PICK UP SYSTEM 6 1 Optical Sound Focusing Procedure A Description 60 B Alignment i i ttt ttn 60 62 1 Tools and equipment 60 2 Set up procedure iis 60 61 3 Sound focus adjustment iis 61 4 Buzz track adjustment iiis ttt ol 62 6 2 Magnetic Sound Playback System A Description isset 62 B Alignment 2 2 22 ttt 62 63 1 Tools and equipment iiis ttt 62 Set up procedure iiit 62 63 321 7 LAMP CIRCUIT 7 1 Lamp Circuit A Description 64 Replacement and Alignment 64 321 8 ELECTRICAL SYSTEM 8 1 Electrical System A Function Control Switch 64 B Electrical Circuit Diagrams 64 321 9 SERVICE UPDATES AND 65 Attachment CIRCUIT DIAGRAMS tt 67 75 mm IN 1 w SL Series TRODUCTION This Service Manual provides the necessary information for the repair adjustment and maintenance of EIKI SL ILseries projectors S N 30001 and Up model SL 0 SL 1 SL 02 SL 2 and also EX 300 SL II series S N 3001 and Up except for the Xenon lamp supply This service manual contains some part numbers for convenience in identification anly When ordering replacement par
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9. 10 Lubricate the arm tip with silicone grease 11 Apply lock tight paint on the screw SL Series 5 4 B 2 NOTE 1 The arm tip should not be seated too far beyond the curved point on the plate spring at STOP as Fig 73 In the event of the incorrect position as Fig 73 the following troubles may be expected 1 When the function switch is slowly turned from MIC to STOP the arm tip will not stop at the position as Fig 69 and slip over to the position as Fig 70 which means the upper loop forming guide roller is at its top position as Fig 66 Consequently 2 The upper loop is not formed correctly 3 In Rewind the film may be in contact with the parts in the film path 4 The upper loop forming guide roller exceeds over the top of the lens holder cover and the film may not be loaded smoothly NOTE 2 The arm tip should not be positioned below the curved point on the plate spring as Fig 74 Fig 74 In the event of the incorrect position as Fig 74 the following troubles may be expected 1 The arm tip will not slide on the plate spring to the position as Fig 70 which means the upper loop forming guide roller does not move to its top position as Fig 64 Consequently 2 The upper loop is not formed correctly 3 The activation of the film guard switch will delay resulting in the switch not activating with the four frames consecutive film damage 52
10. 2 Slightly loosen the nut 7mm See Fig 80 3 Return the function switch to STOP 4 Push the buzz roller s interlocking arm 26 against the main interlocking bracket See Fig 80 SL II Series 5 4 B 6 5 Slowly swing the buzz roller assy clock wise until the clearance between the buzz roller and loop setter arm is about 1mm See Fig 81 Fig 80 32147121 320 18511 320 17821 321 18131 321 17381 MAIN INTERLOCKING P BRACKET 321 40051 321 17031 321 17121 BUZZ ROLLER INTERLOCKING ARM 321 17441 321 17091 320 18121 321 40061 6 Turn the function switch to 7 Tighten the 7mm nut firmly 8 Hook up the tension spring 9 Check the buzz roller position in STOP and position 10 Minor adjustments can also be made by slightly bending the tab on the buzz roller interlocking arm Fig 282 54 SL H Series 5 4 B 7 7 Tension Roller ls s M 10 rS ed gt 2 KRON 7 3 aA VUA Nga Ta a The tension roller 8 applies constant but gentle tension to stabilize the film over the sound drum The amount of tension is deter mined by tension spring 12 b In the STOP and REWIND position the tension roller is at the top See Fig 84 allowing the film to clear the sound drum Fig 84 2 eee voice music
11. 3 SL Amp Frequency Response See next page REAR SRJ Fig 30 e 9 7690250287 S 4562 7 tat QA f io Y ES p MICROPHONE 7 70 TEAC FH The 25037 N 4 JA 2 af ac 4 4 zi Re 3 T T LIEU ew av 27 5 2004 3 233 DS 522 eli FRONT COVER SP J 244 DOR 4 5h JA 4 AN e 5258 onl sov 5 Lar tov EIKI AMPLIFIER Applicable on SL 0 1 S N 11590 51 2 S N 14601 300 51 0 1 S N EX 300 SL 2 S N and up and up 1153 and up 1218 and up j vRe Azo 3k AUX OUT 7 HRS DIK 47K JA wR 5 Ras 3 3 WITH SW 28 0 3 SL Amplifier Frequency Response SL II Series 4 2 D 3 Note This is one of the typical pattern and the figure may vary slightly with each projector OPTICAL MAGNETIC at VOICE position at MUSIC position at VOICE position at MUSIC position Position of C3 N Tone Control gis Li 50 0 0 0 0 0 0 3 5 4 0 45 1 100 0 5 1 0 1 0 4 5 50 52 200 1 0 1 0 10 3 0 3 0 3 2
12. 24 Travel ghost Incorrect shutter blade posi tion 1 Adjust See Sec 4 1 25 Insufficient framing 1 Aperture plate does not move freely or loose Disassemble check amp tighten See Sec 4 5 2 Adjust See Sec 4 1 3 Replace See Sec 4 1 clean or 26 Excessive cam tank noise 2 Claw position or stroke is incorrect 3 follower cam gliding 1 Defective claw lever spring 2 Defective plate spring 3 Worn cam follower cam gliding pin 4 Fulcrum bushing worn Cam shaft bearings defective or worn 1 Replace See Sec 4 1 2 Replace See Sec 4 1 3 Replace See Sec 4 1 4 Replace See Sec 4 1 5 Replace See Sec 4 1 SYMPTOM MECHANICAL SYSTEM PROBABLE CAUSE SL I Series REMEDY 27 Weak or slow rewind 1 Worn or slipping motor belt 2 Take up arm clutch not rotat ing freely 3 Rewind Clutch spring is weak 4 Rewind clutch cork pads slipping 1 2 Bw Check amp replace Check amp adjust See Sec 5 1 Tighten See Sec 5 5 Replace See Sec 5 5 28 No rewind Micro switch 3 and 4 not activated Defective micro switch Broken supply arm belt 4 Rewind gears not engaged gt EN amp adjust See Sec 8 1 Replace See Sec 8 1 Replace See Sec 5 5 Repair or replace 29
13. 43402 1 0 3 009 t Ano XAY 2yA MS INO 7S QO X3 dn pue gIZT N S dn pue N S 1 dn pue 1099171 N S dn pue 066 N S uo 2 15 00 amp 0 15 00 2 18 gt T 0 15 atTqeortddy 4 INIA tium N 186 55 1 B 27 oft MHAR 2 MLE Lig e MOE 47 E E V Mor qq WARE BS 27 22519 Fes 5 5 SIE SBF 9725859 6 C X mu E gy my BY HD LM 88 w m EIEE BY Prr 1 23507 gt 2 009 05 104 ds 1102812 531435 75 67 SL Series 7 5 a ils an 59135 OTS mw uu _ 0402 27 5 ES m ck MS MS 3nou31 20951 N S TO9ST TOOOT N S 15 a 935 3078 52 2V 40123NNO2 140 TVNINY LL ONNOS 2778 YQLIFINNGD 49 d3SN30NOO SOLOW AVE 3343059
14. NOTE 3 The proper clearance between the film guard arm and the film guard switch shoulder is required If being too close or with no clearance the arm tip may stick fast and will not rotate resulting in the switch not activating To adjust re mount the switch swinging clockwise so that the maximum clearance is obtained as Fig 75 3 Film Gate Opening And Closing a The alignment of the film shoe is effected by n ra the position of the guide shaft Fig 76 5 320 30101 FILM SHOE 320 30061 SPRING Fig 76 LENS 320 3041 PIN en RECEPTION BRACKET GUIDE p YH 320 33011 RECEPTION BRACKET GUIDE BAR 320 30921 RECEPTION BRACKET 320 30421 MOUNTING BRACKET 53 SL H Series 5 4 B 6 b To adjust set the function control to STOP loosen the two mounting screws rotate the function control to MIC The film shoe should be seated flat against the aperture plate at the same time that it is aligned with the outer guide rail Secure the mounting screws open and close the gate and re check the position of the film shoe c Load up a film and check for even focus If necessary refer to the section on uneven focus Retraction of the Cam Claw a In the STOP or load position the cam claw is retracted by the action of the 1 sprocket shoe interlocking bracket Incorrect alignment
15. tic recording model Model SL 1 and SL 2 are standard with two 4 ohm 12 5cm speakers built in the front cover also with one 8 ohm 12 5cm speaker built in the rear cover Model 51 0 and 51 02 are standard with one 8 ohm 12 5cm speaker only built in the rear cover The standard amplifier modules for the 51 0 and SL 1 are optical sound reproduction only Standard amplifier modules for the SL 02 and SL 2 are capable of both optical and magnetic sound reproduction z 45 321 2 SERVICE PROCEDURES 2 1 PRECAUTIONS EIKE SL II series projectors have been designed for the ultimate in simplicity and ease of serv ice and repair Each screw is very important and when servicing or reassembling the projector screws should not be omitted or carelessly lost All screws should be firmly tightened to assure reliable projector operation after disassembly When lubricating the projector s plastic parts p silicone oil or grease should be used Other types of lubricants may harm plastic 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 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 proj
16. 9 Amplifier control knobs have better looking and are easy to operate Control knob of the function rotary switch is mounted more firmly avoiding slippage on the cam shaft SL Series SLI Series TROUBLE SHOOTING CHART SYMPTOM I ELECTRICAL SYSTEM PROBABLE CAUSE REMEDY See Table of Contents 1 Pilot lamp not on 1 2 Not plugged in No power to the AC wall outlet 1 Check 2 Check outlet not rotate at function switch position 2 w opened UL type only Defective micro switch 1 3 4 Defective motor connectors or not plugged in Faulty motor capacitor Defective motor module Mechanical linkage is not tivating micro switch 1 3 4 3 Defective power cord 3 Check and repair 4 Faulty transformer connector 4 Repair or replace defective transformer See Sec 4 4 module 5 Defective pilot lamp 5 Replace 6 Film guard switch is actuated 6 Check the position of upper or open loop roller If down pull up to loop forming position Or check for defective micro switch behind loop roller See Sec 5 4 B 2 2 Pilot lamp on motor does 1 Motor thermal switch has 1 Allow motor to cool check again See Sec 4 3 Check or replace See Sec 8 1 Check and repair See Sec 4 3 4 Check or replace See Sec 4 3 Replace See Sec 4 3 6 Check and adjust See Sec 8 1 3 Pilot lamp on m
17. clockwise decreases the claw protrusion d Checking claw protrusion using No 320 01T Fig 18 or equivalent 1 Set the function switch at MIC position 2 Remove Lens Holder Cover Plate 3 Remove Film Shoe and Bracket Assy 4 Attach the tool between the inner guide rail and the outer guide rail 5 With the edge side that has the smaller V notch and claw protrusion should be enough to touch 6 Change to the side that has the larger notch and the claw should move freely Fig 18 SMALL LARGE V NOTCH V NOTCH CLAW MOVES CLAW STOPS FREELY When using another type of claw protrusion gauge of similar specifications as 321 4 1 A disregard D 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 adjusted This adjustment can be either hor izontal or vertical To adjust slightly loosen the two screws C of the fulcrum assy shown in Fig 17 1 Framing Adjustment This is best ac complished with the projector running 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 19 and in the down position the frame bar should appear as in Fig 20 Fig 19 2 1f the conditions in step 1 ar
