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Kdoak Pageant Service Manual
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1. era 4 az sza 3329345 wo CI 2 er zi 4 t2 gra x vi gu 3 ip t raD wa HOLIMS 1081405 8315 OL 038 HOLMS TOYLNOD H31SVW O1 25919 NOILDINNOD ONNOYD OL 3345 HOLIAS TOaLNOD 3315VW OL 31IHM ADS 3 O4 OL run Er Con gE u3WHOJSMYMI 159661 Ek i4 ONOHd 12345 HOD HIMOd 155461 1 9 i dWYT isa ASSY 199005 LLOHL 3 HOLIAS p HOLIMS TONLNOD TONG 05681 ES ULNOD 3NOL AMYiON SOd 0661 25 HOLIMS 10d0 049791 15 OZE IL HO ZOENT NOISISNYHI dMd 929661 su 046 11 BO ZOENZ BOISISNYNL dNd 957661 5 HO SENT MOLSISNYHUI NdN OZELNZ HO GONG MOISISNYHI dNd PZPSST so DZELNC MO GOLNZ MOISISNYMI dNd 757651 rb OLELNZ OINCMOISISNYHI DLELNZ HQ 6014 YO Peres Uo OZSINE SIUN 1 30010 619 PUD 30010 da OL N3IYD 30010 A 5619 245 300id Ald AO0Z EGLFPE 1 42 HINVING LINDMID LAD 1370IA 20255 VOLSIGYLS 61 H5 0313 24406 GaMOL 09681 672 HIM AOOL 4617651 2 0 NIM 001 947651 92 5 001 609651 SED AOS GAWWOOL BLYSSL PE D ADE Q4WPiO0 019 520 AINS AOF 00 AOS 9305007 000191 NIN A OG GdWWoOt B
2. FORWARD BELT TIGHT e Belt shifting lever eccentric 1 screw and lockwasher and toggle levers 2 5 22 3 Adjust speed shifting assembly by positioning the assembly and rotating lever eccentric so that REVERSE a Shifting can be accomplished only in the forward position of the control lever b Drive belt does touch either shifting roller in sound or silent speed c Shifting rollers do not touch pulley d Speed shifting can be accomplished while rotat ing mechanism by hand 5 22 4 Install motor and switch connections NEUTRAL BELT SLACK 5 22 5 Adjust forward and reverse shifting by moving toggle lever loosen screw 1 and rotate drive pulley eccentric so that Belt drives mechanism in forward direction b Rubber drive on motor pulley drives mechanism in reverse direction Drive belt is slack and rubber drive does not contact pulley in OFF position d Above three conditions are met under any operat ing situation Lubricate speed shifting rollers with A amp 061 3778 Lubricant BELT SLACK V V 5 23 5 23 1 Remove a Mechanism from case Section 5 1 1 b Motor by loosening setscrews in pulley and fan and by removing three motor mounting screws Note grounding spring on one of the screws 5 23 2 Install parts in reverse order of removal be sure setscrew
3. vw ww wew v vw wv 5 19 SUPER 40 SHUTTER 5 19 1 Remove Super 40 shutter from projector Section 5 18 1 a tbru c Shutter can now be disassembled as required 5 19 2 Install as follows a Place the locking lever 1 in the lock position and assemble the inner 2 and outer 3 blades to the shutter frame 4 The inner blade can be identified by the small bumps around the center b Make sure that the actuating studs 5 and stop studs 6 are positioned as shown Assemble the cam to the shutter with the timing lug 8 engaging the timing hole 9 c d e f Rotate the cam to position the timing hole at the top Tilt the mechanism slightly back and holding the assembled shutter as shown sneak up on the shutter shaft making sure that the timing lug 1 of the shutter engages the timing holes 2 of the cams Replace the washer and shutter shaft nut left hand thread Do not tighten the nut Move the lever to the unlocked position and man ually check the shutter blades for freedom of move ment If there is any binding recheck for proper assembly of the various parts If shutter action is satisfactory proceed with final orientation Final orientation remove the threading knob The flat side of the shutter shaft should face away from the lens holder casting when the shutter timing lug is toward the aperture If it is not hold the shutter te keep i
