Eiki RST Service Manual
Contents
1. Clearance between top of lens holder and bottom of No 1 sprocket should be no less than three film tickness This provides the clearance necessary to depress sprocket shoe for film re moval or insertion This also helps prevent film damage should the film jam up in gate area during self thre ading If lens holder fits tight aga inst No 1 sprocket shoe and no clear ance is provided sprocket teeth may puncture film between perforations Adjustment Loosen two pivot locking screws and turn two pivot screws 312 31081 as required Pivot screws must be snug against lens holder Tighten two lock ing screws against pivot screws Check Optical axix of lens must be perpendi cular to film plane Set projector at exact right angles to screen Without film project light beam A 1m 3 wide area is a good size Both side edges of illuminated area must be foc used equally sharp Adjustment Loosen lock nut and adjust screw loca ted under front of lens holder to ach ieve optimum equal focus Tighten lock nut 9 7 Note The Super f 1 3 high speed lens has a shallower depth of focus and requires 4 more accurate adjustment than other slower lenses NO 2 FILM GUIDE 312 17801 Function Moving this film guide to the left unt it locks as you face the projector pr pares the film path for Self Threading in the following manner a No 1 Film guide is pushed into plac above the film gate No 2 a2. REVERSE position PROBABLE CAUSE 4 Film defective 13 Loop restorer rotates continuously or errati cally 1 Damaged film 2 Insufficient spring tension 3 Loop restorer gear defec tive 4 Sensing roller ST 18021 in wrong position 5 No 2 sprocket plate loose 6 No 2 sprocket shoe open RM Models 7 Film touching sensing roller because lower loop too small 8 Insufficient claw protru sion 9 Green film 10 Worm gear on cam shaft mounted incorrectly cau sing variation in claw REMEDY 4 Use new film l Repair or replace 2 Stretch or replace spring ST 18061 See 8 10 3 Repair or replace as per 5 10 4 Readjust as per S 10 5 Remove lamp house frame casting 312 32111 and tig hten screw in end of shaft See S 8 1 6 See 5 9 3 for timing inst ructions and tighten screw 7 See S 10 for adjustment 8 Adjust as per S 1 5 9 Treat with film conditio ner or lubricant 10 See 5 1 3 w protrusion 11 Claw broken 11 Replace 14 Excessive noise in film 1 Upper loop too smail 1 Increase to proper size gate in FORWARD posi 2 Film touching sensing 2 Adjust as per S 10 tion with good clean roller ST 18021 undamaged film 3 Emulsion build up on film 3 Clean and buff shoe or film gate 4 Claw loose 4 Tighten 5 Inner guide rail binding 5 Clean and adjust See 5 9 4 6 Film shoe binding 6 Adjust See 8 9 5 7 Side pressure
3. EIKI RST RT RM SERIES IS Smm Sound Projectors SERVICE MANUAL Eha EIKI INDUSTRIAL CO LTD C P O BOX 1229 OSAKA JAPAN MARCH 74 TROUBLE SHOOTING CHART FOR EIKI RST RT RM SERIES PROJECTORS 1 The following information will help the service technician to analyze the problem and determine the actual SOURCE It is important that the effect be eliminated by curing the actual CAUSE of the problem I MISCELLANEOUS TROUBLES SYMPTOM PROBABLE CAUSE REMEDY 1 Pilot lamp does not light 1 No power at wall outlet l Check fuse or circuit bre aker of power circuit 2 Power cord defective 2 Repair or replace 3 Transformer defective 3 Check 9 pin nylon plug Repai or replace 4 Pilot lamp defective 4 Replace 2 No power for motor in 1 Rotary switch defective 1 Repair or replace FORWARD position 2 Transformer defective 2 Check 9 pin nylon plug Pilot lamp lights except 240V 220V 118V Repair or replace 3 Motor plug defective 3 Check 6 pin nylon plug Repair or replace nN aaaaamamamamamamamaaaaaaaaaasassssssssssssuuussstst 3 Lamp does not light in 1 Lamp burned out 1 Replace FORWARD LAMP position 2 Rotary switch defective 2 Replace Ed 3 Lamp socket defective 3 Replace 4 Open circuit between lamp 4 Repair socket and transformer 5 Transformer defective 5 Repair or replace 4 Film sprockets not turn 1 Still picture lever
4. Additional rotation could also be caused by belt engaging a tooth on nylon gear that has not been trimmed properly Use a sharp knife to remove the offend ing part if necessary To relocate sensing roller loosen screw in end of shaft beside sensing roller Hold nylon gear with other hand while loosening or tightening this screw Tighten screw SECURELY when adjustment is completed Check Thread film completely and with project Check or in Operate condition turn inching Without reel on take up arm when set knob Film should not touch sensing ting Automatic Threading Control Lever roller Double check with projector the top of guide should be pointed to running the center of take up arm spindle Adjustment Loosen set screw on end of guide reposition and tighten screw MARCH 74 16 Check Excessive friction at point where pin 312 17391 touches arm ST 18121 may not allow release of Self Threading guide system Adjustment Return spring ST 17111 is attached to front end of interlocking bracket 170943 This spring should be shortened or 4 g G replaced with a stronger one Check Be sure shoulder screw 312 11071 is securely tightened Too much clearance Adjustment may allow safety arm ST 18121 to swing RST RT MODELS Open lamp house door out and slip past 312 32101 Loosen screw in end of No 2 sprocket shaft and rotate sprocket 12 REWIND CONTROL ASSEMBLY plate counterclockwis
5. Curved hole in casting must provide the nece ssary clearance The mounting pin ST 17011 must be str aight and mounted so that it is perpe ndicular to film gate spring ST 17021 should move guide eas ily ST 17031 11061 MARCH 74 10 Adjustment Adjustment Film guide position and movement is Push No 2 film guide to SELF THREAD controlled by No 2 film guide 312 17801 a Install film and inch forward so Cam bracket 312 17901 is mounted on that film is in gate control lever shaft The cam action b Turn inching knob so that claw is moves controlbar ST 11061 which in engaging film ready to pull down turn moves No 1 film guide c Loosen screw in end of No 1 sproc Position of No 1 film guide may be ket shaft adjusted by one of two methods d Turn sprocket plate so that film a Bend control bar below mounting contacts firmly complete inside of screw with a pair of long nosed pli No 1 film guide ers so that cam contacts control bar e Tighten screw There should be no sooner or later as required slack between No 1 sprocket and b Loosen screw in end of No l film film shoe guide and make a clearance as req uired and tighten lock nut Note Check timing if Note a Camtank has been removed The position of the camtank assembly b No 1 sprocket or gears have been is slightly variable due to mounting removed hole clearance No l film guide position is affected by camtank assembly position 9 4 FILM GAT