18. e Another method using EIKI 321 04 adjustment gauge Fig 87 S cu 6 8 9 1 Set the function switch to MIC and slightly loosen the 7mm nut as shown in Fig 86 2 Unhook the tension sprinv 3 Insert the EIKI 321 047 tension roller gauge 4 Push the tension roller down against the gauge 24 7mm 5 Push the tension roller interlocking arm against the main interlocking bracket and tighten the nut See Fig 87 6 Hook up the tension spring 7 Remove the gauge and check the rollers position FORWARD and RE WIND TENSION ROLLER ar Fig 88 f The tension spring may be adjusted by slightly stretching if necessary to minimize wow and flutter A weak spring should be replaced A properly adjusted tension roller should ride in the middle of it s travel 56 Fig 89 SL Series 5 4 B 8 8 2 Sprocket Shoe Adjustment The 2 Sprocket Shoe Assembly closes around the 2 sprocket when the projector is in the MIC or No 2 or 3 position Fig 89 Loosen the adjustment screw on the interlocking arm behind the 2 sprocket shoe and the inter locking arm set screw Turn the function control to the MIC posi tion Push the sprocket shoe completely up against the 2 sprocket and secure the set screw and the adjustment screw Fig 90 NOTE No end play is allowed for 2 sprock
19. 11 Replace 35 Poor sound or low volume 1 Incorrect exciter lamp 1 Check amp replace 2 Defective exciter lamp 2 Replace 3 Dirty exciter lamp 3 Clean 4 Dirt in the sound focus lens 4 Clean or replace or defective lens See Sec 6 1 5 Sound optics incorrectly a 5 Re align sound pick up sys ligned tem See Sec 6 1 6 Low exciter lamp voltage or 6 Check amp repair amplifier ex low AC supply voltage citer lamp supply See Sec 4 2 Check wall outlet to be continued SOUND SYSTEM SL Series SYMPTOM PROBABLE CAUSE REMEDY 35 Poor sound or low volume 7 Weak or defective solar cell 7 Replace continued 8 Defective speakers 8 Replace 9 Poor film quality 9 Check with another film 10 Defective amplifier module 10 Replace See Sec 3 2 36 No sound magnetic only 1 Mag opt switch in the optical 1 Check position 2 Magnetic head not in contact 2 Check amp adjust with the sound track See Sec 6 2 3 Defective magnetic reproduce 3 Replace head See Sec 6 2 4 Mag opt switch defective 4 Replace 5 Defective amplifier module 5 Replace 37 Poor sound or low volume 1 Dirty magnetic head 1 Clean magnetic only 2 Head not making good con 2 Adjust tact with the film See Sec 6 2 3 Incorrect sound head align 3 Align ment See Sec 6 2 4 Defective magnetic head 4 Replace 5 Defective speaker 5 Replace 6 Poor sound tra
20. INNER GUIDE A weak or incorrectly formed spring should be replaced Outer Guide Rail Position GATE PLATE When the film is loaded the center of the film should align with the center of the aperture To accomplish this adjust the position of the outer rail 38 37 SL II Series 4 5 B 3 B Film Shoe And Bracket Assembly 3 Adjustment 1 Description a Uneven Focus Uneven focus occurs whenever the image of the film is not flat and perpendicular to the optical path of the lens Since the lens holder assembly is mounted directly on the projectors casting any adjustment would have to be asa result of improper mounting of the aperture plate gate plate or film shoe not seating completely b Film Shoe Pressure The pressure of the film shoe against the film is maintained by two small tension springs between the shoe and the mounting bracket Excessive tension will cause unnecessary film wear and insufficient tension can cause an unsteady picture excessive film gate noise and uneven or erratic focus To test the film shoe pressure insert a strip of film in the gate close the gate Attach a gram scale to the end of the film at the top A gentle but steady pull should produce about 90 to 110 grams of pull indicating the correct film shoe pressure To adjust this pressure stretch shorten or Fig 39 replace the shoe
21. Rotary Function Switch When the rotary function switch is positioned at STOP Film path is fully open Holding the film by the finger tips beginning at entrance guide 1 pull the film along the slot path as indicated by the orange arrows Attaching the film to the take up reel completes the film loading Turn Function Switch To Film path is now closed Film perfo rations and No 1 and 2 sprockets cam claw are engaged and the upper and lower loops have been formed The PA Public Address system can be used at this position MIC 2 Motor runs advancing the film forward Projection lamp is on for forward pro jection STOP Motor is off and the film stops Turn Function Switch counter clock wise to Rewinds the film through the film path Conventional rewinding from reel to reel can also be done 1 2 ELECTRICAL SYSTEMS EIKI SL II series projectors are available for volta gesranging from 100V 110V 120V 220V and 240V 110 220V and 120 240V dual voltage models are also available According to the 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 manufactured to meet such regulations including the option of 50Hz 60Hz 50 60Hz operation Power Transformers vary according to the voltage ran
22. Sound Focusing Adjustment Procedure a Connect the dummy load resistor to the speaker output jack b Load the 7000Hz SMPTE test film loop with the emulsion side towards the film shoe Connect either an 20 volt range or an Oscilloscope across the dummy load resistor Fig 103 NOTE When using instruments with a grounded shield input avoid a ground loop condition by not connecting the shield at both ends Set the voice music selector switch to voice and turn the volume and tone controls to the maximum clockwise position Loosen the sound focus lens clamp screw slightly to allow a rotation of the lens f Turn on the projector 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 TYPICAL TEST SET UP a D CONTROL SWITCH BOX SL II Series 6 1 B 4 2 With the Oscilloscope connected across the dummy foad resistor a more precise alignment can be achieved Observe the 7000Hz 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 as shown in Fig 4104lcorresponding to the volume and tone control pos
23. Wvuovid WAY 12313 53 525 0 15 69 5 Wya Nia m Z wo vor ses 8 a 31495 0 75 mm ETTITILTE Wvetlovig DICVE MS WITT dn pue 20957 N S 3TA 10961 10001 N S MS Wile 30043 TM 45 725 NO MOLOW TVNOLIKNV 8 b 93006 MAUS 55 9509 3340 POOLAT ARETA vis _ Os HMONR ec 20 OV MOTTA proc M MS ONNOS AQTT 10 0zz O O gt NOILVAIGWOD YINACISNVSL 7MOd WVO ADLIMS INFOS ORE A0s22V G L8lQr 823 492 20 V 2010 822 tah 134208 2019 YPLIOXI MS Quvno WTIAx 103 WAYI SHAIS 0 19 dWVTNISOTYH 70 8 1 IU 9 07 7 E 7 T 53 15 0 15 imu war RE EWE T Ww dn 709ST N S 5 WvelsSviQ DISKI ILON TO9ST TOOOT N S 5
24. adjusted too ime Re adjust or no take up loose See 5 1 2 Worn or oily belt 2 Clean or replace 3 Binding spindle shaft 3 Clean amp lubricate 4 Defective take up drive clutch 4 Check amp repair 5 Broken take up belt 5 Replace 18 Weak back tension of the 1 Missing or weak back tension 1 Replace supply reel spring See Sec 5 2 19 Lower toop setter roller 1 Damaged film 1 Check film sprocket holes continues to activate for damage 2 Lower loop is too small 2 Adjust loop setter roller position See Sec 5 3 3 Upper loop is too small 3 Adjust upper loop forming system See Sec 5 4 B 2 4 Too much take up tension 4 Check take up tension See Sec 5 1 5 2 sprocket plate is loose 5 Check amp tighten 6 Loop setter eccentric gear 6 Stretch or replace dampening spring is weak See Sec 5 3 7 Loop setter gear is always in 7 Adjust position of the loop contact with the timing belt setter gear or main drive belt guide bracket See Sec 5 3 8 Defective main drive belt 8 Inspect or replace to be continued epe SYMPTOM MECHANICAL SYSTEM PROBABLE CAUSE SL Series REMEDY 19 Lower loop setter continues to activate continued roller Insufficient claw protrusion Loop setter timing is incorrect or defective claw 9 Check adjust or replace See Sec 4 1 10 Check amp adjust See Sec 5 3 20 Loss of upper
25. against the pulley 4 and spindle pulley 11 The amount of friction is adjusted by a combination of the tension spring 20 and the weight of the take up reel Adjustments 1 Take Up Torque The take up arm belt must be kept clean with the blue side of the belt positioned towards the pulleys Avoid any oily substances on the belt Clean the belt with Isoprophyl Alcohol The take up tension is adjusted by increasing or decreasing the belt tension with the adjustment screw 19 This tension should have a range from approximately 90 grams to 150 grams depending on the reel size Torque in excess of 150 grams should not be permitted on small film reels Under normal operation where small to medium size reels are used the tension screw should be adjusted to where it barely makes contact with the tension spring 1mm to 3mm Clockwise adjustment increases the take up torque Counter clockwise adjustment decreases the take up torque MIN GAP Imm to 3mm TENSION ADJ SCREW Fig 42 SL II Series 5 1 B 2 Take Up Clutch Mechanism The take up clutch mechanism requires lubrication The clutch cam clutch cover and drive gear should be kept clean and free from dirt A small amount of silicone oil on the drive pulley shaft is sufficient When re assembling the clutch mechanism it is important that the clutch cam be positioned correctly A space of 0 2mm is required between the drive gear and clutch c
26. frequencies The feedback circuit of IC 1 is accomplished from Pin 6 through C8 and R5 2 7K by SW1 for linear optical playback and switched to C4 and R4 015 mfd and 100K for the magnetic equalization The tone control is a treble control effected by VR 1 50K R10 R9 C11 and C12 R10 and C11 boosts the high end while C12 attenuates the high frequencies The output of the tone control circuit is fed into pin 14 of IC 1 b The output of IC 1 b is coupled through C 17 and R20 to the volume control VR2 10K The feedback network of IC 1 5 is ac complished by C17 R19 C16 R18 and R16 to Pin 13 of IC 1 b SL Series 4 2 0 The Voice Music switch SW2 bypasses R19 fora linear bass response in the voice position In the music position the addition of R19 10K through R 18 R16 and C16 increase the bass boost ap proximately 6db For flat response the voice music switch should be in voice position An auxiliary audio output jack is provided across VR2 volume control The output level is adjusta ble with the volume control and is intended for use into the Hi Z input of an external amplifier Care should be taken to avoid a ground loop condition as a result of double grounding the projector through the external amplifier This condition may result in amplifier damage or audio hum D Diagrams 1 SL Amplifier Diagram See the end of this manual 2 SL Amp P C Board Block Diagram See the end of this manual