4. A o ne oo 0 909 9 Ct o GS din hd C C e 7 2 SWITCH AND TERMINAL CONNECTIONS 1 PI EARLY MODEL POWER i SUPPLY WITH SIX COLOR CODE CONNECTOR TERMINAL STRIP K BLACK W WHITE e B BLUE GREEN LARGE G GREEN RTO CIRCUIT BREAKER A RED TO CIRCUIT BREAKER GREEN TO EXCITER B TO EXCITER LAMP iL 1 EL SE Da EEE POWER TRANSFORMER MOTOR LAMP P a 4 gt MASTER CONTROL SWITCH NE WEE RET 1 K A i SOLAR G INPUT l 1 THREADLIGHT RECEPTACLE AND AMPUFIER SWITCH euer Ko D VC TAMPHIFIER en DISCONNECT TO REMOVE AMPLIFIER AMPLIFIER WILL STILL OPERATE A DISCONNECT TO REMOVE AMPLIFIER COMPLETELY DISCONNECT TO REMOVE MECHANISM SWITCH AND TERMINAL CONNECTIONS AV 126 TR 7 3 VOLTAGE CHECK AND COMPONENT LOCATING DIAGRAM 9 b CIRCUIT gt GROUND 2 2 3 CIRCUIT GROUND VOLTAGE CHECK AND 3 92 OW WolD3ON4 ANNOS INVIOVA 004 HOF 1NIVIO OUVWOHOS tGHITdAY 838W N TYNSS amp SNINNIO38 UINHOISNYVUL HIMOd 459651 1 1 85151 1 95 79313 2 TA9 4909 217551 8 3 LLYM 2 1 50150
5. ARM AND BUSHING ASSEMBLY BALL 10 9 WASHER SUPPLY SPINDLE ASSEMBLY 5 26 3 Install spindle and pulley in supply arm assembly with steel bushing and bearing balls as follows a Using a small vise or similar means to hold the spindle assembly firmly in a vertical position place washer on the shaft b Apply a light coating of Grease A amp 061 3655 to the upper surface of the washer and place ten bearing balls around the shaft the grease will retain the balls in position Place the bushed end of the arm assembly over the end of the shaft support the free end of the arm assembly with a block of wood of suitable height and carefully lower the arm so that the bearing balls go into the recess d Apply a small amount of grease to the upper recess and place ten bearing balls in position Add the other washer and place the pulley on the shaft hub toward the washer f Insert 005 inch thickness gage between hub and washer g Clamp the pulley and spindle together and using the hole in one side of the hub as a guide drill 1 16 through the shaft and through the other side of the hub h Fasten pulley on shaft with the pin and remove gage e 83 O m A o EA AA eE A 5 27 ELEVATING MECHANISM 5 21 1 Remove Mechanism from case Section 5 1 1 b Parts from mechanism as required 5 27
6. 1 Remove the control knobs tone control put friction fit volume control setscrew c The 25K potentiometer R 34 is used to compen i sate for the slight variations in the sensitivity of different solar cells It will require adjusting only if the solar cell exciter lamp or transistors Ql or Q2 are changed Adjust to obtain the proper un distorted output Section 6 3 3a d When replacing either Q7 or Q8 2N307 or T1 370 Transistor apply a moderate amount of Transistor 7 5 Silicon Compound No 8101 General Cement Electronics Company to both sides of the insulating washers 6 3 3 Specification input voltage to amplifier 117 a Output 6 7 volts minimum 400 cycle test film as signal source no visible distortion on an oscill iscope a slight amount of filling in will be visible in the lower half of the signal which does not affect the undistorted output 2 Unsolder the two leads of the Diode Stabistor NY b Sensitivity CR 5 that is cemented to the amplifier plate Sensitivity Tone Control full counterclockwise 1 Film Channel 8 watts 6 9 volts output 1000 cycle signal of 0 66 millivolts 4 db applied directly to the photocell input socket 2 Microphone Channel 8 watts 6 9 volts output 100 cycle signal of 22 millivolts 3db applied directly to the microphone input recept acle 3 Phonograph Channel 8 watts 6 9 volts output 1000 cycle signal of 220 millivolts
