SERVICE MANUAL GS-IZOO - Super8
Contents
1. Item Tolerance Measurement Page z Spring pressure of pressure plate 0 70g Hook a scale 110g COL3 on a film and hold it up 3 Spring pressure of side presser 30 35g Use a tension gauge 50g C063 19 i i 60 70 Hook a scale 0043 on claw and pul i Tension of claw braking spring 70g pet Ay perce pull it in the 25 Tension of claw spring Shaft direction 450 5007 Near claw pin Use a scale 1 kg 0006 33 Forward direction 850 950g Near claw pin Use a scale 1 kg C048 25 Claw tip protrudent length 1 0 1 Imm length from aperture plate rail Use a gauge C047 95 i i Three lines should appear d down Framing up and down 5 lines Me a tent yu UE SB ged dues 25 Forward 2 0mm Unstable picture PRU 2 m Picture size 50cm in width Speed 24 fps Reverse 2 0mm 18 2 speed 30 5 fps With a rating voltage After 5 minutes running 87 Speed fine adjustment 2442 fps Take up tension 40 5 g Use a 800ft reel and a scale C043 AL 18 fps 60 Rewinding tension 2004307 Use a 800ft reel and a scale C045 AL 8 fps Gh Rewinding speed 150420 sec Time for rewinding a 1200ft film Center over 1450 1x Picture size 50cm in width 76 I luminance Corner over 53 With respect to a center 76 lumen over 220 lm Screen lumen 76 Projection lamp voltage ue AY On transformer terminal With a rating voltage 7 Projection lamp life 25 hours s Switch knob on High sid2. FIG 31 B Rear Arm 1 TROUBLESHOOTING Refer to Fig 31 take up mechanism malfunctions Defect of the 5 20 21 18 Noise lack of grease at the 10 15 16 and their shafts DISASSEMBLY l When repairing the inside only of rear arm unscrew the 8 x2 and remove the 9 2 When detaching the whole rear arm take off the transformer Refer to Page 78 need not unsolder the vires on it 3 Unsolder the two wires blue and red 4 For further disassembly refer to Fig 31 REASSEMBLY NOTES 1 Follow the reverse vay of the disassembly steps 2 Apply the grease to all gears 3 When tightening the 12 x2 align the screw holes of 13 15 with each other After reassembly of the 1 make sure that it functions smoothly without unevenness 5 The 5 can rotate in one direction only because the roller clutch is used in it 65 Spring scale C043 Film 800 ft reel FIG 32 C Rewind Motor Assembl TROUBLESHOOTING Refer to Fig 32 The 1 s torque is insufficient Change the wire position Film is wound loosely into feed reel in REV pie Y a tore Ln ip ag ree ler sive torque of the 1 Tighten the lst sprocket Upper loop is lost during REV projection Noise from the lst sprocket in REV 13 2 firmly Attach the two diodes 181887 as shown n Fig 33 A in order to lower the supply voltage Improper
3. B Rear Cover 1 TROUBLESHOOTING Refer to Fig 2 No sound from a speaker Bad tone quality The a is broken or the 3 is connected loosely DISASSEMBLY 1 Unscrew the 2 x2 and take off the 1 after disconnecting the 3 2 Go on with disassembly works referring to Fig 2 REASSEMBLY NOTES Follow the reverse way of the disassembly steps lifier Cover 1 DISASSEMBLY Refer to Fig 3 1 Pull out the ten knobs 2 pos each of the 2 3 4 5 ana 1 pee each of the 6 7 They are inserted rather hard 2 Unscrew the 8 x3 and take off the 1 after disconnecting the 9 REASSEMBLY NOTES l Follow the reverse way of the disassembly steps 2 Difference in color among knobs is as follows The 5 is black with a white line The 6 is silver with a yellow line The 7 is silver with a red line
4. G Power and Switch Unit TROUBLESHOOTING Refer to Fig 41 oO No power though the switch ig ON The 3 is defective Projection lamp doesn t light The 6 8 9 are defective Relay doesn t work The 6 is defective Unable to shift High Low illuminance The 8 9 are defective Projection lamp isn t preheated The 9 is defective DISASSEMBLY l Unscrew the 2 x3 and remove the 1 with vires 2 For further disassembly refer to Fig 41 RFASSEMBLY NOTES 1 Follow the reverse way of the disassembly steps 2 Make sure each lever surely works 5 Make sure each switch surely works FIG 42 6 BSS CIRCUIT SECTION A ESS Circuit Board A bly 1 TROUBLESHOOTING Refer to Fig 42 e Unable to shift sp ed of 18 24 fps The 12 is soldered poorly or defective to adjust speed of 1 fps The 11 is soldered poorly or defective Unable to record play back ESS pulse Half contact of the 15 or defect of the 14 BSS mechanism doesn t work at all The 10 is soldered poorly or defective Refer to Page 83 Defect of 14 Unable to adjust speed of SLOW FAST Tne 9 is defective Not synchronize with tape recorder Short of 2 or 5 pin of 5 Refer to Page 84 The 3 is defective DISASSEMBLY l Unscrew the 2 x2 and disconnect the 3 4 5 Detach the 1 from the projector 2 Pull out the 6 x2 7 x2 and peel off the 8 3 For f
5. 43 FIG 20 FIG 21 E Head Holder 1 ATTACHING Refer to Fig 20 amp 21 l Put the 1 on the sound frame as shown in Fig 20 Then fix the 1 tentatively with 2 x3 in place where the 1 not only contacts with tat points but is away by 0 8m from b point Adjust the head position so that the film runs straightly from 3 toward A 3 Locate the 1 as shown in Fig 21 and tighten it Fig 21 shows the film should pass not along the extention line but avay from the line by 0 The film shouldn t touch the 5 except 5 s side surface and the 6 shouldn t touch the 5 IMPROVEMENT INFORMATION Improvement of Machine Frame Assembly will be performed as under Trouble Countermeasure If the film is incorrectly spliced with a tape The pressure plate fixer P No P413946 22 on Page 33 the spliced part may be doubled when it reaches receo applied and the film presser assembly P No the place where the loop is to be formed causing APBGSO028 is replaced by the new one B No 4PBGS0028B that the film stops on the way or that loop is The 25 on Page 35 is attached more closely to the getting shorter projection lens Unstable picture of new printed film By attaching the film side presser stopper 2 8o P41395 9 on Page 19 the movement of 5 is limited 45 F Spring Pressure Adjustment Adjust each spring pressure of film presser pad roller and middle tension in order to decreas
6. FIG 14 A Projection Lens Holder Assembly 9 TROUBLESHOOTING Refer to Fig 14 Film scratch Picture sometimes becomes out of focus Unstable picture z Upper loop is lost during optical film playback in reverse projection Flaws burrs or dust on the 13 The 4 pressure is excessive The 3 is distortional The 4 pressure is insufficient Its proper pressure is within 65 5g Uneven focus The 9 is out of position DISASSEMBLY 1 Remove the 1 x2 and detach the 9 from the machine frame Don t detach it except unavoidable case 2 For further disassembly refer to Fig l The 20 is adhered with double tack tape REASSEMBLY NOTES l Attach the 3 4 to the 5 with 6 x2 2 Attach the above assembly and the 7 to the 11 with 12 x4 tentatively Refer to Fig 14 A to attach the 7 5 Attach the 14 to the 11 with 21 x2 and 15 Don t misplace the 15 and 21 Attach the 16 17 18 to the 13 with 19 Attaching position of the 16 is where the notches a of 11 13 coincides with each other when you turn the 16 fully clockwise 5 Attach 9 to the machine frame with 1 x2 Adjust and tighten the position of the 3 4 5 7 being assembled tentatively so that PP mask can be in the ratio of 4 6 above and below against AP mask Refer to Fig 14 A Adjust it fine by changing the position of the 2 6 After attaching the machine frame assem