27. mounting may result in excessive film gate noise or unsteady picture International Dimention of the 16mm Film Fig 23 15 95 0 03 T 1 27 0 02 7 620 0 015 100 frames 762 0 0 8 795 0 10 1 Correct Claw Pitch a The International dimensions of the 16mm film are shown in Fig 23 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 67 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 24 has a 55 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 24 25 2 Adjusting of The Claw Pitch a Moving the fulcrum control assy Fig 25 shows the correct position between the cam and the cam follower cam gliding pin 312 11641 The contact point of the cam follower with the cam will change the pitch Moving the fulcrum control assy to the left decreases the pitch and moving it to the right increases the pitch Fig 25 CLAW LEVER TENSION SPRING FULCRUM CONTROL ASSY b The fulcrum control assy should only be moved slightly Too much adjustment will cause the claw to hit the sides of t
28. replace or binding See Sec 4 5 9 Film shoe closing mechanism 9 See Loading System does not completely close See Sec 5 4 10 Lower loop too small 10 Re set the function switch 11 Lower loop arm stop plate 15 11 Re position amp adjust out of position 8 SYMPTOM MECHANICAL SYSTEM PROBABLE CAUSE SL Series _ REMEDY 23 Unsteady picture Emulsion or dirt build up on the aperture plate or film shoe 2 Incorrect claw protrusion 3 Film shoe not seating com pletely 4 Weak film shoe springs 5 Improper claw alignment defective claw 6 Claw stroke not correct 7 follower cam gliding pin or sliding pin 8 Weak claw lever spring 9 Inner guide spring missing or weak 10 Loading mechanism does not close the gate completely 11 Worn cam 12 Inner guide rail worn or binding 13 Outer guide rail loose 14 claw lever fulcrum bushing Clean 2 Check amp adjust See Sec 4 1 Check amp adjust See Sec 4 5 Adjust or replace See Sec 4 5 Check adjust or replace See Sec 4 1 Adjust See Sec 4 1 Replace See Sec 4 1 Replace See Sec 4 1 Replace See Sec 4 5 10 See loading system See Sec 5 4 11 Check amp replace See Sec 4 1 12 Check amp replace or clean 59 U 13 Check amp tighten 14 Check amp replace See Sec 4 1
29. setter See Sec 5 4 12 FILM GUARD does 1 Upper loop arm is in wrong 1 Check amp adjust shut off power when upper position See Sec 5 4 B 2 loop is lost 2 Film guard arm is in wrong 2 Check amp adjust position See Sec 5 4 8 2 3 Defective micro switch 3 Check amp replace 4 Deformed plate spring 4 Check amp replace SL Series MECHANICAL SYSTEM SYMPTOM PROBABLE CAUSE REMEDY 13 Pilot lamp on motor runs 1 or defective motor 1 Replace but film does not advance belt 2 Motor pulley loose 2 Check amp tighten 3 Main drive belt off or broken 3 Check amp replace 14 Film speed is too slaw 1 Belt installed incorrectly 1 Re lacate belt position too fast 2 Incorrect motor pulley 2 Replace 3 Incorrect line voltage 3 Check 15 Film comes out of the path 1 Film is loaded incorrectly 1 Re load or lifts off near the sound 2 2 sprocket shoe rollers not 2 Check amp adjust drum seating properly See Sec 5 4 3 Buzz pinch roller s tension 3 Hook spring or replace i spring is off or defective 16 Excessive take up torque 1 Adjusted too tight 1 Loosen tension adjustment i screw See Sec 5 1 2 Dirty or sticky take up arm 2 Clean or replace belt or spindle See Sec 5 1 3 Take up arm belt installed 3 Check amp re install incorrectly See Sec 5 1 17 Insufficient take up tension 1 Take up tension
30. 1 03T as Fig 49 Push the roller against the tool 3 Loosen the interlocking arm set screw 4 Adjust the position of the interlocking arm and secure the set screw SL Series 5 3 1 TOOL NO 321 03T Fig 48 Fig 49 43 SL II Series 5 3 B 3 2 Interlocking Arm and Stop Plate Clearance 3 Loop Setter Gear And Main Drive Belt Clearance The correct clearance with the function switch in the MIC position is shown in Fig 50 7 When the loop setter gear cycles the tip of the interlocking arm should clear the end of the stop plate Where it contacts the stop plate the clearance is adjusted by slightly reforming the tab on the main interlocking bracket Fig 51 RIGHT ANGLE Fig 51 CAUTION Avoid over bending Too much of a bend will cause the interlocking arm to release too early forming too small a lower loop The correct clearance is indicated in Fig 52 r BELT SUPPORT PLATE Fig 52 LOOP SETTER GEAR 320 18072 0 2 0 3mm MAIN DRIVE BELT 320 15211 321 18211 Insufficient clearance will cause the loop setter roller to be too sensitive or cause it to cycle continuously Too much clearance will cause poor sensitivity and the loop setter will not reset the loop unless the film is severely damaged To adjust simply reform the belt support plate 22 and tighten the mounting screw 44 4
31. 1001 Cam Tank Felt 320 11661 Cam Tank Fulcrum Pin 312 11051 Loop Setter Interlocking Arm Fulcrum 320 18661 Film Guard Plate Spring 321 1745 1 Fig 2 SUGGESTED LUBRICANT Molybdenum Disulfide Grease Molybdenum Disulfide Grease Petroleum Oil Petroleum Molybdenum Disulfide Grease Molybdenum Disulfide Grease or Oil Petroleum Oil Molybdenum Disuifide Grease Silicone Grease SL II Series 2 3 PART 5628 5628 5631 5631 5628 5628 5632 5631 5628 5625 2 4 TROUBLE SHOOTING HINTS A There are four basic steps to trouble shooting this projector 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 See NOTE after Sec D TRANSISTOR NPN TYPE 25 250 OSCILLATOR NOTE EXTENSION CABLE TO PROJECTOR AMP UNDER TEST S1 II Series 2 4 D DIODES P MEE geom lt Fig 25 C 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 iack and the signal path from the input of IC 1a through IC 1b an
32. Claw should not touch the main casting or any other metal parts Re installation can be done by reversing the above procedure Checking the adjustment of claw and No 2 sprocket teeth timing is neces sary and critical See section No 321 4 1 Also check loop setter timing adjustment See section No 321 5 3 t o Fig 7 3 2 AMPLIFIER MODULE 1 Remove flywheel 2 Unplug the rear cover speaker cord 3 for SL 02 SL 2 models only Unscrew the shoulder screw hooking up the OPT MAG switch lever and remove the lever Unplug 5 pin sound terminal connector Unplug MT 9 Pin socket 6 Amplifier is hooked by the two screws Push in on the amplifier s chassis allowing the edge of the chassis to release from under the two Screws mounted in the bottom of the casting Some times a slight pry with a flat blade screw driver may be necessary to remove a stuborn amplifier Slide the amplifier out Fig 9 20 3 3 MOTOR MODULE Remove motor belt Disconnect motor nylon connector s Unscrew 3 screws Remove motor module To re install reverse the above procedures Don t forget to reset the nylon connector s 3 4 TRANSFORMER MODULE Unplug nylon connectors Unscrew 3 screws re install reverse the above procedures Care should be taken that the wires are routed away from any moving parts of the projector SL II S
33. EIKI When the show must go on SERVICE MANUAL MODEL SL II SERIES S N 30001 and up EIKI INDUSTRIAL CO LTD C P O BOX 1229 OSAKA JAPAN 06 311 9475 EIKI INTERNATIONAL INC 27882 Camino Capistrano Laguna Niguel California 92677 714 831 2511 TABLE OF CONTENTS Title PAGE INTRODUCTION 321 1 PRINCIPLES OF OPERATIONS 1 1 Mechanical System ee 15 1 2 Electrical System 2 00 00 oe 009 15 1 3 Sound System rn nte 14 321 2 SERVICE PROCEDURES 2 1 PrecautionS 0 IRR I Ea 16 2 2 Tools And Test Equipment 16 2 3 Lubricants And Lubrication Charts 17 18 1 4 Troubleshooting Hints 2 0 0 eee n n nn 19 321 3 MODULE REMOVAL AND INSTALLATION 3 1 Cam Tank Module 20 3 2 Amplifier Module 20 3 3 Motor Module m mmn 21 3 4 Transformer n n n n 21 3 5 Film Shoe And Bracket Assy Lens Holder Assy And Film Gate 2 32 321 4 MODULE REPAIR AND ADJUSTMENTS 4 1 Cam Tank Module Specifications cicer 23 B Disassembly oia cp tu Eee EY E ERE IE Y 23 C de Pam Er gine ae 24 D Adjustments ne 24 1 Claw Protrusion m mme 24 2 Claw Position And Framing 24 25 E Claw Replacement 2 25 26 Changing Shutter
34. II
35. Loop Setter Tension Springs Correct adjustment of the loop setter tension springs is essential to the proper operation of the automatic loop setter a The loop setter gear spring 320 18061 7 acts as a dampener to the rotation of the loop setter gear Too strong a spring tension will cause a sluggish action of the loop setter while too weak a spring will cause the frequent and erratic action of the loop setter The spring can be adjusted by simply stretch ing or compressing it to obtain a smooth but dampened rotation of the loop setter gear The arm spring 320 18111 11 adjusts the tension of the loop setter arm and roller Too tight a spring will cause the loop setter to be ineffective where too loose a spring will cause erratic rotations of the loop setter gear To adjust the loop setter s tension change the position of the spring arm 12 until the loop setter function operates smoothly SL Series 5 3 B 5 5 Loop Setter Timing To check the loop setter timing load the pro jector with film advance the function control to position 2 and operate the projector While observing the loop setter insert a finger in the upper loop causing the lower loop to loose one frame With only one frame lost the loop setter will not activate Loose one more frame At this time the loop setter should be activated by too small a lower loop causing it to reset the lower loop once only If it requires holding the upper
36. M connected across the load resistor observe the meter while making small adjustments to the three alignment screws in turn until the maxi mum voltage reading is achieved This completes the azimuth alignment With the Oscilloscope connected across the load resistor observe the 7000 2 sine wave at full and low volume Adjust the three head alignment screws until a maximum P P sine wave voltage is ob served When a clean undistorted sine wave at maximum voltage is achieved the alignment is completed This completes the Azimuth alignments 63 SL II Series 6 2 B 2 321 7 LAMP CIRCUIT 7 1 Lamp Circuit A Description The SL projector is designed with a 24 volt AC Quartz Halogen 250 watt ELC lamp A 200 watt EJL lamp may also be used with some reduction in light output A high low switch located in the lamp house allows the selection of either the normal 24 volt or the 22 volt secondary from the transformer B Replacement and Alignment 1 Disconnect AC power cord 2 Remove Lamp House cover 3 Slide out black heat shield cover CAUTION Shield may be hot 4 Push lamp ejection lever to the left and lamp will come out 5 When replacing lamp be sure that it snaps into the lamp socket properly and that heat shield and lamp house cover are re installed 6 For maximum even illumination it may be necessary to adjust the lamp position to allow for slight variations in lamps Turn knurled nut for horizon
