RCA-Victor-Co-Inc-Changer 电路原理图.pdf

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1、MANUAL OF 19S0 MOST-OFTEN-NEEDED RADIO DIAGRAMS TYPE AND MODEL IDENTIFICATION The record changer mechanism may be used either with or without a metal motorboard. When a metal motorboard is not used, the in strument cabinet serves as the motorboard. Two major changes have been made since the start of

2、 production. One change is the type of pickup arm rest, the original design used a visible rest on the motorboard or instrument cabinet which has been replaced by a rest on the sub-base. The other major change is in the record separators, the original type used rotating gear type of separators which

3、 were replaced by a push-out type of separa tors. Many other changes have been made and there are differences in the color and finish of some parts when used with certain instru ments. These changes did not necessarily involve a change in the identification applied to the bottom of the mechanism sub

4、-base. Five different pickups are in use: Two (2) crystal pickups, one (1) magnetic pickup and two (2) ceramic pickups. The RP 168 Series record changer is used in the following instru ment models : RECORD PLAYER ATTACHMENTS 9JY, CP-5203. 451. QJY RECORD PLAYERS (without radio) 9EY3. 9EY31. 9EY32. 9

5、EY35. 9EY36. 45EY. QEY3 RADIO PHONOGRAPH COMBINATIONS 9QV5 9W51 9W78. 9W101, 9W102. 9W103. 9W105. 9W106. 9Y7. 9YS1. A55. A78. A106 RADIO-PHONOGRAPH-TELEVISION COMBINATIONS 9TW309. 9TW333. 9TW390. TA128. TA129. TA169. S1000 CAUTION 1. Avoid handling the pickup arm when the mechanism is in cycle. 2. D

6、o not use force to release a jam. 3. Do not try to remove the records on the turntable if the turntable is stopped in cycle. 4. Do not try to operate the mechanism if the separator knives protrude from the center post when the mechanism is out of cycle. During service, the position of the star wheel

7、 on the underside of the record changer may be accidently shifted: this may cause the separator knives to be extended when they should be concealed. If the separator knives are thus extended turn the power on so that the turntable is revolving, push the start-reject knob and allow the mechanism to c

8、omplete a change cycle. LUBRICATION A light machine oil (SAE No. 10) should be used to oil the bearings of the drive motor. On all bearing surfaces, excepting the motor bearings, Hough ton STA-PUT No. 320. or equivalent, should be used. On all H rcaVictor RP-168 Series 45 R.P.M. Automatic Record Cha

9、nger Presented on pages 133 to 144. REPLACEMENT PARTS -1- =K ILL. i DESCRIPTION other sliding surfaces. STA-PUT No. 512. or equivalent, is I I 1 required recommended. Parts list continued on page 134. SUB-BASE ASSEMBLIES 74256* 16 WasherVellutex washer pivot arm shaft bearing washer) 74080 17-19 Was

10、herWasher for turntable bearing 72349 18 BearingTurntable thrust bearing 72688 20 WasherC* washerturntable assembly retainer 74079 22 StudIdler wheel mounting studior Sub-base Types I. II, III, IV. early VI, and early VII 74078 23 WasherDampening washer Ior idler wheeltop 74077 24 WheelIdler wheel i

11、or all except Model CP-5203 74470 24 WheelIdler wheel Ior Model CP-5203 74132 HardwareMotor mounting hardware consisting ol: 25 Three hex nuts 26 Three lockwashers 1 27-72 Six ilat washers ( 28 Three spacers j 74087 29 GrommetRubber grommet to mount motor (3 re quired) 74089 30 SpringIdler wheel ten

12、sion spring (.195” O.D. x .593” 14 turns) 35969 34 WasherC” washer to retain pickup arm lilt lever 74073 35 LeverPickup arm lilt lever Ior mechanisms without dashpot . 74757 35 LeverPickup arm lift lever for mechanisms with dashpot _ 35 LeverTwo piece pickup arm lift lever (use No. 74073 or No. 7475

13、7 for replacement) 74805 - SpringTension spring ior two piece pickup arm lift lever (.170” O.D. x 3A) 33726 36 Washer”C” washer to retain trip pawl 74072 37 PawlTrip pawl 74453 - WasherBearing washer between trip pawl (Ill. No. 37) and trip pawl lever (Ill. No. 66) 35969 38 Washer”C” Washer to retai