7. Oscillator distortion meter and resistor box 8 ohms LOW P045 a Record a 400Hz signal with 0 VU controlled by AUX volume knob at 18 fps and record a 2KHz signal without changing the AUX control knob position b Play back the 400Hz signal with OdB controlled by main volume knob observing thc indication of distortion meter Play beck the 2KHz signal without touching the knob and read the indication of the meter This indication should be between 42dB and 4dB Refer to the graph concerning other signals tolerance 53 FIG 25 I Optical Sound Adjustment TROUBLESHOOTING Refer to Figs 25 26 amp 27 Unable to play back optical sound Unable to play back high frequency range Played back the sound of poor quality The 2 s light does not come correctly to the a Defect of 1 Improper position of the 3 as shown in Fig 26 B Stain on 3 Insufficient volume during optical playback The 3 is out of position as shown in Fig 26 c D Noise during optical playback 1 Position Adjustment of Solar Battery Sound Lens and Exciter Lamp Test film Pre striped film recorded a 4KHz signal at 24 fps P053 Instrument Resistor box 8 ohms 40W P045 Turn on the exciter lamp and adjust the position of sound lens tentatively by turning screw
8. ON Fig 23 A on Page 48 After completing the assembly work make sure of no hum For this adjustment change the position of the cancel coil FIG 16 B Pad Roller Lever 1 TROUBLESHOOTING Refer to Fig 16 Flaw or uneven rotation of the 5 7 The 1 is Wow Flutter out of position or its spring pressure is improper Page 46 t The 6 8 s spring pressure are improper at Wow Flutter during only optical film playback The 9 is out of position Film removing from film path is not easy The 1 is out of position Film scratch The 6 s spring pressure is excessive Page 46 Slow sound picking up 3 Lower film loop is hardly formed during The 1 6 s spring pressure are insufficient Page 46 optical playback DISASSEMBLY Remove the 1 by unscrewing the 2 x2 For further disassembly refer to Fig 16 REASSEMBLY NOTES 1 Check the 5 s surface flaw or oil Attach the 5 to 1 The 5 should turn smoothly Stop a play in the 5 s shaft direction within 0 lmm by insertion of proper washer Fix the E ring with Serew Lock 2 Attach the 1 in place making the space 1 5 2 0mm as shown in Fig 16 A and coinciding a protrusion of the head guide with the 5 s groove g 16 B The 1 5 shouldn t contact the sound lena during STILL projection and the 5 shouldn t touch the solar battery during FWD projection 3 The 7 should rotates emoothly a
9. WID less than 0 4 Wow Flutter CCIR LINE less than 0 72 Record at 18 fps Move a sprocket at 12 teeth FL less than 0 4 Transfer at 0 VU a 400Hz signal recorded transferring recording over 6 dB Wa i Thetis 51 Track at 10 VU Bias oscillation frequeney GOKHzi5K Set both tracks to recording state Connect a100 Sk onsa ohms resistor across a ground wire on track 1 side 161 Bias current Measure voltage across it Track 2 In case of track 2 connect the resistor on track 2 Recording Track 1 Cut a bias power supply Measure the current in signal current Track 2 A00Hz ihe same manner as bias measurement Sg over 110m Set both tracks to recording state Connect a l ohm Tec resistor across a ground wire of track 1 E li 161 5 Erasing current Measure voltage across it In ease of track 2 T Track 2 over 110mA connect the resistor on track 2 side tiler lamp current 0 7540 01A Measure with an exciler lamp wire 161 V TROUBLE INDEX 7 Trouble Unstable picture It doesn t light Film flow EF Uneven ikai S Picture inclination n ch Gor r e N g Changeover of ILL is defective 80 Picture flicker e ms eee bested m j Sometimes out of focus Sm Peake eR pic ie Difficult to replace it 72 ANE Qu IUE Unstable lighting 76 ad Coutrel circuit board defecti 2 g Running noine Mo
10. engagement between 8 and 11 Improper position er defect of the 1 Defect of the 2 or circuit trouble Slip of the 8 or defect of the 10 11 Weak torque of the 1 Defect of the 2 or circuit trouble Noise during reverse projection Rewinding mechanism malfunctions entirely Slow rewinding speed Rewinding mechanism stops on the way DISASSEMBLY l Take off the transformer Fig 40 1 without unsoldering the wires 2 Make disassembly procedures in accordance with order of the reference numbers in Fig 32 REASSEMBLY NOTES l Follow the reverse way of the disassembly steps 9 The 1 should run by DC AV with consumption current of under 140mA without any load Use a DC stabilized power supply C004 for check 3 The 1 should be attached to the position where it runs by DC AV with under 300m current without any noise 4 When the wire position on transformer is changed check and adjustment for take up is required Refer to Page 60 5 Take up tension at 800ft reel core should be within 45 5kg Use a bar spring scale C043 6 Since no slip mechanism is applied you adjust the take up rewinding power with supply voltage from 5V to AV 4 D Front Arm 1 TROUBLESHOOTING Refer to Fig 35 Unable to rewind the film Defect of the 5 10 11 20 Noise Lack of grease at gears 10 15 18 and their shai fts DISASSEMBLY l When repairing the inside only of
11. front arm unscrew the 8 x2 and remove the 9 2 When detaching the whole front arm unsolder the two wires blue and red 3 For further disassembly refer to Pig 33 REASSEMBLY NOTES l Follow the reverse way of the disassembly steps 2 Apply the grease to all gears 3 When tightening the 12 x2 align the screw holes of 13 15 with each other After reassembly of the 1 make sure that it functions smoothly without unevenness 5 The 5 can rotate in one direction only because the roller clutch is used in it BASE FRAME SECTION A Counter Gear 1 and Rewind Switch TROUBLESHOOTING Refer to Fig 34 High speed rewinding mechanism ien t workable Defect of the 11 T proper position of the 10 Fig 55 Trouble in circuit Film counter Slip of the 7 or defect of the 7 8 9 malfunctions Turning of the 7 8 9 is interrupted by wires DISASSEMBLY 1 Unscrew the 2 x2 and take off the 1 2 Unscrew the 4 and take off the 5 3 Unscrew the 6 and take off the 3 4 For further disassembly refer to Fig 34 REASSEMBLY NOTES l Follow the reverse way of the disassembly steps 2 When disassembling the 1 reassemble it vith backlash between 7 and 8 3 Make sure that the 11 turns on exactly when the 5 is pulled for high speed rewinding gr y swan 2 EW PULL ON FIG 35 F
12. turn on at all the 2 is burnt and becomes defective 2 Bend the 8 if its movement isn t smooth in the 2 s core slit owing to deflection of it 3 When the movement distance of the 2 s core readjust the position of 2 6 1 as follows and f et and tat Attach the 6 pushing it in the direction of Attach the 2 pushing it in the direction of Attach the 1 pushing it in the arrow direction D FIG 38 Film Guide Assembly 1 and Take up Guide Assembly 6 TROUBLESHOOTING Refer to Fig 38 Unable to set back the The 11 is out of position or defective auto threading condition The 5 malfunctions Film scratch Flaws or poor turning of the 3 4 8 9 10 DISASSEMBLY l Unscrew the 2 x3 and remove the 1 2 To remove the 6 take off the amplifier cover Page 14 and unscrew the 7 x2 3 For further disassembly refer to Fig 38 REASSEMBLY NOTES 1l Follow the reverse way of the disassembly steps 2 Make sure that each roller rotates smoothly 5 Make sure that the 5 works perfectly after its reassembly II TEST FIIMS amp OIL GREASE A Test Films Pre striped film AKHz signal recorded at 24 fps Super 8 optical frequency response film 400Hz Super 8 optical frequency response film 4KHz POSA Resolving power film Type S B Oil Grease The mark in disassemb The letters A B C y drawing shows you th
