ELMO - Projector - ST1200 - Service Manual - Digital
Contents
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4. MACHINE FRAME Cont d Case Step Point Remark Auto threading Solenoid lever Adjust the position of Solenoid lever so that P 13 mechanism cannot 4 32 Loop former lever assy may be released be released Film loop moves to Lateral guide 1 2 Increase the spring tension of lateral guide upper side P3 35 spring to prevent the movement of film loop Slide plate Bend Slide plate upward to prevent the 39 movement of film loop Lower film loop Fly wheel Increase the spring tension of Fly wheel spring cannot be performed 5 24 Pad roller Adjust the position of Link lever spring so that 16 P5 64 the tension of Pad roller may be increased Tension roller Move the position of Balance lever spring so P 16 P5 63 that the film may not be stretched downward excessively Motor switch knob Reverse lever If Reverse lever has been interrupted and P 12 cannot be turned P6 20 deformed by AMP holder 2 replace or fix Reverse lever and also cut off the portion of AMP holder 2 to not interrupt the movement of Reverse lever Film has been Clutch Adjust the position of Clutch lever 1 assy at P 10 feeded during still mechanism the same time adjust the position of Clutch projection P7 8 link adjuster as well as Clutch lever 2 assy to convey the rotation of Motor assy during both 18 f s and 24 f s projection 25 E SOUND Case Step Poi
5. 4 TAKE UP GUIDE Fig 4 Fig 4 DISASSEMBLY 1 Take out attaching screws Fig 4 1 x2 and remove Film guide 4 2 Take out attaching screw Fig 4 2 and remove Take up guide roller 1 3 Take out Take up guide shaft Fig 4 3 and remove Take up guide and Take up lock spring 4 Take out attaching screw Fig 4 4 and remove Release switch presser ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 All the rollers should rotate smoothly B PROJECTION LAMP amp LENS 1 HEAT PROOF GLASS Fig 5 Fig DISASSEMBLY 1 Push lamp cover stopper Fig 5 1 and take off Lamp cover 2 Straighten out the latches Fig 5 2 x4 of Heat proof glass holder and take out LC heat proof glass and Heat proof glass presser ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 When replace LC heat proof glass of which divided crack should not be captured by the latches of Heat proof glass holder 2 PROJECTION LAMP Fig 6 Fig 6 REPLACEMENT 1 Pullout Lamp socket assy Fig 6 1 from Lamp 2 Hold the Lamp presser Fig 6 2 of Lamp holder 2 assy and pullout Lamp 3 install a replacement Lamp place the square base of Lamp into the hollow and push the reflector into the metal rim of Lamp holder 2 assy 4 To obtain the sufficient screen brightness first loosen attaching screws Fig 6 3 x4 and move Lamp fixin
6. P7 34 If so replace Changing switch Check the brwakage of Changing switch by a P 16 P5 46 tester If so replace AMP assy Check the output voltages on Circuit plate in P 34 P7 j comparison with the voltage checking points on AMP circuit plate If the unusual voltage would be measured replace AMP assy to be continued 26 SOUND Cont d Case Step Point Remark Magnetic recording Recording knob Check the breakage of Recording knob assy by cannot be effected _ assy a tester P7 k AMP assy Check Sound head whether the adequate bias P7 j voltage has been effected If not replace AMP assy Bias voltage Single recording 30 50V Double recording 25 30V A C Check the breakage of Tr3 in AMP assy to find out the damage of high frequency circuit in AMP assy If so replace AMP assy Recording level is AMP assy Check the bias voltage of Sound head to find low P7 j out under bias current If so replace AMP assy Sound head If Sound head has been exhausted or broken P 18 P5 56 replace Sound head Head presser If the film cannot be held in parallel with Head 18 5 51 presser and Sound head adjust the position of Head presser holder assy Film If the sound track of film has been exhausted replace film Output sound is low Exciter lamp Adjust the position of Exciter lamp if it has P 17 during optical P5 68 been distorted