14、n main lever 74076 41 LeverMain lever (director lever) for use with turn tables having rotating gear record separators 74857 41 LeverMain lever (director lever) for use with turn tables having push-out record separators 74084 42 SpringMain lever spring (.195” O.D. x .800”271/4 turns) - 43 ScrewScrew

15、 to mount muting switch (No. 6-32 or No. 6 self tapping) - 44 WasherNo. 6 lockwasher used with Item 43 (No. 6-32 screw) 74070 45 BaseSub-base assembly complete with all staked and riveted parts, including idler lever and reject leverType I without pickup rest 74743 45 BaseSub-base assembly complete

16、with all staked and riveted parts, including idler lever and reject leverType III with pickup rest 74468 45 BaseSub-base assembly complete with all staked and riveted parts, including idler lever and reject ieverless No. 74473 bracketType IVfor RP- 168-2used only on Model CP-5203 74473 - BracketMeta

17、l bracket with power input connector and audio output jackRP168-2 only 74856 45 BaseSub-base assembly complete with all staked and riveted partsless idler lever and reject lever Type Vwith pickup rest 74803 45 BaseSub-base assembly complete with all staked and riveted parts, including idler leverles

18、s reject leverType VIwith pickup rest 74860 45A-1 LeverReject lever bottom section for Bub-base Types V, VI, and VII 74861 45A-2 LeverReject levertop sectionfor sub-base Types V. VI. and VII 74814 45B PlateIdler wheel mounting plate and studfor sub- 1 base Type V 74870 45B-1 RetainerIdler wheel reta

19、iner (spring sleeve) for use with No. 74814 plate (45B) 75081 45B-1 RetainerIdler wheel retainer (horseshoe washer) for use with sub-base Types VI and VII (late produc- 74804 45B-2 WasherIdler wheel bearing washer (Vl O.D. x .185” I.D. x .032” thick) for sub-base Types VI and VII (late production) 7

20、4430 45C StudEccentric stud for landing adjustment 74429 45D StudEccentric stud for height adjustment M 74082 45E WasherFelt washer (l/g” O.D. x VV* LD. x 3/16 74086 46 SpringReject lever spring (.203 O.D. x 13/1634% turns) for sub-base having one piece reject lever 1 required 133 收音机爱 好者资料库 RadioFa

21、ns.CN MANUAL OF 1950 MOST-OFTEN-NEEDED RADIO DIAGRAMS RP-168 Series REPLACEMENT PARTSContinued . STOCK ILL. No. No. 74074 50 74085 51 - 54 - 55 - 56 - 57 74099 58 74426 59 33726 60 74083 61 74081 62 74088 63 - 64 33726 65 74245 66 74100 67 - 58 74078 69 - I 70 - 72 74071 73 74621 30870 74 - 89 74859

22、 90 74428 91 74431 92 *S-5578 10 74069 10B 74819 10B I DESCRIPTION SpringReject lever spring .203 O.D. x .53113 turns) lor sub-bases having two piece reject lever 2 required LeverReturn lever (includes spring Ill. No. 51) P2r9/Ir-37 turns) aClualin spripg -95 O.D. X Spring-Return lever latch spring

23、(.180 O.D. x .535 21 Vi turns) Washer T , Nut ( 10 damp trip lever Washer i l111- N?- 58) to pivot Screw ) arm shai 8 spring sleeve (ior 50 cvcle conversion), shaded pole type Motor115 volt, 60 cycle motor complete with con- nector and 5 mf. capacitorfor RP 168-2 only S“fi,.0r“0,0r capaci,or (S mi.)

24、 ior No. 74469 motor Connector Two prong male plug (connector) ior mo tor cable Spring Spring sleeve to convert motors No. 74624 to 50 cycle operation Screw No. 8 x V4 seli tapping screw ClampTo mount dash-pot WnShe?!l7?-eUmaLic d,ash-P complete with plunger No 7449qirtiTNhel5f moun,ing adjustment s

25、tuds No. 74429 (Ill. No. 45D) and No. 74430 (Ill. No. 45C) PICKUP ARM ASSEMBLIES Arm Pickup shell and studwith pivot (9B) and lead board*-balanceType I ior use with rest on motor- Arim-Pickup ar?1 she11 and studwith pivot (9B) and lead counter-balanceior Model CP-5203 only- black finish 1 ArmPickup

26、arm shell and studwith pivot (9B) and subcase*6*-balanceType 11 for use with rest on Arim-Plckup arm she11 and studwith pivot (9B) and lead counter-balanceior Model 45EY on ytwo- lone iinish 1 AfmPickup arm shell and sludwith pivot (9Bl_ less lead counter-balanceType 111ior use with either type of p