37. Noisy rewind gaged 2 Worn or defective rewind gears Rewind gears not fully en gt Adjust position of rewind gears activating lever See Sec 5 5 Replace See Sec 5 5 30 Uneven focus Projector not facing screen at right angles 2 Film shoe not seated properly 3 Dirty film shoe or aperture plate 4 Film not seated in the gate 5 Inner guide rails sticking 6 Defective or incorrect lens uo Correct position for right angle Check amp adjust See Sec 4 5 Clean Check and reload film Remove and clean or replace rail spring See Sec 4 5 Replace SYMPTOM PROBABLE CAUSE_ TV LAMP CIRCUIT SL H Series REMEDY 31 Lamp life is abnormally short 1 Poor lamp socket connection 1 Replace lamp socket 2 Cooling is restricted 2 Locate amp remove 3 Defective lamps or incorrect 3 Check amp replace lamp other than EIKI ELC type 4 Excessive or fluctuating 4 Check AC line line voltage 32 Insufficient illumination 1 Weak lamp or incorrect lamp 1 Check amp replace other than EIKI ELC type 2 Hi low switch in the low posi 2 Switch to Hi position tion 3 Slow or defective lens 3 Try another lens 4 Low AC line voltage 4 Check AC line 25 shutter 5 Check or replace 6 Light heat shield blocking 6 Re align heat shield of the aperture
38. Re connect correctly ternal speaker 6 Poor film recording 6 Check with another film 7 Defective amplifier module 7 Repair or replace See Sec 4 2 42 Excessive wow and flutter 1 Flywheel is not installed 1 Check amp install 2 Insufficient flywheel plate 2 Adjust by bending or replace 1 12 13 Buzz pinch spring tension Buzz pinch roller not riding parallel to the sound drum roller tension spring insufficient Tension roller spring is weak or too strong Uneven take up torque Rear dampening roller tension is weak Defective sound drum bear ings film path rollers not rotating freely drive gears rotating eccentrically Uneven contact of film sound track Film contacts the lower loop setter roller Excessive film lubricant 3 4 5 7 9 10 11 12 See Sec 5 6 Adjust amp correct See Sec 5 4 B 6 Adjust or replace See Sec 5 4 6 Adjust or replace See Sec 5 4 B 7 Repair amp adjust See Sec 5 1 Adjust or replace spring Replace See Sec 5 6 Check amp lubricate See 2 3 Check amp adjust lubricate See 2 3 Check amp adjust See Sec 5 4 See loop setter adjustment Sec 5 3 Clean film and film path 14 321 1 PRINCIPLES OF OPERATIONS 1 1 MECHANICAL SYSTEM EIKI SLOT LOADING projector is controlled by a single lock out
39. TE Turn the knurled nut clockwise until it is tight then back it off one half turn 58 5 6 SOUND DRUM AND FLYWHEEL A Description The sound drum and flywheel assembly s main function is to 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 linear film speed Care should be used when dis assembling or re assembling these precision parts The sound drum shaft 46 isseated in two precision ball bearings 48 which are sealed and factory lubricated The ball bearings are lightly press fitted into the sound hub casting 47 The shaft is secured in place by a set collar 52 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 imperfections in the ball bearing will result in excessive wow amp flutter In the forward direction the sound drum shaft 46 is driven by the tension of the film The flywheel is free to slip on the sound drum shaft during the initial start up of the projector to prevent any possible film damage The flywheel brake 56 mounted on the 2 sprocket shoe interlocking arm SL II Seri 5 6 E stops the rotation of the flywheel instantly when the function switch is turned to STOP so that the film is not scratched by the sound drum which inte
40. aft and should be replaced as part of the cam shaft bearing assy Clean all the old dried molybdenum grease from the cam tank 23 Reassembly Of Cam Tank By Reversing The Above Procedure 1 Make sure curved plate spring is not jammed between the end of fulcrum pin and washer 22 ST 11231 The cam shaft should have no end play Worm gear is mounted without any clearance between the cam tank bearing 4 No end play is allowed for the ball bearings on the cam shaft When overhauling the cam tank it is suggested that the felt oil pad be replaced Re lubricate the cam area with a small amount of molybdenum disulfide grease and moisten the felt with a few drops of molybdenum oil 7 When mounting the 2 bladed shutter it automa tically lines up correctly However a 3 bladed shutter can be positioned 180 out of syn chronization see Sec 321 4 1 F D Adjustments 1 Claw Protrusion Ww e I a pao 1 0 Fig 16 BT M Hh pam m CLAW By Ag UM a Claw protrusion can be adjusted by the ful crum collar As the sliding pin 312 11181 wears the protrusion will increase b Loosen set screw A by 1 8 of turn as indicated in Fig 16 amp 17 Fig 17 SCREW C 24 SL II Series 4 1 D 2 c Turn screw B Loosening screw B counter clockwise increases the claw protrusion Tightening the screw B
41. and spring to the right and be seated as Fig the idler gear 70 This corresponds with the upper 2 Mount the arm 8 on the upper loop loop forming guide roller s position B arm shaft 1 and tighten the screw Fig 64 tentatively 3 Turn the function switch to STOP 4 Make sure the convex mount on the end of the 1 sprocket shoe is seated in the slot of the upper loop arm 1 convex mount Fig 68 5 The tip of the arm 8 should be seated on the plate spring 11 as Fig 69 Tighten the screw of the arm Before 7 Keep turning and set the function switch tightening the screw slightly move the at The arm tip now rotates arm tip to the right as the arm tip will clockwise sliding on the plate spring and retreat with the screw turning is seated as Fig 71 ARM PLATE SPRING 51 8 Push down the upper loop forming guide roller and the arm tip slips off from the plate spring Fig 72 This corresponds with the upper loop forming guide roller s position D Fig 66 The roller should drop down with a little amount of pressure which means the tug of the film in the event of the upper loop being lost 9 Turn the function switch to STOP and see if the arm tip returns to the position of Fig 69 Turn the function Switch and make sure the arm rotates and the arm tip seats in the correct positions
42. anism A 0 5mm clearance between the two mating drive gears is critical for correct rewind engage ment This distance is maintained by fiber washers as indicated adding or subtracting washers as may be necessary to accomplish the desired clearance Too much clearance will result in improper mating of the gears and will REWIND SLEEVE SL II Series 5 5 B 2 damage the gears Too close a clearance will cause the gears to contact in forward resulting in abnormal gear wear and noise With the correct fiber washers the clutch springs should be com pressed with the set collar pushed all the way towards drive gear A and secured with the set screw Fig 93 ORIVE GEAR B LOCK NUT ADJ SPRING DRIVE GEAR SET SCREW DRIVE PULLEY N j CLUTCH SCREW SPRING 05mm 9 KNURLED NUT E SPRING SPRING WASHER SET SCR 7 4 y 2 Rewind Spring Adjustment The knurled nut 26 adjusts the rewind torque Excessive rewind torque will cause the motor belt to slip when rewinding a large full reel too little rewind torque will not rewind a large 2000 reel The correct adjustment is about 2mm of threaded shaft exposed beyond the nut After making the adjustment it is important that the set screw 27 be secured tight FIBER WASHER G1 060100 BACK TENSION CLUTCH CORK Fig 93 E SET COLLAR FIBER WASHER G4 075120 NO
43. change the motor pulley Speed Change Combination Chart Sound amp Silent 50 60Hz Sound Sound 60Hz Sound amp Silent L 24fps amp 18fps 24fps amp 24fps 24fps amp 18fps al 4 Shutter Pulley 320 11321 320 11321 320 11321 Motor Pulley 320 12821 320 12851 7 7 320 12811 Sound 24fps speed 50Hz 24fps speed Sound 24fps speed es H Silent 18fps speed i 60Hz 24fps speed Silent 18fps speed Motor Pulley is shifted the right i 1 3 34 4 4 TRANSFORMER MODULE A Transformer Circuit Diagram 7 SPEC SPEC EXCITER LAMP amp PILOT aX BROWN ____ CAMP aay 110V AMPLIFIER Mese 220V Conan 100V iQ BLUE gt PROJECTION E LAMP eee HI LOW 18 WHITE ov Fig 33 B 9 Pin Nylon Connector Male amp 3 Pin Nylon Connector Female Fig 34 Pin Color of Wire Pinz Color of Wire 1 Brown 18 Orange 2 Yellow 2 Blue 3 3 White 4 5 White 6 Red Black 8 Black 9 34 NZ SL II Series 4 4 C C 9 Pin Nylon Connector Female amp 3 Pin Nylon Connector Male Fig 435 amp 36 Pin Color of Wire Color of Wire Connection To forall220V for all 240V amp type all 110 120V UL CSA type 1 NjC Brown Micro Switc
44. ck 6 Check with another film 7 Defective amplifier module 7 Replace or repair See Sec 4 2 38 Exciter lamp fuse blows 1 Excessive AC line voltage 1 Check 2 Incorrect fuse 2 Check amp replace 3 Incorrect exciter lamp 3 Replace 4 Defective exciter lamp power supply 4 Check amp repair See Sec 4 2 5 Defective exciter lamp 5 Replace 6 Defective exciter lamp socket 6 Replace 39 Amplifier fuse blows 1 Incorrect fuse 1 Check amp replace 2 Improper connection to 2 Check external speaker system 3 Defective amplifier module 3 Repair or replace See Sec 4 2 40 Excessive amplifier hum op 1 Defective exciter lamp supply 1 Check voltage amp repair tical See Sec 4 2 2 Improper connection to ex 2 correctly ternal speaker system Defective solar cell or con nections to amplifier Front or rear cover speaker jacks not insulated from the chassis properly Defective amplifier module 3 Check amp repair 4 Check amp repair 5 Repair or replace See Sec 4 2 ae SOUND SYSTEM SL Series SYMPTOM PROBABLE CAUSE REMEDY 41 Excessive Hum magnetic 1 Motor shield not installed 1 Check 2 Defective magnetic head 2 Replace See Sec 6 2 3 Magnetic head not in contact 3 Adjust with the film 4 Poor shielding to the head or 4 Repair the head coil shorted to the projector s frame 5 Improper connection to ex 5