13. 5 5 SERVICE MANUAL GS 1200 ELMO CO LTD Nagoya Japan INTRODUCTION Refer to the TROUBLE INDEX on Page 7 in order to find the page to be referred te in accordance with trouble Refer to the DISASSEMBLY STEPS on Page 4 to reach the defective parts For example when you remove the Amplifier you should take off the Front Cover Page 10 Rear Cover Page 12 Amplifier Cover Page 14 and Amplifier Page 116 in order Disassembly order in a section in VI DISASSEMBLY amp REASSEMBLY NOTES is as follows First HOW TO DETACH A UNIT ASSEMBLY FROM THE PROJECTOR Next HOW TO DISASSEMBLE THE UNIT ASSEMBLY AND SQ ON Refer to the Parts List for the GS 1200 which will serve you when disassembling the projector TROUBLESHOOTING is shown in the head part of each article in VI DISASSEMBLY amp REASSEMBLY NOTES Please be careful in DISASSEMBLING and REASSEMBLING the parts not to cause other troubles The CIRCUIT ANALYSIS is on Page 95 which explicates the logical circuit used in the GS 1200 1 How to read the troubleshooting flow chart ANSWER QUESTION YES follow the under box Checkup point NO follow the right box YES K E Faulkner 9 MACHINE FRAME SECTION A Machine Frame Assembly 1 TROUBLESHOOTING Refer to Fig 4 Cause Reference Unable to set back auto Defect of the 16 or its electric circuit threading condition The 16 is out of pos
14. CH IS ON Reset system isn t workable Stops by shorting across When turning off the pover 707 MENDES NIE eee and shorting across C302 RESET system works D302 and 302 open 302 opens Voltage between at 5 amp 7 pins 1 451 is 12V DZA51 and ICA51 2 broken Y Voltage between a 3 amp 4 pins 10451 is 1v Voltage at 8 pin j 10451 is 1 7V2 ub MAIN MOTOR DOESN T RUN 91 Voltage at 2 pin 10451 is about 5V ICh51 is broken Resistance between 1 amp I2 pins is 27Koha 18 fps Speed adjustment resistor line is poor connection Voltage across R129 R428 opens is about 1 7V a R429 shorts 0457 is connected correctly 10451 is broken Ch57 opens Poor connection between IC451 B pin amp R429 side Y Motor runs by short Motor runs by short ing Tr455 E c ing Trh52 B C Tr453 is broken h pins than 0 6V Voltage between 3 amp 1451 is less Tr452 is broken When you short Tri52 F503 burns Motor runs by short ing Tr 5l E C Tr451 is broken C451 DAO4 short Motor shorts Tr451 is poorly FT connected MOTOR ROTATION IS OUT OF CONTROL Voltage at 8 pin 10451 is about 1 2 R28 shorts R429 opens Eh i Voltage between E B Tr452 is OV Tr453 is defecti
15. Holder 54 D Front Arm 66 Page Page 5 BASE FRAME SECTION ee 68 8 OPERATION SWITCH UNIT temen Lh A Counter Gear amp Rewinding Switch 68 9 AMPLIFIER SECTION esses 116 B Main Motor amp Fan Motor ssssssseveseee 70 A Amplifier ssscssccsssssesseceseovseese 116 C Safety Shutter D Lamp Socket 72 B Amplifier Design s 76 119 C Switches Jacks Yariable BE Tranafor r cepeeesee erras a ese 78 Resistors amp Connectors 121 F Power amp Lamp Switch Unit 80 D Troubleshooting 6 ESS CIRCUIT SECTION c0 cccsceecseeee B2 E Circuit Analysis ssk tte emnens 155 A ESS Circuit Board lesse 82 F Recording Bias Current Adjustment 164 B Troubleshooting 83 VII BLOCK CONNECTION amp CIRCUIT DIAGRAMS 7 CONTROL CIRCUIT SECTION E A Block Diagram of Governor amp A Control Circuit Board 86 ESS Citetib cecseressesassssdevves 165 B Troubleshooting 87 B Control Circuit Block Diagram 166 Cirodt Analysis 95 C Amplifier Block Diagram Logical Circuit b Forward FWD Circuit Reverse REV Circuit d Still Circuit 95 D Amplifier Circuit Diagram 100 E Layout Drawing of Amplifier 105 Printed Board 1 amp 2 170 F Machine Circuit Diagram esses 172 e Governor Circuit amp layout Drawin
16. IG 36 B Main Motor 1 and Fan Motor 2 TROUBLESHOOTING Refer to Fig 36 Wo rotation of 1 and or 2 Defect of 1 2 Circuit trouble Lack of oil on their shafts Noise from 1 and or 2 Wipe off oil on contact surface of carbon brushes or replace the 1 2 Slow rotation of main motor Gia hatin ot T E Fig 36 A Turning of fan motor isn t changeable Circuit trouble though FWD button is depressed DISASSEMBLY Refer to Fig 36 REASSEMBLY NOTES 1 Attach the 1 in place where the tension of V belt becomes as shown in Fig 36 A 2 When attaching the 2 refer to the reassembly notes No 2 on Page 16 7 FIG 37 G ety Shutter Assembly 1 TROUBLESHOOTING Refer to Fig 37 Uneven illumination by safety shutter Safety shutter doesn t function normall rim is damaged by head in STILL projection Te 2 ie defective or out of position DISASSEMBLY l After removal of the main motor Refer to Page 70 unscrew the 3 x2 and remove the 1 If necessity of removing the 4 take off the fan motor Refer to Page 70 in advance 2 Unscrew the 5 x2 and remove the 6 assembly Unsolder the three wires on the 6 3 For further disassembly refer to Fig 37 REASSEMBLY NOTES 1 The correlation position of the 2 7 is where the 7 turns on when you push a point of the 2 fully If the 7 turns on quicker than normal timing the 1 will stop on the way If the 7 doesn t
17. REC button gt i Gi a No deflection of level meter 1 or 2 127 m SPOE Sedieding iuitk perforned 149 e z Kei thar level mer S 6 A amp Other recordings are OK Indication of level meter or 2 sS i 3 of differs with that in recording 3 inus Gen cnl Sin Nue 19 wa No signal from AUX QUT 1 or 2 198 Neither AUX OUT line works 128 Unable to put spot recording condition 149 No sound from either MONI 129 2 back No sound from stereo headphone 129 S Once operated solenoid won t put back 150 No sound from EXT SP 1 or 2 199 though OFF button is pushed No sound thru PA system M B 4s soon as power is applied solenoid 151 Stereo system isn t workable 132 3 wens Loud hun from each speaker 133 E 3 i aa T T Solenoid works with only shifting to 151 Oscillation in magnetic playback 155 136 I Mating circuit 1 or 2 isn t workable 159 a READY or M position without RBC button Neither muting circuit is workable 139 Amplifier fuse burns 152 zal VI DISASSEMBLY amp REASSEMBLY NOTES i APPEARANCE PARYS A Front Cover 1 TROUBLESHOOTING Refer to Fig 1 Trouble Cause Unable to push a STILL button fully The 4 is fixed incorrectly DISASSEMBLY l Unscrew the 2 Loosen the 3 and remove the 1 9 Go on with disassembly works referring to Fig 1 REASSEMBLY NOTES l Follow the reverse way of the disassembly steps 2 Make sure that the 8 functions smoothly
18. The output should be more than 11V Readjust the head position if less than 11V H Magnetic Sound Adjustment Cont d 5 Distortion Factor both tracks 1 amp 2 less than 4f ack 1 less than 50dB 2 i MEE dus Ee including weighting of 114B Test film Pre striped film Instruments Oscillator distortion meter and resistor box 8 ohms 40W P045 a Record a 00Hz signal with 0 VU controlled by the AUX volume knob b Play back the signal with 9V output controlled by the main volume knob and read the indication of the distortion meter set to distortion range This shows distortion factor c Stop the projector and remove the film with care to keep the volume position d Run the projector again without film and read the indication of the distortion meter set to level range This shows S N ratio Cancel Coil Fine Adjustment noise level less than 20mV both tracks 1 amp 2 including weighting Instruments Distortion meter and resistor box 8 ohms 40W P045 a Run the projector motor switch ON lamp switch ON maximum volume and adjust the cancel coil position observing the indication of the meter When the indication is less than 20mV the position is OK b This adjustment is applicable to both tracks 1 amp 2 t 51 H Magnetic Sound Adjustment Cont d J Erasing Effect both tracks 1 amp 2 less than A0dB including weighting of 114B Test Film Pre stripe