7. 2 1 01 GOLEL LLYN 2 1 006900 LIYA 965091 BAEPEL 0405 YIMOd OL N3335 ALA L UWOLPXU F SLNENGAWOD H3l3I1dWY 804 JUL YS OL NIJS C 00000000 00 O O O O O O 00064 y SHIELDED SLATE BLUE WHITE ORANGE gt 2 35 RED 5 c COMPONENT BOARD YELLOW 1 WHI 7 6 COMPONENT BOARD BLUE Doe E OY I a DENN
8. 2 Install Parts in reverse order of removal so that knob is vertical when elevation is fully retracted Lubricate the rack teeth pinion teeth and both sides of the bracket with A amp 061 3619 Lubricant as required 5 28 SOLAR CELL MOUNT AND CABLE ASSEMBLY 5 28 1 Remove a 5 c 4 Sound optics by unhooking the mount spring from tlie exciter lamp bracket Mechanism from case Section 5 1 1 Flywheel Section 5 18 1 and retaining rings from sound drum shaft so sound drum can be slide out far enough to remove the solar cell mount screw Screw holding the cable clamp 1 and stand off 2 in place and discard these parts later models do not use these parts Rubber sleeving 3 from cable and discard then the cable plug by desoldering and the mount and cable assembly 5 28 2 Install Parts in reverse order of removal Do not use cable clamp 1 standoff 2 or rubber sleeve 3 late style cables are shorter and have a strain relief within the mount 25 5 29 LAMP SOCKET 5 29 1 Adjust Lamp socket position by turning screw while observing projected filament image using a loupe in front of the lens filament image should be centered 5 30 SOUND SYSTEM Optics and Related Area 5 30 1 Adjust by Sound optics bracket assembly 1 to center the scanning beam Observe the beam in reference to the lower edge of sound drum and center of solar cell The edge of
9. that conditions in drawing are met Switch connections see Master Control Switch page 30 and reassemble projector d Lubricate following points with A amp O61 36558 Grease Teeth and cam of switch cam and pinion Pivot area of projector control lever Pivot rea of projector switch cam yoke a Switch and nut in bracket and tighten nut Shifting arm stud Contact points of interlock lever e 2 e eo 00609075 oo e 000 5 22 SPEED AND DIRECTION CONTROL MECHANISM See Section 5 17 for illustrations of the various types of speed shifting lever assemblies 5 22 1 Remove a Motor Section 5 23 b Switch connections c Stud holding pulley shifting lever to pulley arm by removing nut and lockwasher 1 d Pulley assembly by removing screws 2 and eccentric 3 e Belt shifting lever eccentric by removing screw and lockwasher 1 f Toggle levers 2 21 g Two hex socket head cap screws 1 holding shift ing assembly to casting h Shifting assembly by loosening screw 2 and manipulating assembly i Parts from assembly as required 5 22 2 Install Shifting assembly on projector b Mounting screws 1 and 2 loosely c Pulley assembly eccentric and screws 2 amp 3 d Stud holding pulley shifting lever to pulley arm nut and lockwasher 1 continued 5 22 2 Install continued