6. If it blows again check speaker load must be 8 ohms or more on exte rnal speakers Check out put transistors 5 Speaker not plugged in 5 Plug it in 6 Cable connections in amp 6 Plug in or tighten lifier loose 7 Speaker defective 7 Replace 8 Solar cell defective 8 Replace 9 Foreign object in optical 9 Remove scanning beam 10 Magnetic head defective 10 Replace MARCH 74 SYMPTOM PROBABLE CAUSE REMEDY eS m ee 39 Low volume 40 Loud hum 1 Defective exciter lamp 2 Dirty optical sound lens or foreign objects in light beam 3 Low voltage to exciter lamp 4 Optical sound lens mis aligned 5 Amplifier defective 6 Magnetic head dirty RST RT RM 2 3 type 7 Magnetic head defective 1 Exciter lamp cover off or not installed correct ly Light from projection lamp reached solar cell 2 Input cable shields loose 3 Amplifier defective 4 No motor shield plate on magnetic model 1 Replace 2 Clean 3 Repair amplifier 4 Adjust as per 5 1 3 5 Repair or replace 6 Clean 7 Replace l Install the cover on pins pe mn 41 Distorted sound 1 Defective exciter lamp 2 Speaker defective 3 Rubber roller seized or binding 4 Sound drum bearing defec tive 5 Reverse rubber roller touching set collar 312 41301 6 Flywheel off 7 Flywheel too loose 8 Magnetic sound overrecor ded 9 Defective ampli
7. Lamp House Frame 5 9 10 13 Claw Protrusion S 1 5 4 Casting Camtank Removal and 8 1 6 4 No 5 Film Guide 8 9 11 14 Installation Camtank Disassembly 1 7 Auto Take Up Guide 5 9 13 15 and Repair Reel Arms 8 2 1 5 Loop Restorer s 10 16 Take Up Spindle 5 2 2 5 Safety Arm s 1 16 Arm Locks 8 2 3 6 Rewind Control 12 16 Supply Arm 8 3 8 4 6 Interlocking Bracket S 9 7 12 Take Up Drive 8 5 7 Sound Pick Up Alignment S 13 17 Clutch Cams 8 5 S 6 1 7 Sound Drum and Flywheel S 14 18 Reverse Belt 8 3 8 6 1 6 Reverse Rubber Roller 8 15 18 Tension Gear S 7 8 Motor and Pulleys 16 5 17 19 Main Drive Belt 8 5 S 8 1 8 Silaz Sprocket Shoes 8 9 1 amp 8 Picture Uniformity 5 9 6 S 18 12 20 5 9 12 No 1 Film Guide 5 9 2 9 Amplifier Removal s 19 20 Timing of Sprocket 5 9 3 5 10 10 Magnetic Play Back 5 20 20 Claw 5 8 1 Models Film Gate 5 9 4 10 Transformer 5 21 20 Film Shoe 5 9 5 11 Rotary Switch Disasse 5 22 21 mbly MARCH 74 2 GENERAL NOTES ON SERVICING EIKI RST RT RM PROJECTORS A ISO screws standard throughout the world are used in all ISO stands for International Standard Organization B Most repairs and adjustments can be made on EIKI Projectors using two sizes of Phillips screwdrivers and a blade screwdriver and standard 16mm film as a thickness gauge Most 16mm film is about 0 1mm 0 005 thick To avoid damage to screw heads it is important to rememb
8. SUPPLY ARM REVERSE PULLEY 312 13291 Function This pulley drives supply spindle when projector is in REVERSE model This pulley is seated between two corks and tension of pulley and cork is adju sted by knurled nut 312 13501 Reverse belt is used between this pulley and clutch cover pulley 312 15501 located on No 1 sprocket shaft Check Mount nut ST 13401 between spring was her ST 13501 and drive gear 312 13401 No clearance is required between drive gear 312 13401 and ball bearing OB 626 SUPPLY ARM SPINDLE AND PULLEY ASSEMBLY ST 13201 Lubricate shaft and arm hub with sili cone grease Belt must be clean and dry Pulley grooves must be clean and dry Slippage here will result in poor re wind SUPPLY ARM ASSY ae sram enna ee t MARCH 74 5 TAKE UP DRIVE GEAR AND CLUTCH Function Drive gear 312 14501 has a protruding pin which holds clutch cam ST 14071 When projector is operated in FORWARD mode clutch cam engages one of five 5 pins located in outer clutch collar ST 14401 This collar is secured to drive pulley shaft with a set screw Check When projector is operated in REVERSE without film outer clutch collar and pulley shaft should not turn Main dr ive belt should not touch outer clutch collar Adjustment Drive gear 312 14501 should have a sm all amount of end play 0 1mm 0 005 or one 1 film thickness Locate and secure outer clutch collar accor
9. a small amount of play between worm gear and fiber gear Rotate fiber gear to check Adjustment Reposition as necessary and tighten screws securely S 1 4 CLAW POSITION Check Claw must enter film perforation re fer to section 5 9 4 dealing with gate adjustments Claw must not touch sides of perfora tions at any time during its entry pull down or exit Claw should leave film so that frame is centered over aperture with framing lever in midway position Adjustment Slightly loosen two screws that hold fulerum collar 312 11041 Holes in collar are oversize Move fulcrum collar horizontally and or vertically to correct position Check Check for correct framing with film in projector and operating 1 5 CLAW PROTRUSION Check Claw protrusion should be 0 1 0 012mm 0 040 0 005 Use gauge to determine Adjustment Loosen a lock screw on fulcrum control of camtank Loosen screw XT 3510 and claw comes out Tighten screws and claw comes in Tighten lock screw in right position Note Claw protrusion may be affected by camtank position when reinstalling Check and reposition camtank if nece ssary 3 1 6 8 1 CAMTANK ASSEMBLY REMOVAL a Remove transformer b Remove reverse belt c Remove main drive belt from No 1 sprocket drive gear d Remove motor belt e Remove lamp mounting assembly f Turn inching knob to fully retract claw g Depress still picture l
10. panel c Remove front control panel d Remove flywheel e Remove amplifier f Loosen two screws on front of Rotary switch mounting bracket and pull out the switch assembly from the rear side of the projector To replace reverse above procedures Before replacing be sure to a Check the clicking rotation of the cam bracket 312 60541 b Check end play at both sides right and left They must be even c Check the position of control knob 312 60611 At OFF position white arrow line must be on the top d Lubricate mounting bracket 312 60521 and control knob with silicone oil e Lubricate clicking ball ST 13231 and cam bracket 312 60541 312 60051 5pcs 21 D FORWARD 6 or Pa REVERSE LE FORWARD REVERSE amp _ REVERSE FORWARD O ALL OFF 5 DON amp Da MON E DEDEDON d DOGON DDODEWDON 312 60531 5pcs 312 60611 u a Mus ST 13231 XT 30068 2pes _ WC 30 2pcs ig ar 312 60521 a WC 30 2pes a o XP 3038S 2pcs Tib 312 60541 XP 30288 lt I 2 pes WC 30 2pcs 312 60561