45. d SOUND SYSTEM SL II Series SYMPTOM PROBABLE CAUSE REMEDY 33 No sound and the exciter 1 Amplifier is not turned on 1 Turn on lamp is not on 2 Function control not in the 2 Check 2 or 3 position 3 9 pin amplifier plug defective 3 Check amp repair or replace 4 Defective exciter lamp 4 Replace 5 Defective exciter lamp socket 5 Replace or repair 6 Exciter lamp fuse blown 6 Check amp replace 7 Slide switch in the mag posi 7 Switch to optical tion 8 Defective amplifier module 8 Repair or replace See Sec4 2 9 Defective exciter lamp power 9 Repair or replace supply of the transformer See Sec 4 4 module 10 Check amp repair or replace 10 Film guard switch is actuated See Sec 5 4 B 2 or open 34 No sound Exciter lamp ison 1 Amplifier volume is too low 1 Check amp adjust i 2 Function switch not in the 2 Check 2 or 3 position See Sec 8 1 3 Sound muting micro switch 3 Check replace or adjust defective or not activated 4 5 pin sound terminal plug 4 Check amp replace disconnected or defective See Sec 4 2 5 Rear cover speaker unplugged 5 Check amp plug in 6 Defective speaker 6 Replace 7 Defective extension speaker 7 Repair or replace jack 8 2 amp fuse blown 8 Replace 9 Defective solar cell or con 9 Repair amp replace nections See Sec 4 2 10 Dirt or foreign object 10 Clean sound optics 11 Defective amplifier module
46. d to 2 Amplifier test cables be easily made from ocally available parts A nine pin miniature tube socket and male plug can be wired as an extension power cable allowing the amplifier to be oper ated away from the projector The solar cell and exciter lamp connection can also be extended if so desired Fig 6 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 VOM will not test the quality of a semiconductor accurately A skilled tech nician will know this but an unskilled technician may be helped by making the VOM check and repairing the amplifier in case of shorted or open transistor OSCILLOSCOPE Mic INPUT SPEAKER Fig 6 19 321 3 MODULE REMOVAL AND INSTALLATION PROCEDURES gt SL II Series 3 2 NE Hos CAM TANK MODULE TRANSFORMER MODULE Ru en g ES Q MOTOR MODULE AMPLIFIER MODULE 3 1 CAM TANK MODULE Turn function switch to MIC position Remove transformer module See Sec 3 4 Remove motor belt main drive belt To remove main drive belt it is easier with the function Switch at STOP position Unscrew the 2 screws supporting the cam tank Remove cam tank slowly and carefully
47. e not correct adjust the vertical or up and down posi tion of the fulcrum assy by slightly loosening screws C Fig 17 The fulcrum assy requires only a very small movement to effect the framing position framing range as indicated cannot be reached check for a worn cam follower or cam glid ing pin 312 11641 Checking Position For Correct Alignment With The Sprocket Holes To view the claws position in the sprocket 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 4 Fig 21 Indicates the correct position of the claw just before the start of the pull down Fig 22 indicates the posi tion after completion of the pull down 5 adjust the claw position move the fulcrum assy horizontal and slightly vertical until the distances a b c d are equal as indicated in Fig 421 amp 22 Upon completion of the position adjust ment tighten the fulcrum assy screws and re check the framing range with the projector running Fig 21 Fig 22 BEFORE PULL DOWN AFTER PULL DOWN k a PERFORATION CLAW b 9 a SL II Series 4 1 E 1 Replacing The Claw When replacing a worn or defective claw it is im portant to mount the claw correctly before securing the mounting screws Incorrect claw
48. e to the operate position The Cam Claw 312 11191 advances to pull down stroke position The Sliding Pin Shaft 320 30451 pushes the Film Shoe Reception Bracket 320 30921 tawards the Film Gate Film Shoe 320 30101 is seated in the Film Gate a Turning Rotary Function Switch to MIC position Rotary Switch Cam 320 60541 rotates to the counter clockwise direction and Main Interlocking Bracket 321 17091 moves to the left Reception Arm 320 17501 hooked to Main Inter locking Bracket with Shoulder Screw 320 17081 moves clockwise which moves the Set Arm 320 17801 and Sliding Pin Shaft 320 30451 Arm 320 15411 on the Shoe Roller Arm 320 15911 moves down and Tension Spring 320 15421 adds tension to Large Shoe Roller 320 15231 Reception Arm 320 17501 turns clockwise releasing the Sound Muting Switch 312 60051 2 Prior to the MIC position the upper loop forming roller 320 17551 kicks upward to form the upper loop The protrusion at the back of 1 Sprocket Shoe 320 17941 gives a soft push as it moves down to its seating position to the Upper Loop Arm 321 17901 and at the last moment drops down after forming the upper loop 2 Arm 320 17461 linked with Upper Loop Arm 321 17901 first slides quickly to the right and seated on the plate spring 321 17451 to form the upper loop roller s top position Then the Arm 320 17461 turns clockwise and slips down from the
49. ector from the power source when servicing 2 2 TOOLS AND TEST EQUIPMENT Tools When servicing EIKI 51 5 ordi nary ISO Phillips type screw drivers and single bladed screw drivers should be enough EIKI Screw Driver Kit P N 5615 are available A Molex extractor tool is most useful when replacing the pins of nylon con nectors to transformer or motor Special Tools EIKI SLILseries have been designed so that no special tools should be required to service the projector However sever al special tools are available to speed up adjustments and maintain a closer consistency between the projectors Tool No 320 01T Cam Claw Protrusion Too see sec 4 1 D LARGE V NOTCH gt SMALL V NOTCH d SL II Series 2 2 320 02T Sound Lens Adjustment Tool see sec 6 1 8 Tool No 321 03T Loop Setter Roller Position Tool see sec 5 3 1 6 5mm Tool No 321 04T Tension Roller Position Tool see sec 5 4 B7b C Test Equipment A limited amount of test equipment is required for routine maintenance and modular replacement However when servicing the individual modules such as the amplifier the following equipment and test films would be essential a b Audio AC VTVM Wow amp Flutter Metter 400Hz SMPTE Test Film 3150Hz Wow amp Flutter SMPTE Test Film Multi frequency SMPTE Test Film go an 16 Vom Voltage Oh
50. eries 3 5 B 3 5 FILM SHOE AND BRACKET ASSY LENS HOLDER ASSY FILM GATE ASSY A Film Shoe and Bracket Assy 1 Set function rotary switch at STOP position 2 Remove the lens holder cover plate assembly 3 4 Pull from the top of the film shoe bracket To reinsert the film shoe and bracket assy slide the pin into the lower slot of the reception bracket and swing the film shoe and bracket assy into the upper slot until the plate spring latches it in place Fig 12 Fig 12 B Lens Holder assy Remove the lens holder cover plate assy 2 Rotate the lens focus knob and advance the lens until rear of the lens clears the film shoe 3 Unscrew the mounting screws 1 on the top 2 at the bottom 4 To re install reverse the procedure Fig 413 Fig 13 91 SL II Series 3 5 C NOTE For USA and Canada type models unti theft lock screw is mounted C Film Gate Assembly 1 Remove the No 1 sprocket shoe roller bushing 2 Turn function switch to position while holding the larger shoe roller intending to come down Keep holding the larger shoe roller turn function switch to STOP position and remove the No 1 film guide 3 Using a long screw driver unscrew the top and the bottom mounting screws Care s
51. et shaft ADJUSTING SCREW SET SCREW 5 5 REWIND SYSTEM 10 A Description In the rewind function the film path is opened allowing the film only to contact the four film guide rollers At the same time the rewind control arm moves the rewind drive gear 14 towards the opposite mating driven gear 22 which in turn drives the set collar 19 via a cork clutch plate which drives the pulley shaft arm belt and arm spindle assy When the drive gears are engaged the function control switches the motor s direction and energizes the main drive motor The large drive gear tension spring 15 provides the tension keeping the drive gears A 14 amp B 22 from engaging during forward The smaller back tension spring 17 maintains a small amount of back tension to the supply reel The rewind spring 25 sets up the rewind clutch tension by supplying pressure to the sleeve plate 24 the cork clutch liners 21 which in turn transmits the rewind drive from drive gear A to B and to the drive pulley shaft belt and spindle Fig 91 92 320 13511 DRIVE GEAR 32018111 TENSION SPRING 320 17091 PLATE 320 15601 TENSION GEAR 57 SL II Series 5 5 A 320 15401 IDLER GEAR 320 19121 REWIND CONTROL ARM 320 19311 REWIND PUSH LEVER 3220 60541 ROTARY SWITCH Fig 92 Adjustments 1 Rewind Mech
52. g Head assy 321 40701 7 2 Sprocket Shoe 320 16501 swings up and is seated 2 Shoe Roller 320 16221 Large Shoe Roller 320 17561 and Guide Roller 320 17441 are also seated 7 2 Sprocket Shoe Interlocking Arm 321 16701 connected with a Shoulder Screw to the Main inter locking Bracket is pulled and moves to the counter clockwise direction pushing up 2 Sprocket Shoe 320 16501 Flywheel Brake assy 321 16301 moves away and now Flywheel is free to rotate 8 Rear Dampening Roller 320 17441 swings up to operate position Rear Dampening Roller Arm 321 16921 swings clockwise as the Main Interlocking Bracket recedes the left Spring 320 17292 gives tension to the roller 32017441 48 SL H Series 5 4 B 1 Projector s Front Side Loading Path Projector s Rear Side Main Interlocking Bracket Mechanism REWINDING MECHANISM Rotary Function Switch is turned to Rewind position Function Switch Cam turns to the clockwise direction pushing up Rewind Push Lever 320 19311 which simulta neously pushes up Rewind Control Arm 320 19121 Rewind Control Arm now fits in the groove of Drive Gear 320 13511 engaging the counter Driven Gear 320 13521 B Adjustments b Closed position Loosen the two set 1 1 Sprocket Shoe And Roller Assy Fig 60 61 screws on the reception arm directly behind The 1 sprocke
53. ge and also to the electrical safety requirements of each country The secondary windings of all transformers provide 8V AC to the pilot lamp and exciter lamp circuits 36V AC to the amplifier SL Series 1 3 24V AC high and 22V AC low to the halogen projection lamp Motor ON OFF Lamp ON OFF and Rewinding can be controlled by the function switch which consists of a cam bracket and 4 micro switches The function switch cam also mutes the audio during rewind the STOP or threading posi tion The projection lamp is a HALOGEN ELC type 24V 250W Inside of the lamp house is a high low switch to help extend the lamp life In the high position average lamp life is approximately 50 hours and at the low position about 150 hours NOTE The HALOGEN LAMP EJL type 24V 200W may also be used with some re duction in light output The motor is an induction type with capacitor Motors are available for all the voltage ranges 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 individual countries listed 1 3 SOUND SYSTEM EIKI SLII series models are designated according to the sound playback capabilities and front cover extension speakers Optical Playback only Model 51 0 SL 1 Optical amp Magnetic Playback Model SL 02 SL 2 Note EIKI SL does not offer magne