7. 3 adjust the position of Fan casing 1 2 3 P 7 57 59 60 Motor runs Line voltage Check the line voltage whether would drop due P 8 relatively slow P7 46 to fluctuation If so stop the projection or use a voltage regulator Motor torque If the motor torque would be not sufficient to 9 P7 61 achieve proper speed replace Motor assy Film feeding Turn Threading knob manually and if its 13 mechanism movement seems to be heavy lubricate all P3 f gears shafts and cam Clutch roller If Clutch roller could not be joined with P 10 P7 8 Shutter assy due to slip adjust the position of Clutch lever 2 assy to convey the rotation of Motor Drive belt If the deterioration of Drive belt would be P 11 P7 4 causing slip replace Drive belt Motor runs but very Motor stator Although taking out Drive belt and running P 9 slow P7 61 Motor itself the rotation is very slow due to burning up or poor layer insulation of Rotor If so replace Motor assy Motor bearing Although taking out Drive belt and running P 9 7 61 Motor itself the rotation is very slow due to seizure of Bearing Yet Motor switch Micro switch Check Micro switch SW7 whether could not P 12 knob positioned R 6 1 operate properly due to looseness of attaching Motor runs forward screw 22 D MACHINE FRAME Case Step Point Remark Film jumping Claw If the tip of Claw has been worn or inclined P4 40
8. Speaker is inferior replace P2 62 Tone color is inferior Sound head If sound head has been exhausted replace P 18 during magnetic P5 56 Im Head presser If Head presser cannot press the film to Sound P 18 P5 51 head evenly adjust the tension to obtain adequate spring pressure AMP assy If AMP assy is inferior replace P 15 P7 j Speaker If Speaker is inferior replace P2 62 to be continued 28 SOUND Cont d Case Wow and flutter Step Point Remark Sound drum If Sound drum has been deformed replace P 16 P5 19 Pad roller If Pad roller has been deformed replace and if P 16 P5 64 the film is not pressed evenly adjust the tension of Link lever spring Tension roller Adjust the position of Tension roller by P 16 P5 63 Balancing lever spring 1 Silicon photo If the film is interrupted by Silicon photo 17 holder holder adjust the position of Silicon photo P5 76 holder Fly wheel If the rotation of Ball bearing is not smooth P5 24 replace Ball bearing If the spring tension of Fly wheel spring is not sufficient bend Fly wheel spring to obtain the adequate spring tension Middle gear 1 2 If either Middle gear 1 or 2 has been broken P5 35 36 replace and if stained lubricate with grease first clean up by alcohol First sprocket If the rotation of First sprocket gear gear is not P3 27 smooth replace Motor assy If the
9. above steps Disassembly 2 1 NOTE Even if attaching screw Fig 14 4 would be loosened or tightened without performing pulled out Second sprocket shaft wow in sound reproduction might be developed 14 E SOUND 1 AMPLIFIER Fig 15 Fig 15 DISASSEMBLY 1 Pull out Volume control knob and Tone control knob 2 Take out attaching screws Fig 15 I x2 and remove AMP decoration plate 3 Take out attaching screw Fig 15 2 and pull out AMP assy 4 Disconnect the connector pin of the wires Fig 15 3 4 5 6 and remove AMP assy ASSEMBLY 1 Connect the connector pin of the wires Fig 15 3 4 5 6 to AMP assy 2 Position Motor switch knob F and attach AMP assy to Base frame so that Switch cam and Recording knob assy could cooperate Attach AMP decoration plate and tighten attaching screw Fig 15 1 x2 Fig 15 2 temporarily 4 Fit AMP assy so that a click of Micro switch could not be made while Motor switch positioned 5 but a click of Micro switch could be made while Motorswitch positioned F besides being Recording knob pushed 5 Attach Volume control knob and Tone control knob 15 2 HEAD BASE PLATE Fig 16 Fig 16 DISASSEMBLY 1 Take out attaching screws Fig 16 1 x2 and remove Loop setter holder 2 Take out attaching screws Fig 16 2 x2 and remove M O changing holder Optical guide and Optical guide spring come off this time 3 Take out attaching s