11. silicone grease Lubricate fiber gear with silicone or other fine oil completely wetting all teeth Wipe off excess MARCH 74 S 7 TENSION GEAR ASSEMBLY 312 15601 ST 15281 St 15291 N ee Gere AST 15261 N 4 t 312 XP 3508 A 312 15241 ST 15251 A ae Uo NA 405 A XP 40 ji f KUC 40 WA 40 312 15231 312 15801 40125 sT 15251 ST 15091 i ST 15221 312 15701 assy 2 nn lii X0 30165 N pcs 447 4505 Function Maintains proper tension of main drive 8 9 belt over gears Lubricate gear hub and shaft with sil 8 91 icone grease 8 8 NO 2 SPROCKET AND GEAR ASSEMBLY G 2 SPROCKET amp GEAR ASSY 312 16401 assy 312 16101 HE 30108 l amp ST 15021 ST 15011 t 0 Yes dp _ euer ST 15301 ST 16061 312 16041 30 30185 Ines XP 3510 3 e gt ST 15091 Function Toothed main drive belt assures proper synchronization between No 1 sprocket and No 2 sprocket Lubricate shaft and hub grease Assemble drive gear and with minimum clearance with silicone sprocket shaft Check Observe entry of sprocket teeth into first perforations of film leader Use acetate base film leader or film for this test Adjustment Open lamp house door 312 32101 Loosen screw in end of sprocket shaft and ro tate sprocket plate to correct position Tighten screw and close lamp house door Note Above adjustment not critical Film shrin
12. undisturbed till next pulldown Check Claw screws must be tight Do not over tighten Claw lever is made of almi num Adjustment Holes in claw are slightly oversize Angle of claw teeth may be adjusted slightly by loosening screws and til ting claw Claw angle may be further adjusted if necessary by bending claw lever in flat area Use a pair of long nosed pliers with a right angle bend g12 5 1 2 sT L1451_ amp 312 j pau wa e EOTF iat 11181 Ba 11 AAT 3121136 F ST KE 23 ftzpes XP 2304 pes 312 11961 STILL PICTURE LEVER 312 11301 Function When FULLY depressed heat filter ass embly is placed between lamp and ape rture This action also moves shutter compressing clutch spring 312 11141 This releases shutter pulley allowing it rotate freely on shaft Special shoulder screws 312 11271 are used to mount still picture lever Check Motor pulley and shutter pulley must be properly aligned Depress still picture lever Turn rotary switch to FORWARD posit ion Shutter pulley should ride betwe en shutter blade hub and plate washer on end of shaft without undue friction toward either side Adjustment Relocate motor pulley as necessary ee MARCH 74 8 1 3 WORM GEAR ASSEMBLY 312 11501 Check Worm gear must be mounted and secured to eliminate any end play of shutt er shaft Camtank assembly must be mounted so that there is
13. 2 Improper synchronization 2 See S 8 for adjustment between claw and No 2 sprocket a Plastic leader with non a Replace plastic leader standard sprocket holes with acetate base emul sion type b No 2 sprocket out of b See 8 for adjustment adjustment 27 End of leader strikes 1 Film not trimmed properly 1 Trim as required or top of guide rail replace trimmer 2 No l film guide pin loose 2 Tighten or straighten or bent Or replace as per S 9 2 28 End of leader goes under 1 Guide rail bent 1 Straighten top end of inner guide 2 Shoulder screw 312 31061 2 Tighten See 9 4 rail loose 29 End of film does not go 1 Film not trimmed l Trim through film gate 2 No l sprocket shoe too 2 Adjust as per 8 9 1 or far from No 1 sprocket replace and check teeth slip out of perfo rations 3 Obstruction or burr in 3 Remove obstruction film gate 4 Insufficient side travel 4 See 9 4 for checks and clearance of inner guide remedy rail ST 31111 5 Film shoe or pins binding 5 See 9 5 for remedy 6 Inner guide rail binding 6 Clean See 5 9 4 and adjust 30 Excessive clatter 1 No 1 sprocket claw 1 See 5 9 3 for adjustment during Self Threading timing incorrect 31 Film runs through film 1 No 1 sprocket claw 1 See 9 3 for adjustment gate instead of being pulled down by claw timing incorrect MARCH 74 6 SYMPTOM PROBABLE CAUSE REMEDY 32 E
14. E ASSEMBLY 312 31001 9 3 NO 1 SPROCKET CLAW TIMING Function GATE ASSY It is important that the film perfora tions are in the correct position for claw entry as the film reaches the claw 7 Film damage Self Threading failure E SERIU and excessive clatter during self thr Juhan Aare ein eading operation are the result of Ba Main ua Sr i FT improper timing sez strom N h om f alt GUIDE RAILS Outer Guide Rail ST 31071 is secured to gate plate by two screws and located against shoulder of film gate 312 31101 This assures proper vertical travel of film parallel to film gate Check Diagonal travel of film may cause MOVE film guides to SELF THREAD picture or sound track portion of film switch motor on and thread a piece of to touch raised sections of film gate film Film damage will result Film must travel through gate so that claw pulls film Misadjustment puts Inner Guide Rail ST 31111 film in a position so that claw strikes is spring loaded and held in place film instead of perforation by two shoulder screws 312 31061 Film then runs through gate With screws secured guide rail should IARCH 74 be free to travel with a minimum of clearance under screw head Spring tension must be sufficient to hold film against outer guide rail during operation With film in gate guide rail is moved away from its position against film gate 312 31101 thus establishing side tens
15. aint or sealing wax SOUND DRUM AND FLYWHEEL ASSEMBLY SOUND DRUM ASSY OB 608Z 312 41011 o 313 41301 assy 312 41041 x _P 3512 xP 3510 he Giese ST 41031 312 41051 ST 41061 D XT 40085 Function The sound drum shaft is mounted in the shaft housing with ball bearings The set collar should be installed with minimum clearance Shaft must not bind in rotation S 15 18 Flywheel is held on shaft with plate spring ST 41061 and screw This arra ngement allows the flywheel to slip on sound drum shaft at the moment the 4 film is started in either FORWARD or REVERSE direction This assures minimum film damage Torque required to turn flywheel on shaft in forward direction should be approx 100 110 cent grams or 1 5 in oz Check To check torque use convenient scale and string which may be secured to outer circumference of flywheel with scotch tape Install film in projector and turn switch to FORWARD With projector operating string atta ched to flywheel and scale a reading of approx 20 25 grams 1 ounce should be observed 3112 41051 a XT 40088 ST 41061 Adjustment To adjust remove spring and bend to provide correct tension Be sure the edge of spring does not dig into the surface of flywheel Replace spring if necessary Insufficient tension results in longer delay of sound sta bilization REVERSE RUBBER ROLLER ST 41201 Function When pro
16. b is inserted into hole of blade from protruded side Shutter blade has elongated mount ing holes Travel ghost is at min imum normally if blade is mounted with holes centered If necessary move blades slightly to overcome travel ghost Lubricate cam area with grease Use approx l 1 1 2 tea spoonful Shutter pulley must be clean and dry on both sides Shutter shaft must be clean Lubricate bronze bushing of shutter pulley and shutter shaft with a small amount of silicone oil 5 2 1 5 2 2 AVOID OVERLUBRICATION ST 11281 REEL ARMS MOUNTING Arm is mounted on chassis and held in place with a special locking nut The small screw through the split side of the locking nut must be released before attempting to turn the nut When mounting the arm tighten the lo cking nut to provide the proper tension on the arm and then secure the locking nut by tightening the locking screw TAKE UP SPINDLE ASSEMBLY 312 14201 Function The cork liner provides the necessary friction for film take up The design of the clutch allows for automatic co mpensation and balance of required to rque for empty reel and full reel The required torque can be obtained by adjusting screw on top of arm 312 14181 312 14701 312 14601 3432 14141 MARCH 74 2 3 Check 8 3 PROPER CLEARANCE between cork liner and steel pulley 312 14131 is importa nt With film removed a slight amount of play should be observed wh