10. the various tube manufacturers 27 35 TO 50 WATT SOLDERING IRON FLUSH A SOLDERING AIDS PLIERS 6 2 TRANSISTORIZED CIRCUITS GENERAL Basic trouble shpoting of a transistorized circuit is similar to tube circuitry except that the operating voltages are generally much lower Voltmeter checks are done in exactly the same manner but care should be used in making ohmeter checks since component damage can result from the applied current Although the transistor is probably the most reliable component in the circuit and should be the last component to be suspected a transistor tester is a good investment and several good inexpensive models are available certain amount of care is needed when handling a transistor they are sensitive to heat and since the leads are generally quite small proper orientation in the socket is important basic understanding of transistor operation and theory is very important to the serviceman and many sources of this information are available Articles appear in nearly every issue of the various technical magazines and several manufacturers publish transistor manuals which contain a discussion on theory construction servicing etc More detailed information can be found in various books such Basic Electronics Volume 6 Rider Publication Transistors Theory and Practice a Gernsback Publication and many others 6 3 SERVICING THE AV 126 TR AMPLIFIER To remove amplifier f
11. the scanning beam should clear the rim of the sound drum by 012 and the light from the scanning beam should strike the solar cell in the center Loosen lockscrew 2 and locknut 3 then turn adjusting screw 4 as needed Tighten locknut 3 and apply a small amount of air drying cement to screw and locknut 030 005 Position of pressure roller for proper overhang of sound track beyond the sound drum The distance between the inner surface of flange 1 on pressure roller and the flat surface of the sound drum 2 should be 030 005 Roller position must insure that inner raised surface of sound drum contacts the film only in area between picture and sound track Use Buzz Track Test Film 760383 and turn hexagonal spacer to move pressure roller assembly or out as required so that neither tone is heard or both tones can be heard at the same level 26 Sound optics bracket assembly to focus the sound optics using 5 000 cycle test film 760382 With the fidelity control lever 1 in the center of its travel loosen the lock screw 2 and turn the eccentric 3 until the sound output is at maximum Tighten lock screws 2 and 4 and apply a small amount of air drying cement to them d Sound optics for azimuth alignment and for mini mum microphonics Loosen lock nut 1 and tum screw 2 to adjust sound optics for maximum res ponse using 5 000 cycle test film 760382 Loosen lock nut 3 turn th
12. 3 db applied directly to the phonograph input recept acle c Power supply 1 DC voltage to the amplifier 25 to 30 volts no load measured across the filter capacitor C 13 at line voltage 2 DC voltage to the exciter lamp 4 0 0 2volts with ripple content not exceeding 150 millivolu measured across a resistor load of 5 ohms 1 5 watts in place of the exciter lamp at a line voltage of 117 Measured across a 6 ohm 25 watt dummy speaker load 3 Remove the four circuit board mounting screws arrows and swing board over 17 SCHEMATIC AND WIRING DIAGRAMS 7 1 POWER SUPPLY AND MASTER CONTROL SWITCH 1 159637 POWER TRANSFORMER CR 1 2 3 4 164193 750 MA 200 DIODE R 18 154868 500 OHM 210 2 WATT WW R 26 159633 25 OHM 25 WAIT 14 AND15 159634 1300 MFD 35 V D C ELEC R 18 1 BLUE RED AND YELLOW BLUE S lt RED 4 Ad i RED TO CIRCUIT CR 1 2 3 4 BREAKER GREEN TO POWER CORD NN BLACK TO MASTER CONTROL SWITCH BLUE TO EXCITER LAMP DISCONNECT TO REMOVE MECHANISM POWER SUPPLY W TO MOTOR K TO LAMP W TO AMPLIFIER SWITCH TO AMPLIFIER SWITCH X A W TO LAMP TO POWER CORD TO TRANSFORMER R TO AMPLIFIER SWITCH K TO TRANSFORMER W TO POWER CORD DISCONNECT TO REMOVE MECHANISM DISCONNECT TO REMOVE AMPLIFIER COMPLETE MASTER CONTROL SWITCH mH A