54. h 1 Brown AC Terminal 2 2 Brown N C Micro Switch 1 Brown AC Terminal 42 3 N C N C N C 5 Yellow Yellow AC Terminal 43 6 Orange Orange MT 9 Pin Socket 2 7 Blue Blue MT 9 Pin Socket 5 8 Blue Blue MT 9 Pin Socket 4 9 Orange Orange MT 9 Pin Socket 1 Fig 35 Fig 36 Pin Color of Wire Connection To 1 Red Lamp Hi Low Switch Lamp 2 Blue Lamp Hi Low Switch Lamp 3 White Micro Switch 2 Lamp 35 SL Series 4 5 A 2 4 5 FILM GATE ASSEMBLY 1 Description A Aperture Plate Film Gate Assy The aperture plate 4 is mounted on the gate plate 1 by two nuts and can slide up and down for framing adjustment The outer guide rail Fig 37 SELL APERTURE PLATE 8 is fixed to the gate plate by two screws The movable inner guide rail 13 is mounted by two ilo n shoulder screws and adjusted by the side pressure 9 spring 15 The side pressure control lever 10 is linked to the film loading mechanism controlled by the function switch opening and GUIDE closing the inner guide rail SIDE PRESSURE 2 Adjustment CONTROL LEVER a Tension of the Side Pressure Spring The proper tension is about 60 75g Ex cessive tension will cause earlier film wear while insufficient tension causes an unsteady FRAMING EEVER iu picture The adjustment of tension can be di made bending or straightening the spring
55. he film perforations causing film jitter c Correct claw angle is shown in Fig 26 A Under some circumstances a bent claw lever as shown in Fig 26 B and C may have to be corrected by straightening out the claw Fig 26 3 Claw Lever Tension See Fig 25 The claw fever tension force should be from 1 2 to 1 25kg when the spring is stretched to tie 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 or cause a slight hesitation to the claw lever when the projector is initially started To obtain the correct tension it may be necessary to replace the spring A slight adjustment can be made by stretching the spring if necessary SL II Series 4 1 F F Changing Shutter Blades Fig 27 LOWER GHOST 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 adjustment 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 for minimum upper or lower image movement as shown in Fig 527 Since the ad justing screws are only accessible with the ca
56. hould be taken not to touch the claw 4 Remove the side pressure control lever 5 To re install reverse the above procedures Fig 14 NOTE should be taken to insure that the Inner Guide Rail interlocking system is working properly See Section No 321 5 4 5 2 321 4 MODULE REPAIR AND ADJUSTMENTS 2 A 1 1952 COMI Cam Claw Protrusion MIN 4 1 CAM TANK MODULE Specifications Revolution 24 FPS 1440 RPM 18 FPS 1080 RPM 1 0mm MAX 1 2mm 040 to 045 Claw Pitch 7 64 7 67mm Tension of Claw Lever Spring 312 11161 1 2 1 25kg NOTE Tension of claw lever spring is measured with a tension scale pulling on cam claw and the claw lever spring stretched to maximum Disassembly of Cam Tank Fig 15 Unscrew the screw 45 at the end of the cam shaft 3 3 4 SL II Series 4 1 B Remove shutter pulley 42 and the shutter blade 40 Unscrew three screws 39 and remove cover plate 38 A hole in the curved plate spring 24 fits over fulcrum control pin 14 Unscrew the screw 21 and remove curved plate spring Unhook the claw lever spring 32 and remove claw lever assy 25 6 To remove cam 9 and cam plate 8 unscrew se the three set screws 10 To remove cam shaft assy remove inching knob 6 and worm gear 4 replace the cam tank bearings the inner bearing is pressed on the cam tank sh
57. ions recorded on the film Fig 97 SOUND FOCUSING PRO Fig 597 PUR 27 EXCITER LAMP BRK 1 Li LENS 7 SOUND TRACK AMP SPK SOLAR CELL JI 1 VOLUME SL Series 6 1 B 2 B Sound Focus Alignment Procedure 1 Tools and Equipment Required a Screw driver set 150 b Sound lens adjustment tool Tool No 320 02T Fig 99 c SMPTE sound focus test film 7000Hz 4 SMPTE buzz track test film AC VTUM audio range and or f Oscilloscope 5 30 watt dummy load resistor External speaker front cover Eee 4mm 30 Fig 99 SOUND LENS ADJUSTMENT TOOL 2 Set up Procedure Remove the lamp house cover light shield and lamp b Load a SMPTE test loop c Turn the function control position 4 Loosen a screw mounting sound lens holder assy and remove the lens holder assy e Insert the Tool No 320 02T on the larger barre of sound lens and tighten a set screw on the tool Fig 4100 CLAMP SCREW f Loosen a sound lens lock screw and mount the sound lens clamped to the tool to the lens holder assy g Mount the sound lens holder assy to the projector s casting and tighten the mounting screw Fig 101 60 NOTE Keep 0 5mm distance from the casting Fig 102 NOTE The top of the adjusting screw should not touch the casting Fig 102 PROJECTOR CHASSIS Fig 102 0 5mm ADJUSTING SCREW 3
58. itions as indicated ud g This completes the Sound Focus adjustment Clamp the sound lens clamp screw and test with a good sound track film 4 Buzz Track Adjustment Procedures a Connect an extension speaker to the speaker jack Load an SMPTE buzz track test film loop with the emulsion side towards the film shoe c Turn the function control switch to the No 2 position d Turn the amplifier volume and tone controls to maximum clockwise and listen for a clear 1000Hz tone e Adjust the buzz track alignment screw clock Fig 104 DISTORTED c wise until the 1000Hz tone is inaudible and a 300Hz tone becomes audible AC VOLTAGE METER Fig 103 OSCILLOSCOPE SPEAKER PLUG DUMMY RESISTOR SPEAKER 61 f Turn the set screw counter clackwise until neither the 300Hz or the 1000Hz tone is audible indicating correct buzz track align ment Re check the 7000Hz sound focus alignment Remove the exciter lamp Remove the lens adjustment tool Re install the exciter lamp and wipe off any fingerprints Pu 6 2 MAGNETIC SOUND PLAYBACK SYS TEM A Description Models SL 02 and SL 2 in addition to the standard optical sound reproduction are equipped with optional magnetic track 100 mil playback only The opt mag slide switch on the amplifier effects this conversion by switching the input to the amplifier while at the same the magnetic playback head into position against the films mag
59. licone Oil 10 Silicone Oil 100 Silicone Oil 100 Silicone Oil 10 Silicone Oil 10 5628 5631 5632 5629 5629 5632 5632 2 3 LUBRICANTS amp LUBRICATION CHARTS 8 2 OOOO C CQ QD ITEM DESCRIPTION 16 17 18 19 20 21 22 23 24 25 26 27 2 Sprocket Shoe Guide Roller Hole 320 17441 Rear Dampening Tension Roller Hole 320 17441 Take Up Arm Drive Gear 320 14501 Flywheel Hole 320 41051 Loop Setter Gear Hole 320 18072 Function Main Interlocking Bracket at each contact 321 17091 Function Rotary Switch Shaft Supporting Plate 320 60711 Tension Gear Hole 320 15601 Rewind Push Lever Slotted Hole 320 19311 Wrom Gear assy 320 11501 Rewind Controt Arm Fulcrum 320 19121 Rewind Drive Gear 320 13511 SUGGESTED EIKI LUBRICANT PART Molybdenum Disulfide Grease Silicone 10 Silicone Oil 100 Silicone Grease Silicone Oit 100 Silicone Grease Molybdenum Disulfide Grease Silicone 100 Silicone Grease Silicone Grease Silicone Grease Silicone 1000 5628 5632 5629 5625 5629 5625 5628 5629 5625 5625 5625 5630 18 28 29 30 31 32 33 34 35 36 ITEM DESCRIPTION Gear Shaft 320 15291 Idler Gear 320 15401 Supply Arm Spindle Shaft 320 13201 Take Up Arm Spindle Shaft 320 14201 Cam Tank Module 320 1
60. loop 1 Damaged film 1 Check film 2 Loop setter is continually 2 See loop setter activated See Sec 5 3 3 1 sprocket plate loose 3 Check amp tighten 4 21 sprocket shoe rollers are 4 Check amp adjust not seating properly 5 1 sprocket shoe position is 5 Check adjust incorrect 6 Supply arm back tension too 6 Check amp adjust strong See Sec 5 2 21 Loss of lower loop 1 Damaged film 1 Check film 2 Excessive film lubricant 2 Clean film and film path 3 Main drive belt off or broken 3 Check or replace 4 Too much take up torque 4 Check amp adjust See Sec 5 1 5 Loop setter continues to 5 See loop setter activate 5 3 6 Insufficient claw protrusion 6 Adjust See Sec 4 1 7 Film shoe tension spring too 7 Check amp adjust strong See Sec 4 5 8 2 Sprocket shoe position is 8 Check amp adjust incorrect 22 Excessive film gate noise 1 Damaged or poor film 1 Check film 2 Emulsion and dirt build up on 2 Inspect amp clean the film shoe or aperture plate 3 Incorrect claw protrusion 3 Adjust See Sec 4 1 4 Weak film shoe springs or film 4 Check and adjust shoe not seating properly See Sec 4 5 5 Incorrect claw alignment 5 Check adjust or replace defective claw See Sec 4 1 6 Cam arm spring weak or 6 Check or replace broken See Sec 4 1 7 Worn cam follower 7 Check and replace gliding pin See Sec 4 1 8 Inner guide rail dirty worn 8 Clean and adjust or
61. loop for more than two frames to activate the lower loop the lower loop 15 too large If the lower loop is always in contract with the loop setter roller the lower loop is too small The correct lower loop should not come in contact with the loop setter roller but at the same time the loop setter should easily activate when two frames of defective sprocket holes pass through the film gate a To increase the size of the lower loop looser the 2 sprocket cover screw and rotate the sprocket teeth plate in the counter clockwise direction until the correct size lower loop is TO INCREASE Fig 54 b To decrease the size of the lower loop loosen the 2 sprocket cover screw and rotate the sprocket feeth plate in the clockwise direction Fig 55 In the event of over correction refer back to step a TO DECREASE Fig 55 45 5 4 LOADING MECHANISM A Description mechanical functions seating the film around the sprokects forming the upper and lower loops and closing the film gate are accomplished by a single rotary function switch The action of the function switch activates a series FILM LOADING POSITION STOP Fig 56 SL Series 5 4 A 1 of levers cams and roller arms in the sequence described below 1 When the function switch is at the STOP position the film loading path is fully open and the 1 and 2 sprocket shoe rollers are away from the sprocket