17. cate bronze bushing in shutter pulley Fiber gears must not allowed to run dry Use light silicone oil or other light fine oil and cover all teeth with oil Wipe off excess This treatment will generally last many thousands of hours MARCH 74 S 1 CAMTANK ASSEMBLY Shutter Claw and Clutch 312 11001 CAM TANK ASSY 312 11071 RST RT only 319 11501 assy 312 11021 312 1167 3 pes i 312 11131 312 1312 ttr XP 3008S 312 11421 3212 11201 Cass 312 1116 312711231 To11 XP 30068 ST 11231 Zn an ii XT 3505 i i 312 1101 ST 11061 i 4 31211701 assy RST RT on o Te ft i 312 1101 B 62002Z7 XF 3012S 2pcs i w XP 3512 2 ER 312 1661 XP 30085 2pes e 2 o 3412 11031 Dal XP 2304 2pe8 312 11271 2pes wo 30 2pe8 _ al2 11991lesy 37 2304 gt ST 11281 G pes Ze 312 11241 ass 7 312 1141 312 11801 50 6082 N CN WC 40 312 1190 50 60Nz _Xr A0148 Ss sa 4 te 5 u amp 312 11291 x0 3 F dis az Gee Pipe 312 11571 er 312 11041 AXP 35 57 11751 3T 3510 1 s jolt 312 11051 XT 50155_ 4 ER 50 en 2 pes 312 11001 assy 8 1 1 CLAW 312 11191 Function 2 tooth claw is made of extremely hard material precision ground for maximum efficiency Face of claw teeth are ground at a slight angle Claw then looses contact immediately as it begins to retract Film then rests
18. depr 1 Raise the lever ing Motor runs lamp essed lights 2 Motor belt broken 2 Replace 3 Plate washer ST 11351 3 Remove camtank as per loose 1 6 and tighten screw 4 Main drive belt broken 4 Replace or off 5 Take up poor or not at 1 Broken or stretched take 1 Replace all in FORWARD positi up arm belt on 2 Take up arm belt oily 2 Clean 3 Improper friction at spi 3 See 5 2 2 for remedy ndle assembly 312 14201 4 Clutch cam not engaging 4 See S 5 6 Take up poor or not at 1 Broken or stretched supp 1 Replace all in REVERSE positi ly arm belt on 2 Supply arm belt oily 2 Clean 3 Reverse belt broken 3 Replace 4 Clutch cam not engaging 4 See 5 6 1 5 Reverse spring 312 13321 5 Tighten knurled nut weak 312 13311 MARCH 74 2 SYMPTOM PROBABLE CAUSE REMEDY 7 Rewind poor or not at 1 Broken tension spring 1 Replace all 312 19251 2 Broken or stretched supp 2 Replace ly arm belt 3 Supply arm belt oily 3 Clean 4 Take up clutch cork too 4 See S 2 2 for remedy tight or dry 5 Defective rewind gear 5 Replace 8 Main drive belt slips 1 Take up clutch cork too 1 See 2 2 for remedy over take up drive gear tight or dry when large film reel is 2 Oil on main drive belt or 2 Clean and wipe dry full drive gear Replace belt if necessary 3 Spring on tension gear 3 Replace spring ST 15251 too weak 4 Ball bearings seized or 4 Rep
19. device maintains correct lower loop poses See S 9 1 size If sensing roller ST 18021 is pu lled up by film nylon gear 312 18201 Adjustment engages toothed main drive belt and rot A small protrusion located at center ates one full turn of inner side of shoe contacts hub Tension of spring ST 18061 keeps loop casting when shoe is closed If protr restorer stationary during normal proje usion point is too long shoe will re ctor operation main too far away from sprocket drum If necessary remove shoe to file pro Check trusion point to provide proper clear Turn projector on FORWARD mode without ance Too little or no clearance will film Touch bottom of sensing roller to cause film damage cause loop restorer assembly to work This protrusion point of No 2 sprocket Loop restorer sensing roller should make shoe is a little higher than that of one complete revolution only The roller No 1 sprocket shoe should come to rest at 7 00 o clock Note Observe small V spring 312 15181 used to hold shoe in closed or open position When replacing shoe be sure to locate ends of spring in the appro priate holes S 9 13 AUTO TAKE UP GUIDE FOR RST 312 17951 mic AN a Function This guide leads film to take up reel Adjustment after it comes off the release roller Insufficient spring tension could cause loop restorer to rotate more than once Increase tension by repositioning gear 312 18201 closer to hub
20. dingly To disassemble remove two screws in arm cover plate Drive pulley and shaft may now be pus hed out to allow removal of outer clu tch collar Lubricate shaft and hub with silicone grease Clutch cam ST 14071 must be clean and dry Oil or grease on cam may prevent it from engaging pins of outer clutch collar To mount clutch cam rotate drive gear 312 14501 so that pin is at 10 30 o clock Hang clutch cam on pin Carefully sli de outer clutch collar on shaft and tighten set screw Replace main drive belt if necessary 8 6 NO 1 SPROCKET AND GEAR ASSEMBLY F 1 SPROCKET amp GEAR ASSY 312 1540 assy RP 30108 2pes 6 O4 u t n2 15101 ST 15021 n 7312 15991 assy xT 40085 T 51 15011 AXF 30245 Ip PXT uaa WAT30 3pes t m X ST 14071 312 1590 ass Aria i XP 3505 ST 15091 G N A i Aaxp 3510 AL2 15081 8T 14051 87 15071 AST 15111 To mount clutch cam rotate drive gear so that pin is in 1 30 o clock posi tion Hang cam on pin Carefully inst all clutch collar Install set collar ST 15141 allowing a small amount of clearance one 1 film thickness so that clutch collar does not bind Clutch cam must be clean and dry Note If sprocket plate or gear assembly has been removed check sprocket claw timing 5 9 3 after installation Lubricate shaft hub and clutch cover pulley 312 15501 with
21. e as required Tighten screw See also 5 8 Function Clearance between main drive belt and Rewind is accomplished by pushing rewind loop restorer gear is adjusted loose Lever 312 19231 down to Rewind positi ning two screws on hub and relocating on The flat part at the end of the sha hub ft 312 19031 allows rewind gear lower 312 18201 assy ylon gear 312 19161 to engage with 312 18081 another gear upper nylon gear 312 19171 The supply arm spindle is dri 312 18301 assy ven in reverse by gearing the supply N arm drive shaft pm u The rotary switch on control panel cont t XP 30085 must be in FORWARD position WA 30 2pes 90 The cap screw lock nut on the rewind aj gear bracket position When engaged ni Gener A the gears should mesh completely with a slight amount of play to avoid un ST 18061 due wear caused by excessive pressure SAFETY ARM ASSEMBLY 312 18101 Function When projector is placed in Self Thr ead position belt is depressed to make loop restorer inoperative thus preventing possible damage to No 2 film guide Arm ST 18121 is pushed down by pin 312 17391 which is attach ed to interlocking bracket 312 17091 312 19121 312 19161 a MARCH 74 8 13 Adjustment To adjust loosen screw in rewind lever and rotate shaft as necessary Be sure that roller is free to turn before securing screws in rewind lever Adjust cap screw 312 19111 to provide correct c