13. 51 905041 YIMOd 155651 9025 HOLSIEVLS 77651 5 42 06 117651 t2 ALVA 2 1 35 002 ZYPES HILIDXI usa 23713 72787405 17651 T 23137247462 G4WS 307651 9 2 LLYMA 2 1 565 PUY00Z dWYT NOLLDSEFOSd NIW A001 Q3WZr9 617851 42 2 0313 72747 62 807551 5 5 MM LLYM Z BOL 89895 ASSY 1230065 Li AHL gt NIW 001 Q3WEEO 717551 9 2 72313 2 A01 GAMST 220191 LLYM 2 1 5015 6LETLE HILIAS dv rs NIW 001 04220 507651 st 27Q A 001 679551 2 LLYA 2 1 5015376 695048 HDLIMS TONLNOD Oud 555651 es AOS Q3WWOOL 817551 233 2 QA0L 220191 gt LAYA C 1 500 90 91861L 104 LNOD INOL ANVLOM 504 S 557651 es AOS Q3WBLOO 120191 Ez 93213 2707401 QAWSZ 20191 1 5 LLVM 2 1 01 5049055 07691 HOLIMS 3417 Lada 048951 15 NEW AGS Q3W8 100 120171 2 2 10 MST 09791 75 4 Live 2 1 01 046051 9046 11 HO 40 2 HOLSISNYNL dNd NIW AOS 93700 957551 12 5 11 2 1 501249001 846019 LLYM 0 1 0033081 04 11 HO Z0ENZ HOLSISNYNL dNd 907551 49 NIW AOS 14500 020191 922 LLVM 2 1 5 0 249091 Tel LLYM C t v EDTL YOEINZ HO SENT YOLSISNYEL N N STr s1 OG Q3WWOOL 817661 81 0 LLVM G L 952405270 249091 15 5 LLVA 2 1 ESTES 52251 O 1NZ 601 BYOLSISNVUL dNd werest sb DATA VOAM 220191 LLYN 2 1 HOLI
14. IPSEL 81 0 20973 2707401 200091 21 9 19318 DOA 919661 91 0 D ASE 0990081 2333 0ASt OL NMOYE 9313 TAOS Q4W00 1 919651 ELD 0373 0745 588090 210 TD OADOINOLsasWEP O 1 2 GaWOL di D 274406 01961 69 0369 82 MIW AOS QWWOS 15 93173 D G ASDQJMSL P 19913 GAWS DATA GAWS 2201091 1 DOA 001 0482200 69681 i 2373 i 72373 o a A0 Gamst ZZO 15 i La ied MEO rtu i 2 1 XOL Puqegg 1132 YV1OS LIVA Ui tas IER i 133205 CM LAS LINA DAS prre PE LLYM Z L SOLACE 05001 4399345 OL NMOUE LLVME LNOLDNEG 991 60 TOYLNOD svig NOUS 809651 mL TOHLNOD XS 209651 2 8 ALVA SZ X lvewesz 94 4 LLVMENOLSGOP 0 1 52 LIYA L LWOLPuqo0tt PORES 60691 ELY 2 0 806081 ZZA LAVA T L 5012060 908081 ti LLYMA U L MS LAYA 2 1 45 5449002 MM LLYM 5 301204006 98751 LAYA 7 600048 LLYA T L HODET 6950 8 ALYM 5 1 00201 910611 NOLLDINNOD ANNOYD FESR LLVME LNOLPNOGE i EAN POCHE FAG 157 i F Alddns LAVME L OLFAL 9lB ll NyImod OL N3345 LLYA 5 1 SOL ENOL 008971 ILVAZ 50151 ALYA 2 1 NOI LAYA
15. NEE 995921 0 LLYM 2 1 YOU 918611 O4 1NC HO BOLNZ HOLSISNYNI 957651 fO 72313 2747405 441940051 91 651 9 2 LLYM 2 1 5045095 998751 52 5 ALVA 2 1 5015 1 00591 048145 MO 601 HOLSISNYHI dNd ED 72313 gt 7 7 56 GAWOOEL 759651 8 2 TOYLNOD SVIG 2005 827651 82 4 LIYA 2 1 SOLD 918611 OZELNZ YO 601NZ HOLSISNYEL dNd vCr6sl Cb I 0 AST 759651 1 2 TOYLNOD 3Wn10A 227551 LLYM 2 1 SOLTALE 8656921 OZ 1NZ NO SOLNZ HOLSISNYaI 29561 1 6 lt gt 23113 5 0 4 0051 9 6 1 LLVM ST SOL 559661 T a LLYM 2 1 3OLsuozy 604951 4 007 YWOSZ E tr9L ru 5313 2 T ADS 04005 588291 2 2 11 80 01 9 9 LOPESI stu ELVA 2 1 5011 996921 4 00 VWOSZ 61991 585 2 Q A001501 030890 29091 1 2 ALVA 2 1 501 PUYODTT 907651 rcu LLVA 2 1 5 9 355091 3d0lQ Ald A00Z YWOS 561791 cu 231372747404 0401 17661 LLYM 2 1 501322 506921 LLYM 2 1 855951 ALd A007 YWOS 261791 1 25 2313 72747405 018521 017651 LLYM 2 1 017N89 805021 ata LLVM 2 1 SOL FHOLY 101921 S1N3NOdWOD HAldITdWY JUNLYTININON awa 36104 yey o OYO YHIALYJ INANI ON 32NYOZ4NI S3OYI1OA 20 INNSVIN 1 3OLD3IONd I l 53124209 m SLIOA ezasg BLD SZLSOL AVE D op