10. adjust the position of Claw against the film perforation Pressure plate assy II Pressure plate assy has been deformed P 7 P3 40 tilted unevenly replace or adjust the position If the spring pressure of Pressure plate is insufficient replace Pressure plate spring Cam shaft If the uneven end play of Cam shaft has been P 13 P4 27 developed due to wearing replace Cam assy Film guide 2 If the film is held excessively between Film 37 guide 1 and 2 adjust the position of Film guide 2 Picture flow Shutter assy To complete the synchronization between P4 28 Shutter assy and Claw adjust the position of Shutter Film flow Claw If the tip of Claw has been broken or the stroke P4 40 of Claw is insufficient with respect to the film perforation pitch replace Claw If the tip of Claw could not protrude far enough above Aperture plate assy or is not in perforation during feeding adjust the position of Claw Film Check the film perforations whether has been damaged Upper film loop is First sprocket shoe Replace Shoe mount spring 2 to obtain P 14 gradually assy sufficient pressure illuminated P3 30 Lower film loop is gradually illuminated Sprocket presser 5 30 Replace Lock lever spring to obtain sufficient pressure to be continued 23 MACHINE FRAME Cont d Case Step Point Remark Lower film loop Middle gear 1 2 Replace either the damaged
11. vibration of Motor is so big replace P 9 P7 61 Motor assy Spring adjusting If the film cannot be taken up smoothly due to P 3 collar excessive take up tension adjust the position of P2 44 spring adjusting collar Changing gear If Changing gear is distorted by Front arm 13 P4 1 shaft and Changing holder bend Changing holder somehow Film The perforations of film loaded has been damaged to be continued 29 SOUND Cont d Case Step Point Remark Noise is recognized assy If AMP assy is inferior replace 15 before Projection P7 Silicon photo diode II Silicon photo diode is inferior replace during 17 5 77 optical recorded film reproduction Noise is recognized Cancel coil Adjust the position of Cancel coil or if it is after motor is P7 34 inferior replace started Noise is recognized Power Replace IC3 STK 015 if it is inferior at the when sound drum is P7 19 same time replace C32 0 047 MFD and R23 rotated 5 ohms AMP assy Check whether earthed circuit in AMP assy is 15 P7 either inferior or mid wired If the input wire to AMP assy is excessively long and close by the speaker circuit of AMP assy cut the wire adequately to prevent oscillation of AMP assy Silicon photo diode Sound drum is touching Silicon photo diode P 17 P5 77 adjust the position of Silicon photo holder 30 960503 0001 16 10 sulyo