22. en spi ndle is moved up and down Reel and release roller may also be misaligned causing undue film wear Proper frict ion is checked by using a 600m 2000 reel A smalier size reel with same hub diameter is satisfactory Thread film and operate projector in FORWARD mode Release roller ST 17231 should be no more than to the midway point of its allowable travel provid ing of course that spring 5T 17291 is not defective Too much friction at cork liner may cause take up arm belt to buckle and jam when in FORWARD mode In REWIND the same problem may occur in supply arm Adjustment Replace defective spindie assembly Lubricate between take up pulley 312 14131 and pin 312 14251 with silicone oil If rewind is too weak loosen knurled nut 312 13311 and tighten screw on top of arm If too strong loosen screw after adjusting tighten knurled nut Note 4 Do not overlubricate cork liner Some lubricant will work over to arm belt Insufficient friction will cause fiim to wind too loosely on reel ARM LOCKS Function Arm locks snap into holes in arm when arms are moved into their operating position Spring ST 13181 provides the necessary tension Check Pin should enter hole in arm freely every time arm is raised Dirty gummed pins broken or weak spr ing or burrs in hole or on pin will hi nder smooth positive action Adjustment Clean remove burrs and lubricate with silicone oil 6
23. er depressed fully depressed 2 Heat filter misaligned 2 Bend heat filter holder to cover aperture 3 Heat filter broken 3 Replace 21 Arm locks not entering 1 Pins dirty 1 Clean and oil See 2 3 arns 2 Pin not entering hole in 2 See S 2 1 to remove ams arm due to burrs or mis alignment 22 Uneven screen illuminat 1 Lamp not seated properly 1 Correct ion 2 Foreign object in light 2 Remove path 3 Lamp not centered horizo 3 Turn knurled nut ntally See 5 1 8 4 Defective lamp 4 Replace 23 Uneven focus 1 Dirty film gate 1 Clean 2 Film shoe binding 2 Adjust See 5 9 5 3 Inner guide rail binding 3 Clean and adjust See 5 9 4 4 Lens holder misaligned 4 Adjust See S 9 6 5 Defective lens 5 Replace 24 Light reflections out 1 Film shoe misaligned 1 Realign shoe as per side of picture area 5 9 4 and 5 9 9 2 Edge of film shoe apertu 2 Touch up with black paint re reflections w MARCH 74 Il SELF THREADING TROUBLES SYMPTOM PROBABLE CAUSE REMEDY 25 No 2 film guide Auto matic threading control lever not locking properly 1 Release bracket 312 17981 not entering hook of int erlocking bracket correc tly See S 9 7 for adjustment 26 Leader or film dimpled 1 Insufficient clearance 1 See 8 9 6 for adjustment in first few inches by between No 1 sprocket sprocket teeth shoe and lens holder
24. er the adage Use 70 push 30 turn Also it is important to select right screwdrivers Say use smaller size Phillips screwdriver for the screws XT 23 and XT 30 larger size Phillips screwdriver for the screw XT 35 and up and other types of screws C Lubrication is normally not required for average operation It is recommended that once a year or every 500 hours whichever occurs first the moving parts be inspected for signs of excessive wear cleaned and lubricated Use methyl hydrate alcohol or tri chlor ethylene as cleaning agents We do not recommend carbon tetrachloride due to the dangers involved Polyurethane belts must be clean and dry Remove oil and dirt accumulation with cloth moistened with cleaning agent Ball bearings should be clean and roll smoothly If bearings are noisy or do not roll freely they should be replaced Shafts without ball bearings should be clean and lubricated with silicone fluid or a light smear of silicone compound Remove excess Rollers must rotate freely Shafts and inside surface of rollers must be clean free from burrs scratches or other defects Lubricate sparingly with a light silicone oil or other fine oil Remove excess For camtank use approx 1 2 teaspoonful grease to felt on cam Shutter pulley cone clutch surface and surface of shutter blade hub should be clean f and dry Surface of pulley and cast iron plate washer should be clean and dry Use light silicone oil or fluid to lubri
25. ever half way h Remove two mounting screws XT 5015S i Remove assembly being careful not damage claw Note When installing be sure to a Align motor and shutter pulley b Provide a small amount of play between worm gear and fiber gear c Check position of No 1 guide See 5 9 1 d Check timing of No 1 sprocket and claw See 5 9 3 e Check timing of No 2 sprocket and claw 7 CAMTANK DISASSEMBLY 312 11131 312 11661 31241101 31211161 312 11551 312 1221 312 11181 31211641 a Depress still picture lever half way b Remove screw in end of shaft c Remove plate washer ST 11351 and pulley d Raise still picture lever and rem ove shutter blade and hub e Depress still picture lever part way to expose three heads of cover plate mounting screws and remove screws MARCH 74 f g h i v j k 1 m n o S 2 Remove cover Hole in curved spring fits over fulcrum pin When reassembling be sure that spring is not jammed between end of fulcrum pin and washer ST 11231 Cam shaft 312 11101 should have no end play Worm gear must be installed with out clearance Ball bearings must be free from any play Replace if necessary Two bladed shutter is mounted to hub ST 11281 so that raised semi circle of hub is facing one blade Three bladed shutter is automatic ally correct Shutter blade is depressed in cent er to offset blades Hu
26. ewdriver f Remove amplifier To replace reverse above procedures 5 21 20 RST 2 3 RT 2 3 RM 2 3 MEGNETIC PLAYBACK MODELS These projectors have a magnetic head and associated switch and circuit for magnetic playback In the OPT O0 pos ition the wafer contacts connect the solar cell circuit and exciter lamp circuit to the amplifier The head is located two frames behind the optical sound lens scanning beam The magnet ic sound head is lifted off the film by the action of the lever attached to the end of the switch shaft The bracket and shaft assembly is spring loaded so that when the funct ion switch is in the MAG M position the spring pulls the magnetic sound head down in contact with the magnet ic sound strip on the film the switch head shaft In the OPT O position lever strikes the sound bracket lifting it up Observe this action and adjust the position of the switch lever if nece ssary This is done by releasing the set screw in the end of the switch shaft Wafer contacts must make full contact in either function switch position TRANSFORMER Function Transformer supplies power to halogen lamp amplifier pilot lamp and for 100V 110V area only motot also Check The plug must be connected properly MARCH 74 5 22 ROTARY SWITCH DISASSEMBLY a Disconnect power supply b Remove switch control knob 312 60611 and other amplifier control knobs on front control