16. e volume up to maximum and while tapping the sound head casting turn screw 4 to adjust for minimum mierophonics Tighten lock nut 3 and apply small amount of air drying cement to screw and nut Repeat azimuth adjustment lock nut 1 and apply a small amount of air drying cement to screw and nut Lubricate the two recesses of the sound optics with amp 061 3655 Grease 9 A A AB AF 48 4 8B A OB m A c a e Oooccoo0oo0oo0o0o0v 92099090 6 AMPLIFIER SERVICING technical write up giving details of the all transistor amplifier for the Kodak Pageant Sound Projector Model AV 196 TR is available from Eastman Kodak Company Apparatus Service Department Rochester 4 New York 6 1 PRINTED CIRCUITS GENERAL Servicing of printed circuit boards requires somewhat different techniques than those employed in trouble shooting wired amplifiers For one thing more care is necessary in desoldering and soldering Because exces sive heat applied to a component board may cause permanent damage to it a 30 10 50 watt pencil type soldering iron is recommended Generally it will be found that removal of components is easier if flush cutting pliers are used to clip off the ends of the leads and some of the solder at the joint be fore the iron is applied to heat the joint Hold the tip of the iron to the soldered joint only not to the pattern near the joint Avoid prolonged hea
17. rom the case see Section 5 2 6 3 1 Power Supply Since it is necessary to disconnect only the solar cell lead when removing the amplifier from the case the amplifier can still be operated and tested It may sometimes be necessary to use extension leads to allow easier accessibility to the amplifier If a separate power supply is required use a source of DC voltage that will supply a negative 25 to 30 volts measured across the amplifier filter capacitor C 13 Tool 1034 is available for this purpose or one can be made as shown below using parts from the amplifier power supply AC LINE VOLTAGE 1 159637 TRANSFORMER RCA TYPE IN 3253 2 164193 SILICON RECTIFIER 200 PIV 750 ma 1 159416 1500 MFD 5VDC ELECTROLYTIC CAPACITOR TO AMPLIFIER CIRCUIT BREAKER t TO AMPLIFIER CIRCUIT GROUND 0 9 00 DN NA c C A gt FE COO C Q O OO CCO 6 3 2 SERVICE HINTS a Although many of the components can be removed b The 500 bias control R 28 is variable so that and replaced withoutseparating the printed circuit the exact value of correct bias may be selected board from the amplifier plate these operations can for any given set of transistors If any of the be more easily performed if the amplifier is opened wansistors are replaced it may be necessary to up To do this proceed as follows adjust R 28 to obtain the proper undistorted out ut Section 6 3 3a
18. s are on flat of motor shaft and the pulleys are centered 5 24 TAKE UP ARM 5 24 1 Remove a Mechanism from case Section 5 1 1 b Arm assembly by removing two screws holding it to the casting Parts as required see breakdown below 5 24 2 Install parts in reverse order of removal Lubricate the arm spindle pivot and release lever pivot with A amp 061 3834 Oil 20 06 8 25 TAKE UP SPINDLE 5 25 1 Install see breakdown below Lubricate the following points with A amp O61 3834 Oil Spindle pawl pivot Inside diameter of pulley ratchet Spindle 2 0 5 26 SUPPLY SPINDLE AND PULLEY 5 26 1 Remove a Belt from pulley b Pultey frorn spindle by driving out pin Spindle by carefully withdrawing