12. Drive belt should not be twisted 11 5 SWITCH MECHANISM Fig 12 Fig 12 DISASSEMBLY 1 ee 19 Pull out knobs Fig 12 1 x3 such as Motor switch Volume control and Tone control knobs To do this Motor switch knob should be positioned F Take out attaching screws Fig 12 2 x3 and remove Switch panel Unsolder the end of the wires x2 connected to Release switch Fig 12 3 Take out attaching screw Fig 12 4 and remove Pilot lamp holder Take out attaching screw Fig 12 5 and remove Switch cover Unsolder the end of the wire connected to Micro switch V 2A Fig 12 6 Take out attaching screws Fig 12 7 x3 and pull out Switch assy ASSEMBLY Pull out AMP assy Refer to page 15 Attach Switch assy to Base frame To do this first join Switch cam and both Reverse lever and Clutch lever 3 as indicated in Fig 12 and tighten attaching screws Fig 12 7 x3 Attach AMP assy To complete the rest follow the reverse way of the above steps Disassembly 6 5 4 3 2 1 12 D MACHINE FRAME 1 MACHINE FRAME Fig 13 Fig 13 DISASSEMBLY 1 Take out attaching screws Fig 13 1 x2 and remove Threading knob holder 2 Take out attaching E ring Fig 13 2 and remove Changing gear as well as Sprocket shaft pin then remove Changing holder from Sprocket shaft 1 3 Unsolder the end of the wires x2 connected to Solenoid assy Fi
13. IC DIAGRAM FOR 2 22222 2 22 32 SCHEMATIC DIAGRAM 33 VOLTAGE CHECKING POINTS ON THE CIRCUIT PLATE 34 I DISASSEMBLY amp ASSEMBLY A FRONT amp REAR ARM 1 FRONT ARM Fig 1 Fig 1 DISASSEMBLY 1 Take out attaching screws Fig 1 1 x2 and remove Front arm 2 Take out Reel shaft pins Fig 1 2 x2 and remove Reel shaft assy 3 Take out attaching E ring Fig 1 3 and remove Reel shaft gear 4 Take out attaching screws Fig 1 4 x2 and remove Arm gears x2 5 Take out Arm gear shafts Fig 1 5 x2 and remove Arm gears x2 ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 Lubricate all the gears with aluminum grease NOTE In comparison with the rear arm Front arm Front arm base plate and Front arm shaft gear are fundamentally different but otherwise same 2 FRONT ARM Fig 2 222 Prin scale Fig 2 DISASSEMBLY I Take out attaching E ring Fig 2 1 2 Take out attaching screws Fig 2 2 x2 and remove Spring adjusting collar Reverse slip spring Pulley washer Reverse middle gear 2 Friction plate 1 Reverse middle gear 1 and Reverse gear boss Take out attaching E ring Fig 2 3 and remove Rewind gear 4 Take out attaching E ring Fig 2 4 and remove Reverse middle gear 3 as well as Sprock
14. J lt gt SERVICE MANUAL ST 1200 ELMO CO LTD NAGOYA JAPAN TABLE OF CONTENTS 1 DISASSEMBLY A FRONT amp REAR ARM Page 1 Front Arm 1 2 Rear Arm 3 4 B PROJECTION LAMP amp LENS 5 2 Projection 3 Lens Hol dete 7 C TRANSFORMER amp MOTOR ESAE 9 3 Clutch 10 11 5 Switch 2 0 12 D MACHINE FRAME 1 13 2 Second 14 SOUND 15 2 Head 1 16 3 Sound 17 4 e 18 II TROUBLE SHOOTING A FRONT amp 19 PROJECTION LAMP amp 20 TRANSFORMER amp 21 D MACHINE 2 11 00000000 0100 000000000000 23 26 CONNECTING DIAGRAM FOR 81 SCHEMAT
15. Middle gear 1 or 2 increases during P5 35 36 forward projection Noise around Second sprocket If the sprocket teeth has been deformed P 14 Second sprocket 5 13 replace second sprocket ng Turn Second sprocket gradually to search the projection position where the noise is minimized Tension roller Move the position of Balance lever spring 1 by P 16 P5 63 attaching plate to search the position where the noise is minimized Film passing is Erasing head If the film is interrupted by Erasing head P 18 smooth during P5 58 adjust the position of Erasing head auto threading Sound drum If the film is interrupted by Sound drum P 18 P5 19 adjust the position of Head stand Head presser If the space between Head presser 1 assy and 18 P5 51 Head film guide either too wide or narrow and the film is interrupted around Head film guide bend Head presser holder assy to adjust the space Film cannot pass Film guide 3 Adjust the position of Film guide 3 to pass P 16 through second P5 74 film smoothly sprocket during auto threading Film does not wind Film guide 4 If the film hits the edge of Reel adjust the P 14 Reel during auto P5 11 position of Film guide 4 threading Take up guide If the angle of Take up guide with respect to 4 5 8 Reel is distorted bent Release switch presser to obtain the correct angle to be continued 24