62. m tank removed this becomes a trial and error adjust ment However the skilled technicians can ac complish this in one or two adjustments AXIS PULLEY LUAM BLADE Fig 28 Fig 28 Illustrates the correct position for in stalling and adjusting the shutter blades To position the blade correctly rotate the cam tank until the large lobe with the three holes is at the top and the pulley keyway is parallel to the bottom of the cam tank case Install the pulley an blade with the edge of the prime blade bottom blade along the axis as indicated by the dashed line The curved edge of the blades should curve away from the cam tank If the blades have been removed from the pulley it may be necessary to reposition the blade on the pulley to achieve this synchronization In each case position the blades with the curved edge away from the cam tank and the prime blade in line with the axis 4 2 AMPLIFIER MODULE Refer to Amplifier Circuit Diagrams for the follow ing A Specifications Solid State 1 IC 8 transistors Output Power 15 watts RMS 8 ohm load Distortion Less than 5 at 400Hz Less than 3 at 1KHz 4 Wow Flutter Less than 0 2 WRMS 5 Frequency Response Optical SOHz 7000Hz 4db Magnetic 50Hz 12000Hz 4db S N ratio of the amp 60db MIC input impedance 600 ohm and up Hi Z MIC input level max Speaker Jacks 8 ohms Aux output 10K chm Hi
63. m meter Oscilloscope 7000Hz Sound Focus SMPTE Test Film 7000 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 ITEM DESCRIPTION 1 1 Sprocket Shoe Guide Roller 14 320 15731 1 Guide Roller Hole 320 17551 2 1 Sprocket Drum Shaft 320 15301 Upper Loop Forming Guide Roller Hole 320 17551 Set Arm Fulcrum Pin 320 17211 Lower Loop Setter Roller Hole 320 18021 Lower Loop Setter Arm Fulcrum 320 18501 Buzz Roller Hole 321 17411 SUGGESTED EIKI LUBRICANT PART Silicone Oil 10 Molybdenum Disulfide Grease Petroleum Oil Molybdenum Disulfide Grease Silicone Oil 100 Molybdenum Disulfide Grease Silicone Oil 100 Molybdenum Disulfide Grease 5632 5628 5631 5628 5629 5628 5629 5628 47 8 10 11 12 13 14 15 ITEM DESCRIPTION Buzz Roller Arm Fulcrum 321 17421 Mag Head Arm Fulcrum 321 40501 Tension Guide Roller 13 5mm Hole 321 17571 Tension Guide Roller Arm Fulcrum Pin 321 17851 2 Sprocket Shoe Arm Fulcrum 320 16501 2 Sprocket Shoe Guide Rotler 14 5mm 320 16221 2 Sprocket Shoe Larger Roller Hole 320 17561 Fig 1 SL II Series 2 3 SUGGESTED EIKI LUBRICANT PART Molybdenum Disulfide Grease Petroleum Oil Si
64. nds to keep turning During projection the brake is off away from the flywheel Fig 95 96 B Adjustments The ball bearings are life time lubricated and lightly presses into the hub 47 The amount of shaft 46 end play should not exceed 0 2mm and is determined by the set collar s 52 position Care should be taken not to bend the shaft or lubricate the bearings Bearings are factory lubricated and should be replaced if defective Defective incorrect lubrication of the bearings will result in excessive wow and flutter The plate spring 54 tension may be adjusted for minimum wow anc flutter with the screw secured Whenever removing the spring and flywheel is necessary care shoulc be taken to avoid changing the plate spring tension Fig 95 amp 7 5976 59 321 6 SOUND PICK UP SYSTEM 6 1 OPTICAL CEDURE A Description Models 51 0 and SL 1 are optical sound playback only models SL 02 and SL 2 are both optical and magnetic playback The optical pick up system resembles a small projector within a projector consisting of a light source a lens an image and a screen or target 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 change which is amplified and converted into acoustical variation or sound directly related to the photographic variat
65. netic sound track time moving B Magnetic Alignment Procedure 1 Tools and Equipment Required a Screw driver set Iso b Magnetic Azimuth 7000Hz alignment SMPTE test film loop c Pliers d AC VTVM Audio Range and or e f Oscilloscope 8ohm 30 watt dummy load resistor g External speaker front cover 2 Set Up Procedure a Remove lamp house cover b Set the function control to STOP Load the magnetic test loop oxide side toward the head d Turn the function control to MIC SL II Series 6 2 B 2 Slide the mag opt switch to mag Connect the output of the amplifier to the dummy load resistor Connect the AC VTVM and or the Oscillo scope across the dummy load h Turn the function control to No 2 operate position and check for the correct engage ment of the magnetic head and the rubber roller Turn the volume and tone controls to the maximum clockwise position Holding the magnetic head with the pliers coarsely adjust the three screws adjustment screws for the correct position as shown in Fig 2104 The head should also contact the film parallel as illustrated in Fig 105 Fig 106 Fig 107 CORRECT INCORRECT INCORRECT HEAD HEAD SLIT 1 2 3 CORRECT INCORRECT INCORRECT 62 To precisely adjust the head azimuth using the AC VTVM or Oscilloscope 1 With the AC VTV
66. o form the enough upper loop SL Series 5 4 B 2 Position D When the upper loop is lost due Fig 66 to the bad film with a series of damaged perforations by more than 4 frames the loop forming guide roller is pulled by the film and moves to this position D As the roller moves to this posi tion the film guard is activated at the same time and shuts off the power stopping the pro jection to protect the film from the further damage To re start the projection turn the function switch to STOP then back to 3 position Position C As keep turning the function Fig 65 switch to or 2 3 positions the roller comes down and stays at this position ready to activate the Film Guard switch should the upper loop be lost Note the distance between the roller and 1 sprocket cover plate s edge should be about 20mm b Adjustment The upper loop arm assy when inserted into the hole of the main frame casting without being engaged with the plate spring should be free to rotate Check for a 5 smooth rotation MS 12 11 10 gt P ey a SL Series 5 4 8 2 The position of the film guard arm 8 is 6 Turn slowly the function switch to important and very critical MIC to watch the movement of the To adjust arm tip which should slide on the plate 1 Remove the 1 sprocket gear assy
67. of the cam claw retraction mechanism will result in some type of abnor mal noise during forward or rewind without film 1 Rewind If the claw does not clear the shutter locate the bent shutter blade and re form to ciear the claw 2 Forward Check the position of the reception arm as described in Sec B 1 b Lower Loop Forming Mechanism Refer to section 321 5 3 Lower Loop Setter Sys tem To check for correct adjustment of the loop setter roller load a film and observe that the film is not in contact with the film shoe aperture plate rubber rollers sound drum and solar cell case Buzz Roller Tension and Position Fig 77 a During normal projection the buzz roller 20 firmly holds the film against the sound drum by the tension of spring 25 The position of the buzz roller and its tension is critical for minimum wow and flutter In STOP and REWIND it must be clear from the film path It is also important that there is no end play The end play of the buzz roller will cause variable or poor sound tracking See section 321 6 joz Fig 77 a pO A 252 a 5 1 Se IN Fig 79 MIC c To adjust the buzz roller tension and position remove the function knob and control pannel The re install the function knob and turn the knob to the MIC position Parallel to the base of the projector 1 Unhook the tension spring
68. on near the main drive belt In this position the loop setter is ready to be activated by any small amount of film pressure against the loop setter roller When the loop setter roller is activated the loop setter gear engages with the main drive belt causing the eccentric gear to cycle the loop setter mechanism pulling down the film from the gate thus forming a new loop In Rewind and Stop the lower loop setter roller is locked in position to guide and dampen the tension of the film during high speed rewind 42 Adjustments 1 Position of the Lower Loop Setter Roller With the function switch in the Stop position the loop setter roller must lock into the position as in Fig 47 Fig 47 To check for the correct position of the loop setter roller set the function switch at STOP The distance between the outer edge of the roller and the main frame casting should measure 4 5mm In this position the film should clear the aperture plate the film shoe and sound drum when rewinding To adjust the roller posi tion set the function switch to STOP Loosen the set screw on the loop setter interlocking arm position the loop setter roller 4 5mm up fram the main frame casting as Fig 47 Then tighten the set screw To obtain the correct position of the loop setter roller tool No 321 O3T 48 may be used 1 Set the function switch at STOP 2 Apply the tool No 32
69. otor runs but lamp does not come on in switch position 3 gt Ew aw Defective lamp Lamp is not seated in the socket properly Defective lamp socket Faulty micro switch 2 Open Hi low switch Open transformer lamp con nection Defective transformer module gt gt Replace lamp Check and reseat Repair or replace Check or replace See Sec 8 1 Check or replace Check and repair See Sec 4 4 Replace See Sec 4 4 SYMPTOM ELECTRICAL SYSTEM PROBABLE CAUSE SL Series REMEDY 4 Motor does not operate in the rewind position operates in forward Defective motor Faulty micro switch 3 4 wiring Mechanical linkage loose or out of adjustment connector Replace See Sec 8 1 Check and repair See Sec 4 3 Check and repair See Sec 5 4 5 Function switch does not fol low the indicated sequence T Loose function switch knob Loose micro switch cam Mechanical linkage loose or Reposition and tighten Reposition and tighten Check and repair See Sec 5 4 SL II Series LOADING SYSTEM SYMPTOM PROBABLE CAUSE REMEDY 6 Function control switch does 1 Loose function control knob 1 Reposition and tighten set not open the film path screws 2 Function switch cam is worn 2 Replace re adj
70. over CLUTCH CAM DRIVE GEAR CLUTCH CLUTCH COVER DRIVE GEAR 5 2 SUPPLY ARM Description 12 During forward the supply arm only serves as a drag to provide a small amount of back tension to the film The amount of back tension is controlled by spring 17 s tension For a more complete description of the supply arm refer to the rewind section B Adjustments None 41 SL II Series 5 2 5 3 LOWER LOOP SETTER SYSTEM A Description The lower loop setter mechanism is an integral part of the loading mechanism which is controlled by the function switch At the STOP position the loop setter gear 9 is raised up away from the main drive belt The loop setter arm 1 and the lower loop setter roller 2 is locked in the down position functioning as the lower loop former while loading the film Rotating the function switch to the MIC or 2 position the stop plate 17 is pushed to the left by the right angle tab of the main interlocking bracket until the loop setter interlocking arm 5 is released away from the stop plate 17 While the right angle tab on the interlocking bracket is pushing the stop plate the film is seated in the 1 sprocket shoe SL II Series 5 3 A Fig 46 and the film gate is completely closed The loop setter roller is then raised up away from the film and the loop setter gear is lowered into positi