it from the arm NOTE The spindle bearing of later model projectors is a steel bushing with ten loose bearing balls on each side of the bushing instead of a bronze sleeve bearing 5 26 2 Install spindle and pulley in supply arm assembly with bronze sleeve bearing as follows a Insert spindle assembly in bearing then place pulley on shaft hub toward bearing b Insert 005 inch thickness gage between hub and bearing c Clamp the pulley and spindle together and using the hole in one side of the hub as a guide drill 1 16 through shaft and other side of the pulley hub d Fasten pulley on shaft with the pin and remove gage A PIN Qi y PULLEY
19. t from moving and turn the shutter shaft until the flat side of the shaft is correctly positioned Hold the shaft with a suitable wrench and tighten the shutter nut left hand thread Recheck the shutter blades for freedom of movement Replace the threading knob 8 Lubricate weight and blades with small amount of A amp 061 3778 Lubricant as required 5 20 SHUTTER SHAFT AND BALL BEARING 20 1 Remove a Planetary gear assembly Section 5 12 1 a thru b Pull down parts Section 5 18 1 a thru d c Shim washers 7 5 d Ball bearing retaining screws and lockwashers 1 Loosen 2 setscrews 2 180 degrees apart in worm 3 e Shutter shaft 4 and ball bearing 5 by pulling shaft from pull down side Exploded view shows worm shutter shaft retaining ring 6 and ball bearing 5 20 2 Install Parts in reverse order of removal making sure that worm is centered see also Section 5 18 2 and 5 18 4 Make necessary adjustments to planetary gear assembly Section 5 12 3 and chain Section 5 11 3 5 21 CONTROL SWITCH SET SCREW SWITCH SPRING 5 21 1 Remove a Exciter lamp cover Section 5 1 1a b All wire connections from switch c Switch by loosening setscrew in cam sliding cam up out of mesh loosening switch retaining nut and sliding switch down and out 5 21 2 Install PERPENDICULAR CAM CONTROL LEVER b Cam in mesh with control lever so
20. ting of the joint remove the component as quickly as possible using pliers the forked end of a soldering aid etc Very often the forked end of a soldering aid can be used to reach in on the underside of a printed circuit board and remove a component located in an area that might be difficult to get to with some other tool The reamer tip can be used to open up the holesin the board for the component leads Although a replacement component can usually be in stalled on the pattern s de of the board without affecting amplifier performance the AV 126 TR arnplifier is de signed so that most components can be easily installed in the original position Again avoid prolonged heating of the printed pattern at the joint when installing the component If printed conductor is cracked a simple repair can be made by first scraping the conductor about 1 4 on either side of the break to clean the copper and then applying a small piece of bare hookup wire over the break The wire should be tinned before placing it in position Hold the tip of the on the wire just long enough to allow the applied solder to flow across the break so that the wire is imbeded For detailed information on design and construction and additional hints on servicing printed circuits refer to Printed Circuit Diagnosis Made Easy a Howard W Sams publication to Rider s Introduction to Printed Circuits and other books also to bulletins available from
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