16. Midget fuse 2A so replace P7 27 28 Power cord socket Check Power cord socket whether would be P7 25 damaged apparently If so replace Transformer Check the line voltage and the output voltage P 8 P7 IS on Transformer terminal If the output voltage could not be approved replace Transformer Motor does not Switch assy Check Micro switch SW8 whether could not P 12 P6 i operate due to loosenness of attaching screw Check the breakage of Micro switch SW7 SWS by a tester Phase change Check the breakage of Condenser 19 MFD condenser 125WV 7 45 If so replace Motor stator Check the breakage of the coil of Motor stator P 9 P7 61 If so replace Motor assy Motor circuit Check the breakage of the wires connected to 8 P7 46 Terminal 2 Drive belt During rewinding 1200 ft reel Drive belt P 10 11 P7 4 would be off Clutch gum roller 1 and also captured between Clutch gum roller 1 and Clutch lever 2 assy Consequently Motor could not run If so hang Drive belt properly and adjust the position of Idler to increase the tension to be continued 21 TRANSFORMER amp MOTOR Cont d Case Step Point Remark Motor vibration Motor bearing Take out Drive belt and check the jolting of 9 P7 61 Motor shaft to find out the defacement of Motor bearing If so replace Motor assy Fan casing 0 2 If Fan would be interrupted by Fan Casings P 9
17. aximized under Volume control knob positioned somewhat below max 10 Secure all the attaching screws by screw tight 17 4 SOUND HEAD Fig 18 Fig 18 REPLACEMENT 1 Remove Loop setter holder Refer to page 16 2 Take out attaching nuts Fig 18 1 x2 in turn and remove Pad roller lever To do this special tool No P025 had better to be used Take out attaching screws Fig 18 a x2 and replace Sound head 4 Attach Sound head temporarily so that the top of Sound head could position a little h 3 higher from the surface of Head film guide as illustrated Fig 18 3 also Sound head and Head presser roller could line up in a straight line as illustrated Fig 18 4 Attach Pad roller lever and tighten attaching nuts Fig 18 1 x2 in turn 6 Pass the magnetic pre recorded test film 5000 Hz Connect both the resistor 8 ohms 10W and the voltage meter AC 10V max parallel to the output terminals of the amplifier Extension speaker cord terminal 8 Run the projector move Sound head gradually to search the position where the output voltage is maximized under Volume control knob positioned somewhat below max 9 Secure attaching nuts Fig 18 1 x2 and attaching Fig 18 2 x2 by screw tight 10 Attach Loop setter holder NOTE P025 Pad roller lever spanner Offer price US 1 00 FOB JAPAN 18 TROUBLE SHOOTING A FRONT amp REAR ARM Case Step Point Remark Rewind k
18. crew Fig 16 3 and remove Sound drum 4 Take out attaching nuts Fig 16 4 x2 in turn and remove Pad roller lever 5 Unsolder the end of the wires Fig 16 5 x2 connected to Sound head and Erasing head 6 Disconnect the connecting pin of the wire Fig 16 6 on AMP assy side Refer to page 15 7 Take out attaching screws Fig 16 7 and remove Head base plate assy ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 Attach Head base plate assy so that Reverse lever 1 and Reverse lever could join to cooperate 16 3 SOUND LENS Fig 17 Fig 17 REPLACEMENT 1 Remove Exciter lamp 2 Remove Pad roller lever Refer to page 18 3 Loosen attaching screw Fig 17 1 and pull out Sound lens assy Insert replacement Sound lens assy of which window to be parallel to the optical axis as illustrated Fig 17 4 4 Install Exciter lamp Light Exciter lamp and first loosen attaching screws Fig 17 2 x2 slightly and either tighten or loosen attaching screw Fig 17 3 to adjust the slit image through Sound lens can be screened in the center of Silicon photo diode 6 Attach Pad roller lever Pass the optical focusing test film 4000 Hz 8 Connect both the resistor 8 ohms 10W and the voltage meter AC 10V max parallel to the output terminals of the amplifier Extension speaker cord terminal 9 Run the projector move Sound lens back and forth to search the position where the output voltage is m