27、ickup rest Armpickup shell and sludwith pivot (9B)less balance springType Vior use with either type of pickup rest piv0|Pickup arm pivotfor use with arms No. 74041 s.amptd 97048O8) 74824 N 75058 arms Plsapphirecfnd* guardRhplld CmPlee iMlUdib9 PickupCrystal pickup cartridge complete including sapphi

28、re and guardRMP 128-2 g PickupMagnetic pickup cartridge complete with stylusior Model CP-5203 only P PickupCeramic pickup cartridge complete with stylusir Models QJY and QEY3 PwkupCeramic pickup cartridge complete with stylusior Model 9QV5 ScrewNo. 2-56 x 3/16 fillister head screw to mount No. 74067

29、 or No. 74625 crystal pickups or No S-5578 ceramic pickup 251? x Vt iillisler head to mount No. 74466 pickup (Model CP-S203) screw ior mounting No. 74984 pickup (Models QJY and QEY3) pSzlWl guard balance spring (.171” O.D, x .595 30 turns) ior Model 9QV5 only SpIgCounter-balance spring (.185 OD x 69

30、5_ 293/i turns) ior Model CP-5203 only SpringCounter balance spring (5/e O.D.11 turns) r Pickup Arm Types V and VI (Stock No. 74796) A7mSPTTpeSnv V? N 74798 Spribg “ Plbk“p WTypheriLirdndlV,erbalanCe Weiqht ior Pickup Arm weTMo No 7rfoU7n3dAhrmd SCreW hW N 75074 A-pivot arm and shall ior use with al

31、l pickup C5203OVln9 l6ad coun,er-balance except Model ArmPivot arm and shait lor Model CP-5203 onlv Tmy7es1VVandmviand Sha r US wi,h Pipk“P Arm SC?nN 4 X ,9/16 oval head counter-balance ad- |cr NTSur7,SaPbfedTeypneT7rRnD ,l0,e ,”-hiek wall) .or NS!r”lpm5!e nose REDior Turntable Type 111 NSlPm5 6 nos

32、eBLACKIor Turntable Type 1 r r, nose BLACKfor Turntable Type 111 spring lormed lor spindle No. 74090. No- 74620, or No. 74472 Spr ng Spindle nose springformed wirefor spin- die nose No. 74863 or No. 74795 P 63-2 ro*Tnd head machine screw for spin dle nose spring No. 74091 p n Spin?9|fi:enr?f0r ,slel

33、* refurn spring (.180 O.D x cJ-i* 16 .T” turns) for Turntable Types 1 and 11 Sp3/9 Separator shelf return spring (.118 O.D. x jj*J 16 ,urns)two requiredfor Turntable Type SefnTr?M/n7SKeiPaTat0r k,niie sheU and gear assembly T“rntable Types 1 and 11 y bhelfSeparator shelf for Turntable TyDe 111 Separ

34、atorSeparator knife for Turntable Type Ill Sh.ab)eSTypeWshiea1ndhn 9601 aSSembly Turn- ShaltStar wheel shait with cam ior Turntable Type ” t wasber for P f No. 74867 shait T Tbi Tur1able.,h TAN MARBLE1ZED mat T Ty,p(k) UT?e No. 74090 RED nose thin wall. TurntableTurntable with TAN MARBLE1ZED mat t l

35、i-se 74680 RED nose thick wall1 TTypeb le No!e743h RaM”82113 ma“ TUNoa7b2TBiACKlenosi,h BLACK ma-Type TU7472bBLATCKnnSsbie Wh HED No- TUNno,a7b41795TBUAcaKeosWe,h RED ma*Type Ka,Iurnlabl,e matTAN MARBLE1ZED MatTurntable mat-BLACK MatTurntable matRED SCnor.T,o0 6 ,x 134 filis,er had screw holds nose-

36、to spindle) two required for Turntable Tvoe 1 nnTr,N- 63/ ,X 156 head screw Sds 11 and lllPmd 8 ,W required ,or Turntable Types W?fher!4t 6 ilat washer Tor use under No. 74868 screw-two required Ior Turntable Types II and III Screw-No, 4-40 x 3 lillister head screw fir use Type09 N 33|_lwo required