19. and Shutter 3 Cont d REASSEMBLY NOTES o n 2 5 5 Replace the claw or pin if they are worn out as shown in Pig 7 Attach the 15 with 12 to 14 in place where there is the clearance 1 5 9 0mm as shown in Fig 7 B Use a tool P055 Attach the claw to the 12 13 14 assembly with 11 10 9 after checking the claw is straight Measure the spring pressure of 10 at the a point and in the a direction using a scale C043 The proper pressure is at the range of 60 70g 1f improper adjust it with use of proper washer Attach the law assembly to the machine frame Adjust the claw tip protrudent length from the aperture plate surface as follows a The length is 1 0mm Fig 7 C The 1 0mm length is originally adjusted in assembling line with care but if not 1 0mm adjust the length by screwing or unscrewing the 15 in Fig 7 B using a gauge PO47 b When the length is 1 0mm the claw pin contacts close to the bottom of the cam If opens bend the b point in Fig 7 C c The two pieces of claw tip should protrude into the film perforations simultaneously Attach the 6 7 in Fig 6 and adjust their spring pressure as follows a Move the claw downward fully position where claw ends to send the film and measure the pressure at the a point in Fig 7 C b The 7 s pressure is within 900 50g when you measuring in the direction that the claw transports the film Use a scale P048 The 6 s p
20. ated by dotted and virtual lines if not disconnected yet 2 Unscrew the 7 8 x2 9 x6 and 10 x2 Unsolder the 13 s wires along with 1 s groove Pull out the 1 toward you somewhat poverfully because it is connected by connector REASSEMBLY NOTES 1 Follow the reverse way of the disassembly steps 2 Connect the 5 after pulling out it from under a lot of wires bound 3 Let the 14 s wires come nears transformer and connect it 4 Be careful not to cut or short circuit thin wires B Workable by remote controller Troubleshooting LED301 FWD indicator lights FWD PROJECTION ISN T WORKABLE TED PROJECTION ISN T WORKABLE SW301 or Voltage at Output from 16502 8 pin relating ll pin 16505 6 pinv IC302 is amp 10305 circuit is is less than E inversive when a l2 pin are defective 0 4V comparing with poorly that from 8 pin connected l is workable 1305 broken REV FLIP FLOP by REV ON or STOP ON W304 A or the circuit is broken 87 Voltage at 6 pin 10301 drops to OV with FWD button pushed Connection of SWHO4 1 C CN is OK If not replace it 1C301 6 pin amp SW304 1 NC are not connected exact eh ange Wi Voltage at 5 pin 10301 is less than 0 4V of 3 pin 10302 amp 5 pin 10301 10302 is broken poor connection Em iis Voltage at 10 pin 16301 drops t
21. bly to the base frame load the resolving power film type S P054 aud run Make sure the picture is in focus at the all points If not adjust it as follows In case upper or lower part is out of focus adjust it with 1 In case right or left puri is out of focus adjust it with b an CONTENTS Page Le TOES sesewnnome ns tiny 1 II TEST FILMS amp OIL GREASE 5 A Sound Frame e 036 III DISASSEMBLY STEPS 4 B Pad Roller Lever amp Film Presser 38 IV TOLERANCE eee 5 Head Presser 40 Voi TROUBLE ANDER E 7 D Combinntion Mead A2 VI DISASSEMBLY amp RFASSEMBLY NOTES 10 E Head Holder te Hes RA 1l APPEARANCE PARTS ccseseecssseeereces 10 F Spring Pressure Adjustment 46 A Front Cover seme e ees 10 G Hend Presser Solenoid amp Pad Roller Lever Solenoid Bj Raa S eis ee cis OX Siiven 8 Us Amplifier Cover vevesevessecivcecece IA Mo Magie Ule fond Aduntment 4 y 2 MACHINE FRAME SECTION 16 X Optical Sound Adjustment 5h A Machine Frame eraren 16 J apatan amp Second Sprocket 55 B Aperture Plate sce seceeeseeesesees 20 C Claw amp Shutter eter 22 He AREY A REND SECTION reri iri gg D Cam ES As Take up Hotot cesses 60 E Auto Thread csesesseeseee 30 By Rear Amm enn sne eyes 62 F First Sprocket ssessessseaees 32 C Rewind Motor 4 0 ccseseecseeeren Gh G Projection Lens
22. d film Instruments Oscillator distortion meter and resistor box 8 ohms 40W P045 a Record a 400H2 signal with 0 VU controlled by the AUX volume knob Rewind a part of recorded film and record no signal with minimum volume on the part i e this work is erasing the 00Hz signal b Play back a 400Hz signal with 9V output controlled by the main volume knob and when the part of no signal comes to the sound head read the indication of the distortion meter set to level range 6 Difference in output between tracks l amp 2 Test Film Pre striped film Instruments Oscillator distortion meter and resistor box r045 a Record a amp 00liz signal with 0 VU on each track D b Play back the signal with zero volume on each track Difference in output between them should be less than 4dB VU Qo If not readjust the head position H Magnetic Sound Adjustment Cont d 7 Sound Transfer from one track to another Test film Pre striped film Instrument Oscillator a Record a 400Hz signal with 6dB VU on track 1 Make sure of no oscillation when transferring the signal to track 2 with less than OdB VU Check up track 2 in the same manner as above b Tf oscillation occurs while your transferring the signal to another track within AdB VU the sound head output is insufficient and therefore readjust the head position 8 Frequency Response Test film Pre striped film Instruments
23. e Dissolving power 20 Left mark should clearly be distinguished i Corners Spring pressure of pad lever 250 300g On FWD condition Use a scale 500g C096 a5 Spring pressure of head presser 2 20 22g Use a tension gauge 50g C063 45 Spring pressure of back tension roller 70 80g Use a tension gauge 200g 45 fcin amp pressure of arm 9 9 1 1 kg Hook a scale 2 kgs P046 on arm tip e siza dh Hurtful scratch shouldn t appear after 10 times running of black film xdi Noise 60 phon m from aperture plate at Im in 94 fps projection Tilting angle over 7 Horizontal correcting angle over 19 Picture size 50cm in width Adjustable over 48mm Insulation resistance over 10 megohn Use a 500V megger Measurement Load an 8 obms resistor Amp output 18 fps Track 1 py fpa Frequency MAG e Record signals with 0 VU at 18 fps 52 56 Use Toyo film when checking at 24 fps 21 ln ratio over 45 dB Rating 10W 8 ohms output thru A W N circuit 49 55 OPT over 45 dB i 7 MAG both tracks less than 4 j ag low 8 chus output ig 55 rc cin Dorm less than 4 sa 204 0 Dats E Speed 18 fps Input 0 VU 51 Erasing effect both tracks less than A0dB SEV D Oel e LAS CURE A Mae desta MAG both tracks less than 20mV S t to FWD thru ALV N circuit 9 50 Moree Lent oT less than 20mV Maximum volume
24. e wow ond flutter and to stabilize the optical sound playback 1 Check the pressure of film presser spring Fig 22 2 while pushing it in the arrow direction with a scale C05 The measurement timing is moment the 2 goes just away from the 5 The range of 70 80g is optimum For this adjustment bend the 2 Make sure the 2 is not pushing the 5 2 Check the pressure of pad roller lever Pig 25 1 while pulling it im the arrow direction with a scale P026 The measurement timing is moment the 1 s roller goes just away from the capstan The range of 250 300g is optimum For this adjustment change the position of the 2 in Fig 25 3 Check the pressure of middle tension Fig 22 3 vhile pushing it in the arrow direction with a scale C045 The range of 30 40g is optimum For this adjustment change the position of 4 Notes l The adjustment of pressure of film presser is effective for forming loop during optical film playback The excessive pressure however may cause film scratch and wow B The adjustment of pressure of pad roller affects sound picking up during recording or playback 3 The adjustment of pressure of middle tension is not effective for decreasing large wow a7 FIG 23 A FIG 23 Head Pi r So id 1 and Pad Rol Lever Solenoid 2 TROUBLESHOOTING Refer to Fig 23 The 1 t ion Wov Flutter Te IB out of position 3 pressure is insufficient Solenoids 1 2 don t wor