19. et shaft pin inserted 5 Take out attaching E ring Fig 2 5 and remove Rewind gear holder 6 Take out attaching screw Fig 2 6 and Arm lock spring then pull out Front arm assy ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 Lubricate all the gears with Alvania grease 3 Adjust the rewinding tension of the front arm to be 75 gr by the position of Spring adjusting collar Rewinding tension Tolerance 65 90 gr 4 The rewinding time should be within 100 sec with 400 feet reel NOTE Pay attention for the attaching direction of gears 3 REAR ARM Fig 3 Fig 3 DISASSEMBLY 1 Take out attaching screw Fig 3 1 and remove Take up middle pulley 2 Take up pulley washer and Take up belt 2 Take out attaching screw Fig 3 2 and remove Spring adjusting collar Rear pulley shaft spring Pulley washer Rear take up gear and Friction plate 2 Pullout pin Fig 3 3 and remove Friction wheel pulley 4 Take out attaching screw Fig 3 4 and Arm lock spring then pullout Rear arm assy ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 Lubricate Take up pulley washer and the teeth of Take up middle pulley 2 with Alvania grease 3 Adjust the take up tension of the rear arm to be 65 gr by the position of Spring adjusting collar Take up tension Tolerance 55 80 gr NOTE When replace Take up belt take out just attaching screw Fig 3 1
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21. g 13 3 and loosen attaching screw Fig 13 4 then remove the wires x2 from cord supporter 4 Take out attaching screws Fig 13 5 x3 and pullout Machine frame assy ASSEMBLY 1 Attach Machine frame assy of which Loop former should be released and tighten attaching screws Fig 13 5 x3 strong enough 2 Solder the end of the wires x2 to Solenoid assy Fig 13 3 and hold the wires by Cord supporter then tighten attaching screw Fig 13 4 3 Insert Changing holder to Sprocket shaft 1 To do this join the U shaped hollow to Changing plate lock 1 as indicated in Fig 13 4 Attach Sprocket shaft pin and Changing gear and clasp attaching E ring Fig 13 2 Attach the Threading knob holder with attaching screws Fig 13 1 x2 so that pulled out Threading knob could complete the single frame feed 13 2 SECOND SPROCKET Fig 14 Fig 14 DISASSEMBLY 1 Take out attaching screws Fig 14 1 x2 and remove Film guide 4 2 Take out attaching screw Fig 14 2 and remove Sprocket presser and Sprocket presser washer 3 Pull out Second sprocket boss Fig 14 3 as directed by the arrow in Fig 14 and take out attaching screw Fig 14 4 then remove Second sprocket cap and Second sprocket ASSEMBLY 1 Attach Second sprocket and Second sprocket cap and pull out Second sprocket shaft as directed in Fig 14 then tighten attaching screw Fig 14 4 2 Tocarry out the rest follow the reverse way of the
22. g plate and Lamp holder 2 assy back and forth or up and down until most bright and leveled screen brightness can be accomplished 5 Screen brightness of the high position should be satisfied undermentioned specification Screen Center 800 Lx min Screen Corner 50 of the center brightness NOTE 1 Do not touch inside of the Lamp reflector as well as Lamp itself 2 Replacing Lamp first disconnect Power cord 3 Life of the Lamp installed is averaged 35 hours under normal projection 4 Applied voltage to the lamp should be 14 3 15V A C on high position and 12 3 13V A C on low position under the lamp lighting condition 3 LENS HOLDER Fig 7 Fig 7 DISASSEMBLY 1 Turn Focusing knob fully clockwise and pullout Projection lens 