27. fier 10 Optical sound lens misal igned 11 Film touching loop resto rer 12 No 5 film guide rollers binding 13 Dirt on sound drum 42 Wow and flutter 1 Rubber roller 5T 17151 binding 2 Sound drum bearings defe ctive 3 No 5 film guide rollers binding or spring defect ive correctly 2 Repair 3 Repair or replace 4 Install 1 Replace 2 Replace 3 Clean lubricate and ad just See S 9 9 4 Replace See S 14 5 Adjust as per S 15 Install if return spring ST 30061 loose 6 Install 7 Adjust See 8 14 8 Re record 9 Repair or replace 10 Adjust as per 5 13 11 Adjust as per S 10 12 Clean and check as per 5 9 11 13 Clean 1 Clean and lubricate as per 5 9 9 2 Replace See S 14 3 See 5 9 11 for adjustment MARCH 74 8 SYMPTOM PROBABLE CAUSE REMEDY 43 Sound not stabilized 1 Insufficient spring tens 1 Bend spring ST 41061 to soon enough after ion on flywheel increase tension 6 starting See S 14 2 Weak spring on rubber 2 Replace spring guide roller MARCH 74 1 EIKI RST RT RM SERIES SERVICE INSTRUCTIONS CONTENTS Item Discussed Section Page Item Discussed Section Page Claw S 1 1 3 Lens Holder 5 9 6 12 Still Picture Lever 8 1 2 3 No 2 Film Guide 5 12 Motor Shutter Pulley 8 1 2 8 17 3 19 Control Lever Worm Gear 5 1 3 4 No 3 Film Guide 5 9 8 13 Claw Position s 1 4 4 No 4 Film Guide 8 9 9 13 Framing 8 1 4 4
28. hassis After securing motor mounting align the motor belt pulley with the shutter pulley See S 1 2 Tighten set screw to flat spot on motor shaft SPEED CHANGE SOUND amp SILENT Sound speed 24 frames per sec is obtained by placing the belt on the large size motor pulley and the cor responding shutter pulley For silent 18 frames per sec place the belt on other pulley set See the illustration below Combination of Motor Pulley amp Shutter Pulley 50Hz _ 60 42 50 60 Hz sound amp sound amp sound only silent silent E I ST 12161 BY _ST 12151 ST 12161 a Motor 2 Pulley 3 l 3 4G ry E gt a B JE 5 amp z S n 312 141801 312 11801 312 11901 Shutter Pulley en MARCH 74 S 18 LAMP HOUSE 20 Open the lamp house door by loosening the locking screw located on the right side of the lamp house The top part of the lamp house door swings out for ready access to projection lamp To correct the uneven brightness on right and left adjust knurled nut ST 32191 right over the inner black lamp cover ST 32191 312 32211 AMPLIFIER REMOVAL Removal and replacement of ier is very simple the amplif a Disconnect power supply b Remove flywheel c Remove knobs on front control panel d Pull out 9 pin plug e Remove one screw at each end of amplifier chassis with Phillips scr
29. ion on edge of film Check for additional clearance of inn er guide rail to accommodate wider film or scotch tape wrapped around film 312 31091 312 31081 312 30101 T 30041 ST 31071 a 9 5 FILM SHOE 312 30101 ST 30061 312 3056 ST 30041 ST 30051 _ST 30071 312 30101 Film shoe is mounted on two pins and held in place by a shoe lock under low er pin Retaining plate ST 30041 is secured to lens holder by two screws Holes in lens are oversize allowing for adjustment of film shoe position 11 Check Outer guide rail must be snug against shoulder of film gate Swing lens in to close gate Clearance between outer guide rail and outer edge of film shoe should be the thickness of one 1 film Adjustment Cut a 10cm 4 length of 16mm film 6mm 1 4 wide Insert between film shoe and outer guide rail Film shoe should be moderately snug If adjust ment is required loosen two screws that hold retaining plate ST 30041 Reposition plate and tighten screws Check Be sure pins do not birid when fully depressed in lens holder With gate closed and lens removed check that hole in film shoe clears the film ap erture on all sides Note Lower shoe pin spring ST 30071 is lon ger than upper spring ST 30061 Extra tension is designed to overcome film movement caused by claw action at lower end of film shoe MARCH 8 9 6 74 LENS HOLDER ASSEMBLY 312 30201 Check
30. ith film between roller shoulders and casting ti ghten screw that holds pin bracket to rubber guide roller shaft Note Clean and lubricate rollers as nece ssary with silicone oil 5 9 10 LAMP HOUSE FRAME CASTING 3112 32111 Function Casting forms part of Self Threading guide system Check Areas where leading end of film tou ches casting must be very smooth and MARCH 74 free from any burrs or imperfections that could cause jamming Adjustment Remove imperfections as required and polish with fine sandpaper or emery cloth 9 11 NO 5 FILM GUIDE TENSION GUIDE 312 17212 Function This guide has roller ST 17231 attac hed to the upper end Close to upper end also is spring 312 17252 In pro per operation the spring tension ba lances the combined resistence of ru bber guide roller sound drum and fl ywheel and tension roller The No 5 guide then rides midway bet ween its limits Wow and flutter are minimized Check Thread film and operate in normal manner After a few seconds of opera tion sound drum and flywheel will come up to speed No 5 film guide should now ride between lower limit pin and lamp house casting 14 Movement of tension roller should not be rhythmic in such a case a roller or sound drum would be binding or out of round An out of round No 2 sprock et drum assembly could also cause the rhythmic motion Adjustment Clean and lub
31. jector is operated in REVERSE roller ST 41201 is carried toward set collar by the main drive belt The rubber roller rotates the sound drum and pulls the film from No 2 sp rocket This maintains the lower loop under the film gate When projector is operated in FORWARD roller is carried away from set collar thus allowing it to rotate freely MARCH 74 The rubber roller must not contact set collar at any time in this mode of operation AXP 30068 12 1131 AST a1l6l WE 20 HALOS ANAS T er u SS ue ard Le Grana a tie a 81 3906 I f 12 41 101 casey AXT 3505 457 4120 Check To check move No 2 film guide to Self Thread position without film in projector turn projector on in FORWARD mode Observe flywheel It should not move Turn switch to REVERSE mode Flywheel should rota te Switch OFF Observe reverse ro ller as you turn inching knob clock wise Rubber roller should be carried away from set collar toward rear of projector i ST 30061 4 ST 41161 Adjustment Spring ST 41111 provides the resista nee required to carry roller along main drive belt Stretch or replace as necessary 16 17 19 MOTOR AND COOLING FAN When mounting motor and fan observe the clearance on either side of cool ing fan Tighten set screw securely Be sure to install belt pulley with set screw toward motor before mount ing motor and fan housing to projec tor c