71. plate spring 3 The last moment before the MIC position Loop Setter Arm 320 18501 moves up and Loop Setter Roller 320 18021 is at the operate position Convex tip of the Main Interlocking Bracket pushes the Stop Plate 321 18131 to the left which stides and releases the Loop Setter Interlocking Arm 321 18601 Loop Setter Gear 320 18072 moves down near the Main Drive Belt Spring 320 18111 maintains tension to the Loop Setter Interlocking Arm 4 Buzz Roller Arm 321 17391 swings down counter clockwise and the Buzz Roller 321 17411 rides parallel and tight against the Sound Drum 321 41011 Buzz Roller Interlocking Arm 321 17031 is released from blocking the Main Interlocking Bracket and Spring 321 17441 adds tension to the Buzz Guide Roller 321 17411 5 Tension Arm assy 321 17601 swings down clockwise and the Tension Roller 321 17571 moves down parallel and close to the Sound Drum 321 41011 Tension Interlocking Arm 321 17111 linked with Tension Arm 321 17811 turns counter clockwise and is released in the middle of the slot of the Main Inter locking Bracket Spring 321 17121 gives tension to Tension Roller 321 17571 6 SL 2 02 Mag Models only Mag Head assy 321 40701 swings down to contact the Mag sound track Mag Head Interlocking Plate A 321 40051 linked with Mag Head Arm 321 40501 moves down Spring 321 40251 gives tension to the Ma
72. s CORRESPONDING MAIN INTERLOCKING BRACKET MECHANISM IN THE STOP POSITION Fig 57 44 Km 9 24 2 When the function switch is at the MIC or No 2 3 position the loading mechanism is closed forming the upper and lower loops while seating the film in 1 and 2 sprockets OPERATION POSITION 429437 2 E CORRESPONDING MAIN INTERLOCKING BRACKET MECHANISM IN THE MIC POSITION Fig 59 5 Nie 9 22 mie 2 sn 81 Series 5 4 A 3 3 OPERATIONAL SEQUENCE OF THE LOADING MECHANISM T Projector s Front Side Loading Path Projector s Rear Side Main Interlocking Bracket Mechanism Turning Rotary Function Switch to MIC position 1 Set Arm 320 17801 moves down by 40 pulling down 1 Sprocket Shoe Interlocking Bracket 320 17511 1 Sprocket Shoe Interlocking Bracket pulls down 1 Sprocket Shoe 320 17941 and 1 Shoe Roller Arm 320 15911 Shoe Roller large 320 15231 1 Sprocket Shoe Roller 3231 15731 move down and seat in the proper position As 1 Sprocket Shoe Interlocking Bracket is pulled down at the same time Side Pressure Control Lever 320 31411 pushes and makes the Inner Guide Rail 320 31111 releas
73. springs c Film Shoe Position With the gate closed the film shoe should line up along the edge of the outer guide rail 8 and seat evenly against the aperture plate To g adjust the position of the film shoe close the film gate by setting the function control to 9 13 the MIC position Loosen the two screws 10 6 and align the film shoe with the outer 2 guide rail making sure that the shoe is flat 2 against the aperture plate and secure the screws 6 Fig 40 2 Removable Film Shoe and Bracket Assembly The spring loaded film shoe 1 is mounted to a bracket 3 and is easily removable as an as sembly for cleaning and servicing the film gate The film shoe and bracket assembly is then seated in the reception bracket 7 The recep tion bracket is linked to the loading mechanism which opens and closes the film gate as the function switch is activated 321 5 GENERAL MECHANICAL SERVICING AND ADJUSTMENTS 5 1 TAKE UP ARM Description ei The drive to the take up arm is obtained through the take up clutch mechanism items 23 26 during normal forward projection During rewind the motor is reversed disengaging the clutch cam 24 removing all drive to the take up arm In forward the drive is transmitted via the drive pulley 4 to the arm belt and the take up spindle 11 The SL II Series 5 1 Fig 41 amount of take up torque is controlled by the friction of the belt
74. t plate is spring loaded with the set arm shaft Push down on the 1 limited travel to assist the film in seating around sprocket film shoe assembly to make sure that the sprocket drum the film shoe rollers are completely seated Check to be sure the sprocket plate is moving around the sprocket Tighten the set screws freely before proceeding with the loading Fig 62 mechanism adjustments See Fig 60 NOTE No end play is allowed for 1 Sprocket a Loading position In the STOP position the shaft shoe roller should be in contact with the top PUSH DOWN inside of the 1 sprocket shoe cover assy The spring tension keeping the shoe roller up during film loading can be adjusted by the position of the arm mounted to the end of the shaft of the shoe roller arm AND ARM UP AGAINST THE SHOE COVER LARGE SHOE ROLLER i Fig 61 TENSION SPRING Fig 62 RECEPTION ARM SET SCREWS SET SCREWS 49 2 Upper Loop Forming Roller And Film Guard a Function The position of the upper loop forming guide roller is determined by the position of the function switch Position A The function switch is at STOP Fig 63 position for the film loading or for the rewinding 1 Fig 763 Position B This is the actual upper loop Fig 64 forming position When turning the function switch from STOP to MIC the upper loop forming guide roller kicks upward t
75. tal adjustment 321 8 ELECTRICAL SYSTEM 645 8 1 Electrical System A Function Switch OE Type of Switch amp Part Function 51 15 1 312 60051 Motor SW 2 V 15 1A3M 312 60051 Lamp SWe3 V 15 1A3M 312 60051 Rewind SW 4 V 15 1A3M_ 312 60051 Rewind Wire Colour Type Connected to 1 Black AWG 22 Motor 6 Pin Connector 2 AWG 22 Motor 6 Pin Connector 3 Yellow AWG 22 Motor 6 Pin Connector 4 Brown AWG 22 Motor 6 Pin Connector 5 White AWG 18 Lamp HI LOW Switch 6 Brown AWG 22 Transformer 9 Pin Connector 7 White AWG 518 Transformer 3 Pin Connector SPARK ABSORBER Fig 108 B Electrical Circuit Diagrams Electrical Schematic Electrical Block Diagram See the end of this manual SL Series 321 9 SERVICE UPDATES AND MODIFICATIONS EIKI 51 has had several modifications Al 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 SL Series 70060611 79 LID em PA 9159 O 1S FEX MEIN WEe WEED p NS WLS N08 LNIWLSLGY EY tus YIN 6 0 vr Fx
76. ts refer to SL II replacement parts list EIK SL II Series projectors may in the future be improved or modified Modifications made after the issue of this manual will be covered by Serivice Updates copy of all of the pertinent diagrams attached at the end of this manual CAUTION Care must be exercised to avoid electrical shock while servicing the projector MAJOUR IMPROVEMENTS APPLICABLE FROM SL II SERIES 15 2 3 The upper loop forming system is improved forming and keeping a larger upper loop The lower loop forming system is improved forming and keeping a larger lower loop Sound drum system like series is used The conventional rubber pinch roller has been deleted and the buzz roller with tension spring loaded activates also as the pinch roller on the sound head Wow and flutter is minimized The adjustment of wow and flutter is easier since less parts are used in the film path near the sound head The rear dampening tension roller is given more allowance to move freely to absorb the jerky take up and minimize wow and flutter The flywheel brake is added to stop instantly the flywheel and the sound drum rotation at STOP position The front cover is fitted firmly on the projector so that the cover would not come off too easily in transit or when the cover is pushed up The lamp house door has more ventilation holes on its top to cool down heated parts more efficiently
77. ust or loose on the shaft 3 Incorrect lens 3 Check if SL type lens 4 Film shoe reception arm is 4 Adjust and tighten loose See Sec 5 4 7 Function switch does not 1 Loose function control knob 1 Adjust amp tighten close the film path in the 2 Function switch cam is worn 2 Replace reposition amp tighten MIC position or loose set screws See Sec 5 4 3 Film shoe reception arm is 3 Reposition and tighten set loose screws See Sec 5 4 4 1 sprocket shoe assembly 4 Check for proper alignment does not close amp adjust See Sec 5 4 8 Film will not thread properly 1 Sound drum buzz pinch roller 1 Check for loose mechanical over the sound pick up area not releasing in the STOP linkage position See Sec 5 4 2 Sound drum tension roller 2 Check roller if loose re may be out of position align amp tighten screws See Sec 5 4 9 Film does not engage at the 1 Sprocket shoe roller tension 1 Replace 1 sprocket spring broken or off See Sec 5 4 10 Upper loop is not formed 1 Upper loop roller arm is out 1 Adjust amp correct position correctly of position See Sec 5 4 B 2 2 Film guard arm is out of 2 Adjust amp correct position position See Sec 5 4 B 2 3 Deformed plate spring 3 Replace See Sec 5 4 B 2 11 Lower loop is not formed 1 Loop setter roller is not posi 1 Adjust correctly tioned correctly See Sec 5 3 2 Loose loading mechanism not 2 Check and repair activating the loop
78. z 130mv nominal Why FUSE2ZA SL II Series 4 2 B B Amplifier Power Supply Circuit AC power to the amplifier is supplied from the 36V AC secondary windings of the transformer through pins 1 amp 2 of the 9 pin socket MT 9P dual diodes D6 amp D7 for a bridge rectifier filtered by capacitor C 28 providing the amplifier voltage of approximately 49V DC The 8V AC transformer secondary winding supplies AC exciter lamp voltage through pins 4 amp 5 of the 9 pin socket Dual diodes D4 DS form a bridge rectifier which is filtered by capacitor C33 C32 C34 are ripple filters regulating the base input voltage to TR7 R45 is a current sense resistor serving as feedback to TR7 s base TR7 acts as a series regulator with a voltage sense from TR8 to maintain the 3 5 volt DC exciter lamp voltage In magnetic playback the base input voltage to TR7 is held at OV turning TR7 OFF 3 5 volt DC Exciter Lamp voltage is routed through pins 3 8 9 of 9 pin socket to the exciter lamp Fig 29 227 Audio Amplifier Circuit The input signal from the solar cell or magnetic lead is accomplished through the 5 pin connector to the appropriate loading circuit See Amp Diagram or Amp Block Diagram R1 presents a 10K impedance load to the solar cell in optical playback R2 C2 R5 C7 R7 and R6 form an input equalizer network C5 C15 prevent a AN264 from self oscillating at high

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