2 Take out attaching screws Fig 7 1 x2 and remove Pressure plate assy and Pressure plate spring 3 Take out attaching screws Fig 7 2 x4 and remove Pressure plate holder 4 Strip off Focusing plate Fig 7 3 5 Take out Lamp socket holder screw Fig 7 4 and remove Focusing knob 6 Take out attaching screws Fig 7 5 x2 and Focusing guide pin then remove Focusing cam mount Tube Focusing spring and Focusing cam 7 Take out attaching screws Fig 7 6 x2 and remove Lens holder assy ASSEMBLY 1 As to the assembling follow the reverse way of the above steps 2 Lubricate Focusing cam with permalub H3002 grease 3 Lens holder assy should not only smoothly
23. move back and forth but also be certainly locked by Click spring 4 To align the optical axis first pass the focusing test film and either tighten or loosen attaching screw Fig 7 7 to obtain evenness in focusing Then secure the screw with screw tight NOTE Attach Focusing cam mount as the stopper Protuberance of Focusing cam mount towards lower side C TRANSFORMER amp MOTOR 1 TRANSFORMER Fig 8 Blue White Green Yellow Blue Skyblue Fig 8 REPLACEMENT 1 Unsolder the end of the wires connected to Transformer terminal Fig 8 1 and Terminal 2 Fig 8 2 2 Take out attaching screws Fig 8 3 x4 and replace Transformer Blue White Green Yellow Blue ra ga Brown L I For 120V line MM Skyblue Brown J 2 MOTOR Fig 9 Fig 9 DISASSEMBLY 1 Remove Transformer Refer to page 8 Take out AMP assy Refer to page 15 Take out attaching screws Fig 9 1 x4 and Fig 9 2 and remove Motor unit assy or 219 Loosen attaching screws Fig 9 3 x2 and pullout Pulley unit Gust Pulley 50 Hz or with Pulley 60 Hz 5 Straighten out the latches Fig 9 4 x8 of Fan casing 3 and remove Fan casing 2 and Fan casing 3 6 Loosen attaching screws Fig 9 5 x2 and pullout Fan 7 Take out attaching screws Fig 9 6 x2 and remove Fan casing 1 ASSEMBLY 1 As to the assembling follow the reverse way of the above ste
24. mp Switch assy Check Micro switch SW9 SWIO whether would P 12 P6 i work properly also of which attaching screw would be loosened Check the position of Lamp switch lever 1 If not replace or adjust Transformer Check both terminals of H L on Transformer LI 8 P7 18 terminal whether the voltage would be applied Dark image Lamp Check whether Lamp would be off the rim of P 6 P3 3 Lamp holder 2 assy To obtain the sufficient brightness first loosen attaching screws and move Lamp fixing plate and Lamp holder 2 assy back and forth until most bright screen can be achieved Safety shutter If Safety shutter could not keep off from the P 10 7 1 optical axis of the screen during Motor switch knob positioned F or R adjust the position of Safety shutter Uneven screen Lamp To obtain leveled brightness first loosen P 6 brightness P3 3 attaching screws and move back and forth until most bright and leveled screen brightness can be achieved Uneven screen Projection lens To align the optical axis first pass the focusing P 7 focusing P3 8 test film and either tighten or loosen attaching screw to obtain evenness in focusing 20 C TRANSFORMER amp MOTOR Case Step Point Remark Pilot lamp does not Power cord Check whether Power cord would be damaged light PI 4 apparently and be broken by a tester Fuse 3 1 5A Pull out both Fuses and check the breakage If P 8