25. e plate rail has no flaw and that the 5 moves smoothly without burrs or camber 2 Follow the reverse way of the disassembly steps 3 When attaching the 1 to the machine frame tighten the screws 3 and 6 x3 in this order 4 After fixing the 4 to 5 measure of the spring pressure 30 40g at a point in Fig 5 A Use a spring scale C043 5 Attach the 7 with 8 x2 in place where the image can appear fully in every direction without inclination 2i C Sending Claw Assembly 1 and Shutter 3 TROUBLESHOOTING Refer to Fig 6 Tus Ts The claw tip doesn t protrude fully from the aperture place surface 1 0mm is proper sa aaa fatis Tos a niece or ETC de hapa meas Unstable picture up downwara The spring pressure of 6 7 10 is improper Page 24 Unstable picture left rightward The 1 is out of position Page 2h Unstable picture sent backward the claw tip protrudes excenssively Page 2h stow running Oil adheres to the pulley of the 3 DISASSEMBLY 1 Take off the 3 after unscrewing the 2 x2 2 Take off the 5 after unscrewing the 4 x2 3 Unhook the 6 7 4 Take off the 9 after unscrewing the 8 and then remove the 1 The 10 11 will fall off 5 For further disassembly refer to Fig 6 22 25 Machine Frame Section FIG 7 1 5 2 0mm FIG 7 A FIG 7 B C Sending Claw Assembly 1
26. e point to be lubricated D amp E in the mark show you the kind of oil grease as listed below Use the regulated oil grease to keep the projector in the original condition ALVANIA GREASE 2 ALUMINUM GREASE 1 MOLYKOTE EP III DISASSEMBLY STEPS Front cover Page 10 Rear cover Page 12 Machine frame Page 16 Cancel coil printed anid frems Page 36 e circuit board Page 36 Main motor Page 70 Vor ER es Fan motor Page 70 Heat proof glass Page 72 Film guide Page 74 Rewinding motor Page 64 Front arm Page 66 Combination head Page 42 aspiisier cover Page 14 Amplifier Page 116 Light section Page 76 control circuit board Page 86 rss circuit board Page 82 Head presser solenoid amp Pad roller lever pressing solenoid Page 48 Cancel coil printed circuit board in case that you need not remove sound frame Page 36 Operation switch block Page 14 E Projection Lamp Socket Assembly O TROUBLESHOOTING Refer to Fig 39 Unstable lighting DUET the 12 13 14 75 ANSWER YES THE LAMP DOESN T LIGHT NO Difficult to replace the lamp Defect of the 1 6 mm illumination us E is out of position The deteriorates DISASSEMBLY Refer to Fig 39 REASSEMBLY NOTES Adjust and tighten the 1 s position with 2 x2 i
27. e width between the aperture mask upper line and picture bottom line appearing when the framing knob is turned fully clockwise Memorize this width Next measure the width between the mask bottom line and picture upper line appearing when the knob is turned fully counterclockwise The former width and the later should be in ratio of 6 4 If not adjust the 17 position in Fig 6 26 D Cam Assembly 1 TROUBLESHOOTING Refer to Fig 11 There is a play among the 1 and 14 18 owing to abrasion in the direction of its shaft The 1 s stroke is insufficient 37 Running noise Flaw on the 1 s cam surface Flaws on the 1 3 The 1 turns irregularly owing to eccentricity of the 14 18 Slow projection speed Oil which is lubricated among 1 and 14 18 becomes insufficient BSS sync is defective Tie 5 is defective or out of position DISASSEMBLY 1 Pull out the 1 after loosening the 2 x2 4 x2 The parts from 3 to 9 will fall off Take care not to mar the 3 with flaw and not to put oil on 2 Unscrew the 10 x5 and remove the 11 12 13 14 15 You however had better not take off the 11 because its center gets out of position except unavoidable case The 13 of 0 3mm 2 pes or 0 5mm 1 pee thick is used 5 Unserew the 16 and remove the 17 18 REASSEMBLY NOTES 1l Make sure that the cam surface and its shaft have no flaws 2 After checking the
28. g of Control Circuit Board 5 SOUND HEAD FRAME SECTION A Sound Frame 1 TROUBLESHOOTING Refer io Fig 15 Wow Flutter Attaching position of 1 nomas are incorrect Flaw deformation or uneven running of 7 10 12 Flaw or eccentricity of the 19 Film scratch Flaw on the 19 Malfunction of loo The 25 is out of position Attach the 25 while depressing it in the Front cover doesn t close arrow direction DISASSEMBLY 1 Remove the exciter lamp Refer to Page 54 for reattaching it Remove the drive flywheel spring Fig 23 3 from a point and Solenoid I Spring I Fig 23 7 from b point Then disassemble the parts by following the order of number in Fig 15 Remove the 17 11 Then pull out the 19 while depressing the 18 downward and holding the 13 Don t touch the cancel coil attached to the 21 in disassembling work Teke care for handling of 1 7 10 12 19 REASSEMBLY NOTES Follow the reverse way of the disassembly steps Make sure that 1 7 10 12 19 have neither flaw nor dust on their surfaces Attach the 1 with 26 x3 tentatively Then fix it after adjusting each backlash of 7 10 12 After attaching the 12 pull it in the arrow direction When detaching sound frame with the above procedures check spring pressure of the head presser Fig 17 10 on Page 40 position of the head presser Fig 23 1 on Page 48 and position of switch
29. i erae proa 8 j 5 Lor won t run with FWD ke opera 1 2 a per Loop io getting shorter in REV Motor won t run with REV key operation aes 3 in REV a Motor won t stop with STOP key operation 114 7 amp Lower loop isn t formed OPT Unable to set to STILL projection 10 105 106 114 Loop sensor function is defective ESS syne defective 29 85 04 86 m B Unable to set to the auto threading ESS malfunction kd do in B Unuble to release the auto threudin peed ius iss nuble to e ng Speed of FAST SLOW isn t adjustable 82 q Eim is interrupted in auto threading 30 12 Unable to record amp play buck ESS pulse 82 ia itfientt ko Lake off the film 58 Sol Is for hend presaer amp pud roller Image trails 22 lever don t work am Slow running 22 28 E Lamp relay isn t workable 80 rg Take up is defective B F Unable to shift 18 24 fps 82 Esc elles sect 0 S Unable to fine adjust speed of 18 24 fps go El suctus pev n cta Doe ctvoig gt Main motor revolution is out of regulated ie a Rewinding is defective 64 s meer E Boin next te tc ee Z No power though power switeh is ON 80 7 Rewinding power is too strong 6A 66 i Unable to shift MAG OPT system 116 High speed rewinding is defective 68 m Unable to shift STEREO MONO system 116 S hol ee QNM pues tals je P REC button malfunction 118 WP ERY quie tr mw t Spot recording button malfunction us O Noise from main motor 70 S aaao bart E peenar we Slow running of main mo