32. kage will affect synchronization of film perforations and sprocket teeth at No 2 sprocket If main drive belt is removed or skips a tooth or two readjustment may be required Above adjustment may also be made by repositioning main drive belt over No 1 sprocket drive gear until satisfactory synchronization is achie ved See also S 10 SELF THREADING PATH NO 1 SPROCKET SHOE 312 15201 Function IN CLOSED POSITION it keeps film enga ged with sprocket teeth IN OPEN POSITION film may be easily removed To open swing lens holder out then depress film shoe It will remain open Shoe will close automati cally when lens holder is swung back in to close gate Proper clearance between shoe and spr ocket is important Take a piece of film and feed into sprocket using inc hing knob advancing film approx 5cm 2 Add another piece of film over first one and turn inching knob MARCH 74 5 9 2 Shoe should not move when en of seco nd film is fed through Take a third piece of film and feed through sprock et Shoe should move when end of film passes between shoe and sprocket drum A piece of test film is easy to make by cementing three pieces of film to gether Add the second piece to first and third to second in steps of 5 6cm 2 3 long A narrow strip of Scotch Tape may be used in center of film Be sure tape does not touch spr ocket drum thus adding to thickness of film for test purposes Adjustme
33. lace or remove cause binding in take up arm of binding 9 Film spills from supply 1 Clutch cover pulley 1 Remove clean and lubric reel in FORWARD posit 312 15501 binding ate See S 6 1 ion 2 Clutch cam ST 14071 touc 2 Trim cam to provide nece hing pins in clutch cover ssary clearance pulley 312 15501 Replace cam or pulley or both 10 Film spills from take l Drive gear 312 14501 bin 1 Clean lubricate and pro up reel in REVERSE ding on shaft or clutch vide the necessary clear position cover pulley 312 15501 ance See 8 5 including fiber washer behind drive gear 2 Clutch cam ST 14071 touc 2 Trim cam to provide nece hing pins in clutch cover ssary clearance pulley 312 15501 Replace cam or collar or both 3 Edge of main drive belt 3 Remove belt and replace touching shoulder of out in opposite direction er clutch collar ST 14401 Replace belt See S 5 ll Lower loop lost in 1 Reverse rubber roller 1 Remove cause of binding REVERSE position ST 41201 not moving to proper position because reverse bracket 312 41131 is binding 2 Plate spring ST 41061 too 2 Stretch or replace weak causing insufficient friction 12 Upper loop lost in 1 No 1 sprocket shoe clear 1 Check and adjust as per REVERSE position ance too great 5 9 1 2 Claw protrusion incorrect 2 Adjust as per S 1 5 3 No 1 sprocket plate loose 3 Tighten screw in end of shaft MARCH 74 SYMPTOM 12 Upper loop lost in
34. learance Lubricate fiber gear teeth with silic one or other fine oil Wipe off excess SOUND PICK UP Function The focus and azimuth of the optical sound lens ST 40201 are very critical and are adjusted simultaneously Note position of filament of exciter lamp It must be in center line of optical sound lens The scanning beam must be a sharp thin line focused on the film sound track The scanning beam must also strike the center of the sound track In this position it will clear the edge of the sound drum and strike the solar cell Check A frequency test film should provide a good response up to 6000 or 7000 Hz A normal sound test film should produce enough high frequency tones for a plea sant sound balance Adjustment To adjust optical sound lens for focus and azimuth it is necessary to use a test film with a 7000 Hz tone SMPTE PH 22 42 7000 is such a film A Im 3 length of this film should be spliced to form a loop Installed in the projector it will provide the necessary signal for accurate adjust ment 17 It is best to remove lamp house frame casting 312 32111 for adjustments of optical sound lens Install an 8 ohm 10W resistor across speaker output Connect a low reading AC voltmeter and an Oscilliscope acro ss resistor with projector operating set meter and scope for convenient reading with volume control at approx 9 00 o clock 1 4 rotation and treble control at maximum Loose
35. n screw in lens holder bracket ST 40011 thus allowing lens to be moved Rotate lens for azimuth adjust ment Observe clean sine wave pattern on Oscilliscope Set for maximum read ing Slide lens up or down for focus Observe meter reading or Oscilliscope amplitude Set for maximum reading After obtaining maximum reading on both azimuth and focus with simultane ous adjustment tighten screw to clamp lens Observe meter or scope Out put should not drop Seal set screw with paint Check Scanning beam must fall on center of optical sound track of film Excessive noise will be heard together with dis torted sound if scanning beam position is incorrect Use SMPTE JIFFY test film to check It contains a section of Buzz Track Test Film Adjustment To adjust use SMPTE PH 22 57 Buzz Track Test Film A 1m 3 length to form a loop is convenient SMPTE JIFFY Test Film may be used Sound lens bracket is mounted on two pins which slide into holes of main casting eel 5 14 Upper pin is held by a set through the casting Loosen set screw screw to allow lens bracket assembly to slide With projector operating speaker plugged in and volume at approximately 10 00 o clock slide assembly to a position where no sound is heard Too far in one direction will produce a low tone too far in other direction will produce a high tone After proper position is reached tighten set screw and seal with p
36. nd No 3 film guides are lined up Sound drum rubber roller ST 17151 i raised away from sound drum Main drive belt is depressed from automatic loop restorer gear On magnetic models magnetic sound head is raised clear of film path On reel to reel models auto take up guide is lifted System remains locked in position until released by taking up film RST or pulling film on release roller RT No 2 film guide is held in cam bracket 312 17901 by screw 312 17381 A flat spot on shaft pro vides the seat for the screw Cam bracket and interlocking bracket 312 17901 are connected by shoulder screw 312 17081 At other end of guide bar is a hook or catch that accepts the low end b e d away e 8 of release bracket assembly 312 1798 Release roller ST 17231 is attached to upper end of this bly bracket assen MARCH 74 3412 18101 ST 17371 A 312 156014 312 17911 312 17941 312 17381 312 18201 seamen ERE Check When No 2 film guide is pushed to Self Thread position release brack et 312 17981 should just fall into ho ok with minimum clearance Too much clearance at this point will allow No 2 film guide to back up and leave too large a gap where No 2 and No 3 film guide meet The film then could go under No 3 guide Adjustment Use a pair of long nosed pliers to bend as required the pin on release bracket 312 17981 that falls into hook Lubricate hook area with small amo