25. nob cannot Changing plate Adjust Changing plate lock 2 by attaching be locked during lock 2 screw to be locked enough with Rewind gear rewinding P2 28 holder Changing holder Check whether Changing holder could move 13 P4 6 smoothly without interrupting by Changing plate presser If so bend Changing plate presser to move smoothly Front reel cannot Rewind gear holder Check whether Front arm shaft gear would be I 2 rewind smoothly P2 9 depressed by Rewind gear holder If so replace Rewind gear holder Reel shaft assy Spring adjusting Adjust Spring adjusting collar first loosen P 3 cannot take up with collar attaching screw to raise the take up tension 1200 ft reel P2 44 Reel shaft assy Spring adjusting Adjust Spring adjusting collar first loosen 2 cannot rewind with collar attaching screw to raise the rewinding tension 1200 ft reel P2 2 NOTE To find out the parts in question in Parts List of ST Series refer to the page as well as illustration number in brackets 19 B PROJECTION LAMP amp LENS Case Step Point Remark Lamp does not light Lamp Take out Lamp and check the defective of P 6 P3 3 Lamp itself If so install new Lamp Lamp socket assy Take out Lamp check the output terminals of 6 P3 2 Lamp socket assy whether the voltage approx 22 23V would be applied If so raise the output terminals of Lamp socket assy to be in contact with La
26. nt Remark Neither optical nor AMP assy Check whether the input connecting pin to magnetic recorded _ P7 j AMP assy or 12P connector has been film cannot be disconnected reproduced Fuse Check the breakage of Midget fuse 2A for AMP P 8 P7 27 input Speaker If Speaker connector is not in contact with P2 62 contact late of AMP assy bend Speaker connector to make contact Check the breakage of Speaker itself If so replace Optical recorded Exciter lamp Check whether Exciter lamp would be off P 17 film cannot be P5 68 Exciter lamp socket assy as well as the reproduced breakage of Exciter lamp itself Changing switch Check the breakage of Changing switch by a P 16 P5 46 tester If so replace Sound lens assy If Sound lens assy has bee misplaced due to P 17 p5 81 loosening of attaching screws for Sound lens holder adjust the position of Sound lens assy Silicon photo diode Check the br akage of the wire of Silicon photo P5 77 diode by a tester If so replace AMP assy Check the output voltages on Circuit plate in P 34 P7 comparison with the voltage checking points on AMP circuit plate If the unusual voltage would be measured replace AMP assy Magnetic recorded Sound head Check whether Sound head either would be P 18 film cannot be P5 81 tilted or extremely distorted and not touching reproduced recorded track If so adjust the position of Sound head and or Head film guide Cancel coil Check the breakage of Cancel coil
27. ps 2 Fan should not be interrupted by Fan casing 1 2 3 3 CLUTCH Fig 10 Fig 10 DISASSEMBLY 1 Take out attaching screws Fig 10 1 x2 and remove Clutch unit assy and Drive belt ASSEMBLY 1 Hang Drive belt on Clutch unit assy and push against Base frame 2 Todo this first join Clutch lever 1 assy Fig 10 2 and Clutch link 1 either Safety shutter Fig 10 3 and Safety shutter presser as indicated in Fig 10 to achieve respectable movement and tighten attaching screws Fig 10 1 x2 3 If Safety shutter could not keep off from the optical axis of the screen during Motor switch knob positioned F or R loosen attaching screw Fig 10 4 and adjust the position of Safety shutter presser 4 If Clutch unit assy could not convey the rotation of Motor assy during 18 f s or 24 projection loosen attaching screws Fig 10 5 or attaching nut Fig 10 6 and adjust the position of Clutch link adjuster and Clutch lever 2 assy 10 4 DRIVE BELT Fig 11 Fig 11 REPLACEMENT 1 Loosen attaching screws Fig 11 7 x2 and move Pulley 50 Hz or with Pulley 60 Hz towards Fan 2 Take out attaching screw Fig 11 8 and remove Idler holder then replace Drive belt Move back Pulley 50 Hz so that Drive belt and Pulley 50 Hz could line up in a straight line and tighten attaching screws Fig 11 7 x2 4 Attach Idler holder to obtain adequate tension of Drive belt and tighten attaching screw Fig 11 8 5
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