30. ill touch to a head surface Further depress the 1 and you should observe that the 9 x4 are pushed in by approx lmm Attach the 12 away about 0 1 0 2mm from a capstan axis ho FIG 18 B D Combination Head 1 TROUBLESHOOTING Refer to Fig 18 o The 1 is worn out or out of position Wow Flutter Low output level i The E is out of position Film scratch The 3 is defective The 9 is out of position Film stops in auto threading The 9 is out of position DISASSEMBLY l Unscrew the 2 x2 4 x2 and disassemble the 1 3 3 The 1 5 are assembled with Cemedine 575 t EH 2 When replacing the 1 unsolder the seven wires from the a Refer to Fig 19 RPH 3 For further disassembly refer to Fig 18 REASSEMBLY NOTES 1 Put the 1 in the 5 and fix them by applying Cemedine 575 to at point end Alone Alpha to b point while pushing the 1 in the arrow direction 2 Attach the 7 to the 1 with Cemedine 975 as shown in Fig 18 A 3 Insert a conventional washer 2 5mm between the 3 amp 9 and fix them tentatively After making sure that distance L equals to L with a vernier calipers tighten the 9 Refer to Fig 18 B 4 Assemble the parts from 1 through 5 to the 3 and put the film as shown in Fig 18 B Adjust the position of the 1 with serews 2 4 6 FIG 19 aligning the two head gaps with magnetic stripes Tighten the 2 4
31. ition Defect of the 25 or its electric circuit The gears 12 19 22 29 have burrs or dust Wow Flutter causing irregular turn Page 18 Wash off the dust or replace gears REASSEMBLY NOTES The 6 is incorrectly positioned No 2 Time when sound becomes m ridal fa o long The 6 is out of position DISASSEMBLY Take off the parts from the 2 to 12 The 13 will fall off Unsolder the two wires connected to the 16 from the relay board You however may remove the 16 after unscrewing the 14 x2 Take off the 17 20 19 22 respectively The 18 21 will fall off Unscrew the 23 and remove the 24 You need not unsolder the wire connected to the 29 Unsolder the two wires from the 25 Unscrew the 26 and remove the 27 Remove the 28 As holding the 29 and pushing the 34 down pull out the 33 The 50 531 52 will fall off E Unscrew the 35 and remove the 36 You need not unsolder ihe wire connected to the 36 Unscrew the 37 and remove the 58 Unscrew the 39 x4 take off the 30 and remove the 1 16 A Machine Frame Assembly 1 Cont d REASSEMBLY NOTES le 2 Follow the reverse way of the disassembly steps After adjusting the engagement of the 6 and 41 tighten them with the 5 temporarily he 6 is naturally in contact with the 4 and the 4 is able to turn by the 6 Adjust the attaching position of the 6 and fan motor N
32. k The qu burnt the 6 9 are out of position or defective Page 99 Trouble in the electric circuit DISASSEMBLY 1 To remove the 1 unhook the 3 from ta point and unscrew the 4 x2 2 To remove the e after removing the 6 in Fig 4 unhook the 7 from b point and unscrew the 8 x2 REASSEMBLY NOTES l When attaching the 1 make a clearance of 2mm as shown in Fig 23 A 2 Make sure that the 6 can come ON whenever the solenoid 1 works 3 Attach the 2 in place where the spring pressure of pad roller lever is within 250 300g Refer to Page 46 Adjust the 9 position so that the 9 can come ON whenever the solenoid 2 works The 1 2 will burn if the 6 9 are out of position 5 Take best care when handling the 3 7 49 H Magnetic Sound Adjustment l Head Position Adjustment Test film Pre striped film recorded a AKHz signal at 24 fps P027 Distortion meter and resistor box 8 ohms LOW 045 Instruments Adjust the position in place where the output obtained from each track is maximum by looseni or tightening the 22036 M ndi io 2 Rated Output both tracks 1 amp 2 10W 9V Maximum Qutput i 154 mV Test film Pre striped film R Instruments Oscillator distortion meter and resistor box 8 ohms 40W P045 a Record a 400Hz signal with 0 VU controlled by AUX volume knob at 18 fps i b Play back the signal with maximum volume
33. lm from the projector without changing the volume position Run the projector again without film and read the indication of the distortion meter set to lever range This shows S N ratio I Optical Sound Adjustment Cont d 4 Noise lei than 20mV including weighting Instrument Distortion meter Run the projector without film at 24 fps With maximum volume read the indication of the distortion meter set to level range Make sure that the output is less than 20mV 5 Frequency Response Test films Optical super B frequency response film A00Hz P051 and Akitz P053 Instrument Distortion meter a Splice both films Project the film at 24 fps b Play back the 400Hz signal with 3V controlled by main volume knob Play back the 4KHz signal without changing the volume knob position and see the output indicated by the distortion meter This output should be vithin 15dB aK FIG 28 J or FIG 29 Capstan 1 and Sprocket TROUBLESHOOTING Refer to Fig 29 Flaw eccentricity and rattling in the shaft direction of the 1 Defect of the 5 8 Vo Potter Excessive tightening of the 5 Flaw and eccentricity of the 11 12 13 Improper spring pressure of the 15 Improper balance of the 16 DISASSEMBLY l Remove the sound head holder 3 in Fig 17 2 Loosen the 2 and remove the 3 by turning it counterclockwise 3 For further disa
34. n place where the maximum illumination appears without unevenness Lamp is OK Contract of lamp socket Applied voltage is OK mene it SEES gt See Page 78 Switches SW310 2 amp 3 and wires are OK Relay RY303 is defective 7 F Transformer TROUBLESHOOTING Refer to Fig 40 o Pilot lamp doesn t light Defect of the 1 or breaking of the 5 Main motor doesn t turn Defect of the 1 or breaking of the A Take up motor doesn t turn Defect of the 1 or breaking of the 5 Fan motor doesn t turn Defect of the 1 or breaking of the 6 Main motor turns only slowly Defect of the 1 or breaking of the 6 lifier isn t workable dut etelber laap lighte Defect of the 1 or breaking of the 7 DISASSEMBLY 1 Unsolder the sixteen wires from the 1 Note that a brown wire is unsoldered from the 3 2 Unscrew the 2 x and remove the 1 REASSEMBLY NOTES 1 Follow the reverse way of the disassembly steps 2 Make sure that each wire is surely connected in place 3 Refer to the under list when trouble happens in the take up rewind motors The combination of the unloaded power supply voltage for the motors have been changed at two times Voltage at 3V terminal Voltage at AV terminal Applied 65 1200 about 5 8V about 4 6 initial production 3 4 4 27 3 8 4 2V recent production
35. nd have no flaw and no oil 4 The f is a stopper used for only optical film playback and has no respect to magnetic playback The 8 shouldn t work during optical playback For this adjustment change the 9 position Then check wow and flutter with optical test film FIG 17 C Head Presser Assembly 1 TROUBLESHOOTING Refer to Fig 17 Magnetie recording playback erasing are faulty The 9 s malfunction Film scratch The 9 ere defective Poor sound quality on optical playback The 12 is defective or out of position Wow Flutter Low output level The 10 s pressure are insufficient DISASSEMBLY Detach a pad roller lever Fig 16 1 Unscrew the 4 x2 and detach the 6 as an assembled parts The 5 will fall off In case of removing the 6 together with the 11 unscrew the 2 x3 and take off the 3 after removing the spring Fig 15 27 on back of the 11 For further disassembly refer to Fig 17 REASSEMBLY NOTES ds 2 Make sure that the 9 s have neither flaw nor burrs on film pressing surface After attaching the parts from the 7 through the 10 to 6 make sure that the 9 s work smoothly The 10 s pressure should be within 20 30g Use a scale CO43 Refer to Page 45 Make sure that the 1 moves smoothly and that each 9 s tip contacte with a head surface securely when removing the 5 Depress the 1 in the arrow direction and the 9 w