37、Ior Turntable WNoheiT7N. 4 “CkwasherIor use with cam 111, No. 33) two required tor Turntable Type 1 CamFollower cam tor Turntable Type I Two different main levers (director lever) are used, dependina hratnf eTc, andtLdTifh ran?!,6 tiTble1 Assembly1 Typenif h“S “ d - Items listed but without Stock No

38、s. are not slock items. Parts list continued on page 138. 收音机爱 好者资料库 RadioFans.CN MANUAL OF 1950 MOST-OFTEN-NEEDED RADIO DIAGRAMS RP-168 Series CYCLE OF OPERATION Function Explanation Place records over 1. the center post and turn the power on Push start-reject 1. knob Records rest on separator shel

39、ves protruding from either side of the center post. Start-reject knob which is linked to start-reject slide (45A) moves trip pawl (37) into tripping position. 2. As the turntable rotates, the small projection (8A) (extending from the underside of the turntable) contacts end of trip pawl. Pickup arm

40、rises 1. As the turntable continues to rotate it carries the trip pawl (37) along for a short distance. 2. The stud (37A) on trip pawl applies force against director lever (41) in opposition to tension spring (42).- This force continues to be applied until the stud (41B) on the director lever has be

41、en forced through the slot and into the cycling cam (8B). 3. The end (41C) of the director lever extending below the motorboard moves away, allowing the muting switch (63) to close. 4. At the same time the stud (41 A) pushes the pickup arm lift lever (35) which in turn raises the pickup arm. CYCLING

42、 CAM Figure 3. 37A TRIP PAWL STUD APPLIES FORCE ON DIRECTOR LEVER TENSION SPRING 42 41C Figure 5. Figure 1. MUTING SWITCH 63 CLOSES Figure 4. STUD 58A Pickup arm moves out 1. The end (4IE) of the director lever (41) contacts stud (58A) on trip lever (58), starting the pickup arm on its outward movem

43、ent. 2. The stud (58A) on trip lever contacts pickup arm return lever (50), pushing it outward against the tension spring (51). 3. As the pickup arm reaches its outermost position, it is locked in position by the latch (50A) clamping the stud (58A) on the end of the pickup arm return lever. PICKUP A

44、RM MOVES OUTWARD .TRIP LEVER 58 Figure 6. 收音机爱 好者资料库 RadioFans.CN MANUAL OF 19S0 MOST-OFTEN-NEEDED RADIO DIAGRAMS RP-168 Series SPRING 4 SHELF Figure 8. ALLEL SHELF PICKUP ARM -:-r nmmr j-TT Wo LANDING IS DETERMINED BY !* Li STUD 50BV CONTACTING ECCENTRIC, STUD 45C; LANDING ADJ. STUD PICKUP ARM RETU

45、RN LEVER - TRIP LEVER Figure 10. STUD 41B Figure 12. TENSION SPRING 42 Vi MUTING SWITCH 63 OPENS n DISENGAGES n / projection II 1 zasBBBa*01 “WMBrai / / 5o c GEAR 5A IN AND OUT GEAR 6A V GEAR 7A Separator knives separate the lower CONTACT HERE 41C PREVENTS ROTATION Figure 9. Figure 11. 41E RETAINS C

46、ONTACT WITH STUD 58A TENSION SPRING 51 PICKUP ARM RETURN LEVER 50 STUD 41A CONTINUES TO CONTACT UNTIL SAPPHIRE I SETS ON RECORD PICKUP ARM PICKUP ARM LIFT LEVER 35 Figure 13. TRIP PAWL 37 STUD 8A , READY TO/ CONTACV AND START CYCLE AGAIN record from the stack and allows the record to drnp to the tur

47、ntable Pickup arm moves in for landing Sapphire is lowered to the record Playing of record is Completed and mechanism starts change Cycle I Figure 14. Figure 15. MANUAL OF 19S0 MOST-OFTEN-NEEDED RADIO DIAGRAMS Refer to illustrations on page 136 1. While the pickup arm is moving outward, the end (41C

48、) of the director lever (41) extending below the motorboard, con tacts and prevents the star wheel (62) from rotating. 2 Since the turntable continues to rotate and the star wheel and shaft remain stationary, the two small gears (5A and 6A) embedded in the upper section of the center post rotate aro

49、und the gear (7A) on the upper end of the star wheel shaft (7). 3. The eccentric extending from the upper end of the two embedded gears turns in a slot in the separator shelves (5 and 6). This causes the shelves to move in against the tension of spring (4). A later type of record separators (knives and shelves), illus trated in Figure 8,