37. nd of curled film goes 1 Sensing roller ST 18021 l Readjust as per S 10 over loop restorer sen too low sing roller 2 Badly curled film from 2 Straighten first few inch small reel es by drawing across table edge 33 No 2 film guide not 1 No 2 film guide broken l Replace See S 9 7 lined up with No 3 2 No 2 film guide not 2 See S 9 7 film guide in Self Thr mounted correctly eading position 3 No 3 film guide defective 3 Repair or replace See 3 9 8 34 Film goes under No 3 l End of No 2 film guide 1 See 9 7 for adjustment film guide too far from No 3 guide 35 Film stops at sound 1 No 4 film guide bracket l See S 9 9 for adjustment drum 312 17991 and rubber guide roller ST 17151 in wrong position 2 Rubber roller ST 17151 2 Remove Clean and lubrica binding or seized te See 5 9 9 3 Roughness in casting 3 Polish with very fine eme above sound drum ry cloth m Oe 36 Film stops just before 1 Roughness in casting 1 Clean and polish with very No 2 sprocket surface fine emery cloth See 9 10 37 Film guides not releas 1 Release bracket 312 17981 1 See 5 9 7 for adjustment ing when release roller ouc of adjustment ST 17231 is pulled back 2 Return spring ST 17111 2 See S 11 for remedy too weak Il SOUND TROUBLES 38 No sound l Amplifier not switched on 1 Switch on 2 Amplifier switch defecti 2 Repair or replace ve 3 Exciter lamp defective 3 Replace 4 Fuse blown 4 Replace
38. nt A small protrusion located at center of inner side of shoe contacts hub casting when shoe is closed If protr usion point is too long shoe will re main too far away from sprocket drum If necessary remove shoe to file pro trusion to provide proper clearance Too little or no clearance will cause film damage Note Observe small V spring 312 15181 used to hold shoe in closed or open position When replacing shoe be sure to locate ends of spring in the appropriate holes Se 312 151814 i 312 15151 00 KXT 3505 __AXT 3505 xP 3510 4312 15161 nie H a STH1S191 si 15311 WA 30 sT 15171 NO 1 FILM GUIDE ST 17031 Function In SELF THREAD POSITION guide is pushed out over gate and becomes an upper loop former while gliding the film into the gate In OPERATE POSITION guide recedes away from film path into projector body 9 XT 40105 sT 17021 H 1 eS ms 3912 17101 assy RST KT onl N esos oni 8T 17031 o o ammm He XP 3510 ee T 17011 Wc 35 WA 35 Check Film guide travels approx 20mm 3 4 from OPERATE position to SELF THREAD position In Operate position end of guide should protrude 6mm 1 4 from projec tor frame casting This provides 3mm 1 8 clearance between end of film guide and inner edge of film The measurements are not critical The film guide must recede sufficiently to clear film in Operate position Film guide must travel freely
39. ricate sparingly all rollers with silicone oil a Remove burrs or imperfections or replace defective parts b Clean or replace sound drum ball bearing OB 6082 c Replace defective No 2 sprocket drum assenbly d Replace spring 312 17252 if nece ssary 8 9 12 NO 2 SPROCKET SHOE 312 16301 Function In closed position it keeps film engaged with sprocket teeth On SELF THREAD MODELS RST RT shoe is always closed On MANUAL MODEL RM shoe will stay open for easier threading 312 16071 312 15161 312 15181 ST 15171 WA 30 s ANN A 312 16301 assy XT 3505 XP 3510 NA hs ee a ST 15191 Check Proper clearance between shoe and sp rocket is important Take a piece of film and feed into No 2 sprocket usi ng inching knob advancing film appr ox 5cm 2 Add another piece of film over first one and turn inching knob Shoe should not move when end of sec ond film is fed through Take a third piece of film and feed through sproc ket Shoe should move when end of film passes between shoe and sprocket drum A piece of test film is easy to make by cementing three pieces of film tog ether Add the second piece to first and third to second in Steps of 5cm 6cm 2 3 long MARCH 74 15 A narrow strip of scotch tape may be S 10 LOOP RESTORER ASSEMBLY used in center of film Be sure tape does not touch sprocket drum thus add Function ing to thickness of film for test pur This
40. spring weak 7 Bend or replace See 8 9 4 8 Film shoe bent 8 Straighten or replace 9 Defective claw 9 Replace See S 1 1 10 Claw position incorrect 10 Adjust as per S 1 4 11 Claw protrusion incorrect 11 Adjust as per S 1 5 12 Spring in camtank broken 12 Replace See 5 1 6 and or weak S 1 7 13 Claw stroke incorrect 13 Replace cam 312 11131 See S 1 6 and 5 1 7 15 Unsteady picture 1 See previous section dea w ling with noise in film gate MARCH 74 4 SYMPTOM PROBABLE CAUSE REMEDY 16 Excessive noise in gate 1 Claw position incorrect 1 Adjust as per S 1 4 in REVERSE position 2 Claw angle incorrect 2 Adjust as per S 1 1 only 3 Worm gear mounted incorr 3 See S 1 3 for adjustment ectly allowing shaft end play 17 Insufficient framing 1 Claw position incorrect 1 Adjust as per 5 1 4 18 Excessive noise when 1 Motor pulley misaligned 1 Adjust as per S 1 2 still picture lever 2 Shutter pulley binding on 2 Remove camtank assembly depressed Shaft and remove pulley Clean and lubricate See 5 1 6 and 5 1 7 19 Film transport does not l Shutter pulley seized 1 Remove camtank Clean and stop when still picture lubricate as per S 1 6 lever depressed and 5 1 7 2 Still picture lever shou 2 Remove camtank assembly lder screws 312 11271 and tighten screws loose See 5 1 6 and S 1 7 20 Film burns when still 1 Still picture lever not 1 Depress FULLY picture lev
41. unt of grease 9 8 NO 3 FILM GUIDE 312 17121 Function Film guide is raised into position by contact of low end of No 2 film guide to No 3 guide Check No 3 guide should drop down as soon as Self Thread system is released Adjustment Clean Remove cause of binding and lu bricate sparingly with silicone oil 9 9 NO 4 FILM GUIDE 312 17991 amp RUBBER GUIDE ROLLER ST 17151 Function This guide deflects leading end of film up and over sound drum In Self Thread position interlocking bracket 312 17091 depresses pin 312 17361 raising rubber guide roller assembly 312 17401 13 312 17301 312 17991 ST 17191 Check In Operate position rubber guide roller should rest firmly against sound drum Spring ST 17371 provides the necess ary tension Clearance between lower edge of int erlocking bracket and pin 312 17361 should be approx 2mm 1 32 Too small clearance will cause shou lders of rubber guide roller to be pressed against casting when in Self Thread position If rubber guide roller does not turn freely excessive friction may cause film to bind when threading Adjustment Push No 2 film guide to Self Thread position a Insert two layers of 16mm film between shoulders of rubber guide roller and lamp house casting b Locate pin 312 17361 so that it touches bottom edge of interlock ing bracket c While pressing rubber guide roller toward casting w
Download Pdf Manuals
Related Search