36. o less than 0 4V with FWD button pushed pm 3 IC301 is broken L above Voltage at 2 pin 10301 is ov Voltage at A pin 16302 drops as 10302 defective Poor connection of 10 pin 10301 amp 4 pin IC302 Replace it 54305 or the Voltage at Poor connection Voltage at 3 pin Poor connection Poor connection relating 9 pin 16305 between IC302 10301 is less between 10302 between IC301 circuit is is less than 11 pin amp than 0 4V ES ey amp IC501 12 pin amp defective 0 4v 10303 9 pin 3 pin or SW304 5 NC 10302 broken pris at i5 SW30h h or IB at l pin 8 pin 10303 relating 1 301 drops to is 0V circuit is less than 0 4V pe 10301 broken broken when REV button is pushed J 2 1C303 broken Voltage at l pin 16502 drops to less than 0 4V as above Poor connection between IC301 13 pin amp 1C302 1 pin 1 302 broken 89 PROJECTOR DOESN T STOP Voltage at 9 amp 12 pin Poor wire connection to Projector starts normally m 1302 drops to OV when pel 1302 9 amp 12 pin STOP button is pushed Controllable by remote z Connection of SK30A 6 controller c CON is ok 5302 6 or the relating circuit is defecti Poor vire connection among SW304 6 NC 9 pin and 12 pin 10302 PROJECTOR STARTS AS AS POWER SWIT
37. o 2 on Page 69 so that the 6 can get away from the 4 as soon as FWD button is depressed After this work tighten the 6 firmly Attach the 16 in place where it turns on when an auto threading button No 1 on Page 30 is depressed Attach the 24 in place where the reed switch on it can turn ON in the ratio of 1 time 1 frames Use a tester for the above checking After attaching the 29 28 make sure that a surface of the 29 ie in contact with the 28 closely If not pull the 29 in the arrow direction in Fig 4 A Make sure that gears have no crack and no dust prior to the attaching works Attach gear so that there is a backlash G3 DIDID Don t damage the 36 s wires If they short fuse will burn B FIG 5 A Aperture Plate 1 TROUBLESHOOTING Refer to Fig 5 Trouble ee Wo C ee NS Unstable picture right leftward The spring pressure of the 4 is improper Picture inclination Unstable picture The 7 is out of position or Picture out of position right or left worn out as shown in Fig 5 A b Unstable picture new printed film The 5 s position is improper DISASSEMBLY 1 Remove the film insertion entrance first sprocket shoe first sprocket and auto threading button referring to Page 32 2 Unscrew the 5 6 x3 and remove the 1 REASSEMBLY NOTES l Before attaching the 1 to the machine frame make sure that the apertur
38. ode No P057 Bar spring scale l kg Name Current check cord Weight 10g Dimensions 37 dia x 160mm Dimensions 25 5 x 6 x 120mm Page t 2h Page 164 y Code No P055 Code No P058 Name Claw adjust driver Name Trap coil adjust bar Weight 70g Weight 7g Dimensions 23 dia x 70am Dimensions 8 dia x 120mm Page 2k Page 164 Code No P056 Code No P059 Name Board connection cord Name i Cirewit check cord Weight 85g Weight 32g Dimensions 300mm long Dimensions 800mm long Page 123 152 for connecting and grounding Amp board Control board the circuit 55 T Optical Sound Adjustment Cont d 2 Rated Output low 9V Maximum Output 15W 11 Test film Instruments Optical super 8 frequency response film A00Hz P051 Distortion meter and resistor box 8 ohms 40W P045 Play back the signal with the maximum volume at 24 fps Make sure that the output is more than llY 1f not make readjustment on Page 54 3 Distortion Factor less than 4 S N Ratio i less than 45aB Test film Optical super 8 frequency response film 400Hz P051 Instruments Distortion meter and resistor box B ohms AOW P045 a Play back the signal with 9V controlled by the main volume knob observing the indication of the distortion meter at 24 fps At this time read the indication of the meter set to distortion range This shows distortion factor b Take off the fi
39. r connection of reed switch 5 pin is about 0 6V Trh09 is defective es Tr 09 B E and set the projector to reed switch OFF R406 opens position Check under STOP condition Inverted output appears at 5 amp 6 pin IC401 by earthing 1 amp 5 pin alternately x C405 is charged by 10h01 3 pin ON F R408 R410 RA11 open Y Ch05 discharges by RA12 RA52 open ICA01 3 pin OFF CU124205 is broken i es PMAO1 indicator setiecier 9 Tr404 ie broken In case connection of SW402 amp SW403 is OK R416 R417 open or C407 Ch08 short 4192 FIG 43 7 CONTROL CIRCUIT SECTION A Control Circuit Board Assembly 1 TROUBLESHOOTING Refer to Fig 43 The wires being connected to connectors touch the rotation parte Poor connection of connectors Circuit trouble Pages 87 92 Control circuit board is broken Main motor doesn t run at 6 fps Adjust it with semi fixed resistor c using a tool C005 Main motor doesn t run at 18 fps Adjust it with semi fixed resistor a using a tool C005 Main motor doesn t run at 24 fps Adjust it with semi fixed resistor b using a tool C005 ESS sync projection isn t well Adjustable with semi fixed resistor d DISASSEMBLY 1 Disconnect the 2 3 4 5 6 with care not to break the wires Disconnect the connectors indic
40. re is no play among the 1 and 14 18 attach the 14 18 to the machine frame Adjust the ap turn by changing the 18 position to see that the 1 can turn smoothly without unevenness 3 Attach the 1 9 8 7 6 3 5 to the machine frame simultaneously Adjust the 3 s position with the 2 x2 so that the 1 can turn smoothly without rattling and unevenness in the direction of the 1 s shaft 5 For further assembling works refer to Page 22 FIG 12 E Auto Threading Mechanism TROUBLESHOOTING Refer to Fig 12 The 6 s defective Rab Lette not toj anto ipani emiten i IN EE Mir luckrun Ge cabor position Unable to set back from auto threading m am ML toes echa B a are d fisiret Film is interrupted in auto threading The 16 is out of position Unstable picture right leftward The 16 malfunctions DISASSEMBLY off the 3 4 after unscrewing the 2 Note that the 12 may fly off 2 Take off the 6 after unscrewing she 5 x2 The 7 8 vill fall off 3 Take off the 11 after unscrewing the 9 The 10 will fall off Take off the 1 after unscrewing the 15 14 The 15 will fall off 5 For further disassembly refer to Fig 19 You had better not disassemble the 18 21 22 because a freme line gets entirely out of order except unavoidable case REASSEMBLY NOTES l Follow the reverse way of the disassembly steps 2 Make su
41. re that each lever operates firmly 3 When you push the 23 down for auto threading the 16 pushes the 23 down Under thia condition the space between the 23 and 24 should be within 8 8 1mm as shown in Fig 12 For this adjustment change the 16 s position P FIG 13 First Sprocket Shoe 2 First Sprocket First Sprocket Gear 11 Threading Button TROUBLESHOOTING Refer to Fig 13 Film seratch The el has flaw or burrs The 7 8 14 have flaw or turn irregularly Wow Flutter The 11 15 are defective The 12 has fallen off First sprocket doesn t turn The 11 s defective The 12 has fallen off Upper loop decreases in The 2 is not fixed firmly Stop the 2 s rattling reverse projection with use of proper washer DISASSEMBLY 1 Take off the 19 18 3 5 2 in this order Don t remove the 6 except unavoidable case 2 Pull out the 15 14 15 16 17 as an assembled parts toward you In an improved machine however the 13 is modified and you cannot pull it out Take off the 14 15 16 after unscrewing the 17 and then push the 13 backwards REASSEMBLY NOTES rye Fix the 14 15 16 with 17 to the 13 Fix the 8 with 9 to the 2 Make sure that the 8 turns smoothly and has no flaw and dust Fix the 7 with 4 to the 2 Make sure that the 7 turns smoothly and has no flaw and dust Fix the 2 18 with 5 19 respectively
42. ressure is within 450 50g when you measuring in the direction that the claw goes away from the aperture plate Use a scale P026 3 9 FIG 8 Machine Frame Section beginning of forwarding A sey beginning of forwarding B as halfway C end of forwarding end of forwarding AP MASK FIG 10 C Sending Claw Assembly 1 and Shutter 3 Cont d REASSEMBLY NOTES Cont d 7 9 10 Adjust the claw position as followe Set a white leader film on the aperture plate Whenever the claw tip just protrudes into the perforation it shouldn t touch the perforation edge regardless a framing knob Fig 6 16 position This is applied to both of forward and reverse projections For this adjustment shift the claw position with 15 x2 in Fig 7 C Refer to Fig 8 Check the claw stroke As sending the film of one or two frames by hand make sure that there is a slight clearance Pig 3 4 between the claw tip and perforation just before the tip transports the film and that the claw tip doesn t scratch the perforation edge when putting back Attach the shutter Make sure that oil doesn t adhere to the 5 s pulley in Fig 6 b Adjust the shutter position so that it shades the aperture mask while the claw transports the film of one frame Refer to Fig 10 Adjust the framing Attach the machine frame to the body Project the resolving power film P055 Measure th
43. s 5 6 in Fig 27 so as to have the focus of scanning beam on the 1 as shown in Fig 25 The lens shouldn t touch the capstan Adjust the position of the exciter lamp with 7 8 eo that the lamp filament is aligned with light axis of the lens as shown in Fig 27 Run the projector with film and play back the signal with maximum volume To obtain the maximum output adjust the sound lens position by turning or sliding the lens back or forth after loosening the 4 and by tightening or loosening the 5 6 Refer to Fig 26 A eh Code No 0004 Code No P026 Name oe Name Bar spring scale 500g Weight 3 8 kgs Weight 110g Dimensions 105 x 160 x 220mm Dimensions 37 dia x 180mm Page 60 64 7 Page E 2h A6 Code No C005 Name Frequency counter POS Resistor box Weight 40g Dimensions 10 dia x 280mm Page 20 24 40 46 60 64 8 ohms 40W Weight 1 7 kgs Weight 1 1 kgs Dimensions 130 x 135 x 180mm Dimensions 90 x 190 x 200mm Es Page 86 Page 49 50 51 52 54 55 56 4 Code No C043 Code No POAT Name Bar spring scale 110g Name 3 Claw tip length gauge 10mm Weight 5 7g Dimensions 60 x 8 x Imm Page D 24 Amp board 1 Amp board 2 Code No C
44. ssembly refer to Fig 29 REASSEMBLY NOTES 1 Follow the reverse way of the disassembly steps 2 Make sure that the 1 turns smoothly without unevenness and rattling FIG 30 TAKE UP AND REWINDING SECTION A Take up Motor Assembly 1 TROUBLESHOOTING Refer to Fig 30 z Insufficient torque of the 2 Change the position of Tepr per balap d ncti n wire from 3V to AV terminal on transformer Page 7 Take up mechanism malfunctions Defect of the 2 or circuit trouble entirely Slip of the 8 or defect of gears 10 11 y Improper engagement between 8 and 11 sie Bed ferien griieebie oct ange LU rdi improper position DISASSEMBLY Disassemble the parts in accordance with order of the reference number referring to Fig 30 REASSEMBLY NOTES 1 Follow the reverse vay of the disassembly steps 2 The 1 should run by DC 4V with consumption current of under 140mA without any load Use a DC stabilized power supply C004 for check 5 The 1 should be attached to the position where it runs by DC AV with under 300mA current without any noise A When the position of wire on transformer is changed check and adjustment for rewinding is required Refer to pages 64 and 66 5 Take up tension at BOOft reel core should be within 45 5kg Use a bar spring scale C043 6 Since no slip mechanism is applied you adjust the take up rewinding power with supply voltage from 3V to AV
45. tor 70 78 Pis A 1n ESIL projection Tf 72 Tle wee Arad D des Film counter isn t workable 68 Noise from fan motor 70 Pilot lamp doesn t light 78 Speed of fan motor isn t changed 70 Noise in forwarding 60 Take up amp rewinding motors don t run 60 64 78 Noise in reversing 6h 66 Page Unable to playback 54 126 Unable to record on track 1 or 2 Val 142 Poor sound quality 54 Unable to record on both tracks 145 Small sound 5h Unable to erase sound on track 1 or 2 0 14h Hom 5h 134 Unable to NORMAL record on track 1 or 2 145 Unable to playback high frequency range 54 X DOUBLE recording is 0K Oscillation 137 138 ALC of track 1 or 2 isn t workable 145 Wow Flutter 58 E Neither ALC is workable 145 Quick sound start system won t work 16 38 No ire of level t 1 or 2 146 Wow Fluttex 16 28 52 56 Recording itself is OK 58 40 42 46 Unable to DOUBLE record on track 1 or 2 146 48 58 86 NORMAL recording is OK Poor sound quality 12 40 High frequency range isn t played back 40 42 Solenoid 1 or 2 doesn t work 147 Unable to playback 12 78 118 Neither solenoid works 148 a 125 124 125 m This 1 or 2 won t work though FWD 149 No sound thru speaker track 1 125 E button is pushed together REC button No sound thru speaker track 2 124 Both of them won t work through FWD 149 A No sound thru speaker both tracks 125 a button is pushed together
46. urther disassembly refer to Fig 42 REASSEMBLY NOTES 1 Follow the reverse way of the disassembly steps 2 Make sure the 9 10 11 22 14 are surely soldered on the board as they will take off easily 85 B Troubleshooting PROJECTOR DOESN CART BY SYNC One shot wave is present Voltage at 13 pin Input pulse comes into C401 opens at ll pin 1401 1Ch01 drops to 0 8V pl 14017 R401 shorts 4 amp 5 pin by sync pulse DIN 6P lines open Iz i Voltage at ICK01 R402 shorts IC40l is defective 13 pin is about 3V gt R403 opens without input pulse Input pulse voltage is low Over resistance on 4 pin DIN 6P line lack of C40l capacity Motor runs by Tr408 Voltage at Tr40B C Poor wi t E C shorted fi 5v ls do Zapia east Y Motor runs by Tr407 E C shorted RAO1 R421 R422 open R424 R425 open Voltage at VRA03 409 R423 short Tr408 is defective Center is approx gt R426 VR403 open Tr407 is defective 1 5v 8 pin 10451 connection B Troubleshooting Cont d PROJECTOR DOESN T SYNCHRONIZE WITH TAPE RECORDER MOTOR RUNS SLOWLY WITHOUT INPUT PULSE Motor stops by Tr408 B E shorted Tr407 is broken C410 shorts RA06 shorts Tr408 is broken put voltage to ICAOl E C shorta pin is about Q 8V e OV R05 opens 3V ChO opens 5V RA05 shorts Input voltage to ICAOl Poo
47. ve Input of more than 7 0 2V is applied to l pin 10451 Generation circuit opens D405 D406 C461 short Tr452 is defective Tr452 B C circuit shorts Motor stops by opening Tr451 is broken Resistance between Trh51 B ep M DA03 shorts 11 amp 12 pins is Speed adjustment resistor line shorts 27Kohm 18 fps 92 95 C Circuit Analysis a Logical Circuit When a voltage at eas i ihe logical circuit gate is high Vee Supplied voltage it is called ov 1 or High end when low it is called 0 or Low The symbol of the gate means the inversion of the signal Inverter Inverter means that the inversion of 0 is l and vice versa GATE ABX A amp BeX inc 000 14121 Only in the case both A and B are 0 OP iate x 911 X0 B 101 When A is 1 X 0 regardless of B 111 A A Be X is inversion of X of OR gate When X is 1 at OR gate X is O at this NOR gate and vice versa When X is 0 at OR gate X is 1 at Eas NOR gate fi AxB X x Only in the case A and B are 1 Mel When A is O X 0 regardless of B NOR gate A HOO gt Koro w mooo KR oooH x 200 gt moro w AxBeX NAND gate ABX 001 x 011 X is inversion of X of AND gate 101 110 ex AND gate jd qos gt o 3 EQUIVALENT GATE i u Y i 94 IV TOLERANCE
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